BENDIX 360CC, Manual

6

LEAKAGE TESTS

See the standard Air Brake System and Accessory Leakage 
test on Page A-15 (Test 2).

Note:

  Leakage in the air supply system (components 

before the supply reservoir - such as the governor, air dryer, 
reservoir drain cocks, safety valve, and check valves) will 
not be registered on the vehicle dash gauges and must 
be tested separately.  Refer to the various maintenance 
manuals for individual component leakage tests and the 
Bendix “Test and Checklist” published in the Bendix

® 

Air 

Brake System Handbook (BW5057) and on the back of 
the Bendix

® 

Dual Circuit Brake System Troubleshooting 

Card (BW1396).

CYLINDER HEAD

Check the cylinder head gaskets for air leakage.

1.   With the engine running, lower air system pressure to 

60 psi and apply a soap solution around the cylinder 
head.  Check the two gaskets between the cylinder 
head and the valve plate assembly, as well as the inlet 
reed valve/gasket between the valve plate assembly 
and crankcase for air leakage.

2.   No leakage is permitted.  If leakage is detected, replace 

the compressor or repair the cylinder head using the 
maintenance kit available from an authorized Bendix 
parts outlet.

INLET & DISCHARGE VALVES

In order to test the inlet and discharge valves, it is necessary 
to have shop air pressure and an assortment of fi ttings.  A 
soap solution is also required.

1.   With the engine shut off, drain ALL air pressure from 

the vehicle.

2.   Disconnect the inlet and discharge lines.

3.   Apply 120-130 psi shop air pressure to the discharge 

port and then apply and release air pressure to the inlet 
port.  Soap the inlet port and note that leakage at the 
inlet port does not exceed 200 sccm.

If excessive leakage is noted in Test 3, replace or repair 
the compressor using genuine Bendix replacements or 
maintenance kits available from any authorized Bendix 
parts outlet.

While it is possible to test for inlet and discharge leakage, 
it may not be practical to do so.  Inlet and discharge valve 
leakage can generally be detected by longer compressor 
build-up and recovery times.  Compare current compressor 
build-up times with the last several recorded times.  Make 
certain to test for air system leakage, as described under 
“In-Service Operating Tests”, before making a determination 
that performance has been lost.

COMPRESSOR REMOVAL & DISASSEMBLY

GENERAL

The following disassembly and assembly procedure is 
presented for reference purposes and pre-supposes that 
a rebuild or repair of the compressor is being undertaken.  
Several maintenance kits are available and the instructions 
provided with these parts and kits should be followed in 
lieu of the instructions presented here.

MAINTENANCE KITS & SERVICE PARTS 

BENDIX

®

 360CC SINGLE CYLINDER 

COMPRESSOR ONLY 

Compressor Seal Kit  (Major)   .  .  .  .  .  .  .  .  . K026807

Compressor Seal Kit  (Minor)   .  .  .  .  .  .  .  .  . K051352 

Discharge Safety Valve Kit    .  .  .  .  .  .  .  .  .  . K026809

Compressor to Engine Mounting Face Sealant
 .  .  .  .  .  .  .  .  .  .  Supplied by the Engine Manufacturer

GENERAL SAFETY GUIDELINES

WARNING! PLEASE READ AND FOLLOW 
THESE INSTRUCTIONS TO AVOID PERSONAL 
INJURY OR DEATH:

When working on or around a vehicle, the following 
general precautions should be observed at all times.

1.  Park the vehicle on a level surface, apply the parking 

brakes, and always block the wheels.  Always wear 
safety glasses.  

2.  Stop the engine and remove ignition key when working 

under or around the vehicle.  When working in the engine 
compartment, the engine should be shut off and the 
ignition key should be removed. Where circumstances 
require that the engine be in operation, EXTREME 
CAUTION should be used to prevent personal injury 
resulting from contact with moving, rotating, leaking, 
heated or electrically charged components.

3.  Do not attempt to install, remove, disassemble or 

assemble a component until you have read and 
thoroughly understand the recommended procedures.  
Use only the proper tools and observe all precautions 
pertaining to use of those tools.

4.  If the work is being performed on the vehicle’s air brake 

system, or any auxiliary pressurized air systems, make 
certain to drain the air pressure from all reservoirs 
before beginning ANY work on the vehicle.  If the vehicle 
is equipped with a Bendix

®

 AD-IS

®

 air dryer system or 

a dryer reservoir module, be sure to drain the purge 
reservoir.