Hyster T5ZAC Operating instructions

Hyster B476 (T5ZAC) Forklift Service Repair
Manual

ELECTRICAL SYSTEM
T5ZAC [B476];
T7ZAC [B477];
C60ZAC [B478];
C80ZAC [B479]
PART NO. 1687930 2200 SRM 1357

SAFETY PRECAUTIONS
MAINTENANCE AND REPAIR
•When lifting parts or assemblies, make sure all slings, chains, or cables are correctly fastened, and
that the load being lifted is balanced. Make sure the crane, cables, and chains have the capacity
to support the weight of the load.
•Donotliftheavypartsbyhand,usealiftingmechanism.
•Wear safety glasses.
•DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair on electric
lift trucks. Disconnect the battery ground cable on internal combustion lift trucks.
•Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT THE LIFT
TRUCK ON BLOCKS in the Operating Manual or the Periodic Maintenance section.
•Keep the unit clean and the working area clean and orderly.
•Use the correct tools for the job.
•Keep the tools clean and in good condition.
•Always use HYSTER APPROVED parts when making repairs. Replacement parts must meet
or exceed the specifications of the original equipment manufacturer.
•Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force
to remove parts.
•Always fasten a DO NOT OPERATE tag to the controls of the unit when making repairs, or if the
unit needs repairs.
•Be sure to follow the WARNING and CAUTION notes in the instructions.
•Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel are
flammable. Be sure to follow the necessary safety precautions when handling these fuels and
when working on these fuel systems.
•Batteries generate flammable gas when they are being charged. Keep fire and sparks away from
the area. Make sure the area is well ventilated.
NOTE: The following symbols and words indicate safety information in this
manual:
WARNING
Indicates a condition that can cause immediate death or injury!
CAUTION
Indicates a condition that can cause property damage!
On the lift truck, the WARNING symbol and word are on orange back-
ground. The CAUTION symbol and word are on yellow background.

Electrical System Table of Contents
TABLE OF CONTENTS
General ............................................................................................................................................................... 1
Description of Operation.................................................................................................................................... 3
Special Precautions............................................................................................................................................ 6
Discharging the Capacitors........................................................................................................................... 6
Electrical System Checks .................................................................................................................................. 7
Repairs................................................................................................................................................................ 9
Calibration Mode ........................................................................................................................................... 9
Controller, Replace ........................................................................................................................................ 9
Remove....................................................................................................................................................... 9
Install......................................................................................................................................................... 10
Control Module .............................................................................................................................................. 10
Check.......................................................................................................................................................... 10
Remove....................................................................................................................................................... 12
Install......................................................................................................................................................... 12
Contactor........................................................................................................................................................ 12
Check.......................................................................................................................................................... 12
Remove....................................................................................................................................................... 12
Install......................................................................................................................................................... 13
Key Switch.......................................................................................................................................................... 13
Remove ........................................................................................................................................................... 13
Install ............................................................................................................................................................. 14
Parking Brake Switch........................................................................................................................................ 15
Remove ........................................................................................................................................................... 15
Install ............................................................................................................................................................. 15
Fuses................................................................................................................................................................... 15
Horn.................................................................................................................................................................... 16
Replace ........................................................................................................................................................... 16
High Speed Switch Assembly............................................................................................................................ 16
Remove ........................................................................................................................................................... 16
Install ............................................................................................................................................................. 16
Control Handle................................................................................................................................................... 17
Disassemble ................................................................................................................................................... 17
Hand-brake................................................................................................................................................ 18
Upper Cover............................................................................................................................................... 18
Handle Shaft.............................................................................................................................................. 18
Lower Cover............................................................................................................................................... 19
Directional/Throttle Switch ...................................................................................................................... 19
Neutral Switches................................................................................................................................... 19
Throttle Sensor...................................................................................................................................... 19
Assemble ........................................................................................................................................................ 23
Directional/Throttle Switch ...................................................................................................................... 23
Neutral Switches................................................................................................................................... 23
Throttle Sensor...................................................................................................................................... 23
Lower Cover............................................................................................................................................... 24
Handle Shaft.............................................................................................................................................. 24
Upper Cover............................................................................................................................................... 24
Hand-brake................................................................................................................................................ 25
Lift Pump Motor (C60ZAC and C80ZAC Only)................................................................................................... 25
Remove ........................................................................................................................................................... 25
Install ............................................................................................................................................................. 25
Troubleshooting.................................................................................................................................................. 26
©2008 HYSTER COMPANY i

