Alamo SX15 Lawn Mower User Manual


 
MAINTENANCE
SX15 01/09 Maintenance Section 5-8
© 2009 Alamo Group Inc.
MAINTENANCE
NOTE: Replace Blades in pairs after no more than 1/2” notch wear!
BLADE REMOVAL
To remove blades for sharpening or replacement,
remove the cover plate on deck of cutter near gear
box. Remove lock nut from blade bolt. NOTE:
Inspect lock nut after removal and replace if threads
are damaged. Always replace nut when replacing
blade bolt. When installing blades be sure and
check blade bolt pivot diameter for wear. Replace
bolt if worn more than 1/4 inch at any point. See
Figure Mnt-R-0014. Install blade bolts with partially
worn side of bolt either toward or away from center.
Tighten locknut 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, PTO disengaged, and the
cutter blocked in the raised position.
BLADE CARRIER REMOVAL
Remove cotter pin and loosen slotted nut on gear box shaft. Loosen but do not remove the nut until the blade
carrier is loosened. Use a suitable two-jaw gear puller to pull carrier off tapered gear box shaft. If gear puller is
not available use long bar inserted through blade bolt access hole with end against rotor bar. Strike opposite
end of bar with sledge hammer. Rotate blade carrier 180 degrees and repeat process.
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN,
WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR
OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE
SERIOUS INJURY FROM THROWN BLADES.
(SGM-10)