C-110-170-200E R11 Page 16
Servicing the Plungers (Pos: 23):
Recommend to replace Piston kits, Support Rings kits, and Water Seals kits whenever
servicing the plungers.
1. Remove the plunger retainer nut (Pos: 25).
2. Insert the gasket scraper between the copper washer (Pos: 24) and plunger (pos: 23) to
remove the washer (Pos: 22).
3. Twist and pull the plunger off the plunger rod.
4. Remove the plunger rod O-Ring (Pos: 21) with the mechanics pick.
5. Remove the washer (Pos: 22). And clean any thread locker that is left on the plunger
rod and retaining nut threads.
6. To reassemble the plungers, proceed the other way round and tighten the cover screws
with a torque wrench. (Referring to torque specification)
Pump head (Pos: 36) to drive end (Pos: 9) Installation:
1. Turn the crankshaft to align the plungers as shown.
2. Place the head evenly onto the plungers and push it until it makes contact with the
drive end of the pump.
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