12
308525
Pump Service
6.
Lightly grease retaining screw and outer end of
plunger. Place washer, o–ring and backup ring
around screw and install screw through plunger.
Torque to 14.4 ft–lb (19.5 Nm).
NOTE:
If you plan to replace the packings, refer to
Servicing the V–Packings.
7.
Lubricate outside of each plunger. Slide manifold
onto crankcase, being careful not to damage
seals.
8.
Install capscrews and washers finger–tight. Torque
screws to 21.7 ft–lb (29 Nm) following the tighten-
ing pattern in Fig. 4. Uneven tightening may cause
manifold to bind or jam.
Figure 4
1
4
2
3
5
8
7
6
Servicing V–Packings
NOTE:
There are two types of packing kits: one is
packings only, the other includes the packings,
rings and retainers.
1.
Remove manifold as outlined in Pumping Section.
2.
Carefully pull packing retainer from manifold.
Examine o–ring and replace it if it is cut or dam-
aged.
3.
Remove v–packing and head ring. Pull out inter-
mediate retainer ring. Remove second v–packing
and second head ring.
4.
Inspect all parts and replace as necessary.
5.
Thoroughly clean packing cavities and examine for
debris and damage.
6.
Lightly grease packing cavities and then replace
packings in following order:
head ring,
v–packing,
intermediate ring,
head ring,
v–packing and packing retainer with o–ring in-
stalled in retainer groove.
CAUTION
Install parts in proper order and facing correct
direction. Improperly installed parts will cause a
malfunction.
7.
Reassemble manifold as instructed in Servicing
Plungers.
Summary of Contents for 800636
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