309880 11
Pump Service
6.
Lightly grease the retaining screw and the outer
end of the plunger. Place the washer, o-ring, and
backup ring around the screw, and install the
screw through the plunger. Torque to 14.4 ft-lb
(19.5 N
S
m).
NOTE:
If you plan to replace the packings, See
Servicing the V-Packings
at right.
7.
Lubricate the outside of each plunger. Slide the
manifold onto the crankcase, being careful not to
damage the seals.
8.
Install the capscrews and washers finger tight.
Torque the screws to 22.1 ft-lb (30 N
S
m) following
the tightening pattern in Fig. 3. Uneven tightening
can cause the manifold to bind or jam.
1
4
2
3
5
8
7
6
Fig. 3
Servicing the V-Packings
NOTE:
There are two types of packing kits:
801486 contains packings only.
801487 contains packings, rings, and retainers.
1.
Remove the manifold as outlined in
Pump Sec-
tion
on page 10.
2.
Carefully pull the packing retainer from the mani-
fold. Examine the o-ring, and replace if cut or
damaged.
3.
Remove the V-packing and head ring. Pull out the
intermediate retainer ring. Remove the second
V-packing and second head ring.
4.
Inspect all parts, and replace as necessary.
5.
Thoroughly clean the packing cavities, and exam-
ine for debris or damage.
6.
Lightly grease the packing cavities, and replace
the packings in the following order: head ring,
V-packing, intermediate ring, head ring, V-packing,
packing retainer. Install the O-ring in the retainer
groove.
CAUTION
Install the parts in the proper order and facing the
proper direction. Improperly installed parts will
cause a malfunction.
7.
Reassemble the manifold as instructed in
Servic-
ing the Plungers
on page 10.
