9
14) Remove circlip ring (48) from
seal sleeve (38). Remove
spacer disc (47) and seal
ring (46) from seal sleeve.
Replace worn or damaged
parts.
16) Remove support disc (41) seal unit (42, 43, 44) and pressure
ring (45) of seal sleeve (38). Examine seals for signs of wear or
cavitation, and if necessary, replace.
15) Remove leakage gasket (38B) from serrated pin (38A) on the seal
sleave (38). Check o-ring (38C) for damage and replace if neces
-
sary.
IMPORTANT!
The 3.2 mm (diameter bore of the leakage
gasket (38B) must be inserted directly on the serated pin (38A)
of the seal sleeve (38). The leakage gasket must fit snugly to the
seal so that the bevelled surface of the gasket faces outwords.
38
38C
38B
36
38A
45
44
43
42
43
42
41
NOTE:
Seal life can be in-
creased if the preten-
sioning allows for a little
leakage. This assists
lubrication and keeps
the seals cool. It is
therefore not necessary
to replace seals before
the leakage becomes
too heavy and causes
output and operating
pressure to drop.
17) Examine plunger (36) for signs of wear or cavitation. If the
surface of the plunger is worn, screw out the plunger with a
27mm tool. Clean centering and front surface of crosshead
with plunger (25).Thread new plunger carefully through oiled
seals in seal sleave. Coat thread of new plunger lightly with
bonding agent (e.g., loctite).
GP7522GB REPAIR INSTRUCTIONS
Summary of Contents for GP7522GB
Page 4: ...4 Exploded View GP7522GB...
