Series
en
ar0100w0200j
Inspect cylinders with a light probe
Type ar · topic 01.00 · version 0106 · 2014-03-10
Applies to: ENGINE 900.9 in MODEL 375.1, 970, 972, 975, 976 ENGINE 902.9 in MODEL 375.1, 970, 972, 974, 975, 976 ENGINE 902.9 in MODEL 375.3, 950.5/6, 952.5/6, 953.6, 954.5 ENGINE 902.9 in MODEL 957 without CODE MS8 (Natural gas engine) ENGINE 924.9 in MODEL 970, 972, 974, 975, 976 ENGINE 925.9 in MODEL 970, 972, 974 ENGINE 926.9 in MODEL 950.5/6, 952.5/6, 953.6, 954.5, 957
Where it sits
Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.00 General — Series 375 (models 1**, 3**) · Series 900 (models 9**) · Series 902 (models 9**) · Series 950 (models 5**, 6**) · Series 952 (models 5**, 6**) · Series 953 (models 6**) · Series 954 (models 5**) · Series 957 · Series 970 · Series 972 · Series 974 · Series 975 · Series 976
EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.15 internal combustion engine, complete — Series 375 (models 1**, 3**) · Series 900 (models 9**) · Series 902 (models 9**) · Series 950 (models 5**, 6**) · Series 952 (models 5**, 6**) · Series 953 (models 6**) · Series 954 (models 5**) · Series 957 · Series 970 · Series 972 · Series 974 · Series 975 · Series 976
Also applies to engines/gearboxes: 924 9**, 925 9**, 926 9**
AR01.00-W-0200J
Inspect cylinders with a light probe
16.01.2014
ENGINE
900.9 in MODEL 375.1, 970, 972, 975, 976
ENGINE
902.9 in MODEL 375.1, 970, 972, 974, 975, 976
ENGINE
902.9 in MODEL 375.3, 950.5/6, 952.5/6, 953.6, 954.5
ENGINE
902.9 in MODEL 957
without CODE MS8 (Natural gas engine)
ENGINE
924.9 in MODEL 970, 972, 974, 975, 976
ENGINE
925.9 in MODEL 970, 972, 974
ENGINE
926.9 in MODEL 950.5/6, 952.5/6, 953.6, 954.5, 957
Remove
1
Remove nozzle holder combination
AR07.03-W-6831J
Only on the cylinder to be checked.
2
Remove cap on timing case and attach cranking device
AR03.30-W-1600-03J
Bolt, turning device to timing case
*BA01.60-N-1003-01A
Turning device
*904589046300
Illuminate
3
Set piston on cylinder to be checked to BDC using cranking device
4
Connect endoscope (1) and switch on
Observe operating instructions from the manufacturer when connecting.
5
Introduce endoscope (1) through bore of the protective sleeve in the cylinder
The endoscope (1) must not touch on the piston or knock. The lens probe tip will be damaged otherwise.
The ambient temperature must be 80°C.
6
Check condition of cylinder barrel, piston crown, clearance volume and valves
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
In case of damage or when in doubt:
Remove cylinder head.
MODELS 375, 950, 952, 953, 954, 970, 972, 974, 975, 976
AR01.30-W-5800J
Model 957
AR01.30-W-5800JB
7
Illuminate remaining cylinders in the same way if necessary
For 4-cylinder engines the cylinder can be illuminated with two crankcase positions: cylinder 1 and 4 in BDC, cylinder 2 and 3 in BDC. For engine 6 -cylinder engines the cylinders can be illuminated at three crankshaft positions: Cylinder 1 and 6 at bottom dead center, Cylinder 2 and 5 at bottom dead center Cylinder 3 and 4 at bottom dead center.
Install
8
Remove cranking device at timing case and attach cap
AR03.30-W-1600-03J
The cranking device must be removed before starting the engine. The ring gear or the timing case will be destroyed otherwise.
Inspection hole cap to timing case
*BA01.60-N-1002-01A
Turning device
*904589046300
9
Install nozzle holder combination
AR07.03-W-6831J
Number
Designation
ENGINE 900.9, 902.9, 904.9, 906.9
ENGINE 924.9, 925.9, 926.9
BA01.60-N-1002-01A
Inspection hole cap to timing case
Nm
25
25
Number
Designation
ENGINE 900.9, 902.9, 904.9, 906.9
ENGINE 924.9, 925.9, 926.9
BA01.60-N-1003-01A
Bolt, turning device to timing case
Nm
25
25
Referenced documents