Ingersoll-Rand THERMO KING Precedent C-600 User manual

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Ingersoll Rand’s Climate Solutions sector delivers energy-effi cient HVACR solutions for
customers globally. Its world class brands include Thermo King, the leader in transport
temperature control and Trane, a provider of energy effi cient heating, ventilating and air
conditioning systems, building and contracting services, parts support and advanced controls
for commercial buildings and homes.
SB-210+
Additional text information
to be placed here
TK 5XXXX-X-PL
TK 55494-2-MM
©2013 Ingersoll Rand Company
Printed in U.S.A.
314 West 90th Street
Minneapolis, MN 55420
Direct [phone]
Thermo King Corporate
Distributed by:
SB-210+
Additional text information
to be placed here
TK 5XXXX-X-PL
314 West 90th Street
Minneapolis, MN 55420
Direct [phone]
Thermo King Corporate
SB-210+
Additional text information
to be placed here
TK 5XXXX-X-PL
Distributed by:
314 West 90th Street
Minneapolis, MN 55420
Direct [phone]
Thermo King Corporate
Distributed by:
Precedent™ C-600
TK 55494-2-MM (Rev. 0, 06/13)
314 West 90th Street
Minneapolis, MN 55420
Direct [phone]
Thermo King Corporate
Maintenance Manual

Precedent™C-600
TK 55494-2-MM (Rev. 0, 06/13)
Copyright©2013 Thermo King Corp., Minneapolis, MN, U.S.A. Printed in
U.S.A.

2
This manual is published for informational purposes only and the information so provided should
not be considered as all-inclusive or covering all contingencies. If further information is required,
Thermo King Corporation should be consulted.
Sale of product shown in this manual is subject to Thermo King’s terms and conditions
including, but not limited to, the Thermo King Limited Express Warranty. Such terms and
conditions are available upon request. Thermo King’s warranty will not apply to any
equipment which has been “so repaired or altered outside the manufacturer’s plants as,
in the manufacturer’s judgment, to effect its stability.”
No warranties, express or implied, including warranties of fitness for a particular
purpose or merchantability, or warranties arising from course of dealing or usage of
trade, are made regarding the information, recommendations, and descriptions
contained herein. Manufacturer is not responsible and will not be held liable in contract
or in tort (including negligence) for any special, indirect or consequential damages,
including injury or damage caused to vehicles, contents or persons, by reason of the
installation of any Thermo King product or its mechanical failure.
The maintenance information in this manual covers unit models:
System Precedent C-600 (901819) Precedent C-600 (070008)
For further information, refer to:
Precedent C-600 Operator’s Manual TK 55692
Precedent C-600 Parts Manual TK 55688
Precedent SR-4 Microprocessor Control System Diagnostic Manual TK 55533
Precedent Single Temperature Systems Installation Manual TK 55496
TK482 and TK486 Engine Overhaul Manual TK 50136
X214, X418, X426 and X430 Compressor Overhaul Manual TK 6875
Diagnosing TK Refrigeration System TK 5984
Tool Catalog TK 5955
Evacuation Station Operation and Field Application TK 40612
ElectroStatic Discharge (ESD) Training Guide TK 40282
The information in this manual is provided to assist owners, operators and service people in the proper upkeep
and maintenance of Thermo King units.

3
Recover Refrigerant
At Thermo King, we recognize the need to preserve the environment
and limit the potential harm to the ozone layer that can result from
allowing refrigerant to escape into the atmosphere.
We strictly adhere to a policy that promotes the recovery and limits
the loss of refrigerant into the atmosphere.
In addition, service personnel must be aware of Federal regulations
concerning the use of refrigerants and the certification of technicians.
For additional information on regulations and technician certification
programs, contact your local Thermo King dealer.

