Table of Contents
Advertisement
Service
To reduce the risk of serious bodily injury, including
cuts, amputation of fingers, and splashing in the eyes
or on the skin, always follow the Pressure Relief
Procedure (page 6), shut off the agitator, and
disconnect the air line before checking or repairing
the agitator.
If the unit requires more than installation of a service kit,
it is usually quickest and easiest to send the unit to the
Graco distributor for repair or replacement.
Lubricate the Heavy-Duty
Agitator
NOTICE
To prevent air motor failure and possible damage to
the agitator assembly, always keep the air motor
properly lubricated.
Lubricate the Air Motor
Install an air line lubricator for automatic air motor
lubrication. Set the lubricator feed rate at 1 drop of oil
per minute for high speed or continuous duty usage. Do
not overfeed oil or exhaust air may become
contaminated. To order a 3/8 in. npt air line lubricator,
order Part Number 214847.
If an air line lubricator is not installed, the air motor must
be manually lubricated every 8 hours. Lubricate the
agitator air motor by placing 10–20 drops of SAE #10
light oil in the motor's air inlet. Run the agitator for about
30 seconds.
Lubricate the Gear Reducer
Refer to F
. 5, page 12. Remove the oil plug (T) and the
IG
oil level plug (L), drain the oil, and thoroughly flush the
housing with light flushing oil. Refill with Graco oil (part
number 217374) to the proper level.
Afterward, change the oil every six months or 2500
hours of operation (whichever occurs first) under normal
308371R
operating conditions. More frequent oil changes are
needed under severe operating conditions or in
atmospheres containing excessive moisture or
abrasives. Contact your Graco distributor.
NOTE: No oil maintenance is required on models
factory filled with Mobil Glygoyle 460 oil.
Flush the Air Motor
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.
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 motor is sluggish or inefficient, flush it with
non-flammable solvent in a well ventilated area.
The recommended solvent for air motors and lubricated
pumps is Gast Flushing Solvent (Part Number AH255 or
AH255A) or Inhibisol Safety Solvent.
1. Disconnect the air line and muffler
2. Add several teaspoons of solvent or spray the
solvent directly into the motor.
3. Rotate the shaft by hand in both directions for a few
minutes.
4. Reconnect the air line, and slowly increase the air
pressure until there is no trace of solvent in the
exhaust air.
5. Re-lubricate the motor with a squirt of light-weight
oil in the chamber.
Service
11
Advertisement
Table of Contents
