S-13
ROTARY MOWER
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM
Gear Box and Mower Belt
1. Loosen the belt tension adjusting nuts (5), and remove the
tension spring (4).
2. Unscrew the gear box mounting screws (2), and remove the
mower belt (3).
3. Pull out the gear box (1) upward.
(When reassembling)
W1015617
Disassembling Gear Box
1. Unscrew the drain plug, and drain the gear box oil.
2. Remove the center pulley (23) with a puller, and remove the
feather key (24) on the bevel gear shaft.
3. Remove the gear box caps (7), (18).
4. Remove the oil seal (1), external snap ring (2) and shim (3).
5. Remove the screw (17), washer (16) and tap out the pinion shaft
(5) with ball bearing (4).
6. Remove the 19T bevel gear (6) and pinion shaft collar (12).
7. Remove the internal snap ring (15) and shims (14).
8. Remove the ball bearing (13).
9. Remove the external snap ring (8), and draw out the bevel gear
shaft (22).
10.Remove the 16T bevel gear (9) with ball bearing (10).
(When reassembling)
• Replace the oil seals (1), (20) and gear box caps (7), (18) with
new ones.
• Check the backlash and turning torque.
If not proper, adjust with the shims (3), (11) and (14). (See page
S-16, 17)
W1018511
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
Tension spring length
(L)
Factory
spec.
RC60-
24BR
160.0 mm
6.3 in.
RC60-
27BR
245.0 mm
9.7 in.
(1) Gear Box
(2) Gear Box Mounting Screw
(3) Mower Belt
(4) Tension Spring
(5) Belt Tension Adjusting Nut
(A) RC60-24BR
(B) RC60-27BR
(1) Oil Seal
(2) Internal Snap Ring
(3) Shim
(4) Ball Bearing
(5) Pinion Shaft
(6) 19T Bevel Gear
(7) Gear Box Cap
(8) External Snap Ring
(9) 16T Bevel Gear
(10) Ball Bearing
(11) Shim
(12) Pinion Shaft Collar
(13) Ball Bearing
(14) Shim
(15) Internal Snap Ring
(16) Washer
(17) Screw
(18) Gear Box Cap
(19) Gear Box
(20) Oil Seal
(20) External Snap Ring
(21) Bevel Gear Shaft
(23) Center Pulley
(24) Feather Key
KiSC issued 11, 2006 A
