Dixon ZTR 6000 SERIES Operator's Manual page 32

CARE AND MAINTENANCE
HYDROSTAT DRIVE BELT TENSION ADJUSTMENT:
In normal use the hydrostat drive belt tension should be checked after
the first 20 hours of use for normal wear and stretch. It may be
adjusted as follows:
1.
2.
Note: If belt is over-tightened it will often make a "chattering"
3.
Tension Adjust Bolt
Idler Pulley
Cooling Fins
4.
32
Loosen the idler pulley locking nut until the idler pulley
can be just moved relative to the mounting bracket.
Tighten the tension adjust bolt until the belt is tight
enough to prevent belt slippage. Belt should deflect
approximately 3/8" to 5/8" under moderate
pressure. Do not over tighten.
noise.
Retighten the slide locking nut.
Motor Pulley
Retighten the tension adjust bolt 1/4 turn to set the
lockwasher and prevent loosening of the tension
adjust bolt.
Hydrostatic Drive Belt
Hydrostatic Drive Pulley