Troubleshooting Common Cutting Problems - Ferris IS600 Series Operator's Manual

Problem: Engine exhaust is black.
Cause
Dirty air filter.
Air in the fuel system.
Problem: Engine runs but unit will not drive.
Cause
Hydraulic pump dump valve(s) in
"open" position.
Belt is broken.
Drive belt slips.
Brake is not fully released.
Problem: Unit drive belt slips.
Cause
Pulleys or belt greasy or oily.
Belt tension is too loose.
Belt stretched or worn.
Problem: Parking brake will not hold.
Cause
Brake is incorrectly adjusted.
Brake pads worn.
Problem: Unit steers or handles poorly.
Cause
Steering linkage is loose.
Improper tire inflation.
Problem: Engine RPMs cannot be changed.
Cause
Diesel particulate filter needs to be
cleaned.
Troubleshooting the Mower
Problem: Mower Deck will not raise.
Cause
Deck Lift Linkage not properly
attached or damaged.
Leak in the hydraulic system.
Problem: Engine stalls easily
with the mower deck engaged.
Cause
Engine speed too slow.
Ground speed too fast.
Cutting height set too low.
Discharge chute jamming with cut
grass.
Problem: Excessive mower vibration.
Cause
54
Remedy
Replace air filter. See the engine
manufacturer's operator's manual.
Prime the fuel system.
Remedy
Turn dump valve(s) clockwise
to close. Torque to 80-120 in-lbs
(9-13,5 Nm).
See Pump Drive Belt Replacement.
See problem and cause below.
See authorized service dealer.
Remedy
Clean as required.
Adjust spring tension. See Pump
Drive Belt Replacement.
Replace belt.
Remedy
See Parking Brake Adjustment.
Replace with new brake pads.
Remedy
Check and tighten any loose
connections.
See Checking Tire Pressures.
Remedy
See Regen Process (Clean Diesel
Particulate Filter).
Remedy
See authorized service dealer.
See authorized service dealer.
Remedy
See engine speed to full throttle.
Decrease ground speed.
Cut tall grass at a higher cutting
height during the first pass and then
lower deck and cut again.
Cut grass with discharge pointing
towards previously cut area.
Remedy
Problem: Excessive mower vibration.
Blade mounting bolts are loose.
Mower blades, spindles, or pulleys
are bent.
Mower blades are out of balance.
Belt installed incorrectly.
Problem: Excessive belt wear or breakage.
Cause
Bent or rough pulleys.
Using incorrect belt.
Incorrect belt tension.
Problem: Mower drive belt slips or fails to drive.
Cause
Incorrect belt tension.
Drive belt is broken.
Problem: Mower deck does not engage.
Cause
Electrical wiring damage.
Battery voltage too low.
Problem: Mower disengages during operation and
will not re-engage (See Deck Shut Down Module.
Cause
Unit has overheated.
Unit has lost oil pressure.
Troubleshooting Common Cutting
Problems
Problem: Streaking
Streaking is when thin strips of uncut grass are left behind the mower.
Streaking is usually caused by operator error or poor blade maintenance.
Cause
Blades are not sharp.
Blades are worn down too far.
Engine speed is too slow.
Ground speed is too fast.
Deck is plugged with grass.
Not overlapping cutting rows enough. Overlap your cutting rows
Not overlapping enough when
turning.
Tighten the blade mounting bolts to
120 ft-lbs (163 Nm).
Check and replace as necessary.
Remove, sharpen, and balance
blades. See Servicing the Mower
Blades.
Install belt correctly.
Remedy
Repair or replace.
Replace with correct belt.
Adjust the correct tension.
Remedy
Adjust to the correct belt tension.
Replace with a new belt.
Remedy
Locate and repair damaged wire.
Recharge battery and check
alternator. See Battery Service.
Remedy
Allow the engine to cool, disengage
the mower deck, and then re-engage
the mower deck.
Shut the unit down and see
authorized service dealer.
Remedy
Sharpen your blades.
Replace your blades.
Always mow at full throttle.
Slow down.
Clean out the mower.
When turning your effective cutting
width decreases–overlap more when
turning.
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