6-3. Disassembling
Disassembling procedures
Read the following disassembling procedures with reference to pages 6-7.
1. Turn off the main power of the machine before starting work.
2. Remove the jaws.
3. Loosen the chuck attaching bolt [11] and remove the chuck from the spindle.
4. Loosen the knock pin [15] and remove the pinion [4].
5. Loosen the cover attaching bolt [13] and remove the cover [2].
6. Remove the scroll [3].
Assembling procedures
Assemble again while sufficiently coating the recommended grease in the reverse
procedures of disassembling. At this time, pay sufficient attention so as not to make a
mistake in the numbers of the body [1], the jaw and the pinion [4].
Refer to page 36 about the installation procedure. (9-3. Attachment of chuck).
・
Always tighten the bolts at the specified torque. If the torque is insufficient or
excessive, the bolt will break, which is dangerous as the chuck or work will fly
out.
Table 8-1 Chuck mounting bolt and jaw mounting bolt
28
Socket head cap screw
Tightening
torque
M8 33
N
・
m
M10 73
N
・
m
M12 107
N
・
m
M16 250
N
・
m
Table 8-2 Cover mounting bolt
Slotted head
cap screw
Tightening
torque
Socket head cap screw
Tightening
torque
M3.5 3.0
N
・
m
M6 15.7
N
・
m
M4.5 3.0
N
・
m
M8 29.4
N
・
m
M6 3.0
M10 49.0
N
・
m
N
・
m
M12
49.0
N
・
m
Summary of Contents for JN N Series
Page 7: ...1 3 Parts list Fig 3 6...
