Maintenance & Repair (cont’d)
21
1. Belt Tension Adjustment
Note: Belt tension and alignment are inter-related. Do not adjust one without checking the other.
1.
Remove belt guard.
2.
Loosen hydrostatic drive belt idler.
3.
Loosen (4) engine base (mount) bolts.
4.
Loosen lock nut on tension bolt and alignment bolt.
5.
Turn tension bolt clockwise to increase belt tension and counterclockwise to decrease belt tension.
6.
Check that the pulleys are aligned using a straight edge. To achieve proper pulley alignment you
may need to adjust the alignment bolt. This bolt will serve as an adjustment point to counter the
tension in the belts, which may cause the engine pulley to be misaligned with the cutter wheel
pulley.
7.
When belt tension is proper; 11 to 14 ft/lbs of tension, or 3/16" deflection and pulleys are aligned,
retighten all loosened bolts and nuts.
8.
Reposition belt idler for hydrostatic drive.
9.
Reassemble belt guard.
Hydrostatic Belt Adjustment
Adjustment is made by moving drive belt idler up or down.
CAUTION:
Over tightening this belt will damage the hydrostatic pulley.
Note: New belts require a "break-in" period of approximately 10 hours. Readjustment may be
necessary after "break-in."
Note: Use only factory recommended belts. Contact your Dosko dealer.
Belt idler
Lock nut
Tension bolt
Alignment bolt
Lock nut
