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.

 

SX15 01/09

Operation Section 4-45

© 2009 Alamo Group Inc.

OPERATION

Page 137
Image 137
Alamo SX15 manual Troubleshooting Guide, Problem Possible Cause Remedy