22
5.2 ADJUSTMENTS
IMPORTANT: Disengage PTO, shut off engine, wait for all moving parts to stop, and remove key before servicing,
cleaning, or making adjustments to the unit.
5.2.1
Cutting Height Adjustment.
Stop engine, wait for all moving parts to stop, and remove key or pull out spark plug lead.
Disengage Blade.
NOTE:
When changing cutting height positions, always come to a complete stop and disengage the blade.
Insert height adjustment pin into the hole corresponding to desired cutting height. See decal on deck lift plate. Move
lever out of transport position and down onto height adjustment pin to mow at selected height. See FIG 8.
FIG 8
5.2.2
Blade Drive Belt Adjustment and Replacement.
Stop engine, wait for all moving parts to stop, and remove key or pull out spark plug lead.
Remove the belt cover. Adjust the mower deck belt using a belt tension gauge. Engage the blade drive lever, tension
the mower belt, and adjust the belt so that the belt moves 1/4″ with 10 pounds of pressure. Adjust the tension by
tightening or loosening the
nut M10. (See FIG 9).
Engage the blade drive lever
，
loosen the nut
，
tension the slot forward. Make sure the belt tightening is suitable.
(Give the belt tension side the force of 1-2KG, the belt d
eflection is 7-9mm/10 lbs pull with ½” deflection.
) (See FIG
9)
5.2.2.1 Synchronous Belt Adjustment & Replacement
Stop engine, wait for all moving parts to stop, and remove key or pull out spark plug lead.
Remove blade transmission belt according to reference method 5.2.2, then loosen nut in the idler pulley, take the
synchronous belt from the axis pin, then install the new synchronous belt in reverse order. (See FIG9)
5.2.2.2 Blade Brake Pad Replacement
Stop engine, wait for all moving parts to stop, and remove key or pull out spark plug lead.
Remove the belt cover, turn the shift arm, move shift arm away from pulley, remove bolts and nuts, replace with new
brake pad, install bolts and nuts, and make blade brake pad aim at the belt pulley groove center, then screw down the
nut. Test blade brake system; blade brake pad can make rapid rotary blades stop running in 3 seconds. (See FIG 9)
