Drive Housing, Connecting Rod, Crankshaft - Graco GM 3000 Instructions-Parts List Manual

Drive Housing, Connecting Rod, Crankshaft
6. Remove and inspect the crankshaft
(8)
and the
connecting rod (10).
,' ,
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
Installation
pressure, iollow the Pressure
Relief
bearing with SAE non-detergent oil.
Procedure on page
12.
7. Lubricate the inside of the drive housing bronze
Removal
NOTE: Inspect parts as they are removed. Replace 8. Install the connecting rod.
parts that are worn or damaged.
1. Remove the displacement pump. See page 32.
2. Remove the pressure control (25). See page 18.
washer (3) on the crankshaft (8).
9. Place the large washer (5) and then the small
3.
Remove the three drive housing screws and lock
washers (15, 16). See Fig.
5
on page 17. 10. Insert the crankshaft into the bearing in the drive
housing (6) and connecting rod (10).
4.
Remove the two pinion housing screws (69) and
lock washers (16). See Fig. 5 on page 17.
5.
Tap the lower rear of the drive housing (6) with a
drive housing straight off the pinion housing.
plastic mallet to loosen the drive housing. Pull the
A
CAUTION
Do not allow the gear (19) to fall;
it
may stay at-
tached to the drive housing or to the pinion housing.
fall between the gears, which will damage the drive
Do not lose the thrust balls (sa and 2d) or let them
housing if not removed. The balls, which are heavily
covered with grease, usually stay in the housing
recesses, but could be dislodged. If the balls are not
in place, the bearings will wear prematurely.
11. If replacing the complete drive housing assembly
(6). brush G-n lubricant (supplied) on all gear
teeth. Then recoat the gear teeth with bearing
grease into the bottom part of the drive housing.
grease (supplied). Pack the remaining bearing
Use all of the grease. See Fig. 6.
I
I
!
12. Install gear (19).
13. Install new gasket (64).
14. Work backwards from step
4
to reassemble.
16
308-620