78
Maintenance Instructions
H24d
Adjustments
Blade Clutch (PTO)
Clutch Engagement/Belt Tension
The clutch engagement and PTO belt tension are
adjusted using the clutch actuator link. After
installing new PTO belts,
after 10 hours and
every 100 hours
thereafter, check and adjust for
the clutch spring assembly bolt head dimension as
shown in the
PTO Clutch Engaged
illustration. If
the clutch actuator link or clutch spring assembly
have been disassembled, first reset them to their
factory preset lengths (as shown in the
PTO
Clutch Disengaged
illustration) and then proceed
with adjustment as follows.
Adjust the length of the clutch actuator link to
achieve a clutch spring assembly bolt head clear-
ance of 1/4 in. to 5/16 in. (6 mm to 8 mm) with the
clutch engaged. To adjust length: remove ball joint
from clutch arm and
shorten
the clutch actuator
link to
increase
this measurement, or
lengthen
the clutch actuator link to
decrease
this measure-
ment. If adjustments are needed more frequently
than every 100 hours to maintain dimensions, it
may suggest problems with pulley wear or belt
misalignment.
PTO Clutch Engaged
Blade Clutch
Engaged
1/4 in. to 5/16 in.
(6 mm to 8 mm)
Clutch Actuator
Link
Ball Joint
Clutch Spring Assembly
(Spring Compressed)
Clutch Engagement
Arm
Front of Mower
Clutch Arm
Blade Clutch
Idler Pulley
