Rollers
308870G 11
Installation
1. Liberally apply bearing grease (supplied with
replacement gear cluster) to gear cluster (18),
washers (82) and (83) (F
IG. 2, page 10) and to
areas called out by note 1. Use full 0.68 pint (0.32
liter) of grease for GMax 7900.
2. Place bronze colored washer (83) and silver colored
washer (82) (F
IG. 2, page 10) onto drive housing
(20). Install gear cluster (18) through washers (83)
and (82).
3. Place bronze colored washer (20g) and silver col-
ored washer (20h) on shaft protruding from large
shaft of drive housing (20) (F
IG. 2, page 10). Align
gears and push new drive housing straight onto pin-
ion housing and locating pins (B).
4. Install two washers (9) and screws (99) (F
IG. 2,
page 10).
5. Install four lock washers (9) and cap screws (10)
into drive housing (20) (F
IG. 2, page 10).
6. Install cover assembly (24) with six lock washers (9)
and cap screws (10) (F
IG. 2, page 10).
Cam Follower Bearings
Removal
1. Relieve pressure, page 6.
2. Cycle pump piston rod (222) to lowest position (F
IG.
3). Turn engine off.
NOTE: All Steps refer to F
IG. 4.
3. Remove six cap screws (10), lock washers (9) and
cover assembly (24) (F
IG. 4, page 12).
NOTE: A screw driver may be needed to pry off
cover assembly.
4. Remove four dowel pins (97) and rollers (98) (F
IG.
4, page 12).
5. From front, drive out pump pin (101) with a screw
driver (F
IG. 4, page 12).
6. Remove two retainer rings (20d) (F
IG. 4, page 12).
7. Remove cam follower plate (20b) (F
IG. 4. page 12).
NOTE: Two 1/2 in. x 13 bolts may be needed to
remove cam follower plates.
8. Remove two cam follower bearings (20c) (F
IG. 4,
page 12).
FIG. 3
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