Engine; Engine - Barring Manually - MTU 20V4000M93 series Operating Instructions Manual

7.2 Engine

7.2.1 Engine – Barring manually
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Barring tool
Ratchet with extension
DANGER
Rotating and moving engine parts.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Before barring the engine, make sure that there are no persons in the engine's danger zone.
• After finishing work on the engine, make sure that all safety devices are put back in place and all
tools are removed from the engine.
Engine – Barring manually
1. Remove guard plate.
Result: Safety switch preventing engine starting is
activated.
2. Engage barring device (2) in ring gear (3) and
install on flywheel housing.
3. Apply ratchet (1) to barring device (2).
4. Rotate crankshaft in engine direction of rota-
tion. Apart from the normal compression re-
sistance, there should be no resistance.
5. For barring device removal, follow reverse se-
quence of working steps.
138 | Engine | MS150048/05E 2018-03
Part No. Qty.
F6555766 1
F30006212 1