MacDon A40-D, Operator'S Manual

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Revision A
Figure 4.68: Left Side Timing Belt
1. Turn off engine, and remove key.
2. Open left endshield.
3. Apply a force of 22
–
30 N (5
–
6.5 lbf) on belt (A) at
midspan. Belt should deflect 14 mm (9/16 in.).
If necessary, adjust as follows:
a. Loosen three nuts (B) and jam nut on adjuster
bolt (C).
b. Turn adjuster bolt (C) to move pulley (D) until
required tension is achieved.
c. Tighten jam nut at location (C) and three nuts (B).
4. Close endshield.
NOTE:
Readjust tension of new belt after 5 hours of operation.
Removing Timing Belt from Left Side
To remove the knife drive timing belt from the left side of an auger header, follow these steps:
Figure 4.69: Gearbox Locking Bolts
1. Turn off engine and remove key.
2. Open shield on header
’
s left side.
3. Loosen the three bolts (A) that lock the bottom drive
pulley in place.
4. Loosen adjusting bolt (B); this will loosen the belts.
Figure 4.70: Belts Tension Bolts
5. Loosen the three bolts (A) that lock the pulley in
position.
6. Loosen adjusting bolt (B); this will loosen the knife
drive belt.
7. Remove the two belts (C) that drive the cross shaft.
8. Remove the knife drive timing belt (D) from the rear
pulley.
MAINTENANCE AND SERVICING