FOLLOWING INSPECTION TO BE CARRIED OUT IN CRANKCASE:-
1. Firstly check the oil condition for any smell, discolouration or degradation.
2. Turn the Engine to BDC & start checking from under stuffing box area for any signs of black oil, if so indication of stuffing box leaking.
3. Check piston rod surface for scoring marks & roughness.
4. Check Piston palm bolts & locking device for slackness & fretting.
5. Check guide & guide shoe bearing general condition & area around frame where guide is attached for any visible cracks.
6. Check guide shoe end cover bolts in place & not slack.
7. Check cross head general bearing condition.
8. Top & Bottom end of the con rod bolt, nut & locking devices for slackness, sign of fretting etc.
9. Check sliding of bottom end bearing (floating of con rod).
10. Check for slip of web & journal by checking the reference mark.
11. Check the web in the area of stress concentration & check tie bolts (bottom side).
12. Check cross girder, area around main bearing & bearing keep for signs of cracks & check the main bearing.
13. All bearings to be checked for silvery colour, (indicates bearing wiping)
14. Check all the surrounding oil pan area of all units for any sludge deposits, bearing metal pieces etc.
15. Check crankcase relief door (wire mesh should be wet, spring tension sealing condition etc.)
16. Check the teeth of transmission gears for signs of wear.
17. Check chain drive for tightness.
18. Oil mist detector sampling pipe to be checked for clear passage.
19. Clear all foreign materials from the C.C. & tools accounted for.
20. Start L.O.p/p & X-Hd p/p & check oil flow & distribution.
21Check C.C.door sealing condition & close the door.