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Reassembly sequence of the P200A series pump
1) If oil seals (19) were removed, replace with seal lip towards crankcase. Lubricate seals before replacing.
2) Replace seal case (20) with o-rings (21) over plungers. Generously lubricate o-rings and oil seal before
reassembly. Replace v-sleeve (23) over plungers (16)..
3) Generously lubricate v-sleeve (23). Assemble v-sleeves (22) into valve casing (#26). Assemble weep
return ring (25) and pressure ring (24) over plungers (16). Slide valve casing over plungers and seat
firmly. Replace the eight socket head cap screws (34) and tighten to 105 inch-pounds in a crossing
pattern.
4) Replace the six o-rings (31) and the six valve assemblies (32X). Now replace the six valve plug o-rings
( 33). For pumps manufactured prior to 5/97, tighten plugs (32) to 33 ft-lbs. otherwise, apply one drop of
Loctite 243 to the valve plugs (32) and tighten to 59 ft.-lbs.
REPAIR INSTRUCTIONS - P200A SERIES
NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600
For maintenance of the gear end of your pump contact Giant Industries or your local distributor.
Phone: 419/531-4600
NOTE: If there are
deposits of any kind (i.e.,
lime deposits) in the
valve casing, be certain
that the weep holes in the
weep return ring (25)
and valve casing (26)
have not been plugged.
9. If the ceramic plunger pipe
(16B) is damaged, remove
the plunger bolt (16C).
Discard the old plunger
pipe (16B) and copper
gasket (16D), and clean the
old locktite from the
plunger bolt (16C) and
plunger base (16A).
Replace the plunger with
the new one and locktite
the plunger bolt and torque
to 120 inch-pounds.