Graco QUANTM QTC Series Instructions Manual page 38

Repair
Reassemble the Standard Diaphragms
NOTICE
After reassembly, allow the thread locker to cure for
12 hours, or per instructions of the manufacturer,
prior to operating the equipment. The equipment will
be damaged if the diaphragm shaft fastener loosens.
1. Assemble the diaphragm backers (14, if applicable),
diaphragms (13), fluid side plates (11), and seals
(16, if applicable) with the fasteners (15) exactly as
shown for your equipment model. See your related
parts manual. See Related Manuals, page 2.
NOTE: Face the rounded side of the fluid side plate
(11) toward the diaphragm (13).
NOTE: Apply thread locker to the fastener (15) for
all diaphragm assemblies.
Apply a high-strength thread locker to attach the
1 fastener to the diaphragm plate.
Apply a medium-strength thread locker to the shaft
2
side of the fastener to attach the diaphragm to the
shaft.
Rounded side faces toward the diaphragm (13).
3
1
1a
1b
14
13
F . 17: Reassemble Standard Diaphragms (Industrial
IG
Model Shown)
38
6
3
7
15
1
16
11
3
Apply a high-strength thread locker to attach the
fastener to the diaphragm plate.
1
Apply a medium-strength thread locker to the shaft
2
side of the fastener to attach the diaphragm to the
shaft.
Rounded side faces toward the diaphragm (13).
3
1
1b
1a
14
F . 18: Reassemble Standard Diaphragms (Hygienic
IG
Model Shown)
2. Install the assembled diaphragm assemblies into
the shaft with plate (1b) and hand-tighten the
fasteners (15).
3. Use an applicable wrench to firmly hold the flat of
the shaft (1a) in place. At the same time, use an
applicable wrench to torque the fasteners (15) to
50 ft-lb (68 N•m). See F
2
6a
16
13
11
3
. 19 or F . 20.
IG IG
3
15
1
2
3A8947A