Servis-Rhino BOOM ROTARY MOWER 2160 - Manual (Page 171)

MAINTENANCE
2160 06/11 Maintenance Section 5-11
©2011 Alamo Group Inc.
MAINTENANCE
BLADE SHARPENING
Always sharpen both blades at same time to maintain balance. Follow original sharpening pattern as shown in
FIGURE Mnt-R-0008. Always sharpen blades by grinding. DO NOT heat and pound out edge. Do not
sharpen blade to a razor edge, but leave a 1/16" blunt edge. Do not sharpen back side of blade.
Avoid personal injury. Always block the cutter up to prevent if from falling when the blades
and/or carrier are being serviced.
Avoid personal injury. Always wear safety glasses and face protection when grinding blades.
Do not heat, weld or hard surface blades as this can alter material strength causing blades
to fail in a hazardous manner that could cause injury.
BLADE REMOVAL
To remove blades for sharpening or replacement, through the blade bar access hole on deck of mower near
Hyd Motor. Remove lock nut from blade bolt.
NOTE: Inspect locknut after removal and replace if threads are damaged. Always replace when nut when
replacing blade bolt. When installing blades, be sure and check blade bolt pivot diameter for wear. Replace bolt
if worn more than 1/32 inch at any point. Install blade bolts with worn side of bolt away from the center of the
blade carrier. Tighten lock nut to 300 ft./lbs.
Avoid personal injury. Blade and/or blade carrier removal should be done only with the
tractor engine shut off, key removed, in neutral, parking brake on, and PTO disengaged and
the mower blocked in the raised position.
BLADE REMOVAL
To remove blades for sharpening or replacement, through the blade bar access hole on deck of mower near
Hyd Motor. Remove lock nut from blade bolt.
NOTE: Inspect locknut after removal and replace if threads are damaged. Always replace when nut when
replacing blade bolt. When installing blades, be sure and check blade bolt pivot diameter for wear. Replace bolt
if worn more than 1/32 inch at any point. Install blade bolts with worn side of bolt away from the center of the
blade carrier. Tighten lock nut to 300 ft./lbs.
Avoid personal injury. Blade and/or blade carrier removal should be done only with the
tractor engine shut off, key removed, in neutral, parking brake on, and PTO disengaged and
the mower blocked in the raised position.
BLADE MAINTENANCE