S-8
ROTARY MOWER
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM
Gear Box and Mower Belt
1. Turn over the mower.
2. Remove the mower belt (1) from the tension pulley (5).
3. Unscrew the left and right gear box mounting screws (3), (4) and
remove the gear box (2) from the mower deck.
(When reassembling)
• Install the reamer screws (3) at their original positions as shown
in the figure.
W1012961
Disassembling Gear Box
1. Unscrew the drain plug, and drain gear box oil.
2. Remove the center pulley (19) with a puller, and remove the
feather key (20) on the bevel gear shaft (18).
3. Remove the gear box caps (6), (7).
4. Remove the oil seal (12), internal snap ring (13) and shim (14).
5. Tap out the pinion shaft (16) with the ball bearing (15), and
remove the bevel gear (1).
6. Remove the internal snap ring (5), shim (4) and ball bearing (3).
7. Remove the external snap ring (8), and draw out the bevel gear
shaft (18).
8. Remove the bevel gear (9), ball bearing (10), shim (11) and oil
seal (17).
(When reassembling)
• Replace the oil seals (12), (17) and gear box caps (6), (7) with
new ones.
• Check the backlash and turning torque.
If not proper, adjust with the shims (5), (11), (14).
(See page S-16, 17)
W1013296
Tightening torque
Gear box mounting screw
77.6 to 90.2 N·m
8.0 to 9.2 kgf·m
57.1 to 66.5 ft-lbs
(1) Mower Belt
(2) Gear Box
(3) Gear Box Mounting Screw
(Reamer Screw)
(4) Gear Box Mounting Screw
(5) Tension Pulley
(6) Tension Spring
(1) 19T Bevel Gear (RCK60-24B-EC,
RCK60-27B-EC)
21T Bevel Gear (RCK54-24B-EC)
(2) Gear Box
(3) Ball Bearing
(4) Shim
(5) Internal Snap Ring
(6) Gear Box Cap
(7) Gear Box Cap
(8) External Snap Ring
(9) 16T Bevel Gear
(10) Ball Bearing
(11) Shim
(12) Oil Seal
(13) Internal Snap Ring
(14) Shim
(15) Ball Bearing
(16) Pinion Shaft
(17) Oil Seal
(18) Bevel Gear Shaft
(19) Center Pulley
(20) Feather Key
KiSC issued 11, 2006 A
