Replace Fluid Module - Graco G-JR Instructions-Parts List Manual

Replace Fluid Module

1. Remove G-JR Pump, page 14.
2. Remove gear cover (3).
3. Remove the motor shroud by pressing the top and
bottom tabs with a flat screwdriver.
4. Remove the two T-20 hexalobular (6lobe) screws
from the back of the motor using a star screwdriver.
T-20 6lobe Screw
F . 7 Remove the motor shroud and motor
IG
5. Remove the motor.
6. Remove the four T-30 6lobe screws, using a star
screwdriver, and the mounting plate from the pump.
NOTE: The screws are torqued tightly at the factory and
may require a bend vise and a drill or impact driver to
remove.
3A8109A
3
Motor
Motor Shroud
7. Pull the gear assembly off the pump.
Plunger
F . 8 Remove the gear assembly
IG
NOTE: It is helpful to rock the gear back and forth or to
spin the gear while pulling the fluid module and gear
assembly apart.
8. Discard the fluid module and install the new fluid
module.
9. Insert the bearing tab into the pocket on the plunger
of the new fluid module, and rock the gear back and
forth or spin the gear while pushing the fluid module
and gear assembly together.
10. Continue to spin the gear until the plunger moves
fully into the pump and the drive-train mounting
plate is flush with the pump mounting plate.
11. Reinstall the mounting bracket and the four T-30
6lobe screws. Torque to 80-90 in-lbs (9-10 N•m).
NOTE: A bench vise and a drill or impact driver will be
needed for reassembly with a new fluid module.
Gear Assembly
T-30 6lobe
Screw
Mounting Plate
Bearing Tab
Repair
15