Wright Serial 54956 and higher - Manual (Page 23)

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WARNING 6 Service and Adjustments
6.1 Tire Maintenance and Pressure
Excessively worn tire tread is dangerous on all hills. Replace drive tires with less than 3/32” of any tread
groove left. Use tires with the tread pattern recommended by Wright Mfg., Inc. only. Keep the tire pressure in
the drive tires between 18 and 22 psi. Higher pressures will cause the tires to have less traction, which will
force you to go slower and with less safety and give you a harder ride. Front Casters are equipped with non-
pneumatic tires and do not required any air. They do not have any tread but should be replaced when
excessively worn. Lowering the tire pressure below the recommended pressure will change the pitch of the
deck which may require further deck pitch adjustment.
6.2 Height-of-Cut
Before Adjusting the Height-of-Cut be sure of proper air pressure in rear drive tires and check for even tire
wear. Your mower is set from the factory at 3” with a ¼” forward pitch. The height-of-cut can be adjusted the
following ways:
1. Coarse Adjustment: For the coarse adjustment (1/2 inch increments) the rear motor supports (A) and (1
inch increments) front caster arms (B) need to be adjusted up or down to achieve a 1.5”-5” deck height.
2. Fine Adjustments: For fine adjustments (1/16”-1/4”) adjust either the ¼” blade spacers, ¼” caster “C”
spacers (C) or 1/16” caster washer (D).
3. Temporary Height-of-Cut Adjustment: using the caster shims ("C" spacers) you can adjust the blades
downward
6.3 Belt Tension Adjustment
The pump drive belt is self-adjusting, and requires no adjustment, just replacement. The blade drive belt is
self-adjusting also and requires no adjustment, just replacement.
6.3.1Replacing the Cutter Deck Belt
•
Stop engine and remove the key and wait for all moving parts to stop.
•
Remove deck covers
•
Remove belt by using a ½” ratchet and extension to relieve belt tension. (See figure)
D
C
B
A