ENGINE
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
1-S15
3. TIGHTENING TORQUES
Tightening torques of screws, bolts and nuts on the table below are especially specified.
(Tractor section for general use screws, bolts and nuts: Refer to "5. TIGHTENING TORQUES" on page G-13.)
Tractor Section
Engine Section
Item N·m kgf·m lbf·ft
Front coupling mounting bolt 24 to 27 2.4 to 2.8 18 to 20
Engine mounting nut 24 to 27 2.4 to 2.8 18 to 20
Cushion mounting nut 24 to 27 2.4 to 2.8 18 to 20
Engine support mounting screw 48 to 55 4.9 to 5.7 36 to 41
Item
Dimension ×
Pitch
N·m kgf·m lbf·ft
Cylinder head cover screw
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M6 × 1.0 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
Cylinder head cover screw
[BX2670D (D1005-E4)]
M6 × 1.0 7 to 8 0.7 to 0.9 5 to 6
Cylinder head screw
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M8 × 1.25 38 to 42 3.8 to 4.3 28 to 31
Cylinder head screw
[BX2670D (D1005-E4)]
M8 × 1.25 64 to 68 6.5 to 7.0 47 to 50
*Main bearing case screw 1
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M6 × 1.0 13 to 15 1.3 to 1.6 9.4 to 11
*Main bearing case screw 1
[BX2670D (D1005-E4)]
M7 × 1.0 30 to 34 3.0 to 3.5 22 to 25
*Main bearing case screw 2
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M7 × 1.0 27 to 30 2.7 to 3.1 20 to 22
*Main bearing case screw 2
[BX2670D (D1005-E4)]
M8 × 1.25 49 to 53 5.0 to 5.5 37 to 39
*Flywheel screw M10 × 1.25 54 to 58 5.5 to 6.0 40 to 43
*Connecting rod screw
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M7 × 0.75 27 to 30 2.7 to 3.1 20 to 22
*Connecting rod screw
[BX2670D (D1005-E4)]
M7 × 0.75 42 to 46 4.2 to 4.7 31 to 33
*Rocker arm bracket screw
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M6 × 1.0 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
*Rocker arm bracket nut
[BX2670D (D1005-E4)]
M7 × 1.0 22 to 26 2.2 to 2.7 16 to 19
*Fan drive pulley screw
[BX1870D (D722-E4) and
BX2370D (D902-E4)]
M12 × 1.5 118 to 127 12.0 to 13.0 86.8 to 94.0
*Fan drive pulley screw
[BX2670D (D1005-E4)]
M14 × 1.5 236 to 245 24.0 to 25.0 174 to 180
Bearing case cover mounting screw M6 × 1.0 9.81 to 11.2 1.00 to 1.15 7.24 to 8.31
Glow plug M8 × 1.0 7.9 to 14 0.80 to 1.5 5.8 to 10
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