SERVICE MANUAL | 3570 Series Plunger Pumps
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1.43 Use a pick to remove keyhole washers and
barrier slingers located behind the plungers.
Inspect for damage.
PLUNGER REMOVAL
1.35 Remove seal retainers from crankcase
housing.
1.36 Remove and inspect the wicks. Replace as
needed (wicks are not included in the seal kit).
Servicing the Seals
1.37 Using a 21 mm combination wrench, loosen
the plunger retainers.
1.40 Remove the plunger retainers from the
plungers and inspect the O-rings and backup
rings for damage.
1.38 Before completely removing the plunger
retainers, stop and push the plungers
towards the drive end to break loose from the
retainers.
1.41 Using a pick, remove the plunger retainer
O-rings from the plunger retainers.
1.39 Remove the plungers and retainers.
1.42 Inspect ceramic plungers for cracks and
scoring to the surface. Clean with a wire-
wheel brush if necessary.
Loctite and 242 are registered trademarks of the Henkel Corporation.