Graco 25C528 Instructions - Parts Manual page 13

Retrofit Retrofit Retrofit Kit Kit 25T862 Kit 25T862 25T862
Retrofit Kit 25T862 is a drop-in replacement that
provides a 6:1 gear reduction for the gearbox and
air motor. Use Kit 25T862 on back-geared agitator
models that have a 24:1 gear reduction, in operation
with high-viscosity materials. These models are
231413, 231414, 238157, 240209, 24C522, and
24C293.
Use the installation procedure that matches your
configuration:
• Installation in 26B618 or 26B619, page 13
• Installation in 26B630 or 26B631, page 13
• Installation in 26B632 or 26B633, page 14
Note
Use Retrofit Kit 25T862 only with the 25C765
radial piston air motor included in the kit.
The user risks damage to the rotary vane air
motor (part number 101140) if used with the
6:1 gearbox in this kit.
To reduce the risk of fire and explosion, when
using a modified drum, check that there is no
interference between the base of the drum and the
shaft of the agitator to avoid sparks from contact.
NOTICE
NOTICE NOTICE
Keep the agitator tightly mounted to the drum bung
to prevent damage to the threads from vibration.
Installation Installation Installation in in in 26B618 26B618 or or or 26B619 26B618
For In-Drum Heavy Duty Back Geared Agitator
For parts information, see
Models 26B618, 26B619, page
1. Relieve the pressure to the existing agitator.
Follow the Pressure Relief Procedure, page
2. Unscrew the gearbox unit from the center bung
fitting of the 55-gallon drum.
3. Disengage and remove the unit from the built-in
shaft in the 55-gallon drum.
4. Unscrew the three bolts (28) in the gearbox.
3A4792G
26B619 26B619
35.
19.
5. Remove the threaded bung housing adapter (34)
from the gearbox.
6. Remove the adapter (20) by unscrewing it from
the gearbox output shaft (6).
7. Replace the gearbox and the air motor unit
with Retrofit Kit 25T862. Reinstall the agitator
assembly by repeating installation steps 2–6 in
Installation for In-drum Heavy Duty Back Geared
Agitator, page 11.
Installation in in in 26B630 26B630 or or or 26B631
Installation Installation 26B630
For Heavy Duty Back Geared Agitator without an
Elevator
For parts information, see
Models 26B630, 26B631, 238250, page
1. Relieve the pressure to the existing agitator.
Follow the Pressure Relief Procedure, page
2. Remove and position the drum cover
and agitator by following the instructions in
Assembling and Positioning the Agitator, page
see Without Without an Without an Elevator an Elevator. Elevator
3. Carefully separate the gearbox output shaft (6a)
from the agitator shaft (6b) using the wrench flats
on both shaft sections.
4. Remove the agitator assembly from the drum
cover by loosening the screws (25) that attach
the gearbox to the drum cover.
5. Replace the gearbox and the air motor unit with
Retrofit Kit 25T862.
6. 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).
7. Reconnect the agitator shaft (6b) into the gearbox
output shaft (6a). Tighten down using wrench
flats.
8. Replace and position the drum cover and agitator
back onto the drum of material.
Installation
26B631
26B631
33.
19.
10,
13