80
Maintenance Instructions
ADJUSTMENTS
Blade Brake Band Adjustment
The blade brake is designed to stop the blades with
in five (5) seconds after clutch disengagement.
Ev-
ery 100 hours of operation
verify correct perfor
mance of the blade brake by following the procedure
in
CHECKING/SERVICING
the
Blade Brake Ac-
tion
in this section.
WARNING
It is important to check and maintain blade
brake action for safe operation of the ma-
chine.
Adjust the working travel of the clutch idler pulley by
adjusting the brake band nut:
1. With the clutch disengaged, adjust the blade
brake band nut to achieve a 1/4 in. to 3/8 in.
(6.5 mm to 9.5 mm) gap between the PTO pul
ley and clutch idler pulley as shown in the
Blade
Brake Band Adjustment
illustration.
NOTE:
As the blade brake band/drum wears,
idler pulley travel will increase and it will be nec
essary to adjust the brake band nut to maintain
the correct 1/4 in. to 3/8 in. (6.5 mm to 9.5 mm)
gap. If the gap is greater than this in the disen
gaged position, the PTO belt may not declutch
adequately.
Every 100 hours of operation
check the pulley gap and adjust if necessary.
PTO Clutch Disengaged
*NOTE:
Factory preset dimensions. Reset to these
dimensions prior to adjustment if components have
been disassembled.
Knuckle
Joint
Clutch Spring Assembly
(Spring Uncompressed)
11 in.
*
(280 mm)
6 in.
*
(152.5 mm)
2-1/8 in.
*
(54 mm)