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Table of Contents Electrical System
TABLE OF CONTENTS (Continued)
General Troubleshooting ............................................................................................................................... 26
This section is for the following models:
T5ZAC [B476];
T7ZAC [B477];
C60ZAC [B478];
C80ZAC [B479]
ii

2200 SRM 1357 General
General
This section includes removal, disassembly, checks,
adjustments, assembly, installation, and trou-
bleshooting procedures for the electrical system
components on the T5-7ZAC and C60-80ZAC truck
models. Components covered in other sections, such
as motors and industrial batteries, are not included
in this section.
See the section AC Motor Controller 2200 SRM
1352 for additional information on the AC motor con-
troller and for information on troubleshooting fault
codes, adjusting parameters, and testing the motor
controller.
See the section AC Motor Repair 620 SRM 1283 for
general information on traction motor troubleshoot-
ing and repair.
See the section Periodic Maintenance 8000 SRM
1368 for instructions on removing and installing the
drive unit compartment covers and for minimum mo-
tor brush length specifications.
See the section Diagrams 8000 SRM 1034 for the
wiring diagrams and schematics.
Throughout this section the terms right, left, front,
rear, forward, and reverse relate to the viewpoint of
an operator riding on the truck with the forks trail-
ing. See Figure 1.
1

General 2200 SRM 1357
A. RH SIDE
B. LH SIDE C. FORWARD D. REVERSE
Figure 1. Truck Orientation
2

2200 SRM 1357 Description of Operation
Description of Operation
This section includes information on the following
components:
•Control Handle Switches
•Hall Effect Directional/Speed Control
•Key Switch
•Parking Brake Switch
•High Speed Switch
•Hand Brake Assembly (Brake and Regen Switches)
•Battery Discharge Indicator/Hourmeter (BDI)
•Fuses
•Control Module
•AC Motor Controller
•Brake Coil
•Drive Motor
•Lift Pump Motor (C60-80ZAC)
•Contactor
ON/OFF switches are used for:
•Key Switch
•Lift and Lower Functions (C60-80ZAC)
•Horn
•Fast Speed (Foot Switch)
•Brake and Regen Switches
•Throttle Neutral Signal
•Parking Brake
A directional/throttle control, neutral switches, and
push-button function switches are housed in the con-
trol handle.
The Hall effect throttle control is used to provide a
directional/speed signal. The neutral switches ver-
ify the throttle is in neutral position during the self-
check at startup. The horn switch (and lift and lower
switches on the C60-80ZAC) are mounted in the top
cover of the control handle. These switches send sig-
nals to the controller activating each individual func-
tion.
The control module converts analog signals from the
control handle to digital signals for the controller to
read.
The main contactor opens to remove power from the
traction and lift circuits in the event of an electric
failure.
A spring applied/electrically released brake is
mounted to the top of the traction motor. When the
key switch is in the ON position and the parking
brakeswitchisintheOFF position, the brake coil
energizes, disengaging the brake. This pulls the
brake pressure plate away from the friction disc
allowing the drive motor to turn freely.
A two-stage hand brake assembly (see Figure 2) is
mounted just below the control handle. The hand
brake assembly consists of two independent hand
levers, various linkages, and three switches to per-
form two different braking functions. When both
levers are released (Position One), no braking is
applied. If either hand lever is placed in the second
position, the controller places the traction motor into
regen mode.
The brake coil releases the pressure plate mechan-
ically engaging the brake when either hand lever is
placed in the third position, the parking brake switch
is in the ON position,orwhenthekeyswitchisinthe
OFF position.
On the C60-80ZAC trucks, the motor controller en-
ergizes the lift pump motor when the lift button is
depressed. The motor controller activates the sole-
noid coil opening the lowering valve (located at the
pump), when the lower switch is depressed. Refer to
Figure 3 or Figure 4. The controller protects the lift
pump and motor assembly, eliminating the need for
a height limit switch. The controller will stop the lift
pump motor 0.6-0.8 seconds after current flow to the
lift pump motor exceeds the preset limit. This occurs
when the lift truck has reached the maximum lift
height, when lifting more than the specified load ca-
pacity, or if an electrical fault occurs. The controller
will interrupt power to the lift pump motor immedi-
ately and resets when the lift button is released.
1. BRAKES DISENGAGED (POSITION ONE)
2. REGENERATIVE BRAKING (POSITION TWO)
3. MECHANICAL BRAKING (POSITION THREE)
Figure 2. Hand Brake Position
3