4
CHANGES, COMMENTS and SUGGESTIONS
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needs. Any corrections, comments or suggestions are welcome. Please complete the following
information:
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Return to:
NORTH AMERICA
THERMO KING CORPORATION
314 West 90th Street
Mail Stop 38
Minneapolis, MN 55420
Attn: Service Department
EUROPEAN SERVED AREA
THERMO KING CORPORATION
Ingersoll Rand Climate Control Technologies
Monivea Road
Mervue, Galway, Ireland
Attn: Service Department

5
Table of Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Battery Installation and Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigerant Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigerant Oil Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Microprocessor Service Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Welding Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
First Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
First Aid, Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
First Aid, Refrigerant Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
First Aid, Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
First Aid, Electrical Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical Standby (SmartPower Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electric Motor and Overload Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electric Heater Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Standby Power Cord Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electric Fuel Heater (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance Inspection Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Unit Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Features and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Diesel Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
AC Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Condenser Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Evaporator Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Refrigeration Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Thermo King X430L Reciprocating Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Electronic Throttling Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SMART REEFER 4 (SR-4) Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CYCLE-SENTRY™ Start-Stop Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CargoLink™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
OptiSet Plus™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
FreshSet™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Opening the Front Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Engine Compartment Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unit Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Serial Number Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SMART REEFER 4 (SR-4) Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Microprocessor On/Off Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
HMI Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Turning Unit On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
If a Flash Drive is Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table of Contents
6
Configurable Soft Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Display Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
If a Language is Enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
If Log Alarms are Present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Turning The Unit Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
The Standard Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
The TemperatureWatch Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Changing The Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Numerical Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Named Products - OptiSet Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Both Numerical Setpoints and Named Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Changing the Setpoint - Numerical Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Changing the Setpoint - Named Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Changing the Setpoint - Both Numerical Setpoint and Named Product Available . . . . . . . . . . . . . . . . . . . .43
Starting the Diesel Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Starting the Electric Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Switching from Diesel to Electric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Switching from Electric to Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Initiating a Manual Defrost Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Terminating a Defrost Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Selecting Cycle Sentry or Continuous Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Using the Gauges Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Using The Sensors Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Using the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Pretrip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Performing a Pretrip Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Flash Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Languages (If Enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Data Logger (CargoWatch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Hourmeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
SmartPower Electric Standby Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Adjust Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Clear All ECU Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Manual Pretrip Inspection (Before Starting Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Loading Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Post Load Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Post Trip Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Thermo King Precedent Unit Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Electrical Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
AC Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Alternator Diagnostic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Alternator Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Base Controller Fuse F4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Test Equipment for Checking Voltage and Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Alternator Load Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
General Diagnostic and Warranty Evaluation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Field Current Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Battery Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Battery Charger (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Condenser Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
If Fan Runs Backwards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

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Evaporator Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Ground Fault Detection Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Base Controller Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Base Controller LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Base Controller Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
SMART REEFER 4 (SR-4) Microprocessor Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
REB (Radio Expansion Board) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Battery Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Air Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Unit Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Wire Harness Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Electric Standby AC Components for SmartPower Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Electrical Contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Generator Contactor – GC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Transformer Contactor – TRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Battery Charger Contactor 1 – BC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Battery Charger Contactor 2 – BC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Phase Contactor 1 – PC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Phase Contactor 2 – PC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Compressor Motor Contactor – CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Overload Relay – OL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Heater Contactor – HC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Heater Overload Relay – OLH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Fuse Block 1 – FB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Fuse Block 2 – FB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Auto Phase System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Evaporator Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Transformer (460 Vac Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Ultrasonic Fuel Level Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Important USFLS Replacement Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Electric Fuel Heater (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
TK486V25 Diesel Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
EMI 3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Engine Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Engine Oil Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Oil Filter Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Engine Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
ELC (Extended Life Coolant) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Antifreeze Maintenance Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Bleeding Air from the Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Engine Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Coolant Level Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Engine Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Fuel Line Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Fuel Return Line Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Bleeding the Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Draining Water from Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Fuel Filter/Water Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Fuel Filter/Water Separator Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Electric Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Electric Fuel Heater (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Engine Speed Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

