American Eagle SRS-40 User manual

SRS-40
Rotary Screw Compressor
Owner’s Manual
American Eagle
740 North State Street
PO Box 169
Garner, IA 50438
800-392-3015
www.americaneagleacc.com
Subject to Change without Notication.
© 2015 American Eagle Last Revision: 02/10/15
Safety • Operation • Maintenance • Installation • Parts

Page ii | American Eagle®SRS-40 Owner’s Manual
SRS-40 Manual Revisions
Date of Revision Section Revised Description of Revision

American Eagle®SRS-40 Owner’s Manual | Page iii
Table of Contents
For Technical Questions, Information, Parts, or Warranty, Call Toll-Free at
800-321-3741
Hours: Monday - Friday, 8:00 a.m. - 5:00 p.m. CST
Or email at the following addresses:
Technical Questions, and Information: [email protected]
Order Parts: [email protected]
Warranty Information: [email protected]
Introduction ....................................................................................................................................................iv
Chapter 1 - Specications..................................................................................................................................v
Chapter 1 - Operation ........................................................................................................................................1
General Operation ........................................................................................................................................ 1
Operator Requirements ................................................................................................................................ 1
Before Start-Up ............................................................................................................................................... 2
Start-Up Procedure ........................................................................................................................................ 2
SRS-40 Air Operations .................................................................................................................................... 3
Safety Decals of Note ................................................................................................................................... 3
Chapter 2 - Maintenance...................................................................................................................................5
General Maintenance Guidelines ............................................................................................................... 5
Service Intervals ............................................................................................................................................. 6
Oil Level 7
Condensation Drain ...................................................................................................................................... 7
Changing the Oil ........................................................................................................................................... 8
Oil Filter 9
Separator Cartridge ...................................................................................................................................... 9
Intake Filter .................................................................................................................................................... 10
Minimum Pressure Valve .............................................................................................................................. 10
Belt Tension ................................................................................................................................................... 11
Hydraulic Oil Cooler/Compressor Oil Cooler ............................................................................................ 12
Chapter 3 - Installation .....................................................................................................................................13
Component Installation .............................................................................................................................. 13
SRS-40 Hydraulic Schematic ....................................................................................................................... 14
Temperature Gauge Installation ................................................................................................................ 15
Hydraulic System .......................................................................................................................................... 16
Air System 16
Compressor Pressure Switch ....................................................................................................................... 17
Typical Hydraulic Circuit for Single Stage Pump ...................................................................................... 18
Typical Hydraulic Circuit for Tandum (Two Part) Pump .......................................................................... 19
Typical Hydraulic Circuit for Compressor with Auxiliary Cooler .............................................................. 20
Chapter 4 - Assembly Drawings ......................................................................................................................21
SRS-40 Case Assembly - PN 70380 .............................................................................................................. 21
SRS-40 Assembly Drawing - PN 69886 ........................................................................................................ 22
SRS-40 Assembly Bill - PN 69886 ................................................................................................................... 23
Chapter 5 - Troubleshooting.............................................................................................................................25
Chapter 6 - Replacement Parts .......................................................................................................................27

Page iv | American Eagle®SRS-40 Owner’s Manual
Introduction
American Eagle® Air Compressors are designed to provide safe and dependable service
for a variety of operations. With proper use and maintenance, these air compressors will
operate at peak performance for many years.
To promote this longevity, carefully study the information contained in this manual before
putting the equipment into service. Though it is not intended to be a training manual for
beginners, this manual should provide solid guidelines for the safe and proper usage of the
air compressor.
Once you feel comfortable with the material contained in this manual, strive to exercise
your knowledge as you safely operate and maintain the air compressor. This process is vital
to the proper use of the unit.
A few notes on this manual:
A copy of this manual is provided with every air compressor and can be found in the hard
plastic manual case that is installed on the chassis. A copy of this manual shall remain with
the air compressor at all times.
Throughout the manual, three signal words will be used to bring attention to important
items:
A NOTICE signal word indicates a practice not related to physical injury.
A WARNING signal word indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
A DANGER signal word indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Information contained within this manual does not cover all maintenance, operating, or
repair instructions pertinent to all possible situations. Please be aware that some sections
of this manual contain information pertaining to American Eagle®manufactured air
compressors in general and may or may not apply to your specic model.
This manual is not binding. American Eagle reserves the right to change, at any time, any
or all of the items, components, and parts deemed necessary for product improvement or
commercial/production purposes. This right is kept with no requirement or obligation for
immediate mandatory updating of this manual.
In closing:
If more information is required or technical assistance is needed, or if you feel that any
part of this manual is unclear or incorrect, please contact the American Eagle Customer
Service Department by phone at 800-392-3015 or email at service@americaneagleacc.
com.
WARNING
NOTICE
DANGER

