Installation Instructions

B1700·B21 00·B2400 WSM, 11770
M MOWER
Disassembling Gear Box
1. Unscrew the drain plug (18), and drain gear box oil.
2. Remove the center pulley (20) with a puller, and remove the
feather key
(22) on the bevel gear shaft.
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
21T bevel gear (or 19T 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
(21).
8. Remove the 16T bevel gear (9), ball bearing (10), shim (11)
and oil seal (19).
Shim
Oil Seal
Internal Snap Ring
Shim
Ball Bearing
Pinion Shaft
Oil Filler Plug
Drain Plug
Oil Seal
Center Pulley
Bevel Gear
Shaft
Feather Key
(11 )
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(When reassembling)
• Replace the oil seals (12), (19) and gear box caps (6), (7) with
new ones.
• Check the backlash and
turning torque.
If not proper, adjust with the shims (4), (11), (14).
(See page M-S21, 22.)
(1) 21 T Bevel Gear (RC54-24B)
19T Bevel Gear (RC60-24B)
(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
(RC54-24B'RC60-24B)
(10) Ball Bearing
M-S19