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8
Injection Pump Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
Injection Pump Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
Injection Pump Reinstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Fuel Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Trochoid Feed Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Cold Start Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Engine Valve Clearance Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Crankcase Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
EMI 3000 Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
AC Generator Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Water Pump Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Compressor Drive Belt - SmartPower Units Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Alternator Belt - SmartPower Units Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Clutch (SmartPower Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Drive Bushing Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Dowel Pin Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Refrigeration Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Testing The Refrigerant Charge With An Empty Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Testing the Refrigerant Charge with a Loaded Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Testing for an Overcharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Moisture Indicating Sight Glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Refrigerant Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Oil Collection Container . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Checking Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
High Pressure Cutout Switch (HPCO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Three-Way Valve Condenser Pressure Bypass Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
Electronic Throttling Valve (ETV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Pressure Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Hot Gas Bypass Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Refrigeration Service Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Refrigeration System Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
Compressor Coupling Removal (Standard Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Compressor Coupling Installation (Standard Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Curbside Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139
Roadside Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Radiator Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Discharge Vibrasorber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
In-Line Condenser Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Condenser Check Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Bypass Check Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Receiver Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Filter-Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
Expansion Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Evaporator Coil Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Three-Way Valve Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Removal/Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
End Cap Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
Assembly/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
Three-Way Valve Condenser Pressure Bypass Check Valve Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
Pilot Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
Suction Vibrasorber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
High Pressure Cutout Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
High Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
Discharge Pressure Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150

Table of Contents
9
Suction Pressure Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Electronic Throttling Valve (ETV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Hot Gas Bypass Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Compressor Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Checking Compressor Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Structural Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Unit and Engine Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Condenser, Evaporator, and Radiator Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Micro-Channel Coil Cleaning Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Defrost Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Condenser Fan Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Evaporator Fan/Blower Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Mechanical Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Electric Standby Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Refrigeration Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Refrigeration Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Cool Cycle With Electronic Throttling Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Heat/Defrost Cycle With Electronic Throttling Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Diagram Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

10
Safety Precautions
Thermo King recommends that all service be
performed by a Thermo King dealer. However,
you should be aware of several general safety
practices:
The symbol appears next to a point that is
particularly important
General Practices
DANGER: Denotes the possibility of
serious injury or death.
WARNING: Denotes the possibility of
serious equipment damage or serious
personal injury.
CAUTION: Denotes the possibility of
minor to severe equipment damage or
personal injury.
DANGER: Do not operate the compressor
with the discharge service valve closed.
Thisconditionincreasesinternalpressure,
which can cause an explosion.
DANGER: Never apply heat to a sealed
refrigeration system or container. Heat
increases internal pressure, which might
cause an explosion.
DANGER: Refrigerant in the presence of
an open flame, spark or electrical short
produces toxic gases that are severe
respiratory irritants.
DANGER: Keep your hands, clothing and
tools clear of fans when working on a unit
that is running. Loose clothing might
entangle moving pulleys or belts, causing
serious injury or possible death.
DANGER: Do not inhale refrigerant. Use
caution when working with refrigerant or
a refrigeration system in any confined
area with a limited air supply, such as a
cargo area or garage. Refrigerant
displaces air and can cause oxygen
depletion, resulting in suffocation and
possible death.
DANGER: Avoid engine operation in
confined spaces and areas or
circumstances where fumes from the
engine could become trapped and cause
serious injury or death.
WARNING: Make sure your gauge
manifold hoses are in good condition
before using them. Never let them come in
contact with moving belts, fans, pulleys or
hot surfaces. Defective gauge equipment
can damage components or cause serious
injury.
WARNING: Always wear goggles or safety
glasses when working on a unit.
Refrigerant liquid, oil and battery acid can
permanently damage your eyes. See “First
Aid” on page 13.
WARNING: Use extreme caution when
drilling holes in a unit. Holes might
weaken structural components. Holes
drilled into electrical wiring can cause a
fire or explosion.
WARNING: Exposed coil fins can cause
lacerations. Service work on the
evaporator or condenser coils is best left to
a certified Thermo King technician.
WARNING: Do not apply heat to a closed
cooling system. Before applying heat to a
cooling system, drain it. Then flush it with
water and drain the water. Antifreeze
contains water and ethylene glycol. The
ethylene glycol is flammable and can
ignite if the antifreeze is heated enough to
boil off the water.
WARNING: Be careful when using
ladders or scaffolding to install or service
a unit. Observe the manufacture’s safety
labels and warnings.
CAUTION: Make sure all mounting bolts
are tight and are the correct length for
their applications. Improper torque and
incorrect bolt lengths can damage
equipment.

