Section 7: Troubleshooting - Land Pride DM3705 Series Operator's Manual

Section 7: Troubleshooting

Section 7: Troubleshooting
Problem
Not cutting clean
Streaking conditions in
swath
Gearbox noisy
Gearbox leaking
Uneven stubble
Stubble too long
Soil built up in front of
cutter bar
Machine breaking back
too easily
9/15/06
Table of Contents
Cause
Dull Blades.
Mower not level.
Ground speed too fast.
Blades locked back.
Blade on wrong for rotation of disc
Conditions too wet for cutting.
Dull blades.
Wet mud build-up between skid shoes.
Blade on wrong for rotation of disc
Rough gears.
Worn bearing.
Damaged oil seal.
Bent shaft.
Oil seal not sealing in housing.
Oil level too high.
Gasket damaged.
Bolts loose.
Too much tilt on cutter bar.
Low PTO speed.
Blades not installed correctly.
Low disc speed.
Dull or broken blades.
3-point arms not level causing float mechanism to
not function properly
Incorrect angle on cutter bar.
Insufficient cutter bar down pressure.
3-point arms not level causing float mechanism to
not function properly
Very wet conditions
Too much cutter bar down pressure
3-point arms not level causing float mechanism to
not function properly
Insufficient tension on break-away spring washers. Tighten break-away spring.
3-point arms not level causing float mechanism to
not function properly
Belleville washers flattened
Solution
Replace blades.
Adjust machine.
Reduce ground speed.
Free blades.
Change blade pairs for correct rotation blades
Allow grass to dry before cutting. Slow ground
speed of tractor but keep engine running at full
PTO rpm.
Sharpen or replace blades.
Clean area between skids. Raise cutting height.
Change blade pairs for correct rotation blades
Run in or gear failure.
Replace bearing.
Replace seal.
Replace oil seal and shaft.
Replace seal or use a sealant on OD of seal.
Drain oil to proper level.
Replace gasket.
Tighten bolts.
Reduce tilt.
Increase engine speed to run PTO at 540 rpm.
Make sure that arrow on knife upper face is
pointing in the direction of rotation of the disc.
Check belt for correct tension.
Replace blades.
Level three point arms
Change cutter bar angle using tractor top link.
Adjust compensating spring tension.
Level three point arms
Adjust main frame height by shortening safety
chain as necessary.
Adjust compensating spring tension.
Level three point arms
Level three point arms
Replace with new Belleville washer part no.
DM3705, DM3706, and DM3707 Series Disc Mowers 327-083M 27