Drive Housing; Removal; Installation - Graco 257369 Repair Manual

Drive Housing

Removal

1. Perform Pressure Relief Procedure, page 9.
2. Remove Bearing Housing, page 12.
Thrust washers may stick to grease inside of drive
housing. Do not lose or misplace.
3. Remove six screws (38).
4. Lightly tap around drive housing (33) to loosen drive
housing. Pull drive housing straight off pinion hous-
ing. Be prepared to support combination gear (32)
which may also come out.
32

Installation

1. Apply all grease supplied with replacement gear
cluster to gear teeth and mating surfaces.
313889E
NOTICE
29
33
38
ti13712a
2. Ensure thrust washers (30, 31) are on combination
gear (32) and washers (33a, 33b) are on crankshaft
of drive housing (33).
30
31
32
3. Clean mating surfaces of pinion and drive housing.
4. Align gears and push new drive housing straight
onto pinion housing (29) and locating pins (B).
33a
5. Install six screws (38). Torque evenly to 200 ± 10
in-lb (22.6 ± 1.1 N•m).
ti13712a
6. Install housing (40) and (43), see page 12.
7. Install Pump, page 24.
DO NOT use drive housing screws to align or seat
drive housing with pinion housing. Align these parts
with locating pins to avoid premature bearing wear.
Drive Housing
30
ti6252a
33b
29
ti13840a
38
NOTICE
13