Safety Precautions
11
NOTE: In the USA, EPA Section 608
Certificationis required to work on refrigeration
systems.
Battery Installation and Cable
Routing
Battery Removal
This order is important because the frame is
grounded to the negative battery terminal. If the
negative terminal is still connected, a complete
circuit exists from the positive terminal of the
battery to the frame. Metal objects contacting the
positive side and the frame simultaneously will
cause sparks or arcing. If there are sufficient
hydrogen gases emitted from the battery, an
explosion might occur, causing equipment
damage, serious injury, even death.
Refrigerant Hazards
WARNING: Improperly installed battery
could result in a fire or explosion! A
Thermo King approved battery must be
installed and properly secured to the
battery tray.
WARNING: Improperly installed battery
cables could result in fire or explosion!
Battery cables must be installed, routed
and secured properly to prevent them from
rubbing, chaffing or making contact with
hot, sharp or rotating components.
WARNING: Do not attach fuel lines or
any additional wiring harnesses to the
battery cables as this could cause an
electrical fire!
CAUTION: Do not connect other
manufacturer’s equipment or accessories
to the Thermo King unit. This could result
in severe damage to equipment and void
the warranty!
CAUTION: Set all unit electrical controls
to the OFF position before connecting
battery cables to the battery to prevent unit
from starting unexpectedly and causing
personal injury.
CAUTION: Always wear protective
clothing, gloves and eye wear when
handling and installing batteries. Battery
acid can cause serious burns when
exposed to eyes or skin. If battery acid
contacts skin or clothing, wash
immediately with soap and water. If acid
enters your eye, immediately flood it with
running cold water for at least twenty
minutes and get medical attention
immediately.
CAUTION: Always cover battery
terminals to prevent them from making
contact with metal components during
battery installation. Battery terminals
grounding against metal could cause the
battery to explode.
DANGER: Disconnect the negative
battery terminal (-) first when removing a
battery. Connect the positive terminal (+)
first when installing a battery.
DANGER: Do not use a Halide torch.
When a flame comes in contact with
refrigerant, toxic gases are produced.
These gases can cause suffocation, even
death.
DANGER: Store refrigerant in proper
containers, out of direct sunlight and away
from intense heat. Heat increases pressure
inside storage containers, which can cause
them to burst.
DANGER: Do not use oxygen (O2) or
compressed air for leak testing. Oxygen
mixed with refrigerant is combustible.
WARNING: Wear butyl lined gloves when
handling refrigerant to help prevent
frostbite.

Safety Precautions
12
Refrigerant Oil Hazards
Electrical Hazards
High Voltage
Low Voltage
CAUTION: Refrigerant in a liquid state
evaporates rapidly when exposed to the
atmosphere, freezing anything it contacts.
Be careful when handling refrigerant to
protect your skin from frostbite.
CAUTION: When being transferred,
refrigerant must be in liquid state to avoid
possible equipment damage.
CAUTION: When transferring
refrigerant, use a process that prevents or
greatly restricts refrigerant from escaping
into the atmosphere. Refrigerant damages
the earth’s upper ozone layer.
WARNING: Protect your eyes from
contact with refrigerant oil. The oil can
cause serious eye injuries. Avoid
prolonged or repeated contact with
refrigerant oil. To prevent irritation, wash
your hands and clothing thoroughly after
handling the oil.
CAUTION: Use the correct oil in Thermo
King systems to avoid damaging
equipment and invalidating its warranty.
CAUTION: Do not mix refrigerant oils
because that can cause system damage.
CAUTION: Use dedicated equipment to
prevent contaminating systems with the
wrong type of oil.
CAUTION: Store refrigerant oil in an
approved sealed container to avoid
moisture contamination.
CAUTION: Do not expose the refrigerant
oil to the air any longer than necessary.
The oil will absorb moisture, which results
in much longer evacuation times and
possible system contamination.
CAUTION: Wipe up spills immediately.
Refrigerant oil can damage paints and
rubber materials.
DANGER: Lethal amounts of voltage are
present in some electrical circuits. Use
extreme care when working on an
operating refrigeration unit.
WARNING: Do not make rapid moves
when working on high voltage circuits in
refrigeration units. Do not grab for falling
tools because you might accidentally touch
a high voltage source.
WARNING: Use tools with well insulated
handles. Never hold uninsulated metal
tools near exposed, energized conductors.
WARNING: Treat all wires and
connections as if they were high voltage
until a meter and wiring diagram indicate
otherwise.
WARNING: Never work alone on high
voltage circuits in the refrigeration unit.
Another person should be nearby to shut
off the unit and provide aid in the event of
an accident.
WARNING: Safety glasses, rubber-
insulated gloves and cable cutters should
be near your work area, in the event of an
electrical accident.
WARNING: Use caution when working
with electrical circuits that contain
capacitors. Some capacitors hold a
significant charge that might cause burns
or shocks if accidentally discharged. Make
sure capacitors are discharged before
working on electrical circuits.
WARNING: Control circuits used in
refrigeration units are low voltage (12 to
24 volts dc). This voltage is not dangerous,
but the large amount of amperage
available from the alternator can cause
severe burns if accidentally shorted to
ground with metal objects, such as tools.

