Graco Husky 3300 Repair Parts page 18

Repair
All Other Standard Diaphragms - Metal Pumps:
1. Install the washer (18) and o-ring (17) on the shaft
bolt (16).
2. Assemble the fluid side plate (15), the diaphragm
(20), the air side diaphragm plate (14), and the
washer (18) on the bolt exactly as shown in F
3. Apply medium-strength (blue) Loctite or equivalent
to the bolt (16) threads. Screw the bolt into the shaft
hand tight.
4. Grease the shaft u-cups (101*) and the length and
ends of the diaphragm shaft (108*). Slide the shaft
into the housing.
5. Repeat Steps 1-5 for the other diaphragm assem-
bly.
6. Hold one shaft bolt with a wrench and torque the
other bolt to 110-120 ft-lb (149-163 N•m) at 100 rpm
maximum. Do not over-torque.
7. Reattach one fluid cover (2). Arrow (A) must point
toward the air valve. See Torque Instructions,
page 20.
8. TP, SN, and GE Models: Follow directions under
Attach Second Fluid Cover, page 19.
CR, BN, and FK Models: Reattach the second fluid
cover (2). Arrow (A) must point toward the air valve.
See Torque Instructions, page 20.
9. Reassemble the ball check valves and manifolds as
explained on page 12.
18
All Other Standard Diaphragms - Plastic Pumps:
1. Assemble the diaphragm (20), the air side dia-
phragm plate (14), and the washer (18) on the fluid
side plate (15) exactly as shown in F
2. Apply medium-strength (blue) Loctite or equivalent
. 6.
IG
to the threads of the screw on the fluid side plate.
Screw the assembly into the shaft hand-tight.
3. Grease the shaft u-cups (101*) and the length and
ends of the diaphragm shaft (108*). Slide the shaft
into the housing.
4. Repeat for the other diaphragm assembly.
5. Hold one of the plates with a wrench, and torque the
other plate to 110-120 ft-lb (149-163 N•m) at 100
rpm maximum. Do not over-torque.
6. Reattach one fluid cover (2). Arrow (A) must point
toward the air valve. See Torque Instructions,
page 20.
7. TP, SN, and GE Models: Follow directions under
Attach Second Fluid Cover, page 19.
CR, BN, and FK Models: Reattach the second fluid
cover (2). Arrow (A) must point toward the air valve.
See Torque Instructions, page 20.
8. Reassemble the ball check valves and manifolds as
explained on page 12.
. 6.
IG
3A0411A