Service; Flushing The Agitator Air Motor; Lubricating The Agitator Air Motor - Graco Xtreme-Duty 25A598 Operation And Parts

Service

Service
Service Service
Flushing Flushing Flushing the the Agitator the Agitator Air Agitator
Hazardous fluids or toxic fumes can cause
serious injury if splashed in the eyes or on the
skin, swallowed, or inhaled. When flushing
the air motor, keep your face away from
the exhaust port, and wear the appropriate
protective clothing, gloves, eyewear, and
respirator.
Do not use kerosene or other flammable
solvents to flush the air motor. Flushing
with flammable solvents could cause fire
or explosion and result in serious injury or
property damage.
If the air motor is sluggish or inefficient, follow
this procedure in a well ventilated area.
1. Disconnect the air line and muffler (08) from
the motor (W).
2. Add several teaspoons of non-flammable
solvent, or spray the solvent directly into the
motor air tube connector (R).
NOTE: The recommended solvent for air
NOTE: NOTE:
motors and lubricated pumps is Gast®
Flushing Solvent (Part AH255 or AH255A) or
Penetone Inhibisol® Safety Solvent.
3. Reconnect the air line, and slowly increase
the air pressure until there is no trace of
solvent in the exhaust air.
4. Reconnect the muffler (08).
5. Re-lubricate the motor with a squirt of
lightweight oil into the motor air tube
connector (R).
16
Air Motor Air Motor Motor
Lubricating the the Agitator
Lubricating Lubricating the
NOTICE
NOTICE NOTICE
Not lubricating the air motor will cause air
motor failure.
• Install air line lubricator and air line filter.
• If an air line lubricator is not installed, the
air motor must be manually lubricated every
eight hours. Place 10–20 drops of SAE #10
light oil in the motor air inlet. Run the
agitator for about 30 seconds.
• Avoid end thrust including hammering of
shaft.
Lubricating Lubricating the Lubricating the Gear the Gear Reducer Gear
Gear Reducer:
After the first 100 hours or two
weeks of operation, remove the oil plug (T)
and the oil level plug (S), drain the oil, and
thoroughly flush the housing with light flushing
oil.
Refill with Graco oil (part 202659) to the proper
level.
Afterward, change the oil every six months or
2500 hours of operation (whichever occurs
first) under normal operating conditions.
More frequent oil changes are needed under
severe operating conditions or in atmospheres
containing excessive moisture or abrasives.
Contact your Graco distributor.
Inspecting the Inspecting Inspecting the the Bearing Bearing Block Bearing
Every six months or 2500 hours of operation
(whichever comes first), inspect the bearing
block (BR). This can be performed before or
after gear reducer oil changes.
With the agitator running slowly, place a hand
on the side of the bearing block (BR). There
should be no excessive vibration or grinding.
Do not attempt to repair the bearing block or
gear reducer. Contact your Graco Distributor.
Agitator Air Air Motor Motor
Agitator Air Motor
Reducer Reducer
Block Block
3A4032D