MAK M 20 - Timing Gear Train

Timing Gear Train
Inspection / Checking
A5.05. 04.08.01.00
3750
M20
en / 30.09.2010 IB022002 1/1
04
See also:
Spare parts list: B1.05.04.2.5140
Time requirement: 1 Pers./ 0,50 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Inspection:
Working surfaces of the teeth 3,750 h
Sequence of operation:
1. Remove the covers at the gear housing on
the camshaft and exhaust side.
1.1 Check the tooth surfaces of the camshaft
gear (Fig. 1/1), intermediate wheel (2) and
crankshaft gear (3) (pitting, cross bearing,
disintegrations etc.)
1.2 Check the function of the oil nozzles (4, 5
and 6).
1.3 Fit the covers and check the gaskets.
2. Replace the O-rings on the intermediate
wheel axle (7).
2.1 Remove locking plate (Fig. 2/10).
2.2 Shift the intermediate wheel axle (7) from
the gear housing in the direction of the
coupling side and renew the
O-ring (11).
CAUTION
The preset tooth meshing of the
intermediate wheel to the cams-
haft gear and crankshaft gear
must not be adjusted. Danger of
timing adjustment!
Fig. 1
1
7
6
4
2
5
3
10
11
7
Fig. 2