MacDon DWA for M Series User Manual

Page 31

MAINTENANCE/SERVICE

169216

Revision

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.