American Eagle®SRS-40 Owner’s Manual | Page v
Chapter 1 - Specications
SPECIFICATIONS SRS-40
Hydraulic System 12 GPM
Compressor RPM 7500-8000 RPM
System Pressure 2800 PSI
Hydraulic Relief 3500 PSI
Max Air Pressure 150 PSI
Air Relief 200 PSI
Delivery (At Max Speed) 40 CFM @ 100 PSI
Weight 225 lbs.
Dimensions (Length) 26.81”
Dimensions (Width) 17.44”
Dimensions (Height) 21.19”
Electrical 12 VDC
Crankcase Oil Capacity 4 Quarts
Oil Reservoir Capacity Minimum: 26 Gallon
Plumbing/Fittings Steel W/JIC Fittings
Cooler Fan 1710 CFM, 12 Volt
Drive Belt Drive
Manifold 6061 Aluminum
Control Valve 12 VDC Solenoid

Page vi | American Eagle®SRS-40 Owner’s Manual

American Eagle®SRS-40 Owner’s Manual | Page 1
Operation is limited to the following people:
A. Qualied individual.
B. Trainees under direct supervision of the qualied individual.
C. Test or maintenance individual.
D. Air compressor inspector.
Qualied individuals must:
A. Demonstrate the ability to understand all decals, the owner’s manual, and any other
information required for safe operation of the air compressor.
B. Be able to demonstrate the ability to safely control the air compressor.
C. Know all safety regulations.
D. Be responsible for maintenance requirements.
E. Understand and be fully capable of implementing all emergency procedures.
F. Understand all operating procedures as outlined by this manual.
Operator Requirements
It is the responsibility of the owner to instruct the operator in the safe operation of the
equipment and to provide the operator with properly maintained equipment.
American Eagle® Air Compressor operators must conform to the
qualications specied in this manual. Trainees or untrained persons shall be under the
direct supervision of qualied persons.
Operators shall consult with the owner of the equipment regarding current safety
regulations and required personal protective equipment.
Operators should never operate the air compressor while under the adverse inuence of
alcohol, drugs, or medication.
Please take note that American Eagle is not liable for accidents incurred by the air
compressor because of non-fulllment from the operator’s side of current rules, laws, and
regulations.
WARNING
General Operation
Chapter 1 - Operation
Safety should be the n umber one thought on every operator’s mind. Three factors should
exist for safe operation: a qualied operator, well-maintained equipment, and the proper
use of this equipment.
This chapter contains information regarding the safety and operation of American Eagle®
manufactured air compressors and should be read and understood completely by
everyone working with or near the air compressor before putting the unit into operation.
Failure to follow operating, maintenance, or safety instructions can result
in death or serious injury.
WARNING

Page 2 | American Eagle®SRS-40 Owner’s Manual
Inspect unit for any visible signs of damage. Check hoses (air and hydraulic) for weak or
worn condition and make sure that all connections are secure.
Do not operate the compressor if it is damaged, improperly adjusted or
not assembled properly.
Do not operate the compressor with any of the guards removed.
Check the oil level in the compressor (See Section “Changing the Oil”). If oil is needed, use
American Eagle® Synthetic Compressor Oil (P/N C0087) or an equivalent synthetic oil.
Check the air intake lter to make certain that it is clean and unobstructed. A dirty air lter
is a possible cause of reduced air output.
The air taken in by the air compressor must be free of ammable fumes
and vapors.
To use the compressor:
1. Start the vehicle engine and engage the hydraulic system.
2. The compressor can now be activated using the compressor switch. This energizes the
hydraulic solenoid sending oil to the hydraulic drive motor and starts the compressor. The
system will now function automatically.
Never use the compressor as a booster pump and/or to compress a
medium other than atmospheric air.
3. Once engaged, adjust the engine speed control to ensure that the compressor speed
does not exceed 8000 rpm under load. Adjustment instructions are provided with the
speed control unit.
WARNING
WARNING
WARNING
WARNING
Start-Up Procedure
Before Start-Up

