MacDon A40D - Installing Double V-Belts

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D
A
B
E
C
Figure 4.69: Left 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
To install the double V-belts, follow these steps.
DANGER
To avoid bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key from the ignition before leaving the operator’s seat for any reason.
IMPORTANT:
Belts are a matched set. Even if only one belt is damaged, replace both drive belts.
NOTE:
When installing the new belt, never pry the belt over the pulley. Fully loosen the adjusting screw, then tension the belt.
1. Shut down the engine, and remove the key from the ignition.
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A
B
C
D
E
Figure 4.70: Left V-Belt
2. Slip belts (A) onto pulleys (B) and (C).
IMPORTANT:
To prolong the belt and the drive life, do NOT over-tighten
the belts.
3. 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.).
4. Tighten the jam nut at location (D), and three nuts (E).
5. Close the endshield.
NOTE:
Readjust the tension of a new belt after 5 hours of
operation.
MAINTENANCE AND SERVICING