MAK M20, Руководство по эксплуатации

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Zylinderbuchse
Inspection / Measuring
A5.05. 03.03.01.02
15000, 30000
M20
en / 16.07.2001 IB022447 2/2
03
Ĺ
1.5 Enter the measured values in the table
(
fig. 2
) and then determine the
wear
(d1 - reference dimension d3 etc.). Also
refer to the measuring sheet in the
"forms for maintenance reports"
folder”.
1.6 When the wear limit, normally in the
area of the upper piston ring point of
return (
fig. 3
/4; TDC, first ring) or other
limit values indicate in the table are
reached, then the cylinder liner must be
replaced.
Reconditioning of the cylinder liners is
only possible by Caterpillar / MaK.
Cylinder liner wear chart
Evaluation criteria
Wear limit Explanation
(mm)
Nominal Ø (new) * Radius r
≥
3mm
200
+46
** in circumferencial direction
*** 1: Gusset, 2: Pocket, 3: Scores
Wear 0,8 4: TDC 1st. ring, 5: Canyon
Max. out-or-round 0,25
Gusset Height 6,00 wedge-shaped indentation across the
Depth * 0,03 entire circumference, beginning from
the TDC of 1st. piston ring.
Canyon max. number 3 Individual deep blow-through ducts
Height 6,00 in the area of the first piston ring
total width 3,00 (TDC).
Scores Number 3 Vertical and linear scores.
Height 140,00
Depth 0,03
Pocket Number 3 Irregular indentations.
Height 45,00
Width ** 15,00
Depth * 0,02