Service Manual

97PR Series
Refer to Figure 8.
Disassembly
1. Loosen the bypass valve (50) using a 5/8”
wrench.
2. Remove the bypass (50) from the end cap
(25).
Inspection
1. Inspect the bypass O-rings and mating seats
in the end cap (25) for damage or foreign
materials.
2. If damaged or worn replace bypass (50).
Assembly
1. Lay the pump on its side, so the bypass port is
horizontal.
2. Insert the bypass (50) into the bypass port on
the end cap (25). Tighten to the proper torque
value. See page 92.
REMOVAL, INSPECTION AND /OR
REPLACEMENT OF THE BYPASS
Figure 8. PR Pump Bypass
25
50