Service Manual User guide

Grasp the drive shaft extension and
lift the drive shaft slightly with a quick
upward motion. This will dislodge the
pressure plate from inside the bore of
the body. Using the thumb and fore-
finger of the other hand in the slots of
the pressure plate and releasing the
hold on the drive shaft, lift the pressure
plate from the pump.
Lift the gears straight up out of the
pump body.
Using the thumb of each hand in the
holes in the bottom pressure plate, lift
it from the pump, working it easily
out. USE EXTREME CARE IN THE RE-
MOVAL OF THIS PLATE.
DO NOT
PRY OR FORCE IT OUT.
Clean the outside of the pump thor-
oughly.
Place the pump in a machinist’s vice
securely, shaft up, using a cleanblock
of wood between the flats on either
side and the jaws of the vice. This
keeps from marring the machined sur-
face-of the pump and causing leakage
at the port connectors.
Remove all capscrews from the flange.
Coat the shaft extension with clean
grease. This will help to keep from
damaging the rubber lips of the seal
during removal of the flange.
Lift the flange off the pump, keeping
the flange as straight as possibledur-
ing removal. If the flange is stuck,
use a wood mallet or plastic hammer
to tap around the edge and loosen.
DISASSEMBLY
76
1.
2.
3.
4.
5.
6.
7.
8.
9.
FIGURE 121
FIGURE 123
FIGURE 124
FIGURE 125
Remove all O-rings,ring retainer,steel
rings, isolation plate, and back-up
rings that are in view.
FIGURE 122