WD615欧Ⅱ系列柴油机维修保养手册
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Maintenance Manual for WD615 Series EuroⅡDiesel Engine
第一步:先拧靠,再用120N·m的力矩对称扭紧。
Step 1:Tighten tightly,then tighten these bolts symmetrically with a torque of 120N
第二步:旋扭 90
。
±5
。
,扭矩须在 170~250 N·m 范围内
Step 2:Turn these bolts 90
。
±50
。
and the torque range is 170~250 N·m.
对达不到扭矩要求的螺栓应更换
Replace those bolts that can not reach required torque range.
注意:经过拆卸后的连杆螺栓不得再使用。
Note:The connecting rod bolts that have been used should not be reused.
4.飞轮螺栓:
Flywheel Bolt:
9根M14x1.5 22套筒扳手
Total nos.:9 pcs M14x1.5 Tool:22mm sleeve wrench
第一步:60N·m力矩对称扭紧
Step 1:Tighten these bolts symmetrically with a torque of 60N·m.
第二步:转180
。
±50
。
,扭矩同时达到230~280 N·m
Step 2:Turn these bolts 1 80
。
±5
。
,and the torque range is 230~280 N·m.
对达不到扭矩要求的螺栓应更换
Replace those bolts that can not reach required torque range.
注意:飞轮螺栓只许使用2次。
Note:The flywheel bolt is only allowed to be reused for 2 times.
5.飞轮壳螺栓:
Bolt for Flywheel Housing
13根M12螺栓 套筒扳手
Total nos.:1 3 pcs M 12 bolts Tool:box wrench
第一步:40N·m力矩拧紧
Step 1:Tighten these bolts with a torque of 40N·m.
第二步:分别旋转120
。
±50
。
,同时达到110~140N·m
Step 2:Turn these bolts 1 20
。
±5
。
respectively,and the torque range is 110~140 N·m.
不在扭矩范围内的螺栓应更换
Replace those bolts that can not reach required torque range.
飞轮壳螺栓允许重复使用2次。
The flywheel housing bolt is allowed to be reused for 2 times.
注意:以上几种强力螺栓拧入前均要在螺纹及支撑面上涂润滑油。
Note:Smear thread and bearing surface of high strength bolts described above
with lubricating oil before tightening
.