Section 5: Maintenance & Lubrication
12/18/19
AP-SC2560 & AP-SC2572 Skid Steer Rotary Cutter 326-836MK
31
Blade Rotation & Blade Bolt Access Cover Location
Figure 5-1
Remove cutting blades and sharpen or replace as
follows:
1. Place skid steer in park and/or set brakes, shut
engine off and remove ignition key.
2. Always disconnect hydraulics from skid steer and
secure cutter deck in the up position with solid
supports before servicing underside of cutter.
3.
Refer to Figure 5-1 on page 31:
blade bolt cover.
4.
Refer to
bolt (#2) until in alignment with access hole.
5. Unscrew locknut (#5) to remove cutting blade (#2).
Blade bolt (#1) is keyed and will not turn freely.
6. Both blades should be sharpened at the same angle
as the original cutting edge and must be replaced or
re-ground at the same time to maintain proper
balance in the cutting unit. The following precautions
should be taken when sharpening blades:
a. Do not remove more material than necessary.
b. Do not heat and pound out a cutting edge.
c. Do not grind blades to a razor edge. Leave a blunt
cutting edge approximately 1/16 thick.
d. Always grind cutting edge so end of blade remains
square to cutting edge and not rounded.
e. Do not sharpen back side of blade.
f. Both blades should weigh the same with not more
than 1 1/2 oz. difference. Unbalanced blades will
cause excessive vibration which can damage
gearbox bearings and create structural cracks.
7.
Refer to
Carefully check cutting edges of
blades in relation to blade carrier rotation to ensure
correct blade placement. Blade rotation is clockwise
with cutting edge leading. Airfoil (lift) must be
oriented towards the top of the deck.
39165
Clockwise
Blade Rotation
Blade Bolt
Access Cover
Blade Rotation
Decal 848-416C
Cutter Blade Assembly
Figure 5-2
Refer to Figure 5-2:
WARNING
!
To avoid serious injury or death:
A locknut that has been removed can lose its thread locking
properties. Reusing a used locknut can result in a thrown
blade. Always use a new locknut when installing blades.
8. Insert blade bolt (#1) through blade (#2),
dishpan (#3) and flat washer (#4). Secure blade with
a new locknut (#5).
9. Torque locknut (#5) to 450 ft. lbs.
10.
Refer to Figure 5-1:
cover.
11. If replacing dishpan (#3) shown in Figure 5-2, nut on
gearbox output shaft should be torqued to 450 ft-lbs.
minimum and secured with a cotter pin with both
cotter pin legs bent opposite directions around the
nut.
24590
Kubota Cutter Blade Parts
Item Part No.
Part Description
318-586A BLADE BOLT KIT (Contains #’s 1, 4, & 5)
1
802-277C BLADE BOLT 1 1/8-12 x 3 7/16 WITH KEY
2
820-112C SC2560 CUTTER BLADE 1/2 x 4 x 25 CW
2
820-249C SC2572 CUTTER BLADE 1/2 x 4 x 29 CW
3
316-124H WELDMENT DISHPAN SC2560
3
312-811H WELDMENT DISHPAN SC2572
4
804-147C WASHER FLAT 1 HARD ASTMF436
5
803-170C NUT HEX TOP LOCK 1 1/8-12 PLATE
Use 1-11/16" Socket
Wrench On Blade Nut (#5)
IMPORTANT:
Examine blade bolts, washers, and
nuts for excessive wear and replace if worn.