American Eagle®SRS-40 Owner’s Manual | Page 3
Activating the compressor switch sends power to the cooling fan, hydraulic solenoid
valve and normally closed terminal (87A) on the Bosch relay. The normally open hydraulic
solenoid valve closes, sending hydraulic oil to the motor operating the compressor. The fan
and compressor operate whenever the hydraulic system is engaged and the compressor
switch is on. Power from the common terminal (30) on the Bosch relay goes to the line
terminals on the compressor pressure switch. If the air pressure is below the kick out pressure
(115 psi minimum/120 psi maximum) the pressure switch closes sending power to the
engine speed control and compressor air inlet solenoid valve. The engine speeds up and
the compressor begins pumping air. When the air pressure reaches the kick out pressure
setting (145 psi minimum/150 psi maximum) the pressure switch opens, shutting the air inlet
valve and deactivating the speed control.
The compressor is protected by an air pressure and compressor oil switch gauge. The coil
on the Bosch relay is grounded through these two switch gauges. If the air pressure or
compressor oil temperature exceeds the switch gauge settings they close, completing
the circuit and energizing the relay coil. The normally closed switch on the Bosch relay
opens cutting power to the compressor pressure switch. The compressor stops pumping air
and the engine slows down. The switch gauges are set at the factory and should not be
adjusted.
SRS-40 Air Operations
Safety decals serve to inform the viewer of the hazard type, how to avoid the hazard, and
the consequences of not avoiding the hazard.
Decals are considered safety equipment. They must be maintained, as would other safety
devices. All safety instruction plates, notices, load charts and any other decal applied to
the air compressor or vehicle must be kept legible and in good condition. Replace any
decals that are missing, damaged, or illegible.
Safety Decals of Note
WARNING
Failure to obey the following can
result in death or serious injury:
Read and understand all
manuals and safety signs
before operating or
servicing this equipment.
Do not use air from
compressor for breathing
or food processing.
Keep clear while unit is in
operation.
Do not operate unit without
cover attached.
Do not touch any internal
surfaces during or shortly
after operation.
Do not remove caps, plugs, or
other components while unit is
running or has pressure in tank.
Disconnect power and relieve all
pressure prior to maintenance.
Do not search for leaks with hands or
other body parts.
Relieve pressure before disconnecting
lines.
Tighten all connections before applying
pressure.
Breathing Hazard Burn Hazard Crush Hazard
Fluid Hazard Pressure Hazard
Untrained Operator Hazard

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American Eagle®SRS-40 Owner’s Manual | Page 5
Chapter 2 - Maintenance
Maintenance is an important part of extending the life of any American Eagle®Air
Compressor. Performing key maintenance items on a scheduled program will prevent
unnecessary downtime.
Before performing any maintenance to the air compressor, consider the following:
• Only qualied service personnel are to perform maintenance on the
Air compressor. Never modify or alter any of the equipment, whether mechanical,
electrical, or hydraulic, without explicit approval from American Eagle.
• Shut off the engine and disengage the PTO.
• Place all controls in the off position and secure operating features from inadvertent
motion.
• Disable all power to the air compressor and remove any stored energy.
• Before performing any maintenance on the compressor, place a warning tag on the
hydraulic power source or disconnect the hoses from the compressor motor to prevent
accidental startup of the compressor.
• Do not disconnect hydraulic hoses while there is still pressure in those
components.
• Do not touch the air compressor or plumbing until the unit has cooled
down. The surface of the air compressor and the plumbing between the compressor
and the cooler may reach temperatures above 150 degrees.
• Replace parts with American Eagle® approved parts only.
• Keep the air compressor clean and free from grease build-up, oil and dirt to prevent
slippery conditions.
• Label or tag parts when disassembling.
• Immediately repair or have repaired any components found to be inadequate.
• Always connect hoses to the compressor before energizing the power source. Be sure all
hose connections are tight.
• Do not attempt to adjust or disable the compressors air pressure relief
valve. This valve protects the compressor in the event of blockage or air control system
malfunction.
General Maintenance Guidelines
WARNING
WARNING
WARNING
NOTICE

