AR01.00-T-0001BB | Inspect engine for dust damage | 17.7.01 |
ENGINE 457.941 in MODELNMB613.368
ENGINE 457.942 in MODEL NMB671.015 /020 /021 /030 /042 /332 /333
ENGINE 457.944 in MODEL NMB613.358 /367 /388
| Inspect | ||
1 | Inspect intake passage between air cleaner and engine for dust deposits | On engines fitted with oil bath air cleaner, a very fine film is permissible. Severe dust deposits in the elbows of the intake pipes and | |
| Remove | ||
2 | Remove nozzle holder combination | On model 613.358/388, model 671 | |
On model 613.367/368 | |||
| Testing | ||
3 | Inspect cylinder wall for wear (dust damage) | Insert endoscope through the hole of the nozzle holder into the cylinder. | |
| |||
| Notes for evaluation of cylinder contact surface | ||
If the honing patterns of the cylinders reveal damage resulting from increased presence of dust: | |||
Replace cylinder liner. | |||
| Install | ||
4 | Install nozzle holder combination | On model 613.358/388, model 671 | |
On model 613.367/368 |
Commercially available tools
Referenced documents
- ah0140n000103a Notes for evaluation of a cylinder barrel
- ar0140t9324bb Remove cylinder liner, install, seal
- ar0703t6831bb Removing/installing a nozzle holder combination
- ar0703t6831cb Remove/install nozzle holder combination