Kubota ZD221-48 Workshop Manual page 249

ZD221, WSM
ROTARY MOWER
3. TIGHTENING TORQUES
Tightening torques of screws, bolts and nuts on the table below are especially specified.
(For general use screws, bolts and nuts: See page G-10.)
[RCK48S]
Item
N'm
kgf·m IbHt
Mower blade screw 103 to 117
10.5 to 12.0 76.0 to 86.7
Gear box screw 24 to 28
2.4 to 2.8 18 to 20
Gear box mounting screw
(for aluminum gear case)
40 to 44 4.0 to 4.5
29 to 32
Gear box mounting screw 48 to 55 4.9 to 5.7 36 to 41
Center pulley holder screw
79 to 90 8.0 to 9.2 58 to 66
Outer pulley mounting nut 167 to 186 17.0 to 19.0 123 to 137
Pulley holder mounting screw 78 to 90 7.9 to 9.2 58 to 66
W1012736
[RCK48P, RCK54P]
Mower blade screw 98.1 to 117 10.0 to 12.0 72.4 to 86.7
Gear box mounting screw
(Standard type I Reamer type)
79 to 90 8.0 to 9.2 58 to 66
Center pulley holder screw
(Standard type I Reamer type)
79 to 90 8.0 to 9.2 58 to 66
Outer pulley mounting nut
167 to 186
17.0 to 19.0
123 to 137
Pulley holder mounting screw 78 to 90 7.9 to 9.2 58 to 66
W1012736