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Copyright © 2022 White Knight Fluid Handling | A Graco company
9/14/2022 Version 1.1.8
Page
| 17
187 E. 670 S., Kamas, UT 84036
435.783.6040 888.796.2476
•
Four pin wrench
to remove pilot
assembly (counter
clockwise rotation).
Repeat for other
side.
•
Remove all
plastic caps.
•
Remove diaphragms by
peeling one back and
turning it counter-
clockwise. Slide the
second diaphragm out
with the shaft.
•
Use 4 mm Allen
wrench to remove
muffler cap. Remove
poly felt muffler pads
and inserts.
•
Use 10 mm
socket to remove
outlet manifold.
•
Use 10 mm socket to remove
nuts from bolts on one side
of head. Remove both
retainer rings and heads.
4.6 Disassembly instructions
•
Remove top check valve parts
following the same process
described in step 3. Use hook
to remove wearable surface
placed below check assembly.
•
Use 10 mm socket to
remove pump base feet
and inlet manifold
•
Remove bottom O-ring,
and check valve parts.
Without scratching the
inner bore, use a hook to
remove the check cages.
1.
2.
3.
4.
5.
6.
8.
10.
7.
•
Remove the two glide seals
seated in the shaft cavity.
Then remove O-rings from
the same slots. Take care
not to damage the shaft
bore or the O-ring grooves.
Note locations of
O-rings/seals.
Servicing of Pump
Before servicing the pump verify that the pump has been drained and purged so as to minimize the
potential of physical damage and maximize the safety of service personnel.
9.
•
Remove wear surfaces in top
and bottom manifolds. Use
hook/screwdriver if necessary.
DO NOT DAMAGE MANIFOLD
11.
