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Section 8: Troubleshooting
Section 8: Troubleshooting
Problem
Oil seal leaking
Driveline yoke or cross failing
Slip Clutches slip even with a
light load
Bent driveline shaft
(Note: Shaft should be repaired or
replaced if bent)
Driveline shaft
telescoping tube failing
Driveline shaft telescoping tube
wearing
Blades lock-up
Blades wearing excessively
Blades coming loose
Blades breaking
Loose blade carrier
Blade carrier bent
Excessive side skid wear
Excessive vibration
Wing cylinder movement too slow
Wing decks are not staying level
78
RCB5715 & RCBM5715 Rotary Cutter 337-046M
Table of Contents
Troubleshooting Chart
Cause
Gearbox overfilled
Seals damaged
Grass or wire wrapped on shaft
in seal area
Clutch is froze
Shock load
Needs lubrication
Scalping the ground
Clutch is not properly adjusted
Clutch plates are worn out
Foreign object caught between
clutch plates
Contacting frame
Contacting drawbar
Bottoming out
Binding up
Shock load
Needs lubrication
Blades locked together
(overlapped) when wings were
folded-up to transport position
Tractor has instant on power
take-off
Tractor has Instant off power
take-off
Cutting on sandy ground
Contacting ground frequently
Blades not
tightened properly
Over speeding power take-off
Hitting solid objects
Blade carrier hardware not
tight
Running loose in the past
Hitting solid objects
Soil abrasive
Cutting too low
Hitting solid objects
Driveline bent
Blade carrier bent
Blade broken
Blade will not swing
High torque start-up or hitting
solid objects.
Blades have unequal weight
Orifice is plugged
Hinge and/or lift cylinders may
be out of time or phase
Solution
Drain oil level with fill hole or to full mark on dipstick.
Replace seals.
Clean off wrapped material and check seal areas daily.
Slip clutches per instructions under "Lubrication
Points" on page 67.
Avoid hitting solid objects.
Lubricate every 8 hours.
Raise cutting height.
Adjust clutch per instructions under "Lubrication
Points" on page 67.
Replace clutch plates.
Remove foreign object.
Reduce lift height in transport position.
Reposition drawbar.
Shorten driveline shaft.
Not lubricating enough.
Avoid hitting solid objects.
Lubricate every 8 hours of operation.
Use pry bar or other tool to separate cutting blades
before unfolding the wings.
Engage power take-off at low rpm and then slowly
increase engine speed to full power take-off speed.
See "Engage Blades" on page
Disengage blades at low rpm or change to a driveline
with over-running clutch.
Raise cutting height. Change to low lift blades.
Raise cutting height.
Tighten blade hardware, refer to "Cutter Blades" on
page
59.
Operate cutter at proper power take-off speed.
Avoid hitting solid objects.
Tighten shaft nut to specified torque.
Replace gearbox bearings and / or shaft.
Avoid hitting solid objects.
Adjust cutter height.
Raise cutting height.
Inspect area before cutting. Do not hit solid objects.
Replace driveline or distribution shaft.
Replace blade carrier.
Replace blade.
Inspect and unlock blades.
Disassemble and inspect driveline for incorrectly
located needles or damaged bearing cap.
Replace each pair of blades on the affected carrier.
Remove elbow fitting and unplug orifice.
Axle bushings may need replacing.
Rephasing may be required.
See "Rephasing Lift Cylinders" on page
46.
46.
7/8/20
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