Description of Operation 2200 SRM 1357
1. KEY SWITCH
2. BATTERY DISCHARGE INDICATOR (BDI)
3. PARKING BRAKE SWITCH
4. PARKING BRAKE
5. TRACTION MOTOR
6. HORN
7. LIFT PUMP MOTOR
8. CONTROL MODULE
9. DIAGNOSTIC CONNECTOR
10. CONTACTOR
11. CONTROLLER
12. FUSE
13. BATTERY CONNECTOR
Figure 3. Electrical Components (C60-80ZAC)
4

2200 SRM 1357 Description of Operation
1. KEY SWITCH
2. BATTERY DISCHARGE INDICATOR (BDI)
3. PARKING BRAKE SWITCH
4. PARKING BRAKE
5. TRACTION MOTOR
6. HORN
7. CONTROL MODULE
8. DIAGNOSTIC CONNECTOR
9. CONTACTOR
10. CONTROLLER
11. FUSE
12. BATTERY CONNECTOR
Figure 4. Electrical Components (T5-7ZAC)
5

Special Precautions 2200 SRM 1357
Special Precautions
DISCHARGING THE CAPACITORS
WARNING
The capacitor in the transistor controller can
hold an electrical charge after the battery is
disconnected. To prevent electrical shock and
personal injury, discharge the capacitor before
inspecting or repairing any component. Wear
safety glasses. Make certain the battery has
been disconnected. DO NOT use a screwdriver
to discharge the traction motor controller.
WARNING
To avoid personal injury and prevent electrical
shock, perform the following steps before per-
forming any troubleshooting or adjustments,
and connecting or disconnecting a handset or
PC.
CAUTION
To avoid controller damage, always disconnect
the battery. Discharge the capacitor and never
put power to the controller with any power
wire disconnected. Never short any controller
terminal or motor terminal to battery. Make
sure to use proper procedures when servicing
the controller.
1. Move the truck to a safe, level area. Turn the
key switch to the OFF position and disconnect
the battery.
2. Remove the drive unit compartment cover to ac-
cess the drive unit compartment.
3. Discharge the capacitors in the controllers by
connecting a 200-ohm, 2-watt resistor across the
controller’s B+ and B terminals. See Figure 5.
DO NOT short across the motor controller ter-
minalswithascrewdriverorjumperwire.
4. Remove the 200-ohm, 2-watt resistor before re-
connecting the battery.
1. CONTROLLER
2. POSITIVE CONNECTION
3. INSULATED JUMPER WIRES
4. 200-OHM, 2-WATT RESISTOR
5. NEGATIVE CONNECTION
Figure 5. Discharging Controller
6

2200 SRM 1357 Electrical System Checks
Electrical System Checks
WARNING
Disconnect the battery before opening the com-
partment cover or inspecting or repairing the
electrical system. If a tool causes a short cir-
cuit, the high current flow from the battery can
cause personal injury or property damage.
The capacitor in the controller can hold an
electrical charge after the battery is discon-
nected. To prevent electrical shock, disconnect
the battery and discharge the capacitor before
inspecting or repairing any component in the
drive unit compartment. Always wear safety
glasses.
CAUTION
The correct meter polarity is necessary for the
checks. The voltage checks are made between
the point indicated and battery negative. Con-
nect the meter negative to battery negative.
Always disconnect the battery and discharge
the capacitor before disconnecting cables
from the controller. Never put power to the
controller with any cables or wires discon-
nected. Never short any controller or motor
terminal to the battery. Always follow proper
procedure when working in the electrical sys-
tem.
1. Turn the key switch to the OFF position.
2. Disconnect and separate the battery connectors.
NOTE: Thebatterydoesnothavetoberemovedto
check the specific gravity.
3. Check the specific gravity of the battery. If the
specific gravity is less than 1.260, the battery is
not fully charged or is damaged. A fully charged
battery has a specific gravity of 1.270 to 1.290.
A discharged battery has a specific gravity of ap-
proximately 1.165 or less. Refer to Industrial
Battery 2240 SRM 1.
4. Remove the drive unit compartment covers. See
Periodic Maintenance 8000 SRM 1368.
5. Discharge the capacitor. See Special Precautions
in this section.
6. The electric lift truck has a two-wire system. The
frame must not be a common electrical path. Us-
ing an ohmmeter, check for 50,000 ohms or more
between each terminal of the battery connector
(truck end) and a clean connection on the frame.
Remove any electrical paths between the con-
troller and the frame of the lift truck, such as
a dirty battery case. Carbon dust in a motor or
other parts can cause an electrical path. Check
for additional equipment that may provide an
electrical path to the frame.
7. Check for voltage between each terminal of the
battery connector (battery end) and a clean con-
nection on the frame. Normally there is small
voltage (less than 30% of the battery voltage) be-
tween the battery and the frame, even though the
resistance is very high. A higher voltage can in-
dicate a dirty or damaged battery. Clean battery
and battery compartment as necessary.
8. Visually check for parts or wires that are loose or
damaged.
WARNING
Some checks require the battery to be recon-
nected. Do not connect the battery until the
point of the procedure when you are directed
to do so. Raise the drive wheel of the truck and
position on solid hardwood blocks to prevent
unexpected movement when working with the
battery connected.
9. Always follow proper procedure when working in
the electrical system..See Table 1.
NOTE: Make an identification of any wires before you
disconnect them. The wires must be connected cor-
rectly after checks or repairs.
7