Page 6 | American Eagle®SRS-40 Owner’s Manual
General preventative maintenance includes maintaining proper uid level in both systems and the general cleanliness of the equipment.
Proper uids according to the specications are required.
USE AE SYNTHETIC COMPRESSOR OIL P/N C0087. COMPRESSOR CRANKCASE CAPACITY IS 3 QUARTS.
Service Intervals
The following table is a list of routine maintenance items, including service intervals.
Service intervals are listed as hours, days, or weeks, whichever occurs rst. American
Eagle recommends that these service intervals be followed. Before performing any
maintenance function, turn off compressor, hydraulic system, truck engine and remove
keys to assure that compressor is not started. Be sure all air pressure in unit is relieved.
Failure to do so may result in injury or equipment damage.
Maintenance Schedule Daily Weekly Monthly Hourly
Drain air tanks.
Check compressor case oil level.
Check fittings and airlines.
Check hydraulic fluid level.
Inspect and clean air intake filters. 100
Check oil cooler. Clean as needed.
Replace coalescering/separator cartridge. 12 3000
Change compressor oil and oil filter
.6
1000
Replace hydraulic filter
.6
Replace air filter
.3
100
Tighten all fittings and fasteners. 3
Check all electrical connections. 3

American Eagle®SRS-40 Owner’s Manual | Page 7
Oil Level
Condensation Drain
The oil level in the compressor case is an important factor for the operational reliability of
the system.
Check Intervals:
1. Before starting unit.
2. Every 100 operating hours
Check Procedures:
1. Turn off the compressor, hydraulic system and truck
engine to ensure that compressor is not started.
2. Wait for one full minute.
3. Slowly unscrew the oil ll cap on the compressor
case (also referred to as the separator receiver).
4. Check the oil level.
5. If the oil level is under the minimum level, add oil to maximum level as shown.
6. Replace cap and hand tighten. Unit is ready to be put into service.
Note: The screw-type oil ll cap is has a bleed hole which will release pressure in the
compressor case. The bleed hole is exposed after the cap is loosened about two turns. If
there is still pressure in the case, wait a few minutes for it to bleed off.
Condensation (water) in the oil affects the operation and life of the screw compressor.
Screw compressors are especially vulnerable due to the fact that the oil is used for both
sealing and lubrication. Both oil and water are removed from the air in the separator
cartridge and returned to the compressor case. Condensation builds up faster when the
compressor is operated intermittently in humid conditions. Under these conditions, the
condensate should be drained each day before start up when the compressor is cold.
Possible Malfunctions:
Insufcient lubrication.
Poor air/oil separation and high pressure across the separator cartridge.
Corrosion and rust formation.
Maintenance Procedure
1. Unscrew oil ll cap.
2. Place a container under the oil drain pipe and carefully unscrew the oil drain cap.
3. Drain the water from the compressor case until nothing but oil comes out, replace the
cap and tighten.
4. Fill the compressor case with oil to maximum and replace oil ll cap.
5. Turn on compressor and operate for three minutes.
6. Check oil level and ll if low.
7. Dispose of condensate (mixture on water and oil) in accordance with local and federal
regulations.
MAX
MIN

