Drive Housing and Connecting Rod
28
3A4637A Operation, Repair, Parts
Drive Housing and Connecting Rod
Removal
1. Perform
2. Remove screws (32) and front cover (52).
3. Remove pump. Refer to
4. Remove four screws (34) from drive housing (43).
5. Pull connecting rod (29) and lightly tap lower rear of
drive housing (43) with plastic mallet to loosen from
pinion housing (44). Pull drive housing and
connecting rod assembly off pinion housing.
6. Inspect crank (47) and connecting rod (29) for
excessive wear and replace parts as needed.
Installation
1. Evenly lubricate inside of bronze bearing (C) in drive
housing (43) with high-quality motor oil. Liberally
pack top roller bearing (E), lower bearing (D) inside
connecting rod (29) with bearing grease.
2. Assemble connecting rod (29) to drive housing (43).
Rotate connecting rod to lowest position.
3. Apply grease to washers 46, 49 and 48. Install in
order shown.
4. Lubricate gears with 0.26 pint of 110293 grease
(supplied with drive housing). Pack grease evenly
around gears.
5. Clean mating surfaces of pinion and drive housings.
6. Align connecting rod with crank (47) and carefully
align locating pins in drive housing (43) with holes in
pinion housing (44). Push drive housing onto pinion
housing or tap into place with plastic mallet.
7. Install screws (34) in drive housing. Torque evenly to
note 3 value.
9. Install front cover (52) with two screws (32).
NOTICE
Thrust washers may stick to grease inside of drive hous-
ing. Do not lose or misplace.
NOTICE
DO NOT use drive housing screws (34) to align or seat
bearing housing with drive housing. Align these parts
with locating pins to avoid premature bearing wear.
44
46
49
47
48
43
C
E
D
34
52
32
107
29
28
30
27
33
136
57
31
141
32
118
ti30158a
Oil
Pack with bearing grease 110293
Torque to 130-150 in-lb (14-16.9 N•m)
1
1
3
2
2
3
46
49
47
48
ti30410a
Oil
Pack with bearing grease 110293
1
2
1
2