Installation Instructions
M MOWER
B1700·B21 00·B2400 WSM, 11770
Gear box mounting
78.5
to
88.2 N'm
Tightening
torque
8.0
to
9.0
kgf'm
screw
57.9
to
65.1
ft-Ibs
Blade
Boss
1.
Remove the external snap ring (2).
2.
Remove the blade
boss
(1).
Gear Box and
Mower
Belt
1.
Turn over
the
mower.
2.
Remove
the
tension spri ng (4).
3.
Unscrew
the
left
and
right
gear box
mounting
screws (3),
(S)
and remove
the
gear box
(2)
from
the
mower
deck.
4.
Remove the
mower
belt
(1).
(When reassembling)
• Install
the
reamer screws
(3)
at
their
original
positions
as
shown in the figure.
(4)
Tension Spring
(5)
Gear
Box
Mounting
Screw
(2) External Snap
Ring
(1)
Blade
Boss
(1)
Mower
Belt
(2) Gear
Box
(3) Gear
Box
Mounting Screw
(Reamer Screw)
B177FM44
B177FM43
B177FM45
M-S18