Electrical System Checks 2200 SRM 1357
Table 1. Voltage Checks
LIFT TRUCK WILL NOT MOVE IN EITHER DIRECTION.
NO FAULT IS DISPLAYED ON THE CONTROLLER.
Possible Causes:
1. Battery not connected.
2. Control fuse is damaged.
3. Key switch or brake switch is damaged.
4. Transistor controller connector unplugged.
5. Transistor controller is damaged.
1.0 Check for battery voltage on the battery
side of control fuse. ————
——
1.01 Battery voltage at control fuse.
Check for open control fuse.
|
|
|——
1.02 No battery voltage at control fuse. Connect
battery or check wiring between battery and
fuse.
1.1 Check for battery voltage at control fuse
terminal of key switch. ————
——
1.1.1 Battery voltage at key switch. Check for
damaged key switch. Check connector.
|
|
|——
1.1.2 No voltage at key switch. Wire to key switch or
connectionsisdamaged.
1.3 Key switch closed. Brake switch closed.
Check for battery voltage at
B+ terminal of transistor controller. ———— ——
1.3.1 Battery voltage at B+ terminal. Check fault
code. If no fault code, possible damaged control
handle card.
|
|
|——
1.3.2 No voltage at B+ terminal. Check B terminal.
Check fault code.
8

2200 SRM 1357 Repairs
Repairs
WARNING
DO NOT make repairs or adjustments unless
you have been properly trained and authorized
to do so. Improper repairs and adjustments
can create dangerous operating conditions.
DO NOT operate a lift truck that needs re-
pairs. Report the need for repairs to your
supervisor immediately. If repair is neces-
sary, turn the key switch to the OFF position,
disconnect the battery, and attach a DO NOT
OPERATE tag to the control handle.
Disconnect the battery before opening the
drive unit compartment cover or inspecting or
repairing the electrical system. If a tool causes
ashortcir
cuit, the high current flow from the
battery can cause personal injury or property
damage.
The capacitor in the transistor controller can
hold an electrical charge after the battery is
disconnected. To prevent electrical shock and
personal injury, discharge the capacitor before
inspecting or repairing any component in the
drive unit compartment. See Special Precau-
tions in this section.
All checks, adjustments, and repairs in the drive
unit compartmentaredonewiththecompartment
cover removed. Remove the drive unit compartment
cover for access to the electrical components and
discharge the capacitor. See the section Periodic
Maintenance 8000 SRM 1368. Replace the covers
when service has been completed.
CALIBRATION MODE
In Calibration Mode, service screens can be accessed
through the battery discharge indicator LCD. In-
structions for the various calibration procedures can
be foundinthesectionsUser Interface,Techni-
cian Functions On-Board Dash Display 2200
SRM 1354 or User Interface,Supervisor Func-
tions On-Board Dash Display 2200 SRM 1353.
CONTROLLER, REPLACE
Remove
CAUTION
DO NOT replace the controller until you have
thoroughly checked all other electrical compo-
nents and are sure the controller is malfunc-
tioning.
1. Move the truck to a safe, level location. Turn
the key switch to the OFF position, disconnect
thebattery,andblockthedrivetiretoprevent
unexpected movement.
2. Remove the drive unit compartment covers. See
the section Periodic Maintenance 8000 SRM
1368.
3. If installed, remove hardware securing the shield
cover from the controller (option only). See Fig-
ure 6.
1. CONTROLLER
2. SHIELD BOX
(OPTION)
3. SHIELD COVER
(OPTION)
4. LABEL
5. COVER SCREWS
6. NUT
7. STUD
8. NUT
9. LOCKWASHER
10. NUT
Figure 6. Shield Box and Cover (Arctic Option)
9

