Maintenance; Flush The Air Motor; Lubricate The Air Motor; Agitator Blades - Graco 222695 Instructions - Parts Manual

Maintenance

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.
Hazardous fluids or toxic fumes can cause serious
injury or death if splashed in the eyes or on the skin,
swallowed, or inhaled. When flushing the air motor:
• Perform the procedure in a well ventilated area.
• Keep your face away from the exhaust port.
• Wear the appropriate protective clothing, gloves,
eyewear, and respirator.
If the air motor is sluggish or inefficient, follow this
procedure.
The recommended solvent for air motors and lubricated
®
pumps is Gast Flushing Solvent (Gast part number
AH255 or AH255A) or Inhibisol
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 apply 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.
306565K
®
Safety Solvent.

Lubricate the Air Motor

NOTICE
Not lubricating the air motor will cause air motor fail-
ure.
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. Oil must have an
auto-ignition rating of 275°F (135°C) or greater. Run the
agitator for about 30 seconds.

Agitator Blades

Materials can become electrostatically charged when
stirred or blended. To prevent fire and explosion,
ground equipment and do not allow material to build
up on agitator. Dried material could allow static build
up and interfere with grounding.
Regularly check the agitator for dried material buildup.
Clean using a rag soaked in solvent that is compatible
with the spray material and the surfaces being cleaned.
Additionally, extra precautions need to be taken if using
lower conductive materials (<1000 pS/m) such as:
• Avoid stirring/mixing at high speeds.
• Avoid insoluble mixtures.
• When possible, increase the material conductivity
with additives.
• Use liquids with a high conductivity (>1000 pS/m)

Clean the Shaft

Each week, clean any dried fluid from around the
coupling (9) and housing (7) area of the shaft (13 or 14).
Maintenance
9