MacDon A40-D - Manual (Page 71)

SECTION 6 OPERATION
169000 / 169040
69
Revision E
n. Check reel drive chain tension. Total chain
slack at (N) should be 1/4 in. (6 mm).
If necessary, adjust as follows:
1. Loosen bolt (O) on sprocket, and jam nut on
adjuster bolt (P).
2. Turn adjuster bolt (P) to move idler sprocket
downward until chain slack is achieved as
above.
3. Rotate auger and check chain for slack at
tightest point. Re-adjust position of idler
sprocket to achieve required slack.
4. Tighten jam nut at (P) and nut (O) on
sprocket. Re-check tension.
o. Close shields before engaging header.
O
N
P