2-S4
ZD321, ZD326, ZD331, 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 lbf·ft
Motion control lever mounting bolt and nut 18 to 20 1.8 to 2.1 13 to 15
Hydrostatic transmission mounting screw
(M10, 7T, Aluminum)
40 to 44 4.0 to 4.5 29 to 32
Universal joint mounting screw 26.5 to 28.4 2.7 to 2.9 19.6 to 20.9
Rear axle gear case mounting screw (M12, 7T) 78 to 90 7.9 to 9.2 58 to 66
Rear axle gear case mounting screw
(M10, 7T, Aluminum)
40 to 44 4.0 to 4.5 29 to 32
Hydraulic pump mounting screw 40 to 44 4.0 to 4.5 29 to 32
Center case rear cover mounting screw 40 to 44 4.0 to 4.5 29 to 32
Center section mounting hex. socket head screw 40 to 44 4.0 to 4.5 29 to 32
Check and high pressure relief valve plug 30 to 44 3.0 to 4.5 22 to 32
Engine mounting nut 24 to 27 2.4 to 2.8 18 to 20
ROPS mounting screw (M10, 7T) 48 to 55 4.9 to 5.7 36 to 41
Rear wheel mounting screw 108.5 to 130.2 11.1 to 13.3 80 to 96
Center case front cover mounting screw
(M10, 7T, Aluminum)
40 to 44 4.0 to 4.5 29 to 32
Hydrostatic transmission and rear axle gear case
assembly mounting screw (M10, 7T, Aluminum)
40 to 44 4.0 to 4.5 29 to 32
ROPS connecting plate mounting screw (M8, 7T) 24 to 27 2.4 to 2.8 18 to 20
ROPS connecting plate under mounting screw
(M10, 7T)
48 to 55 4.9 to 5.7 36 to 41
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