Repairs 2200 SRM 1357
1. B– TERMINAL
2. B+ TERMINAL (POS CONNECTION STD)
3. MAIN FUSE (STD LOCATION)
4. + TERMINAL (POS CONNECTION EE)
5. MAIN CONNECTOR
6. TRACTION MOTOR POS (TERMINAL U)
7. TRACTION MOTOR POS (TERMINAL W)
8. TRACTION MOTOR POS (TERMINAL V)
9. PUMP MOTOR POS (TERMINAL P)
10. LABEL (PART NUMBER)
Figure 7. Controller Wiring
4. Discharge the capacitor. See Special Precautions
in this section.
5. Tag and disconnect wires from the controller. See
Figure 7.
6. Remove mounting screws and remove controller.
Install
1. Install replacement controller on lift truck using
mounting hardware.
2. On models with the Arctic option, install shield
box to controller studs and secure using four
nuts.
3. Connect wires and cables to the proper terminals
as identified during the removal procedure.
4. Connect battery and turn the key switch to the
ON position.
5. Turn parking brake to the OFF position and test
for proper operation.
6. Install the drive unit compartment covers. See
the section Periodic Maintenance 8000 SRM
1368.
CONTROL MODULE
Check
The control module converts analog signals from the
control handle to digital signals for the controller to
read. If the controller is reporting an input error
fault code, then the control module may be malfunc-
tioning. Check the control module using the follow-
ing steps. See Figure 8.
1. Connect the battery and turn the key switch to
the ON position. Makesuretheparkingbrake
switch is in the OFF position.
2. Connect the negative voltmeter lead to the nega-
tive battery cable connection at the controller.
3. Disconnect the output connector (J5) from the
control module.
4. Using the positive voltmeter lead, test pin #6 at
the output connector (J5-6).
5. If there is no voltage at J5-6 then troubleshoot
the controller. See the section AC Motor Con-
troller 2200 SRM 1352.
6. If the voltmeter shows the proper reading (+24V),
check the input connector (J4) voltages. See Ta-
ble 2.
NOTE: Voltage should be present at J4-2, J4-3, J4-6,
and J4-9 ONLY while activating the corresponding
function. See Table 2.
7. If the input values differ from those in the table,
troubleshoot the control handle components, con-
troller, and wiring. Make any necessary repairs,
and recheck the input values.
8. If the input values are correct, replace the control
module. See Remove.
NOTE: ETACC may be used to check communication
between control handle, control module, and traction
controller. See the section AC Motor Controller
2200 SRM 1352.
10

2200 SRM 1357 Repairs
1. CONTROL MODULE
2. ATTACHING HARDWARE 3. OUTPUT CONNECTOR (J-5) 4. INPUT CONNECTOR (J-4)
Figure 8. Control Module
Table 2. Input Connector (J4) Voltages
Control Handle Function
Connector None Lift Lower Horn Forward Reverse
J4-1 X
J4-2 +5V
J4-3 +5V
J4-4 GND GND GND GND GND GND*
J4-5 OPEN OPEN OPEN OPEN GND GND
J4-6 +24V
J4-7 +24V +24V +24V +24V +24V +24V
J4-8
J4-9 0to+2.5V +2.5 to +5V
J4-10 +5V +5V +5V +5V +5V +5V
* Open when in neutral; Ground when throttle activated.
11

