Inspect engine for dust damage

AR01.00-T-0001BB

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 hoses are a reliable indication of dust damage.
	Remove
2	Remove nozzle holder combination	On model 613.358/388, model 671	AR07.03-T-6831BB
		On model 613.367/368	AR07.03-T-6831CB
	Testing
3	Inspect cylinder wall for wear (dust damage)	 Insert endoscope through the hole of the nozzle holder into the cylinder.
			*WH58.30-Z-1006-05A
	Notes for evaluation of cylinder contact surface		AH01.40-N-0001-03A
		If the honing patterns of the cylinders reveal damage resulting from increased presence of dust:
		Replace cylinder liner.	AR01.40-T-9324BB
	Install
4	Install nozzle holder combination	On model 613.358/388, model 671	AR07.03-T-6831BB
		On model 613.367/368	AR07.03-T-6831CB

Commercially available tools

Number

Designation

WH58.30-Z-1006-05A

Flexible endoscope, package contents 1 (complete unit),

Firma Richard Wolf GmbH D-75438 Knittlingen

Firma Karl Storz GmbH D-78532 Tuttlingen