SECTION 7
HIGH PRESSURE WATER
p. 7-9
80078868
DANGER
!
Figure 7-4
SEAL REMOVAL PROCEDURE
1. Thread plug (3) into seal head gland (5), (hand tight).
2. Position HP cylinder jug (1) upright as shown in fixture (2).
3. Fill HP cylinder with water.
4. Position used or spare plunger (4) in HP cylinder at point “A”. Note that if
the bronze packing follower is loose, install it in the HP cylinder bore, then
slip the plunger through the packing follower to insure a good seal for
hydraulic seal removal.
5. Place shop rag around plunger to avoid splash back.
6. Lightly drive plunger into HP cylinder using dead-blow hammer until
plunger seal components move outward at point “A”.
HP cylinder jug is heavy and if it is stood on top pan of IRWJ
pump, will present a falling object hazard. Take care to
properly support jug so that it will not fall.
7. Slip plastic liner tube from bore of HP cylinder, inspect for possible heat or
wear damage or for possible debris. Feel ID of HP cylinder for approximately
1-inch into bore. Sand any obvious ridges or grooves with 600-grit wet/dry
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