Safety Precautions
13
Microprocessor Service
Precautions
Take precautions to prevent electrostatic
discharge when servicing the microprocessor and
its related components. Even tiny amounts of
current can severely damage or destroy electronic
components.
Observe the following precautions when servicing
a microprocessor control system to avoid
damaging electronic components. Refer to the
appropriate microprocessor diagnosis manual and
the Electrostatic Discharge Training Guide (TK
40282) for more information.
• If the microprocessor has a power switch, turn
it OFF before connecting or disconnecting the
battery.
• Disconnect power to the unit.
• Avoid wearing clothing that generates static
electricity (wool, nylon, polyester, etc.).
• Wear a wrist strap (P/N 204-622 or its
equivalent) with the lead end connected to the
microprocessor’s ground terminal. These
straps are available from most electronic
equipment distributors. DO NOT wear these
straps with power applied to the unit.
• Avoid unnecessary contact with the electronic
components.
• Store and ship electronic components in
antistatic bags and protective packaging.
• Leave electronic components in their antistatic
packing materials until you’re ready to use
them.
• After servicing any electronic components,
check the wiring for possible errors before
restoring power to the unit.
• Never use a battery and a light bulb to test
circuits on any microprocessor-based
equipment.
Welding Precautions
Take precautions before electrically welding any
portion of the unit or the vehicle to which it is
attached. Ensure that welding currents are not
allowed to flow through the unit’s electronic
circuits.
Observe the following precautions when welding
to avoid damaging electronic components.
• If the microprocessor has a power switch, turn
it OFF before connecting or disconnecting the
battery.
• Disconnect power to the unit.
• Disconnect all wire harnesses from the
microprocessor.
• If there are any electrical circuit breakers in
the control box, switch them OFF.
• Close the control box.
• Components that could be damaged by
welding sparks should be removed from the
unit.
• Use normal welding procedures, but keep the
ground return electrode as close to the area
being welded as practical. This will reduce the
likelihood of stray welding currents passing
through any electronic circuits.
First Aid
First Aid, Refrigerant
In the event of frostbite, protect the frozen area
from further injury, warm the area rapidly and
maintain respiration.
EYES : For contact with liquid, immediately flush
eyes with large amounts of water. CALL A
PHYSICIAN.
SKIN: Flush area with large amounts of warm
water. Do not apply heat. Remove contaminated
clothing and shoes. Wrap burns with dry, sterile,
bulky dressing to protect from infection. CALL A
PHYSICIAN. Wash contaminated clothing before
reuse.
WARNING: Do not wear jewelry, watches
or rings because they increase the risk of
shorting out electrical circuits and
damaging equipment or causing severe
burns.

