MacDon A40-D, Operator'S Manual

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Revision A
Installing Timing Belt on Left Side
CAUTION
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key
from ignition before leaving operator
’
s seat for any reason.
Figure 4.73: Left Side Inboard Opening
1. Route knife drive timing belt from inboard side of
endsheet through opening (A).
Figure 4.74: Left Side Timing Belt
2. Position knife drive belt (A) onto knife drive box
pulley (B).
3. Route knife drive belt (A) onto knife drive pulley (C).
4. Turn adjuster bolt (D) to move pulley (C) until a force of
22
–
30 N (5
–
6.5 lbf) deflects belt 14 mm (9/16 in.) at
knife drive belt midspan (A).
IMPORTANT:
To prolong belt and drive life, do NOT over-tighten belts.
NOTE:
When installing new belt, never pry belt over pulley.
Be sure adjusting screw is fully loosened, then
tension belt.
Figure 4.75: Left Side Timing Belt
5. Tighten adjuster bolt jam nut (A), and three nuts (B) on
knife drive pulley.
6. Reconnect hoses onto hydraulic motor (C).
7. Install knife drive V-belts. Refer to Installing Double
V-Belts, page 141 .
MAINTENANCE AND SERVICING