Inspect cylinders with a light probe

AR01.00-G-0200CH

Inspect cylinders with a light probe

20.07.2018

Engine

457.9, 458.9 in model 000.001

Modification notes

19.06.2018

Work procedure completely revised.

Shown on cylinder 4

1

Endoscope

2

Inspection light

3

Hole

 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

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Notes for evaluation of a cylinder barrel

AH01.40-N-0001-03A

Notes on the assessment of pistons and piston rings

AH03.10-N-0001-04A



Remove

1

Start engine and bring to operating temperature, then switch off engine.

 See information from body manufacturer.
Coolant temperature approx. 80 °C.

2

Attach turning device for engine.

AR03.30-G-1600-03CH

 Bolt, turning device to timing case

*BA01.60-N-1009-01K

 Turning device

*904589046300

3

Remove nozzle holder assembly.

AR07.03-G-6831CH



Check

4

Connect endoscope (1) to inspection light (2).

 Pay attention to manufacturer's operating instructions.

5

Set piston of cylinder to be checked to bottom dead center and insert endoscope (1) into bore (3).


The endoscope (1) must not touch on or hit against the piston crown.
Otherwise, the tip of the endoscope will be damaged.

 Check position of the piston through the endoscope (1) and turn the crankshaft correspondingly with the  turning device.

 Turning device

*904589046300

6

Check cylinder barrel, piston crown, compression chamber and valves for damage.

If problems exist or in case of doubt,



remove relevant cylinder head and replace damaged parts.

AR01.30-G-5800CH

7

Remove endoscope (1) from bore (3).

8

Check remaining cylinders in same manner.

If required.

 For this purpose, repeat corresponding operation steps.
If necessary check cylinders in pairs in 3 crankshaft positions.
Cylinders 1 and 6,
cylinders 2 and 5 and
cylinders 3 and 4 respectively.

9

Disconnect endoscope (1) from inspection light (2).

 Pay attention to manufacturer's operating instructions.



Install

10

Remove turning device for engine and install cap.

AR03.30-G-1600-03CH

 Bolt, cap of TDC inspection hole to timing case

*BA01.60-N-1001-01K

11

Install nozzle holder assembly.

AR07.03-G-6831CH

 Timing case

Number

Designation

Engine 457.9, 458.9 in model 000.001

BA01.60-N-1001-01K

Bolt, cap of TDC inspection hole to timing case

Nm

25

 Timing case

Number

Designation

Engine 457.9, 458.9 in model 000.001

BA01.60-N-1009-01K

Bolt, turning device to timing case

Nm

25