Safety Precautions
14
INHALATION: Move victim to fresh air and use
CPR (cardio pulmonary resuscitation) or
mouth-to-mouth resuscitation to restore breathing,
if necessary. Stay with victim until emergency
personnel arrive.
First Aid, Refrigerant Oil
EYES : Immediately flush with water for at least
15 minutes. CALL A PHYSICIAN. Wash skin
with soap and water.
INGESTION: Do not induce vomiting.
Immediately contact local poison control center or
physician.
First Aid, Engine Coolant
EYES : Immediately flush with water for at least
15 minutes. CALL A PHYSICIAN. Wash skin
with soap and water.
INGESTION: Do not induce vomiting.
Immediately contact local poison control center or
physician.
First Aid, Electrical Shock
Take IMMEDIATE action after a person has
received an electrical shock. Get quick medical
assistance, if possible.
The source of the shock must be quickly stopped,
by either shutting off the power or removing the
victim. If the power cannot be shut off, the wire
shouldbe cut with an non-conductive tool, such as
a wood-handle axe or thickly insulated cable
cutters. Rescuers should wear insulated gloves
and safety glasses, and avoid looking at wires
being cut. The ensuing flash can cause burns and
blindness.
If the victim must be removed from a live circuit,
pull the victim away with a non-conductive
material. Use wood, rope, a belt or coat to pull or
push the victim away from the current. DO NOT
TOUCH the victim. You will receive a shock from
current flowing through the victim’s body. After
separating the victim from power source,
immediately check for signs of a pulse and
respiration. If no pulse is present, start CPR
(cardio pulmonary resuscitation). If a pulse is
present, respiration might be restored by using
mouth-to-mouth resuscitation. Call for emergency
medical assistance.

15
Specifications
Engine
Model TK486V25 (Tier 4)
Number of Cylinders 4
Cylinder Arrangement In-line vertical, number 1 on flywheel end
Firing Order 1-3-4-2
Direction of Rotation Counterclockwise viewed from flywheel end
Fuel Type No. 2 diesel fuel under normal conditions
No. 1 diesel fuel is acceptable cold weather fuel
Oil Capacity 12 quarts (11.4 liters) crankcase and oil filter
Fill to full mark on dipstick
Oil Type API Classification CI-4 or better
(ACEA Rating E3 or better for Europe)
Oil Viscosity 14 F to 122 F (-10 C to 50 C): SAE 15W-40 (Synthetic)
5 to 104 F (-15 to 40 C): SAE 15W-40
-13 to 104 F (-25 to 40 C): SAE 10W-40
-13 to 86 F (-25 to 30 C): SAE 10W-30
-22 to 122 F (-30 to 50 C): SAE 5W-40 (Synthetic)
Below -22 F (-30 C): SAE 0W-30 (Synthetic)
Engine rpm: Low Speed Operation
High Speed Operation 1450 ± 25 rpm 2200 ± 25 rpm
Engine Oil Pressure 18 psig (127 kPa) minimum in low speed
45 to 57 psig (310 to 390 kPa) in high speed
Intake Valve Clearance 0.006 to 0.010 in. (0.15 to 0.25 mm)
Exhaust Valve Clearance 0.006 to 0.010 in. (0.15 to 0.25 mm)
Valve Setting Temperature 70 F (21 C)
Low Oil Pressure Switch (Normally Closed) 17 ± 3 psig (117 ± 21 kPa)
Engine Coolant Thermostat 160 F (71 C)
Engine Coolant Type ELC (Extended Life Coolant), which is “RED”
Use a 50/50 concentration of any of the following
equivalents:
Chevron Dex-Cool
Texaco ELC
Havoline Dex-Cool®
Havoline XLC for Europe
Shell Dexcool®
Shell Rotella
Saturn/General Motors Dex-Cool®
Caterpillar ELC
Detroit Diesel POWERCOOL® Plus
CAUTION: Do not add “GREEN” or “BLUE-GREEN”
conventional coolant to cooling systems using “RED”
Extended Life Coolant, except in an emergency. If
conventional coolant is added to Extended Life
Coolant, the coolant must be changed after 2 years
instead of 5 years.
Coolant System Capacity 7.5 quarts (7.1 liters)
Radiator Cap Pressure 15 psig (103 kPa)

