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Section 8: Troubleshooting
10/21/15
RC4015 and RCM4015 Series 2 S/N 944961+ Rotary Cutters 330-845M
Table of Contents
Section 8: Troubleshooting
Troubleshooting Chart
Problem Cause Solution
Oil seal leaking Gearbox overfilled Drain oil level with fill hole or to full mark on dipstick.
Seals damaged Replace seals.
Grass or wire wrapped on shaft
in seal area
Clean off wrapped material and check seal areas daily.
Driveline yoke or cross failing Clutch is froze Slip clutches per instructions under “Drivelines With Slip
Clutches” on page 40.
Shock load Avoid hitting solid objects.
Needs lubrication Lubricate every 8 hours.
Slip Clutches slip even with a
light load
Scalping the ground Raise cutting height.
Clutch is not properly adjusted Adjust clutch per instructions under “Drivelines With Slip
Clutches” on page 40.
Clutch plates are worn out Replace clutch plates.
Foreign object caught between
clutch plates
Remove foreign object.
Bent driveline shaft
(Note: Shaft should be repaired or
replaced if bent)
Contacting frame Reduce lift height in transport position.
Contacting drawbar Reposition drawbar.
Bottoming out Shorten driveline shaft.
Binding up Not lubricating enough.
Driveline shaft
telescoping tube failing
Shock load Avoid hitting solid objects.
Driveline shaft telescoping tube
wearing
Needs lubrication Lubricate every 20 hours of operation.
Blades Lock Up Blades locked together
(overlapped) when wings were
raised to transport position
Use pry bar or other tool to separate cutting blades
before lowering wings.
Tractor has instant on PTO Engage PTO at low RPMs and then slowly increase
engine speed to full PTO speed.
See “Engage Blades” on page 31.
Tractor has Instant off PTO Decrease engine speed slowly to an idle and then
disengage PTO.
See “Disengage Blades” on page 32.
Blades wearing excessively Cutting on sandy ground Raise cutting height.
Contacting ground frequently Raise cutting height.
Blades coming loose Blades not
tightened properly
Tighten blade hardware, refer to
“Cutter Blade
Maintenance” on page 38.
Over speeding PTO Operate cutter at proper PTO speed.
Blades breaking Hitting solid objects Avoid hitting solid objects.
Loose blade carrier Blade carrier hardware not tight Tighten shaft nut to specified torque.
Running loose in the past Replace gearbox bearings and / or shaft.
Blade carrier bent Hitting solid objects Avoid hitting solid objects.
Excessive side skid wear Soil abrasive Adjust cutter height.
Cutting too low Raise cutting height.
Excessive vibration Hitting solid objects Inspect area before cutting. Do not hit solid objects.
Driveline bent Replace driveline or distribution shaft.
Blade carrier bent Replace blade carrier.
Blade broken Replace blade.
Blade will not swing Inspect and unlock blades.
High torque start-up or hitting
solid objects.
Disassemble and inspect driveline for incorrectly
located needles or damaged bearing cap.
Blades have unequal weight Replace each pair of blades on affected carrier.
Wing cylinder movement too slow Orifice is plugged Remove elbow fitting and unplug orifice.