TMG TMG-GAC40, Product Manual

Page: 19 / 28

Detailed Instructions – Maintenance &
Repair
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Maintenance & Repair
Maintenance Schedule Summary
Item Frequency
Inspect safety/relief valves Weekly
Check pump oil level Weekly
Inspect air filter

Weekly

Replace every 12 months or 1000
hours of use
Inspect for air leaks Monthly
Engine maintenance See engine Owner’s Manual

Change oil: after first 20 hours of use

Every 100 hours of use after that
Change pump oil/ Clean magnetic drain plug 
After first 50 hours of use

Every 3 months or 500 hours of use
after that
Inspect & drain receiver tank Daily
Check drive belt tension and alignment Monthly
Inspect & clean spark arrestor (if equipped) See manufacturer’s instructions
Dust/debris removal Monthly
See detailed instructions for each maintenance item below.
If the safety/relief valve does not work properly,
over- pressurization may occur causing air tank
rupture or explosion. Occasionally pull the ring on
the safety valve to make sure the safety valve
operates freely. If the valve is stuck or does not
operate smoothly, it must be replaced with a valve
having the same pressure rating.
WARNING: Safety/Relief valve
hazards
No modifications. Never modify or alter the
compressor in any way. Modifications can
create serious safety hazards and will also void
the warranty.
Inspect Safety/Relief Valve
This valve should be inspected on a weekly
basis if used regularly or the first time it is being
used after a prolonged period of storage. The
safety valve automatically releases air if the tank
pressure exceeds the preset maximum.

Check the safety/relief valve by pulling the
rings.

Replace safety/relief valve that do not
operate freely.
Inspect Air Filter
Inspect the compressor’s air filter element on a
weekly basis if used regularly or the first time it is
being used after a prolonged period of no use. A
dirty air filter will not allow the air compressor to
operate at full capacity.

Clean air filter when necessary.

Every 12 months or 1000 hours, replace
the air filter.
Note: Keep the air filter clean. Do not
operate with the air filter removed.
Inspect Compressor for Air Leaks
I
nspect system for air leaks on a monthly
basis, or again, at the first use after a
prolonged period of storage.
NOTICE
Dispose of used motor and pump oil in a manner that
is compatible with the environment and in accordance
with local, state, and federal laws and regulations.

Take used oil in a sealed container to your local
recycling center or service station for reclamation.

Do not throw it in the trash, pour it on the ground,or
pour it down a drain.
ALWAYS shut off the engine, disconnect the spark plug wire from spark plug and release air pressure from the receiver tank
before cleaning, adjusting, or servicing the compressor. Make sure all guards and shields are replaced before re-starting.
WARNING: Maintenance hazards