Repairs 2200 SRM 1357
Remove
1. Turn the key switch to the OFF position and dis-
connect the battery.
2. Remove drive unit compartment covers for ac-
cess to the electrical components and discharge
the capacitor. See the section Periodic Mainte-
nance 8000 SRM 1368 and Special Precautions
in this section.
3. Disconnect both connectors from the control mod-
ule.
4. Remove nuts and washers from mounting studs
and remove control module from mounting studs.
Install
NOTE: Install new control module with the ten-prong
connector (J4) nearest the MDU as removed.
1. Place new control module onto mounting studs
and install washers and nuts to studs.
2. Install connectors to control module.
3. Connect the battery and turn the key switch to
the ON position. Test truck for proper operation.
4. Install the drive unit compartment covers. See
the section Periodic Maintenance 8000 SRM
1368. Return the truck to service.
CONTACTOR
NOTE: Tag and identify wires before disconnecting
them. The wires must be connected correctly after
checks or repairs. See Figure 10.
Check
Disconnect coil wires. Test contactor coil using
an ohmmeter to measure the resistance. Use the
highest resistance indication. The coil should read
52 ohms ±10%. Remove and replace contactor if
resistance readings indicate a short circuit in both
directions or if there is an open circuit in both di-
rections. Make sure coil wires are connected to the
proper terminals.
Remove
1. Move the truck to a safe location, turn the key
switch to the OFF position and disconnect the
battery.
2. Remove the drive unit compartment covers. See
the section Periodic Maintenance 8000 SRM
1368.
3. Discharge the capacitor. See Special Precautions
in this section.
4. If the lift truck has an EE rating, remove cover
of the contactor box for access to the contactor
terminals. See Figure 9.
5. Label and disconnect the wires and cables from
the contactor assembly.
6. On EE units, remove fuse, buss-bar, and stand-
off to access the contactor mounting screws.
7. Remove two mounting screws located on the side
of the contactor and remove contactor assembly.
See Figure 10.
1. CONTACTOR (POWER OUT)
2. CONTACTOR (TO BATTERY POS)
3. CONTACTOR (POWER IN)
4. GROMMETS
5. CONTACTOR (TO CONTROLLER)
6. TO CONTROLLER B+
7. FUSE
8. BUS BAR
9. ENCLOSURE BOX
Figure 9. Contactor (EE Enclosure)
12

2200 SRM 1357 Key Switch
1. CONTACTOR (TO CONTROLLER)
2. CONTACTOR (POWER OUT)
3. CONTACTOR (POWER IN)
4. CONTACTOR (TO BATTERY POS)
Figure 10. Contactor
Install
1. Position contactor assembly in place and install
two mounting screws into the side of the contac-
tor.
2. On EE units, install stand-off, buss-bar, and fuse
to contactor panel and contactor as removed.
3. Install wires and cables to the contactor assem-
bly as removed.
4. Install cover of contactor box on EE units.
5. Connect the battery, turn the key switch to the
ON position and test for proper operation.
6. Install the drive unit compartment covers. See
the section Periodic Maintenance 8000 SRM
1368.
Key Switch
REMOVE
Toggle switches may be used in place of key switches
certain applications. The term "key switch" will be
used for both types of switches in the following in-
structions. See Figure 11 or Figure 12.
1. Move lift truck to a safe area and block drive
wheel to prevent unexpected movement.
2. Disconnect battery and turn the key switch to the
OFF position.
3. Remove drive unit compartment covers. See Pe-
riodic Maintenance 8000 SRM 1368.
4. Discharge the capacitor. See Special Precautions
in this section.
NOTE: Make note of the orientation of the key switch
for proper installation.
5. Remove retaining nut from top of the key switch.
6. Remove the key switch from mounting hole in
frame.
7. Tag and identify all wires and connections for ref-
erence during reassembly. Disconnect wires from
switch.
13

Key Switch 2200 SRM 1357
Figure 11. Key Switch (Toggle Type)
Figure 12. Key Switch
INSTALL
Toggle switches may be used in place of key switches
certain applications. The term "key switch" will be
used for both types of switch in the following instruc-
tions. See Figure 11 or Figure 12.
1. Connect wires to proper terminals, as identified
during removal.
2. Position the key switch through mounting hole
in frame and adjust switch to proper height by
turning lower jam nut.
3. Install retaining nut to the key switch. Make
certain switch is properly aligned by referencing
label before tightening retaining nut.
4. Connect battery and test the key switch by turn-
ing it to the ON and OFF positions. Check for
proper operation.
5. Install drive unit compartment covers. See Pe-
riodic Maintenance 8000 SRM 1368.
14