12
824–001
804–544 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 nut
through the plunger. Torque to 11 ft–lb (15 N
m).
NOTE:
If you plan to replace the packings, refer to
Servicing the V–Packings.
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 8.8 ft–lb (12 N
m) following
the tightening pattern (Figure 4). Uneven tightening
may cause the manifold to bind or jam.
Figure 4
1
4
2
3
5
8
7
6
Servicing the V-Packings
NOTE: There are two types of packing kits: one is
packings only, the other includes the
packings, rings and retainers.
1.
Remove the manifold as outlined in the Pumping
Section.
2.
Carefully pull the packing retainer from the
manifold. Examine the o-ring and replace it if it is
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
examine for debris or damage.
6.
Lightly grease the packing cavities and then
replace the packings in the following order: head
ring, v-packing, intermediate ring, head ring,
v-packing and packing retainer with the o-ring
installed in the retainer groove.
CAUTION
Install the parts in the proper order and facing the
correct direction. Improperly installed parts will
cause a malfunction.
7.
Reassemble the manifold as instructed in
Servicing the Plungers.
