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7
11. Take a thin screw driver and pry out the grooved ring (39A).
Note: This seal (39A) will not be reusable, so replace with a
new part. For the seal-pack (41-43A), remove with either a
socket wrench or use a screw driver to push against the rear lip
of the pressure ring (41) or v-sleeves (42). You will need to
remove seals evenly out of the seal sleeve (39). Be careful not
to score the sleeve or metal parts (41 & 43).
39A 39 41 42 43 45
GP7128 Repair Instructions
8. Separate plunger (36) from
crosshead (25) by means of
one open-end wrench.
9. Pull seal sleeves (39) out of
their fittings in the crank-
case. Take seal case (38)
out of seal sleeve (39).
10. If o-rings (38A and 38C) or support rings (38B and 38D) are
damaged, replace with new parts. Examine plunger (36) for wear.
38A 38B 38 38B 38A 36
38C
38D