Service
308175T
9
Service
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.
•
If the vanes need replacing or foreign material is
present in the motor chamber, an experienced
mechanic may remove the end plate opposite the
drive shaft end.
•
New vanes should have the edges with cut corners
(or the notched edges, if the vanes are reversible)
pointing toward the bottom of the vane slot.
NOTE:
An Air Motor Repair Kit is available. Order part
number 224954.
Align the Outlet Housing
Follow these steps after performing any of the following:
•
Replacing the outlet housing (4).
•
Replacing the air motor (1).
•
Repairing the agitator.
1. Place the agitator in a vertical position and loosen
the three outlet housing screws (17). See
2. Apply 25 psi (1.7 bar) minimum air pressure to the
air motor. Adjust the needle valve so the agitator is
barely turning.
3. While the agitator shaft is turning, torque the three
outlet housing screws to 80 to 100 in-lbs (9 to
11.3 N•m).
4. If the agitator shaft still binds, repeat steps 1 to 3
above.
NOTICE
Do not pry with a screwdriver. It will dent the surface
of the plate and body, causing leaks. Use a puller
tool, which will remove the end plate while
maintaining the position of the shaft.
NOTICE
Improper installation of the outlet housing could
cause the agitator shaft to bind against the outlet
housing bearing and damage it.
