MAK M20 - Piston Maintenance;Disassembly

Piston
Maintenance / Disassembly
A5.05. 02.06.01.01
M20
en / 04.09.1998 IB004750 1/3
02
Ĺ
See also: 01.06.01.nn, 02.04.01.nn, 02.07.01.nn
Spare parts list: B1.05.02.2.2601
Time requirement: 1 Pers./ 0,50 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Tools:
Dismounting device, calibrating ring 2.9216 B
consisting of:
liner support W1.1 2.9216-103
thrust ring W1.2
ring bolt M12 W2 1.9080-12
turning rod W3 * 2.9100-380
*no illustration
Auxiliary material:
Rust removal spray “Caramba“**
** or product of equal standard
Note:
The cylinder liner is to be secured with
the liner supports (W1.1) to prevent loo-
sening of the cylinder liner (Fig.1 / 4).
Sequence of operations:
1. Use turning rod (W3) and turn crank pin
approx. 20° before TDC in direction of
the control side.
2. Dismount cylinder head (01.06.01.nn)
3. Place a used joint ring (Fig.1 / 1) onto
the cylinder liner (4) to protect the
sealing surface.
4. Attach the liner supports (W1.1) to the
used joint ring (1) as shown in the illu-
stration
5. Tighten round nuts (2) by hand.
Z
5
1
43
6
W1.2
Z
2
W1.1
1