This document is property of NIIGATA POWER SYSTEMS CO., LTD. It must be neither reproduced nor communicated nor published without permission.
SECTION
4
- DISASSEMBLY AND REASSEMBLY
4.6 CRANKCASE ASSEMBLY
4-6-06
- Carefully rotate the crankshaft in the direction indicated by the
sketch until the upper shell is in its correct position. Release the
hydraulic pressure on the bottle jack, lower the bearing cap, and
remove the dummy bearing cap.
- Place the lower main bearing shell in the cap, raise the cap into place
by using the hydraulic jack, and install the stud nuts hand-tight (use
Molykote or similar lubricant on the studs).
- Tighten the LH side bolt (as viewed from the front or timing gear end)
to 245 N
・
m. (Note that this is only about half the final torque value
- it will be tightened again in the last step).
- Install the stud tensioning jacks on the studs (same as was done when
the stud nuts were removed, as outlined above), raise the jack pressure
(refer to tightening table), and tighten the stud nuts by hand using the bar A4.
- Bleed the pressure from the tensioning jacks and remove them.
- Tighten the LH side bolt and the LH side-bolts of the adjacent
bearings to the final torque value as above. (refer to tightening table)
- Tighten the RH side bolt and the RH side-bolts of the adjacent
bearings to the same final torque value as above.
Summary of Contents for NIIGATA MG(L)26HLX
Page 2: ......
Page 34: ......
Page 38: ......
Page 40: ......
Page 60: ......
Page 66: ......
Page 68: ......
Page 80: ......
Page 82: ......
Page 86: ......
Page 88: ......
Page 94: ......
Page 107: ......
Page 108: ......
Page 110: ......
Page 130: ......
Page 132: ......
Page 170: ......
Page 174: ......
Page 186: ......
Page 188: ......
Page 192: ......