Specifications
16
Drive: Standard Units Direct to compressor; belts to AC generator, alternator, and
water pump
SmartPower™ Units Centrifugal clutch to compressor; belts to electric standby
motor, AC generator, alternator, and water pump
Engine (Continued)
Belt Tension
Belt Use of Frequency Gauge P/N 204-1903
to measure frequency (Hz) is recommended.
New Belt Field Reset
AC Generator and Alternator Belt - Standard Units:
37 or 65 Amp Alternator
120 Amp Alternator 106 Hz (111 lbs) 121 Hz (144 lbs) 92 Hz (84 lbs) 105 Hz (108 lbs)
AC Generator Belt - SmartPower Units and
Standard Units with Optional Battery Charger 106 Hz (111 lbs) 92 Hz (84 lbs)
Water Pump Belt 126 Hz (40 lbs) 118 Hz (32 lbs)
Compressor Drive Belt - SmartPower Units Only
12 HP Electric Motor
19 HP Electric Motor 131 Hz (236 lbs) 150 Hz (300 lbs) 114 Hz (177 lbs) 130 Hz (223 lbs)
Alternator Belt - SmartPower Units Only:
All Alternators 216 Hz (75 lbs) 187 Hz (56 lbs)
Refrigeration System
Compressor Thermo King X430LSC5
Refrigerant Charge—Type 14.5 lb (6.6 kg)—R404A
Compressor Oil Charge 4.3 qt (4.1 liters)*
Compressor Oil Type Polyol Ester type P/N 203-513
Heat/Defrost Method: Engine Operation
Electric Operation Hot gas Hot gas and optional electric heater strips
High Pressure Cutout 470 +7/-35 psig (3241 + 48/-241 kPa)
Automatic reset @ 375 ± 38 psig (2586 ± 262 kPa)
* When the compressor is removed from the unit, oil level should be noted or the oil removed from the
compressor should be measured so that the same amount of oil can be added before placing the
replacement compressor in the unit.
Electrical Control System
Low Voltage 12.5 Vdc
High Voltage 230 Vac from AC generator at engine low speed
345 Vac from AC generator at engine high speed
Battery One, group C31, 12 volt, (950 CCA recommended for
operation below -15 F [-26 C])
Fuses See “Base Controller Fuses” on page 83, and other fuses
on pages 87 and 89.
Battery Charging 12 volt, 37 amp, brush type, Thermo King Alternator
Voltage Regulator Setting 13.95 to 14.35 volts @ 77 F (25 C)

Specifications
17
Electrical Components
NOTE: Disconnect components from unit circuit to check resistance.
Component Current Draw (Amps)
at 12.5 Vdc Resistance—Cold (Ohms)
Fuel Solenoid: Pull-in Coil
Hold-in Coil 35 to 45 0.5 0.2 to 0.3 24 to 29
High Speed (Throttle) Solenoid 2.9 4.3
Air Heater 60-70* 0.14
Pilot Solenoid 0.7 17.0
Electronic Throttling Valve:
Coil A (Red [EVA] and Blue [EVB] Wires)
Coil B (Black [EVC] and White [EVD] Wires) — —20 to 35 20 to 35
Hot Gas Bypass Valve (if used) 1.1 11.1
Starter Motor 350-475**
* Typical current draw during preheat.
** On-the-engine cranking check. Bench test is approximately 140 amps.
AC Generator
Low Engine Speed (1450 rpm) Output
High Engine Speed (2200 rpm) Output
230 Vac at 59 Hz Nominal Vac - Measured Vac, Load
Dependent
345 Vac at 90 Hz Nominal Vac - Measured Vac, Load
Dependent
Fan Motors
Evaporator Fan Motor: LowSpeedPowerRating
High Speed Power Rating
High Fan Speed at Low Engine Speed
Low Fan Speed at High Engine Speed
Low Fan Speed at Low Engine Speed
High Speed Current Draw at Low Engine Speed
Low Speed Current Draw at High Engine Speed
Low Speed Current Draw at Low Engine Speed
1.20 hp (0.90 kW)
1.75 hp (1.31 kW)
1770 rpm at low engine speed (1450 rpm)
1800 rpm at high engine speed (2200 rpm)
1180 rpm at low engine speed (1450 rpm)
3.8 amps at low engine speed (1450 rpm)
3.1 amps at high engine speed (2200 rpm)
2.6 amps at low engine speed (1450 rpm)
Condenser Fan Motor (each: PowerRating
Fan Speed at Low Engine Speed
Fan Speed at High Engine Speed
Current Draw at Low Engine Speed
Current Draw at High Engine Speed
0.50 hp (0.37 kW)
1770 rpm low engine speed (1450 rpm)
2700 rpm at high engine speed (2200 rpm)
1.8 amps (per motor) at low engine speed (1450 rpm)
2.0 amps (per motor) at high engine speed (2200 rpm)
Electrical Standby (SmartPower Units Only)
NOTE: A transformer is used to convert 460 Vac to 230 Vac for the condenser and evaporator fan
motors in units configured to use electric standby input voltage of 460 Vac.
Electric Motor and Overload Relay
Voltage/Phase/Frequency Horsepower Kilowatts rpm Full Load
(amps) Overload Relay Setting (amps)
230/3/60 12.0 9.0 1760 31.2 34
460/3/60 12.0 9.0 1760 15.6 20
460/3/60 19.0 14.2 3500 21.7 32

