25C535 Only; Model 25C530 Only - Graco 25C528 Instructions - Parts Manual

Service
Models Models 26B618, Models 26B618, 26B618, 26B619, 26B619, 26B619, 26B630,
26B632, 26B632, 26B632, 26B633 26B633 26B633
1. Follow the Pressure Relief Procedure, page
2. Remove the radial piston air motor by unscrewing
the set screws (18) that hold the air motor to the
gearbox.
3. Lift the air motor and pinion gear (attached to
motor output shaft).
4. Remove the pinion gear by unscrewing the set
screw (18) to release from the output shaft of the
air motor.
5. Remove the air regulator by unscrewing the
swivel fitting (12).
Aligning the the Outlet Outlet Housing
Aligning Aligning the Outlet
25C534, 25C534, 25C534, 25C535

25C535 Only

25C535
NOTICE
NOTICE NOTICE
Improper installation of the outlet housing could
cause the agitator shaft to bind against the outlet
housing bearing and damage it.
After repairing or replacing the outlet housing or air
motor, perform the following steps:
1. Follow the Pressure Relief Procedure, page
2. Place the agitator in a vertical position and
loosen the three outlet housing screws (14). See
Models 25C534, 25C535, page
3. Apply 25 psi (1.7 bar) minimum air pressure to
the air regulator (12). Adjust the air regulator so
the agitator shaft is barely turning.
4. While the agitator shaft is turning, torque the
three outlet housing screws to 80 to 100 in-lbs (9
to 11.3 N•m).
5. If the agitator shaft binds, repeat steps 1 to 3
above.
24
26B630, 26B631, 26B630, 26B631, 26B631,
Housing — — —
Housing
Only Only
29.
Inspecting the
Inspecting Inspecting
Blades — — — Model
Blades Blades
19.
1. Follow the
2. Turn off/disconnect power to the agitator.
3. Remove the agitator.
4. Clean with a compatible solvent and inspect the
shaft (2) and blades (5, 6) for wear or damage.
See Model 25C530, page
5. If no wear or damage is detected, reinstall the
agitator into drum.
6. If the shaft needs replacing:
a. Remove the air motor following the steps in
Removing the Air Motor, page
b. Raise the bung adapter (4) to expose the
bottom two setscrews (7) in the coupler (3).
Use the 1/8 inch hex to remove them.
c. Slide the shaft (2) out of the coupler.
d. Slide the new shaft into the coupler. Use
a 1/8 inch hex to tighten the two lower
setscrews in the coupler. Torque to 65 in-lb
(7.3 N•m).
e. Lower the bung adapter on the shaft or raise
the shaft through the bung adapter and insert
the air motor into the coupler. Use the 1/8
19. inch hex to tighten the two upper set screws
(SS) in the coupler. Torque to 65 in-lb (7.3
N•m). See
f. Raise the bung adapter and use a 3/16 inch
hex to tighten the three setscrews (8) into the
bung adapter. Torque to 80 in-lb (9 N•m).
g. Reinstall agitator into the drum.
7. If the blade needs replacing:
a. Use a 3 mm (1/8 inch) hex to remove the
setscrew in the long (6) or short (5) blade
hub and slide the hub/blade assembly off the
shaft.
b. To install a new hub/blade assembly, slide it
onto the shaft and tighten the set screw. The
setscrew must always remain on the top,
with the blades hanging down, so the blades
pass into and out of the bung hole.
c. Reinstall the agitator into the drum.
the Shaft Shaft and and Agitator Agitator
the Shaft and Agitator
Model 25C530 25C530 Only Only
Model 25C530 Only
Pressure Relief Procedure, page
30.
Model 25C530, page
19.
23.
30.
3A4792G