Service - Graco 25C528 Instructions - Parts Manual

Service

Service
Service Service
Moving parts, such as an impeller blade, can cut
or amputate fingers. To reduce the risk of serious
injury, always shut off the agitator and disconnect
the air line before checking or repairing the agitator.
If the air motor requires more than installation of a
service kit, it is usually quickest and easiest to send
it to a Graco distributor for repair or replacement. A
motor rebuild kit (25M535) is available. See manual
3A5050 for more information.
Removing the the Air Air Motor
Removing Removing the Air
Model 25C528, 25C528, 25C529, 25C529, 25C533,
Model Model 25C528, 25C529,
25M481
25M481 25M481
1. Follow the Pressure Relief Procedure, page
2. Remove the air regulator by unscrewing the
swivel fitting (12).
a. See Model 25C528, page 16
b. See Model 25C529, page 19
c. See Model 25C533, page 17
d. See Model 25M481, page 18
3. Loosen the upper clamp (2) and raise the motor
so the upper two set screws (3) are accessible.
Use a 1/8 inch hex to remove the set screws
from the shaft.
4. Lift the air motor straight up off the shaft.
Model 25C534 25C534 and and 25C535
Model Model 25C534 and
1. Follow the Pressure Relief Procedure, page
14
Motor
Motor
25C533, and and
25C533, and
25C535
25C535
2. Remove the air regulator by
unscrewing the swivel fitting (11). See
Models 25C534 and 25C535, page
3. Remove the screws (14) holding the motor
mounting plate (13) to the outlet housing (3).
4. Remove the socket head screws (2) holding the
motor (1) to the mounting plate.
5. Raise the motor so the two set screws (9) in the
shaft (4) are accessible. Use a 1/8 inch hex to
remove the set screws from the shaft.
6. Lift the air motor straight up off the shaft.
Model 25C530
Model Model
1. Follow the
2. Remove the air regulator by unscrewing the
swivel fitting (9). See
3. Using a 3/16 inch hex, remove the three set
screws (8) on the bung adapter (4).
12.
4. Raise the motor so the top two set screws (7) in
the coupler (3) are accessible. Use a 1/8 inch
hex to remove the top two set screws.
5. Lift the air motor (1) straight up off the coupler.
Model 25N881
Model Model
1. Follow the
2. Remove the air regulator by
unscrewing the swivel fitting (5). See
Models 25N881 and 25N882, page
3. Remove the screws (11) holding the bung
adapter (6) to the motor plate (7).
4. Lift the motor off the bung adapter (6) and
remove the screws (8) that attach the motor plate
12. (7) to the motor (1).
25C530
25C530
Pressure Relief Procedure, page
Model 25C530, page
25N881 and and 25N882 25N882
25N881 and 25N882
Pressure Relief Procedure, page
20.
12.
21.
12.
22.
3A4792C