33
307–920
DRIVE HOUSING REPLACEMENT
Before doing this procedure, follow the
Pressure
Relief Procedure Warning
on page 23 to reduce
the risk of a fluid injection injury , splashing in the
eyes or in the skin, injury from moving parts or elec-
tric shock.
Unplug the sprayer!
WARNING
Refer to Fig 25.
NOTE:
Stop the sprayer at the bottom of its stroke to get
the crank (E) in its lowest position. T o lower it
manually, carefully rotate the blades of the fan
with a screwdriver.
1. Remove the front cover and screws (31, 32).
2. Disconnect the hose (47) from the pump outlet.
3. Remove the four screws (33) and lockwashers (49)
from the bearing housing.
4. Lightly tap the lower rear of the bearing housing (27)
with a plastic mallet to loosen it from the drive hous-
ing (2). Then pull the bearing housing and connecting
rod assembly straight off the drive housing.
5. Remove the two screws (51) and lockwashers (63)
from the recess of the drive housing, the two screws
(30) and lockwashers (65) from the rear of the motor
end bell (1b) and the two screws (21) and lo-
ckwashers (65) from the upper rear of the motor end
bell (P).
6. Tap the drive housing (18) with a plastic mallet to
loosen it from the front end bell, then pull it straight
off.
DO NOT allow the gear cluster (9) to fall when re-
moving the drive housing (18). It is easily damaged
if dropped. The gear may stay engaged in either the
motor end bell or the drive housing.
DO NOT lose the thrust balls (10) located at each
end of the gear cluster (9) or allow them to fall be-
tween gears. The ball, which is heavily covered with
grease, usually stays in the shaft recesses, but
could be dislodged. If caught between gears and
not removed, the balls will seriously damage the
drive housing. If the balls are not in place, the bear-
ings will wear prematurely.
CAUTION
7. Liberally apply bearing grease to the gear cluster (9).
Check to be sure the thrust balls (10) are in place.
8. Place the bronze–colored washer (18b) THEN the
silver–colored washer (18a) on the shaft protruding
from the big gear in the drive housing (18). Align the
gears and push the new drive housing straight onto
the motor end bell and locating pins.
9. Starting at Step 5 and working backwards, continue
to reassemble the sprayer.
Fig 25
14
64
63
P
18a
18b
9
18
E
49
33
32
31
39
27
51
63
10
47
17
10
30
63
Содержание 231-081
Страница 47: ...47 307 920...
