7956A
Fig. 12
21
63
31
18
9
10
10
64
51
63
14
27
63
30
49
79
Torque to 300 in-lb (34 N.m)
3
2
Torque to 90–100 in-lb (10.2–11.3 N.m)
Liberally apply grease
1
2
2
2
3
1
33
1
ULTRA
MAX
1595 shown
15
308854
Drive Housing Replacement
CAUTION
DO NOT drop gear cluster (9) when removing drive
housing (18). Gear cluster may stay engaged in the
motor front end bell or the drive housing.
DO NOT lose thrust balls (10) located at each end of
gear cluster (9) or drop them between gears. The
balls, which are heavily covered with grease, usually
stay in the shaft recesses, but could be dislodged. If
caught between gears and not removed, the balls will
seriously damage drive housing. If the balls are not
in place, the bearings will wear prematurely.
NOTE:
Read
General Repair Information
on page 4
before doing this procedure. See Fig. 12.
1.
Relieve pressure
;
page 4.
2.
Remove front cover (31) and motor shield (14).
Unclip drain hose (79) from pump.
3.
Remove four bearing housing screws (33) and
lockwashers (49).
4.
Lightly tap lower rear of bearing housing (27) with
a plastic mallet to loosen it from drive housing (18).
Pull assembled bearing housing and connecting
rod straight off drive housing.
5.
Remove two drive housing screws (51) and
lockwashers (63).
6.
Remove two lower screws (30) and lockwashers
(63) and then two upper screws (21) and lock-
washers (63) from front of motor (1).
7.
Tap drive housing (18) with a plastic mallet to
loosen it from front of motor (1), and then pull drive
housing straight off.
8.
Liberally apply approximately 4 ounces of bearing
grease to gear cluster (9). Grease is supplied with
drive housing replacement kit. Be sure thrust balls
(10) are in place.
9.
Align gears and push new drive housing straight
onto front of motor and locating pins.
10. Continue reassembling sprayer.