Section 5
55
600H, 750, 750H, 750HH, 825, 900, 900H USER MANUAL
MAINTENANCE
5.1 GENERAL
A good maintenance program is the key to long
compressor life. Below is a program that when
adhered to, should keep the compressor in top
operating condition. For engine maintenance
requirements, refer to the Engine Operator’s Manual
for a detailed description of service instructions.
Refer to Description Of Components on page 22 for
a detailed description of specific compressor system
components. Prior to performing maintenance, read
the CIMA Safety Manual, if applicable.
5.2 DAILY OPERATION
Prior to starting the compressor, it is necessary to
perform a daily inspection. Perform the following
maintenance operations to prevent unnecessary
problems.
1. Check the fluid level in the compressor
receiver tank. Should the level be low, simply
add the necessary amount. If the addition of
fluid becomes too frequent, a simple problem
has developed which is causing this exces-
sive loss. Refer to Troubleshooting Guide on
page 64 under Excessive Compressor Fluid
Consumption for a probable cause and rem-
edy.
2. Drain water from the fuel/water separator.
3. Check the fuel level in the fuel tank.
4. Check the engine oil level.
5. Check the engine coolant level.
After a routine start has been made, it is necessary to
perform an inspection to ensure all operations are
performing correctly. Perform the following
inspections to prevent unnecessary problems.
1. Observe the instrument panel gauges and
be sure they monitor the correct readings for
their particular phase of operation.
2. After the compressor has warmed up, it is
recommended that a general check on the
overall compressor and instrument panel be
made to assure that the compressor is run-
ning properly.
3. Check the air filter restriction gauges. Should
they indicate restriction, replace the ele-
ments immediately. Refer to Air Filter Mainte-
nance on page 59.
5.3 ENGINE COOLANT
This machine is factory filled with Mobil Delvac
Extended Life Coolant. It is an ethylene glycol based,
OAT inhibited coolant. This coolant is able to protect
the cooling system from freezing, extend the boiling
point, provide corrosion protection for all metals
within the cooling system; especially for systems with
aluminum radiators, provide liner cavitation
protection for heavy duty diesel engines, and be safe
to use with all seals/gasket materials.
This coolant should never be mixed with a different
coolant type, color, or brand. If radiator coolant is to
be added, for any reason, be sure that the coolant
added is the same as what is in the cooling system,
as well as what is recommended.
The Engine Coolant type should follow these
recommended specifications:
• Organic acid technology (OAT)
• Premixed coolant pH range of 8.0 to 9.5.
• Contains no
silicates, phosphates, borates,
nitrates and amines
• Solution states that it is formulated for use
in heavy duty diesel applications
CAUTION
DO NOT remove caps, plugs and/or other
components when compressor is running or
pressurized. Stop compressor and relieve all
internal pressure before doing so.
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