Section 5
MAINTENANCE
24
5.1 GENERAL
A good maintenance program is the key to long
compressor life. Below is a program that, when ad-
hered to, should keep thecompressor in top operat-
ingcondition. Formaintenance requirements onen-
gine, refer to the Engine Operator’s Manual forade-
tail ed desc r iption o f s er v ic e instr u c tions. S ee S ec -
tion 5.9, Parts Replacement and Adjustment Proce-
dur es f or a detail ed desc r iption of spec ific c ompr es -
sor system components. Prior to performing main-
tenance, readthe CIMA Safety Manual, ifapplicable
in your area.
WARNING
!
DO NOT remove caps, plugs and/or other compo-
nents when compressor is running or pressur-
ized.
Stop compressor and relieve all internalpressure
before doing so.
5.2 DAILY OPERATION
Prior to starting the compressor, it is necessary to
check the fluid level inthesump. Should the level be
low, simply add the necessary amount. If the addi-
tionoffluidbecomes too frequent, asimple problem
has developed which iscausing this excessive loss.
S ee the Tr oubl eshooting S ec tion (5 . 1 0 ) under Ex -
cessive Fluid Consumption for a probable cause
and remedy. Also check the engine oil level and the
radiator coolant level prior to starting.
NOTE
The radiator and engine cooling system must be
drained and flushed every two (2) years. Replace
the coolant with a solution of 50% ethylene glycol
and 50% water or as required for your geographic
location. DO NOT use a leak sealing type of anti---
freeze. John Deere and Caterpillar engines must
haveSupplemental Coolant Additive(SCA) added
to theengine coolant system. Referto yourEngine
Operator’s Manual for details and specific engine
requirements.
After a routine start has been made, observe the in-
strument panel gauge and be sure it monitors the
correct reading for that particular phase of opera-
tion. After the compressor has warmed up, it is rec-
ommended that ageneral checkonthe overall com-
pressor and instrument panel be made to assure
that the compressor is running properly.Also check
the air filter maintenance indicators if supplied.
5.3 MAINTENANCE AFTER INITIAL 50 HOURS
OF OPERATION
After the initial 50 hours of operation, a few mainte-
nance requirements areneeded to rid the system of
any foreign materials. P erform the following mainte-
nance operations to prevent unnecessary prob-
lems.
1. Clean the return line orifice and strainer.
2. Change compressor fluid filter.
3. Check Engine Operator’s Manual for required
service.
5.4 MAINTENANCE EVERY 100 HOURS
After 100 hours of operation, it will be necessary to
perform the following:
1. Clean the radiator and cooler exteriors.
2. Check Engine Operator’s Manual for required
service.
5.5 MAINTENANCE EVERY 200 HOURS
Pe rformthe following after every 200hoursofopera-
tion:
1. Change the fuel filter. Should persistent clogging
beevident, change the fuel filter more frequently.
2. Check fan belt tension.
3. Clean the radiator and coolerexterior.Depending
on how contaminated the atmosphere may be,
more frequent cooler and radiator cleaning may
be necessary.
4. Check Engine Operator’s Manual for required
service.
5.6 MAINTENANCE EVERY 300 HOURS
NOTE
Fluid change period will vary according to fluid
brand. Refer to Lubrication Guide in Section 3.
Pe rformthe following after every 300hoursofopera-
tion:
1. Change the compressor fluid and fluid filter. Run
the compressor for 5 to 10 minutes to warm the
fluid. Shut the compressor off and relieve all in-
ternal pressure before proceeding. Drain the
fluid sump by removing the plug at the bottom of
the sump tank. For fluid filter element replace-
ment, see Filter Element Replacement under the
Maintenance Section 5.9 Parts Replacement
and Adjustment Procedures. Fill the sump with
fluidaccording tospecifications inSection3.Re-
move any accumulated dirt from the fluid filler
cap prior to filling the sump.
2. Clean return line strainer.
3. Check Engine Operator’s Manual for required
service.
5.7 MAINTENANCE EVERY 400 HOURS
Pe rformthe following after every 400hoursofopera-
tion:
1. Check the engine RPM. Idle speeds should never
be al l owed to f al l bel ow the minimums ( see S ec -
tion 3 Specifications).
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