600H, 750, 750H, 750HH, 825, 900, 900H USER MANUAL SECTION 5
56
• Protects all standard metals within the cool-
ing system (i.e. brass, copper, steel, solder,
cast iron, and aluminum.)
• Meets specification requirements
of current
industry standards which include: ASTM D
3306.
• Meets or exceeds performance require-
ments of current industry standards which
include: ASTM D 6210.
If you are not sure of the coolant that is installed
originally or want to change to a different type, the
cooling system must be cleaned with a commercial
cleaning agent and then completely flushed and filled
with water (preferably distilled) several times to
remove all traces of cleaner and old coolant. Finally,
fill the system with the recommended coolant using
only one brand/type. Cross contamination, which is
caused by adding different types of engine coolants,
may result in the depletion or dropout of coolant
additives; thus leaving cooling system surfaces
unprotected against corrosion.
Corrosion to radiator surfaces may reduce cooling
efficiency and radiator life expectancy. It is extremely
important to evacuate/purge all air within the cooling
system before replacing the radiator cap.
Engine coolant must not only maintain proper freeze
protection levels but also maintain proper corrosion
inhibitor levels. Please contact the coolant
manufacture for specifics on testing methods and
suggested coolant maintenance intervals.
*(Using manufactures extender additive to system at
3 years or 6000 hours)
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 orifice and strainer.
2. Change compressor fluid filter
3. Check Engine Operator’s Manual for
required service.
5.5 5.5 MAINTENANCE EVERY
100 HOURS
After 100 hours of operation, it will be necessary to
perform the following: Check Engine Operator’s
Manual for required service.
5.6 5.6 MAINTENANCE EVERY
250 HOURS
Perform the following after every 250 hours of
operation:
1. Check fan 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
radiator cleaning may be necessary.
3. Check Engine Operator’s Manual for
required service
5.7 5.7 MAINTENANCE EVERY
300 HOURS
When not using Sullair AWF, change the compressor
fluid and replace the fluid filter element. Refer to
Main Fluid Filter Servicing on page 58.
5.8 MAINTENANCE EVERY 600
HOURS
When not using Sullair AWF, replace the fluid filter
element only. Refer to Main Fluid Filter Servicing on
page 58.
5.9 MAINTENANCE EVERY 1000
HOURS
Perform the following after every 1000 hours of
operation:
1. Clean the return line orifice and strainer.
2. Repack the wheel bearings on wheel-
mounted units.
Coolant Service Life
Coolant Type Service Life
Mobil Delvac EXTENDED
LIFE Coolant/Antifreeze
*Six Years/12,000 Hours
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