Graco GM 5000 Instructions-Parts List

19
308-327
Drive Housing
WARNING
To reduce the risk of serious injury , always follow
the Pressure Relief Procedure W arning on page
16 before repairing the sprayer .
NOTE: Refer to Fig. 7 for this procedure.
1. Remove the front cover and screws (7,78).
2. Unscrew the hose from the pump. Remove the
spring clips (40,52) and the drain hose (51) from
the pump.
3. Remove the four screws (72) and lockwashers
(73) from the bearing housing (1 1).
4.
Lightly tap the back of the bearing housing (1 1)
with a plastic mallet. Pull the pump, bearing hous -
ing and connecting rod away from the drive hous -
ing as one assembly (C).
5. Remove the two drive housing screws (10) and
lockwashers (4). Remove the four pinion housing
screws (215) and lockwashers (214).
6. Lightly tap around the drive housing (5) to loosen
it. Pull the drive housing straight of f the pinion
housing (219). Be prepared to support the gear
cluster (16) which may also come out.
CAUTION
Do not drop the gear cluster (16) when removing
the drive housing (5). The gear cluster is easily
damaged. The gear may stay engaged in the drive
housing or pinion housing.
Do not lose the thrust balls (5c or 219d) located at
each end of the gear cluster , or allow them to fall
between the gears. The balls, which are heavily
covered with grease, usually stay in the shaft re
-
cesses, but could be dislodged. If the balls are
caught between the gears and not removed, they
will damage the drive housing. If the balls are not in
place, the bearings will wear prematurely .
7.
Apply the full 6 oz. (160 grams) of bearing grease,
which is supplied with a replacement gear , to the
gear cluster (16). Be sure the thrust balls (5c and
219d) are in place.
8. Place the bronze colored washer (5a) and then the
silver–colored washer (5b) on the shaft protruding
from the big gear of the drive housing (5). Align the
gears and push the new drive housing straight
onto the pinion housing and locating pins (A).
9. Starting at Step 4, work backwards to reassemble
the sprayer . Or , move ahead to the next section in
this manual if further service is needed.
Fig. 7
02694
78
7
72
73
C
10
4
5
16
215,214
219
52
51
49
Torque to 300 in-lb (34 N.m)

Apply a full 6 oz. (160 grams) of
bearing grease (supplied with
replacement gear – 16)



5a
5b
5c
A
219d

Graco GM 5000 Specifications

General

Brand	Graco
Model	GM 5000
Category	Paint Sprayer
Language	English