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MAINTENANCE
Saber Maintenance Section 4-21
©2011 Alamo Group Inc.
MAINTENANCE
ROTARY KNIFE REPLACEMENT
1. Be sure you have a complete matching set of new knives for replacement.
2. Remove knives and inspect holes for damage. Also watch for cracks in the disk around the holes.
3. Lube threads with anti-seize, motor oil or grease. Install bolts through knife and disk from bottom side
of disk. Install new self-locking nuts and torque them to 800 ft. lbs.
4. The knives should swing freely to absorb shocks from impact when striking objects.
WHEN CUTTING HEAVY BRUSH, KNIFE BOLTS SHOULD BE INSPECTED HOURLY
AND RETORQUED TO 1070 DRY OR 800 OILED FT. LBS.
REPLACEMENT OF ROTARY DISK
Failure to follow the following warnings and instructions may result in serious injury
or damage to the equipment or property!
1. The bolts that attach the disk to the spindle must be grade 8. These 5/8 inch bolts are to be torqued to
204 dry or 184 oiled ft. lbs.
2. A thread locking agent may be applied to threads of all mounting bolts before they are installed.
3. Disks must be inspected daily for hairline cracks between spindle mounting bolts or around the
knife mounting bolts. These cracks indicate metal fatigue caused by severe abuse. If cracks are
present the disk must be replaced.
4. Inspect the disk mounting bolts daily when checking tightness of knife mounting bolts. If a disk
mounting bolt is loose, it must be removed, threads cleaned, fresh thread locking agent applied, and
tightened to proper torque value.
5. If a knife mounting bolt is loose, the self locking nut must be replaced as a safety precaution. Lubricate
threads with anti-seize, grease or motor oil. Install bolts through knife and disk from bottom side of
disk. Install self locking nuts and torque them to 800 ft. lbs.