Twose MAXICUT 280, Руководство оператора

Страница: 41 / 54

24
BLADE REMOVAL
To remove blades for sharpening or replacement, remove the cover plate on the deck of
the Mower near the gearbox and remove the lock nut from the blade bolt. NOTE:
Inspect
lock nut after removal and replace if threads are damaged. Always replace lock nut when
replacing blade bolt.
When installing or replacing blades ALWAYS check the blade bolt pivot diameter for wear
and replace if it is worn more than ¼”
(6mm) at any point. Install blade bolts with ‘unworn’
portion of blade bearing area towards centre of carrier. Tighten lock nut to 350 ft.lbs.
(475Nm).
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, with the PTO disengaged and the Mower blocked in the raised position.
BLADE CARRIER REMOVAL
Remove cotter pin and loosen slotted nut on gearbox shaft. Loosen but do not remove the
nut until the blade carrier is loosened. Use a suitable 2-jaw ‘gear puller’ to pull the carrier
off the tapered gearbox shaft. If gear puller is not available a long bar can be utilized by
inserting it through blade bolt access hole with the end against rotor bar. Strike opposite
end of bar with a sledgehammer. Rotate blade carrier through 180 degrees and repeat
process.
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 and nut.
Tighten nut holding blade carrier to minimum 450 ft.lbs.
(610Nm) 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 its thread. Retighten the nut to 450 ft.lbs.
(610Nm) .
Install cotter pin and spread its ends.
IMPORTANT: Always rechecks gearbox output shaft slotted blade carrier retaining nut
torque after a few hours of operation.
Avoid personal injury. Do not attempt to work under a Mower without suitable
support blocks to keep the frame from falling.