172
(
5）Tightening torque of each parts.
Name
Tightening torque
N･m ㎏ f･m
① Bolt（Cap） 7.3～10.0 0.74～1.02
② Plug (Check valve) 58.8～68.6 6～7
③ Plug (Shut-off valve) 98～118 10～12
④ Lock nut 18.0～21.5 1.8～2.2
⑤ Lowering valve seat
29.0 3.0
⑥ Bolt (Plate) 10～15 1～1.5
NOTE：
Remove the oil from the spool thread and bolt thread
：
⑥
, and apply the thread sealant to them before tighten.
6) Adjustment of sensitivity.
(1）Rotate the engine at 1000～1500 rpm and inspect
the play of the lever (insensible area) that the
position control lever is at the position as shown
below on the lever guide.
Play of control lever
Continuous lifting
About 5mm
Continuous lowering
Lifting to lowering change over
About 10mm
Lowering to lifting change over
(2）When the play of the lever does not meet the above
values, adjust properly with the screw projects
from the plate. If the screw projects from the
plate is greater that the lift arms will be cycle up
and down, and if it is smaller that the control lever
play will be greater.
498Y
499Y
500Y
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