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MAINTENANCE
RX60/72/84 03/09 Maintenance Section 5-11
© 2009 Alamo Group Inc.
MAINTENANCE
BLADE CARRIER INSTALLATION
Clean the splines on both the blade carrier and output shaft. Position carrier on the gearbox output shaft and
install special washer nut.
Tighten nut holding blade carrier to minimum 350 ft. pounds, strike the carrier near the hub several times with a
heavy hammer to seat the hub. Use a suitable spacer over the nut to prevent damage to the nut and threads.
Retighten the nut to 350 ft. pounds. Install cotter pin and spread.
Always recheck gearbox output shaft slotted blade carrier retaining nut torque after a few
hours operation.
Avoid personal injury. Do not work under cutter without support blocks to keep frame from
falling.
BLADE REMOVAL
Remove locknut from blade bolt through inspection hole in deck of mower near the gearbox to remove blades
for sharpening or replacement. See Figure MntP-R-0057. 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. Tighten lock nut to 300 ft. lbs.