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16. TROUBLESHOOTING GUIDE
Problem
Not Cutting Clean
Breaking Blade Bolts
Cutting Too High
Mower Vibrates
Mower Windrowing
Blades Wear Fast
A60B/A72B 02/07
©2007 Alamo Group Inc.
OPERATION
Possible Cause
Blades dull.
blade rotation incorrect.
Carrier RPM too low.
Mower not leveled.
Tires mashing down grass.
Ground speed too fast.
Blades locked back.
Blades riding up due to Blade.
Bolt wear.
Blades bent up.
Operating with loose Blade Bolts.
Worn Blade Bolt.
Blades bent up.
Blade Carrier bent.
Blades on upside down.
Blade locked back.
Drivelines not phased.
Blade broken.
Blade Carrier bent.
Blade Hub not properly seated
on Shaft.
New Blade matched with worn Blade. Replace Blades in sets.
Output Shaft Bent.
Cutting heavy material.
Cutting in sandy or rocky conditions
Blades too soft.
Operation Section 4-40
Remedy
Sharpen or replace Blades.
Use correct Blade for Carrier.
Use Fan Blades in grass.
Increase PTO speed.
Adjust machine level (in very heavy
weeds, 1/2" to 1" low in front).
Use offset Adapter to move Mower to
the left.
Reduce ground speed.
Free blades.
Replace Blade Bolts.
Replace Blades.
Tighten Blade Bolts to 300 ft./lbs.
(Right Hand Threads).
Replace Bolt.
Replace Blades.
Straighten or replace Blade Carrier.
Turn Blades right side up and tighten.
Loosen locked Blade.
Replace Driveline.
Replace Blades in sets.
Repair or replace Carrier.
Remove Hub, check Key and Shaft,
and replace or seat properly.
Replace Output Shaft.
Raise Mower and reduce ground
speed.
Increase cutting height.
Replace Blades with hardened,
high- quality, Rhino Blades from the
manufacturer.
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