Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
ROTARY MOWER
5. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
3GFABABMP023A
3GFABABMP024A
Checking Mower Blade
1. Check the cutting edge of mower blade.
2. Sharpen the cutting edges, if the mower blades are as shown in
figure (2).
3. Replace the mower blades, ifthey are as shown in figure (3) .
• IMPORTANT
• Never forget
to set the dust cover, cup washer(s) and lock
washer (RCK54-23BX, RCK60B-23BX), when reassembling
the mower blades. (See page 7-520.)
• NOTE
• To sharpen
the mower blades by yourself, clamp the mower
blade securely
in a vise and use a large mill file along the
original bevel.
• To balance
the mower blade, place a small rod through the
center hole and check
to see if the blade balance evenly.
File heavy side
of the blade until it balance out even.
(1) New Blade (3) Cracked Blade
(2) Worn Blade
W1011041
Checking Mower Belt
1. Check to see the mower belt.
2. Replace the mower belt with a new one, if there is found surface
split
at more than 3 positions.
(When replacing mower belt)
1. Dismount the mower from the tractor.
2. Remove the left and right hand belt cover from the mower deck.
3. Clean around the gear box.
4. Remove the right hand bracket (3) which mounts the gear box to
the mower deck.
5. Remove the mower belt (2) from the tension pulley (1). Slip the
mower belt over the top
of the gear box.
6. To install a new belt, reverse the above procedure.
TIghtening torque
Gear box bracket
RH
mounting bolt and nut
77.4 to 90.2 N'm
7.9 to 9.2 kgf·m
57.1 to 66.5 ft-Ibs
Gear box bracket
RH
mounting screw
(for aluminum gear case)
39.2 to 44.1 N'm
4.0
to 4.5 kgf-m
28.9 to 32.5 ft-Ibs
• IMPORTANT
•
After setting the gear box bracket mounting screws on the
deck
without tightening. then mount the other screws on the
gear box. And finally tighten them.
(1) Tension Pulley
(3) Gear Box Bracket (Right)
(2) Mower Belt
W1011180
7-S19