Page 8 | American Eagle®SRS-40 Owner’s Manual
Changing the Oil
Change the oil with the compressor at operating temperature of 140-175 degrees F (60-80
degrees C).
Compressor must be
stopped and all air receivers discharged
before changing oil. Compressor oil is hot
and can cause burns.
1. Turn off the compressor, hydraulic
system and truck engine to ensure that
compressor is not started.
2. Discharge air receiver.
3. Wait for one full minute.
4. Slowly unscrew the oil ll cap on the
compressor case.
5. Place a container under the oil drain
pipe and carefully unscrew the oil drain
cap.
6. Drain the oil from the compressor case, then replace and tighten oil drain cap.
7. Rell with oil to maximum level and replace oil ll cap. Oil capacity is 4 quarts.
8. Operate compressor for 3 minutes.
9. Check oil and ll to maximum if necessary.
Oil Recommendations
Screw compressors must be operated using the
most suitable oil for operation. The compressor
manufacturer must approve this oil for use. The
oil must also be suitable for use in unfavorable
conditions such as: contamination of the intake air
by gases, solvent vapors, exhaust gases, and high
ambient temperature conditions.
Suitable types and brands of oil may be specied
on request. Suitable screw compressor oils can
be mineral oils, synthetic oils, and biological
degradable oils.
The substances and materials used in the
compressor such as seals must be taken into
account when selecting the types of oil. Corrosion
or other material degradation must not occur.
Do not mix different types of oil.
In the case of ambient temperatures
close to freezing, prevent the unit from freezing.
Pipeline Materials:
The oil used in screw compressors can degrade
plastics used in air pipelines.
Oil Requirements
High aging stability
High disperse capacity
Low emulsication tendency
Flash point: above 400°F/ 200°C
Pour-point: 5° below lowest ambient temperature
minimum
Minimum foaming
High corrosion protection
Hydraulic or turbine oil
Basic oil: solvate
Operating temperature: up to 230°F / 110°C
Viscosity class: ISO 46 or ISO VG 68
Viscosity at 104°F / 40°C: ca. 42-50 mm2/s (cST)
Oil Drain
Oil Fill
Oil Drain
Oil Fill
WARNING
NOTICE

American Eagle®SRS-40 Owner’s Manual | Page 9
Oil Filter
Separator Cartridge
The oil lter is located to the front of the unit. When viewing the unit from the oil ll cap end,
the oil lter will be to the left front. It is necessary to remove the side panel to access the oil
lter. Replace the lter after the rst 50 hours of service and every 1,000 hours thereafter.
Maintenance Procedure
1. Turn off the compressor, hydraulic system and
truck engine to ensure that compressor is not
started.
2. Slowly unscrew and remove the oil lter with an
oil lter wrench.
3. Grease the new lter gasket.
4. Before installing, hold the new lter upright and
ll it with the same oil as used in the compressor
case.
5. Screw the new lter onto the compressor.
Hand tighten, do not use a lter wrench. Turn
approximately 3/4 turn after gasket contacts
the compressor.
6. Run compressor for 3 minutes.
7. Check oil level and ll if necessary.
The separator cartridge is disposable and is located on top of the lter support.
The cartridge has to be replaced at least once per year and at a maximum of 3000
operating hours. If intake air is often contaminated or the oil quality is poor, the cartridge
will tend to clog earlier and will need to be changed more often.
Maintenance Procedure:
1. Turn off the compressor, hydraulic system and
truck engine to ensure that compressor is not
started.
2. Slowly unscrew and remove cartridge with an
oil lter wrench.
3. Screw the new cartridge onto the lter support.
Hand tighten, do not use a lter wrench. Turn
approximately 3/4 turn after gasket contacts
the compressor.
4 Write the date of change and operating hours
on cartridge.
5. Run compressor for 3 minutes.
6. Check cartridge to ensure that it is tight.
OIL FILTER
PN 24588
Separator
Cartridge
PN 24589

Page 10 | American Eagle®SRS-40 Owner’s Manual
Intake Filter
Minimum Pressure Valve
The air intake lter should be changed every 100 hours of operation. The lter may
require changing or cleaning more frequently if the compressor is operated in a dusty
environment.
Maintenance Procedure:
1. Turn off the compressor, hydraulic system and truck engine to
ensure that compressor is not started.
2. Open lter lid and carefully remove lter.
3. Carefully remove dust from the intake housing.
4. Clean and install or install new lter:
• Clean lter be tapping outside of lter on a hard surface.
• Clean lter with compressed air by blowing from the inside to
the outside. Limit air pressure to 75 psi.
5. Close lter lid.
6. Test run compressor.
Any dirt or debris that enters the compressor intake
when the air lter is removed can cause irreversible damage.
The minimum pressure valve is set at the factory. If oil blows out through the air lter the
minimum pressure valve may need to be set.
Minimum Pressure Valve Set Procedure
1. Remove the lock nut.
2. Turn the adjusting screw in until it just touches.
3. Turn the adjusting screw out three full turns.
4. Replace and tighten lock nut.
Filter Lid
Use Filter
PN 24587
Lock Nut
Adjusting Screw
NOTICE

