Graco 234124 Instructions-Parts List Manual page 19

Aluminum and stainless steel air-operated diaphragm pumps
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Diaphragm Repair
Tools Required
D Torque wrench
D 10 mm socket wrench
D 15 mm socket wrench (aluminum models) or
1" socket wrench (stainless steel models)
D 19 mm socket wrench
D O-ring pick
D Lithium-base grease
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 25 to order the correct kit for your pump. Parts
included in the kit are marked with an asterisk, for
example (401*). Use all the parts in the kit for the best
results.
Fig. 13
Service
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 11.
1. Relieve the pressure.
2. Remove the manifolds and disassemble the ball
check valves as explained on page 18.
3. Using a 10 mm socket wrench, remove the screws
(106) holding the fluid covers (101) to the air
covers (23). Pull the fluid covers (101) off the
pump. See Fig. 13.
1
Apply medium-strength (blue) LoctiteR or equivalent to
the threads, and torque to 120–150 in-lb (14–17 N.m).
2
Arrow (A) must point toward air valve (B).
B
WARNING
23
101
2
A
106
308479
1
02635B
19

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