MacDon A40-D, Operator'S Manual

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Revision A
Figure 4.66: Left Side V-Belt
3. Loosen three nuts (A) and jam nut on adjuster bolt (B).
4. Turn adjuster bolt (B) so that drive belts (C) can be
slipped off pulleys (D) and (E).
Installing Double V-Belts
IMPORTANT:
Belts are a matched set. Even if only one belt is damaged, replace both drive belts.
NOTE:
When installing new belt, never pry belt over pulley. Be sure adjusting screw is fully loosened, then tension belt.
Figure 4.67: Left V-Belt
1. Slip belts (A) onto pulleys (B) and (C).
IMPORTANT:
To prolong belt and drive life, do NOT over-tighten belts.
2. Turn adjuster bolt (D) to move pulley (B) until a force of
35
–
50 N (8
–
12 lbf) applied at midspan to each belt
deflects each belt (A) 4 mm (3/16 in.).
3. Tighten jam nut at location (D), and three nuts (E).
4. Close endshield.
NOTE:
Readjust tension of a new belt after a short run-in
period (5 hours).
Checking/Adjusting Timing Belt Tension on Left Side
IMPORTANT:
To prolong belt and drive life, do NOT over-tighten belt.
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.
MAINTENANCE AND SERVICING