American Eagle®SRS-40 Owner’s Manual | Page 11
Span
Force Applied
Belt Deflection
Belt Tension
New Belt
Installation Tension: 98.0 lbf
Tensioning Force: 6.8 lbf
Belt Deection: 9/64 in
Span Length: 9.00 in
Used Belt
Installation Tension: 65.4 lbf
Tensioning Force: 4.8 lbf
Belt Deection: 9/64 in
Span Length: 9.00 in

Page 12 | American Eagle®SRS-40 Owner’s Manual
Hydraulic Oil Cooler/Compressor Oil Cooler
For reliable operation and longevity of both compressor and hydraulic system, the
cooler should be kept clean. The compressor system is protected from operation at high
temperature by a switch gauge. If the compressor shuts down or is operating close to the
shut down temperature, the cooler should be cleaned. The cooler can be cleaned with
compressed air, pressure washer or steam cleaner.
Maintenance Procedure
1. Turn off the compressor, hydraulic
system and truck engine to ensure that
compressor is not started.
2. Discharge the receiver.
3. Remove the shroud.
4. Drain oil from the compressor.
5. Disconnect:
a. Lines to the cooler.
b. Lines to the thermo valve.
c. Electrical connection to the fan.
6. Remove the cooler.
7. Remove the fan shroud and fan from
the cooler.
8. Cap the hydraulic ttings on the cooler
and thermo valve.
9. Clean cooler.
10. Reinstall the cooler in reverse order.
11. Rell with oil.
12. Test run compressor and check
operating temperature.
13. Check oil level and ll if necessary.
Oil Cooler

American Eagle®SRS-40 Owner’s Manual | Page 13
Component Installation
Chapter 3 - Installation
This section pertains to the installation of the air compressor, PTO, pump and other related
items. The instructions are intended as a guide to assist you with particular installation.
These instructions will provide only general information.
Pump Assembly:
The pump assembly may either be installed directly on the PTO or as an optional
method, may be driven by a driveline from the PTO. Pump manufacturers provide specic
installation information for their products and should be consulted if questions arise.
Note: A dual or tandem hydraulic pump is recommended when additional hydraulically
operated equipment are added to the hydraulic system.
PTO Assembly:
Check with the PTO manufacturer’s representative for specic instructions regarding your
particular make, model, and year of vehicle. As some trucks may require modication of
the transmission cross member and the exhaust system, the manufacturer’s instructions
should be followed to ensure proper installation of the PTO.
Compressor Assembly:
Prepare the mounting location of the compressor by locating and drilling four (4) holes,
1/2” diameter as per the mounting pattern of the air compressor base. Using four (4) 3/8” x
1.25 GR-5 cap screws, 3/8” at washer, and 3/8” nyloc nut, secure the compressor in place.
The compressor is air cooled, and must have a clean supply of cooling air to the fan with
minimum restrictions. Adequate space must be provided for proper circulation of air.
Electric Speed Control:
An optional electric or electronic speed control must be used to maintain proper
operating speed of the air compressor. The engine speed control will automatically
increase from idle to preset speed when engaged and decrease when disengaged.

Page 14 | American Eagle®SRS-40 Owner’s Manual
Electrical Connections:
From the air pressure switch there are two (2) wires, red and black, running to the outside
of the compressor housing. Connect the black wire to the vehicle frame or other suitable
ground. Mount a single throw toggle switch in a convenient location and connect the red
wire from the compressor to this switch. Connect the other switch terminal to a fuse holder
and then to a 12- volt power supply. A third wire is required from the air compressor switch
when connecting the speed control into the system.
SRS-40 Hydraulic Schematic
BLACK WIRE
RED WIRE
(NOT USED) (NOT USED)
RED WIRE
PN 61236
SOLENOID
VALVE AIR INLET
(Model E Compressor Only)
PRESSURE
GAUGE
BOSCH
RELAY
B
BOSCH
RELAY
A
Note:
Bosch Relay A provides power to the fan.
Bosch Relay B shuts down the compressor when
the pressure or compressor oil temperature
becomes too high.
TEMPERATURE
GAUGE
MOTOR MOTOR
LINE LINE
GROUND
87
86 85
87A
30