Alamo BUSH HOG RMB 1660 Operator's Manual page 191

Flail Axe Blade Bolt Inspection
Inspect Blade Bolts daily for wear or damage as follows:
Inspect the Blade Bolt daily for abnormal wear. REPLACE ALL BLADE BOLTS on the
carrier IMMEDIATELY if any bolts have:
• Visible cracks, or
• If the blade bolt is worn or any recessed area is visible on the bolt, or
• If Blade Bolt has gouges or chipped areas, or
• If Bushing fits loose in the Rotor Shaft.
Failure to replace abnormally worn bolts or bushings may lead to catastrophic failure of the blades and
ejection of the broken part which may cause serious bodily injury or death.
Always replace Blade Bolts with new bolts and new bushings whenever replacing the Blades. To tighten bolts
and nuts, first apply thread lock to nut. Make sure to tighten bolts and nuts just enough to allow the blades to
swing freely, and not bend the cuttershaft lugs. If cuttershaft lugs are bent together because of over tightening
the blades will not swing freely.
BLADES
Check the Blades for cracks and wear and Blade Bolts for tightness, daily. Blades should be replaced when
they are worn excessively, bent, deformed, or out of balance.
Blades should always be replaced in pairs. Blades of different weights can cause serious
imbalance and damage to the machine and personnel. When replacing blades, take care to
replace the blade bolts, nuts, and washers.
Make sure the mower blades are turning clockwise when looking
down from the top of the mower. Follow the color coding on the
hydraulic hoses and fittings to make sure the motor and hydraulic
hoses are assembled properly. Connect the red hose connection only
to red fitting. Connect the blue hose connection only to the blue
fitting. The blade rotation on the leading edge of the mower should
discharge the cut material away from the tractor and operator.
RMB 1660 01/22
© 2022 Alamo Group Inc.
MAINTENANCE
OPS-U-0043
Maintenance Section 5-17