Repair; Pump Repair - Graco G-Chem Series Instructions And Parts

Repair

Pump Repair

1. Remove power to the pumpjack and wait for the
pumpjack to stop moving.
2. Follow the Pressure Relief Procedure.
3. Disconnect lever arm (122) from the pumpjack.
4. Expose the drive shaft by loosening the fasteners
(128) and removing the guard (127). The fasteners
are captive and will remain with the guard.
127
F . 9 Expose the drive shaft
IG
5. Remove the screws (3) and slide the fluid cylinder
away from the drive housing (101).
NOTE: The plunger (209) will stay within the drive
housing (101) unless the dowel pin (120) is
removed. The dowel pin is held in place by a split
ring that can be push aside to free the pin. It is not
necessary to remove the plunger (209) unless it is
damaged and needs to be replaced.
3A6349A
201
F . 10 Disconnect the fluid cylinder
IG
6. Remove packing nut (207) from fluid cylinder (201).
128
210
206
204
205
204
205
203
202
201
F . 11 G-Chem Pump Repair
IG
209
101
3
120
Repair
Packing
Stack
19