Service Manual

Topdresser 1800 & 2500 Page 5 – 7 Chassis
Removal (Fig. 3)
1. Position Topdresser on a level surface with hopper
empty. Chock Topdresser wheels to prevent machine
from moving.
2. Remove brush guard from machine (see Brush
Guard Removal in this section).
3. Loosen two (2) lock nuts that secure hydraulic brush
motor to hopper frame. Do not fully remove lock nuts
from cap screws.
NOTE: Normal brush rotation is counter–clockwise as
viewed from left side of Topdresser (Fig. 4).
4. Loosen set screw (item 17) that secures bearing
locking collar to brush shaft. Using a punch and ham-
mer, rotate locking collar clockwise (opposite direction
of normal brush rotation) to loosen collar.
5. Loosen and remove four (4) set screws (item 11)
from brush.
6. Support brush to prevent it from shifting.
7. While supporting brush, pull brush shaft (item 13)
from brush.
8. Carefully slide brush motor shaft from brush until
brush can be removed from brush motor shaft. Remove
brush from machine. Retrieve square key from brush
motor shaft.
9. If necessary, remove flange bearing assembly from
hopper frame.
Installation (Fig. 3)
1. If removed, install flange bearing to hopper frame
with cap screws, flat washers and lock nuts. Place cap
screws from the inside of the hopper frame to the out-
side. Make sure that bearing grease fitting is orientated
up and locking collar is fitted to bearing.
2. Clean brush shaft (item 13) and apply antiseize lubri-
cant to shaft.
3. Apply antiseize lubricant to shaft of brush motor.
Place square key in brush motor shaft.
4. Position brush assembly to hopper frame.
5. Slide brush motor shaft into brush. Make sure that
square key remains in motor shaft and that the key is
aligned with slot in brush.
6. Slide brush shaft (item 13) through flange bearing
assembly and into brush until end of brush shaft is flush
with bearing locking collar. Do not tighten set screw in
locking collar at this time.
7. Tighten fasteners to secure hydraulic brush motor to
hopper frame. Torque lock nuts from 54 to 66 ft–lb (74
to 89 N–m).
8. Center brush in hopper frame.
9. Check that brush is adjusted evenly across conveyor
belt. There should just be contact with brush bristles at
top of belt cleats. If necessary, loosen and change posi-
tion of brush motor and/or flange bearing to obtain prop-
er brush adjustment.
10.Apply Loctite #242 (or equivalent) to threads of set
screws (item 11). Secure brush to motor shaft and brush
shaft with four (4) set screws.
NOTE: Normal brush rotation is counter–clockwise as
viewed from left side of Topdresser (Fig. 4).
11.Using a punch and hammer, rotate bearing locking
collar counter–clockwise (direction of normal brush
rotation) to tighten collar onto brush shaft.
12.Apply Loctite #242 (or equivalent) to locking collar
set screw. Secure bearing locking collar to brush shaft
with set screw.
13.Install brush guard to machine (see Brush Guard
Installation in this section).
14.Lubricate grease fitting on flange bearing.
1. Brush 2. Rear conveyor roller
Figure 4
2
1
NORMAL ROTATION DIRECTION
FRONT
Chassis