2-S4
ZD21N-EC, ZD21-EC, ZD28-EC, WSM
TRANSAXLE
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-9.)
W1012736
Item N·m kgf·m ft-lbs
Motion control lever mounting bolt and nut
Hydrostatic transmission mounting screw
Rear wheel mounting nut
Universal joint mounting screw
Transaxle and rear axle case mounting screw
M12 7T Aluminum
M10 7T Aluminum
M12 7T
M10 7T
Hydraulic pump housing mounting screw
Center cover mounting screw
Center section mounting hex. socket head screw
Check and high pressure relief valve plug
17.7 to 20.6
39.3 to 44.1
48.0 to 56.0
26.0 to 28.0
62.7 to 72.5
39.3 to 44.1
77.5 to 90.2
48.0 to 55.9
17.7 to 20.5
39.3 to 44.1
17.7 to 20.5
24.5 to 34.3
1.8 to 2.1
4.0 to 4.5
4.9 to 5.7
2.7 to 2.9
6.4 to 7.4
4.0 to 4.5
7.9 to 9.2
4.9 to 5.7
1.8 to 2.1
4.0 to 4.5
1.8 to 2.1
2.5 to 3.5
13.0 to 15.2
28.9 to 32.5
35.4 to 41.2
19.2 to 20.7
46.3 to 53.5
28.9 to 32.5
57.2 to 66.5
35.4 to 41.2
13.1 to 15.1
28.9 to 32.5
13.1 to 15.1
18.1 to 25.3
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