Dixon ZTR 4423 Operator's Manual download pdf (Page 31)

CARE AND MAINTENANCE

BELTS:

Check belts every 50 hours. Replace any belts found to be in

poor condition.

BELT TENSION:

Transaxle Drive Belt: P/N 7650

No adjustment required.

Engine to Mower Deck Belt: P/N 7725

No adjustment required. Correct belt tension is maintained

through a fixed engine location and a spring loaded idler

system. A pulsing movement of the belt idler will be observed

both during engagement of the electric blade clutch and actual

operation of the mower deck.

Note: Engagement of the electric blade clutch switch may

produce a sharp high pitched chirp or squeal as the belt

tension loading is absorbed by the idler system. This is

normal and not a sign of failure.

Mower Deck Serpentine Belt: P/N 6109

Refer to illustration for adjustment procedure.

Idler Weldment

L Rod

Idler Shock Mount

Hex Nut

Tighten or

Loosen Hex

Nut to

achieve this

dimension

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Dixon ZTR 4423 Operator's Manual Page 31