Specifications
18
Electric Heater Strips
Number 3
Watts 1000 watts (each)
Resistance 48 ohms (each)
Overload Relay Setting 9 amps, 230V unit
6 amps, 460V unit
Standby Power Cord Requirements
Supply Circuit Breaker: 12 HP Motor 230/3/60 70 amps
12 HP Motor 460/3/60 40 amps
19 HP Motor 460/3/60 60 amps
Extension Cord Size: 12 HP Motor 230/3/60 8 AWG Power Cable, 4-Conductor, 2000V, Type W Power
Cable, 25 to 50-foot length
12 HP Motor 230/3/60 6 AWG Power Cable, 4-Conductor, 2000V, Type W Power
Cable, 75-foot length
12 HP Motor 460/3/60 10 AWG Power Cable, 4-Conductor, 2000V, Type W Power
Cable, up to 75-foot length
19 HP Motor 460/3/60 8 AWG, 4-Conductor, 2000V, Type W Power Cable, up to
75-foot length
Electric Fuel Heater (Optional)
Electric Fuel Heater: Resistance
Current Draw at 12.5 Vdc
Internal Thermostat Minimum Closing Temp.
Internal Thermostat Maximum Opening Temp.
0.9 to 1.1 ohms
11.4 to 13.9 amps
30 F (-1 C)
75 F (24 C)
2FH/2HP Fuse 20 amps

19
Maintenance Inspection Schedule
Pretrip Every
1,500
Hours
Every
3,000
Hours*
Annual/
4,500
Hours
Inspect/Service These Items
Microprocessor
•Run Pretrip Test (see “Performing a Pretrip Test” on page 51).
Engine
•Check fuel supply.
•Check engine oil level.
••• •Inspect belts for condition and proper tension.
••• •Check engine oil pressure hot, on high speed (should display “OK”).
••• •Listen for unusual noises, vibrations, etc.
••• •Check engine coolant level and antifreeze protection (-30 F [-40 C]).
•• •Drain water from fuel tank and check vent.
•• •Inspect/clean electric fuel pump filter.
•• •Check and adjust engine speeds (high and low speed).
•• •Check condition of drive coupling bushings per Service Bulletin T&T 171.
•Check engine mounts for wear.
•Replace EMI 3000 air cleaner element (see “EMI 3000 Air Cleaner” on
page 119) at 3,000 hours or two years (whichever occurs first).
•Replace fuel filter/water separator.
•Change engine oil and oil filter (hot). Requires oil with API Rating CI-4 or
better (ACEA Rating E3 for Europe).
•Adjust engine valve clearance.
—Change ELC (red) engine coolant every 5 years or 12,000 hours. Units
equipped with ELC have an ELC nameplate on the expansion tank (see
page 98).
•Test fuel injection nozzles at least every 3,000 hours. **
—Replace fuel return lines between fuel injection nozzles every 10,000
hours.
Electrical
•• •Inspect battery terminals and electrolyte level.
•• •Inspect wire harness for damaged wires or connections.
•Inspect AC generator and alternator wire connections for tightness.
•Inspect electric motors.
•Inspect and if required re-torque all electrical connections on the
contactors in the Fan Control Box to 15 in-lb (1.7 N•m).
•Inspect and if required re-torque all electrical connections on the
contactors in the High Voltage Box in Smart Power units. Torque the
connections on the Compressor Motor Contactor, Phase Contactors, and
Overload Relay to 22 in-lb (2.5 N•m). Torque the connections on all other
contactors to 15 in-lb (1.7 N•m).
*3,000 hours or two years, whichever occurs first.
** Based on EPA 40 CFR Part 89.