Section 8: Troubleshooting
12/18/19
AP-SC2560 & AP-SC2572 Skid Steer Rotary Cutter 326-836MK
39
Section 8: Troubleshooting
Troubleshooting Chart
Problem
Cause
Solution
Motor Oil Seal Leaking
Return line from motor has been pinched
or is collapsed.
Replace lower seal of motor. Check motor
return hose for kinks.
Case drain line is not properly connected.
Connect case drain line to the hydraulic
motor and skid steer reservoir.
Spindle Hub Seal Leaking
Seal is worn or torn.
Replace lower seal of motor and Spindle
Hub output shaft seal. Check motor return
hose for kinks.
Blades wearing excessively
Cutting on sandy ground.
Raise cutting height.
Contacting ground frequently.
Raise cutting height.
Blades coming loose
Blade bolts not tightened properly.
Use new nut and torque blade bolt nuts to
450 ft lbs.
Blade carrier becomes loose
Running loose in the past.
Replace gearbox output shaft and blade
carrier.
Blade carrier hardware not tight enough.
Tighten to specified torque.
Blade bolt holes worn
Blade hardware running loose.
Replace blades and blade bolts if worn.
Not maintaining tip speed.
Slow down to maintain tip speed.
Blades breaking
Hitting solid objects.
Thoroughly check the cutting area
BEFORE beginning to cut. Be alert during
cutting.
Blade Carrier bent
Hitting solid objects.
Avoid solid objects/Be alert. Replace blade
carrier.
Gauge wheel support failing
Lowering too fast.
Adjust rate of drop.
Hitting objects when turning.
Reduce speed on turns.
Excessive skid shoe wear
Cutting height not level.
Adjust deck height or replace.
Soil abrasive.
Raise cutting height.
Cutting too low.
Raise cutting height.
Excessive vibration
Locked blades.
Inspect and unlock blades.
Blades have unequal weight.
Replace blades as a PAIR.
Blade carrier bent.
Replace blade carrier.
Hitch lugs failing
Tilting hitch plate too far forward.
Do not tilt the hitch plate too far forward.
Do not put down pressure on hitch plate