Graco QUANTM QTC Series Instructions Manual page 41

Reassemble the Overmolded 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. Install the diaphragm assemblies (13, 15) into the
shaft (1a) and firmly tighten.
NOTE: Apply thread locker to the fastener (15) for
all diaphragm assemblies.
Apply a medium-strength thread locker to the shaft
1 side of the fastener to attach the diaphragm to
shaft.
1
1a
15
1
1b
F . 23: Reassemble Overmolded Diaphragms (Industrial
IG
Model Shown)
3A8947A
13
3
6
7
Apply a medium-strength thread locker to the shaft
1 side of the fastener to attach the diaphragm to the
shaft.
1
15
1a
1b 1
F . 24: Reassemble Overmolded Diaphragms (Hygienic
IG
Model Shown)
2. Use an applicable wrench to hold flat of the shaft
(1a) firmly in place. At the same time, grip the
diaphragm (13) securely around the outer edge and
rotate clockwise to firmly tighten.
For QTC models: Torque to 110 in-lb (12 N•m).
5
For QTD,E models: Torque to 190–220 in-lb
(21–25 N•m).
13
F . 25: Tighten Overmolded Diaphragms (Industrial
IG
Model Shown)
Repair
13
6a
3
1
3
6
7
5
5
41