OPERATION
SE10-4A/SE15-4A 03/09 Operation Section 4-46
© 2009 Alamo Group Inc.
OPERATION
15. TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy
Excessive Vibration Check gearbox bolts. Tighten if loose.
Check for loose nuts on Tighten if loose.
bladeholder and blades.
Check for bent output shaft. If Replace shaft if bent.
shaft is bent, oil will normally
leak from bottom seal.
Check to see if blades are Free blades so they swing.
swinging.
Check for even wear on each Weigh blades. Weight should be within
blade tip. Were both blades 1 oz. Always replace both blades.
changed at the same time?
Blade broken. Replace blades, in sets.
Blade carrier bent. Replace carrier.
Blade hub not properly seated Remove hub, check tapered spline
on shaft. shaft, clean and replace.
New blade or bolts matched with Replace blades or bolts in sets.
worn blade or bolts.
Drivelines not phased correctly. Replace driveline.
Implement & tractor yokes must
be in line.
Not Cutting Clean Blades dull. Sharpen or replace Blades.
Blade rotation incorrect. Use correct blade for carrier rotation.
Carrier RPM too low. Use correct PTO speed and check for
correct gearbox ratio.
Mower not level. Adjust machine.
Tractor tires mashing down grass. Move tires out of cutter overlap area.
Minimum 60” inside tires.
Ground speed too fast. Reduce ground speed
Blades locked back. Free blades.
Blades riding up due to blade bolt Replace blade bolts.
wear.
Blade Wears too Fast Cutting in sandy or rocky conditions Increase cutting height.
Soft “will fit” blades. Use genuine Rhino HT blades.
Gearbox Noisy Rough gears. Run in or change Gears.
Worn Bearing. Replace Bearing.
Gearbox Leaking Damaged Oil Seal. Replace Seal.