Giant P200A Series Repair and, Инструкция по эксплуатации / Руководство по ремонту и обслуживанию

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NOTE: Always take time to lubricate all metal and nonmetal parts with a light film of oil before reassembly.
This step will ensure proper fit, at the same time protecting the pump nonmetal parts (i.e., the elastomers)
from cutting and scoring.
1. With a 22mm socket
wrench, remove the (3)
discharge valve plugs
and (3) inlet valve plugs
(32) Inspect the o-ring
(33) for wear and re -
place if damaged.
2. Using a needle nose
pliers, remove the inlet
and discharge valve as-
semblies (32X).
3. By inserting a small
screw driver between
the valve seat (27) and
the valve spring retainer
(30), the valve assembly
can be separated.
7. Remove the weep return
ring (25), pressure ring
(24), and v-sleeve (23)
from the valve cas-
ing (26). Remove the
v-sleeve (23A) from the
seal case (20). Inspect
all parts, including o-ring
(21) for wear and re -
place as necessary
8. Check surfaces of
plunger (16). A dam -
aged surface will cause
accelerated wear on
the seals. Deposits of
any kind must be care-
fully removed from the
plunger surface. A dam-
aged plunger must be
replaced!
9. If the crankcase oil
seals (19) are to be re -
placed, they can be re-
moved by prying loose
with a flat screwdriver.
Take care not to make
contact with the plunger.
4. Remove the o-ring (31).
Inspect all parts for wear
and replace as neces-
sary. Apply one drop of
Loctite 243 to the valve
plugs (32) and tighten to
55 ft.-lbs. (79 Nm).
5. Next, use a 5mm allen
wrench to remove the 8
socket head cap screws
(34).
6. Carefully slide the valve
casing (26) out over the
plungers.
REPAIR INSTRUCTIONS - P225/P226/P223/P228 PUMPS