Inspect cylinders with a light probe

AR01.00-P-0200OLI

Inspect cylinders with a light probe

15.07.2020

Engine

654 in model 205, 253

Engine

656 in model 253

Modification notes

29.04.2020

Method changed for engine 656.

Operation step 4

1

Endoscope

2

Flexible test probe

 Danger

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

 Danger

Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure

Keep all ignition sources out of hazard area.
Do not carry out any work on system when it is pressurized.

AS07.16-Z-0001-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Disconnect the ground line for the on-board electrical system battery(G1).

AR54.10-P-0003LW

2

Remove fuel injectors (Y76).

Engine 656 in model 253

AR07.03-P-0004OIF

Engine 654 in model 205, 253

AR07.03-P-0004OLI

3

Remove front noise insulation on the engine.

Engine 654 in model 205, 253
with code M014 (Engine uprated)

4.1

Remove impact plate in front of poly-V-belt.

Engine 654 in model 205, 253

AR13.22-P-1202OLI

4.2

Remove fan unit.

Engine 656 in model 253

AR20.40-P-5050OLG

5

Turn engine on the belt pulley of the crankshaft in the direction of engine rotation until the piston of the cylinder to be checked stands at bottom dead center (BDC).

 Counterholder

*654589004000



Check

6

Connect endoscope(1), insert flexible test probe(2) in the cylinder to be checked and illuminate cylinder.



000 588 01 21 00 Endoscope

WS01.00-P-0097B

7

Check cylinder barrel.

General information on checking valves, valve seats and valve guides

AH05.30-P-1000-02SZ

General information on inspecting cylinder walls

AH01.00-P-0300-01AMG

8

Perform check of additional cylinders in same manner.

9

Install in the reverse order.