Jianshe JS125-6B, Maintenance Manual

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20
SPECIFICATIONS
For general locking torque (except appointed locking
torque), locking torque force is determined by thread
diameter (two-face width) and thread pitch when fas-
tening a screw and a screw cap.
Tightening order of steering system (dual
toroidal nut)
1. First, the nut (serial number ) is fastened to
30 35N.m.
2. Then, the direction handle is turned from left to
right 2 3 times. Clamping stagnation must not be
occurred and the ball race is not flexible while the
direction handle is turned.
3. After that, the nut (serial number ) is unscrewed
one-quarter turn, and then fastened. Its fastening
torque is 20 24 N.m.
4. The nut (serial number ) is turned to press against
the nut (serial number ).
5. Then a special gasket of the nut (serial number )
is assembled, a retaining pawl should be jammed in
the furrows of the nuts (serial number and ) in
the meantime. If the furrows are not aligned, the nut
(serial number ) should be turned to guarantee
alignment.
Tightening order of steering system (securing
nut with dustproof)
1. First, the nut (serial number ) is fastened to
30 35N.m.
2. Then, the direction handle is turned from left to
right 2 3 times. Clamping stagnation must not be
occurred and the ball race is not flexible while the
direction handle is turned.
3. After that, the nut is unscrewed one-quarter turn,
and then fastened. Its fastening torque is 20 24 N.
Screw diameter ( two-face
width) Thread pitch
Lock
M 5 8 m m 0 . 8
M6(10mm) 1.0
M8(12mm) 1.25
M10(14mm) 1.25
M12(17mm) 1.5
3-4N.m(0.3-0.4kg.m)
5-8N.m(0.5-0.8kg.m)
12-19N.m(1.2-1.9kg.m)
24-39N.m(2.4-3.9kg.m)
45-72N.m(4.5-7.2kg.m)