Graco 25C528 Instructions - Parts Manual page 14

Installation
Installation Installation in in in 26B632 Installation 26B632 or or or 26B633 26B632
For Heavy Duty Back Geared Agitator with an
Elevator
For parts information, see
Models 26B632, 26B633, page
1. Relieve the pressure to the existing agitator.
Follow the Pressure Relief Procedure, page
2. Raise the drum elevator (102) to remove the
agitator assembly from the drum of material.
3. Remove the drum and place it out of the way. Do
not go under the elevator when it is raised.
4. Lower the elevator to the down position. The
elevator must be in the down position to perform
any work on the elevator, agitator, or drum cover
assembly.
5. Carefully separate the gearbox output shaft (6a)
from the agitator shaft (6b) using the wrench flats
on both shaft sections.
6. Remove the agitator assembly from the drum
cover by loosening the screws (25) that attach
the gearbox to the drum cover.
7. Replace the gearbox and the air motor unit with
Retrofit Kit 25T862.
8. Reinstall the agitator assembly with the motor to
the left and align the gearbox threads with the
mounting holes in the drum cover. Thread the
three hex head screws (25) up through the drum
cover and into the agitator. Torque the screws to
75 in-lb (8.4 N•m).
9. Reconnect the agitator shaft (6b) into the gearbox
output shaft (6a). Tighten down using wrench
flats.
10. Raise the drum elevator (102) to the up position.
Do not go under the elevator when it is raised.
11. Place the drum back in the original position
underneath the agitator.
12. Slowly lower the elevator to the down position
while carefully guiding the agitator back into the
drum. Make sure that there is nothing in between
the drum cover and the drum as the elevator
lowers, including fingers and hands.
14
26B633 26B633
37.
19.
Models 25N881 Models Models 25N881 25N881 and and and 25N882
For parts information, see
Models 25N881, 25N882, page
1. Determine the agitator shaft size: 7/16" (11.1
mm) or 1/2" (12.4 mm) square. Determine the
size of the shaft adapter (9). Select the size by
placing the adapters onto the built-in agitator
shaft inside the drum. Use the smallest adapter
that will fit. There should only be a small amount
of slip between the adapter nut and the shaft.
2. Attach the shaft adapter (9) to the flat side of
the motor shaft close to the bottom of the motor.
Tighten the set screw (12) securely to 8–9 ft-lbs
(11–12 N•m).
Note
There is approximately 1/2" (12 mm) of
adjustment travel of the adapter shaft
on the motor shaft if needed for later
adjustment.
3. Torque the socket head screw (8) to 12.5–14
ft-lbs (17–19 N•m).
4. Place the threaded housing adapter (6) onto the
motor plate (7) and secure with washers (13) and
screws (11). Torque to 8–9 ft-lbs (11–12 N•m).
5. Align the adapter nut to engage the built-in shaft
in the 55-gallon drum.
6. Slowly screw the unit onto the threads on the
center bung fitting of the 55-gallon drum. Secure
tightly so the motor does not rotate in the bung.
Motor Replacement Motor Motor Replacement Kit Replacement
Motor Replacement Kit 25C765 is a drop-in
replacement for rotary vane air motor (part number
101140) used on existing agitator part numbers
206758, 207953, 222698, 206760, 203711, 204995,
206219. See Model 25C528, page
lists the items included with the kit. Use the agitator
manual motor replacement procedure or parts page
diagram to install the new motor.
NOTICE
NOTICE NOTICE
Do not immerse or splash the bottom of the motor
in fluids. The bearing at the bottom of the motor
and the shaft may corrode.
25N882 25N882
31.
Kit 25C765 Kit 25C765 25C765
25. Ref No. 1
3A4792G