Sullair 900H - MAINTENANCE AFTER INITIAL 50 HOURS

600H, 700HH, 750, 750H, 750HH, 825, 900H, 1050 USER MANUAL SECTION 5
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with the recommended coolant using only one brand/
type. Cross contamination which is caused by adding
different types of engine coolants will result in the
coolant additives to deplete (dropout); thus leaving
radiator surfaces unprotected. Corrosion to radiator
surfaces will occur, thus reducing radiator life
expectancy.
5.4 MAINTENANCE AFTER
INITIAL 50 HOURS OF
OPERATION
After the initial 50 hours of operation, a few simple
maintenance routines can rid the system of any
possible foreign materials, if any. Perform the
following maintenance operations to prevent
unnecessary problems.
1. Clean the return line (scavenge line) orifice
and strainer.
2. Change compressor fluid filter.
3. Change the hydraulic system fluid filter ele-
ment.
4. Check Engine Operator’s Manual for
required service.
5.5 MAINTENANCE EVERY 100
HOURS
After 100 hours of operation, it will be necessary to
perform the following:
1. Check the battery level and fill with water if
necessary.
2. Check Engine Operator’s Manual for
required service.
5.6 MAINTENANCE EVERY 250
HOURS
Perform the following after every 250 hours of
operation:
1. Check alternator belt tension and adjust if
needed.
2. Clean the radiator and cooler exterior.
Depending on how contaminated the atmo-
sphere may be, more frequent cooler and
CAUTION
The radiator and engine cooling system must
be drained and flushed periodically. The
required change interval is determined by the
following table. Refer to the OEM Engine Man-
ual for more information. 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. Should a 100% water solution be
used, a non chromate rust inhibitor must be
added.
CAUTION
Dispose of fluids in accordance with applicable
federal, state and local regulations.
Coolant Service Life
Coolant Type Service Life
Caterpillar ELC Six Years/12,000 Hours
Caterpillar DEAC Three Years/3,000 Hours
Commercial Heavy -Duty
Coolant/Antifreeze that
meets “ASTM D5345”
Two Years/3,000 Hours
Commercial Heavy -Duty
Coolant/Antifreeze that
meets “ASTM D4985”
One Years/3,000 Hours
NOTE
Caterpillar DEAC DOES NOT require a
treatment with an SCA at the initial fill.
Commercial heavy-duty coolant/ anti-
freeze that meets “ASTM D4985” or
“ASTM D5345” specifications MAY
require a treatment with an SCA at the ini-
tial fill. Read the label or the instructions
that are provided by the OEM of the prod-
uct.t