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MAINTENANCE
Side and Rear Flail Maintenance Section 4-27
©2011 Alamo Group Inc.
MAINTENANCE
50” FLAIL KNIFE BLADE REPLACEMENT
1. If knives are damaged or badly worn, they will need to be replaced as a set. Replacing a single knife
can cause severe knife can cause severe vibration and possible damage to the mower. The knife
should not
be welded on for any reason.
2. Always replace the knife bolts when replacing the knives. DO NOT REUSE THE KNIFE BOLTS OR
NUTS.
3. Assemble knives, bushings, bolts and nuts as shown in part section of the manual.
4. Install the locking hex nut so that the flat face of the nut is towards the knife.
5. Apply loctite “271” or equivalent to threads.
6. Torque nut to 50 ft. lbs. Knife must swing freely.
DO NOT re-use the locking hex nuts for mounting the knives. If hex nut becomes
loose, or required removal for knife replacement or any other reason, it must be
discarded and replaced with a new nut.
63” BOOM FLAIL KNIFE REPLACEMENT
1. If knives are damaged or badly worn, they will need to be replaced as a set. Replacing a single knife
can cause severe vibration and possible damage to the mower.
2. Assemble knives, clevis, bolts and nuts as shown in part section of manual.
3. Install locking hex nut so that the flat face of nut is towards the knife.
4. Apply loctite “271” or equivalent to threads.
5. Torque nut to 35 FT. LBS. Knife must swing freely.
DO NOT re-use the locking hex nuts for mounting the knives. If hex nut become
loose, or require removal for knife replacement or any other reason, they must be
discarded and replaced with new nuts.
Knives should not be welded on for any reason.
STANDARD OR HEAVY DUTY SIDE OR REAR FLAIL KNIFE
REPLACEMENT
1. If knives are damaged or badly worn, they will need to be replaced as a set. Replacing a single knife
can cause severe vibration and possible damage to the mower.
2. Assemble knives, clevis, bolts and nuts as shown in parts manual.
3. Install locking hex nut so that the flat face of nut is towards the knife.
4. Apply loctite “271” or equivalent to threads.
5. Torque nut to 35 FT. LBS. Knife must swing freely.
DO NOT re-use the locking hex nuts for mounting the knives. If hex nut become loose, or
require removal for knife replacement or any other reason, they must be discarded and
replaced with new nuts.
Knives should not be welded on for any reason.