Replacement - Fluke 700HPPK Service Manual

Replacement

Carefully inspect the plunger seal for damage to its outer
edges on the open face of both the inner and the outer
diameters. Any damage to these surfaces results in a
leak when reassembled. See Figure 3.
Figure 3. Plunger and Plunger Seal
1. Carefully put the plunger into the back, flat-side of
the plunger seal, and then gently slide them together.
The plunger seal has an embedded O-ring that
must face towards the main body to make the
seal when assembled.
2. See Figure 4. Carefully insert the plunger assembly
into the main body so that the bonnet () is evenly
supporting the plunger seal (), and the seal is
aligned with the tapered hole in the body.
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High Pressure Pneumatic Pump
Manifold Service (SK-700HPM-FS) Instructions
Figure 4. Plunger and Main Body
3. Use the bonnet to gently push the seal into the body.
4. Ensure there is grease on the plunger threads, apply
if necessary.
5. Use a 4 mm hex wrench to secure the plunger
assembly with the cap screws and tighten to 5.5 N·m
(50 lbf·in).
6. Refit the knob, and use a 2.5 mm hex wrench to
secure it with the set screws to 1 N·m (10 lbf·in).
1 2
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