MacDon DWA for M Series - Manual (Page 31)

MAINTENANCE/SERVICE
169216 Revision E 29
Idler roller:
1. Raise deck and engage safety pin.
2. Remove front skid. Loosen draper. Draper
does not need to be removed but removal
will ease roller disassembly.
3. Remove idler roller (T) by removing bolt and
washer (R) at each end of roller.
4. Re-install idler roller in reverse order.
5. Torque bolts (R) to 70 ft-lbf (95 N-m).
Draper roller bearing/seal
replacement:
1. Remove roller assembly. See previous
section for instructions.
2. Remove bearing assembly (B) and seal
(A) from roller tube (C) as follows:
a. Attach a slide hammer to threaded
shaft.
b. Tap out the bearing assembly.
3. Clean inside of roller tube (C). Check
tube for wear or damage. Replace if
necessary.
4. Install bearing assembly (B) into roller
by pushing on outer race of bearing.
The bearing is fully positioned when the
0.55 in. (14 mm) dimension is achieved.
5. Apply grease in front of bearing.
6. Install seal into roller by pushing on the
outer and inner race of the seal. A flat
washer (1.0 in. ID X 2.0 in. OD) works
well to push against the seal. The seal is
fully positioned when the 0.12 in. (3 mm)
dimension is achieved.
7. Make sure bearing and seal turn freely.
Re-install roller assembly in to deck.
A
B
C
B
A
R
T