MAK M20 User manual

General
Engine operating instructions
Type
M20
General
Engine operating instructions
A0
M20
en / 31.10.2001 AA021665 1/1
Ĺ

Total Index
Book A, B and C
A0.01
-
en / 31.10.2001 AA020014 1/2
Ĺ
Engine operating instructions A0
Total Index Book A, B and C A0.01
Introduction A0.02
Safety instructions A0.03
Technical engine data A1
Governor-data A1.04
Working pressures of auxiliary equipment A1.05
Temperatures of operating media A1.06
Torsional vibration calculation A1.09
Acceptance Test Records A1.10
Operating instructions A3
Table of contents A3.01
Introduction A3.02
Safety instructions A3.03
Instructions for heavy fuel operation A3.04
Initial operation A3.05
Operational supervision A3.06
Removal from operation A3.07
Danger of frost A3.08
Running-in A3.10
Fault tracing A3.11
Emergency operation A3.12
Operating media A4
Table of contents A4.01
Introduction A4.02
Safety instructions A4.03
Regulations and care A4.05
Maintenance A5
Table of contents A5.01
Introduction A5.02
Safety instructions A5.03
Tools A6
Table of contents A6.01

Introduction
A0.02
M20-M601C
en / 27.07.2000 AA000024 1/1
Ĺ
The present operating instr ctions incl de notes and g idelines for proper handling of the engine
plant. It is matched with the eq ipment condition and the type of f el sold.
Since the type of f el sed considerably infl ences the service life of the components, the Caterpil-
lar / MaK after-sales service has to be cons lted when it is req ired to change from destillate f el
operation to heavy f el oil operation, in order to ens re an expert retrofit of the engine plant and to
exchange the necessary doc mentation. When changing over from heavy f el oil operation to
destillate operation, the Caterpillar / MaK after-sales service sho ld also be cons lted for a longer
period of time so that a doc mentation with extended maintenance intervals can be made available.
With regard to operation and maintenance of the engine incl ding the necessary work to be carried
o t, the operating instr ctions are s bdivided into the following chapters:
A1 Technical engine data
A3 Operating instructions
A4 Fuels
A5 Maintenance
A6 Tools
With the respective information contained in the individ al chapters, the technical personnel is able
to maintain the engine in s ch a manner that regarding its o tp t, reliability, economy and service
life optim m operating res lts can be achieved.
If yo need f rther information or if yo have any other q estions, we kindly ask yo to contact o r
department service technology.
The operating instr ctions do not release the personnel in charge of this engine plant from their
d ty to take care. The recognized r les of technology are to be observed, taking into acco nt
overriding reg lations, observance of the general safety meas res and locally applicable accident
prevention reg lations. Data or explanations ass med to be the basic knowledge of trained techni-
cal and engine room personnel, are not contained.
Caterpillar / MaK is not responsible for damage ca sed by improper operation and maintenance.
These operating instr ctions are only intended for o r c stomers. All rights reserved for this doc -
ment. All technical data contained in these operating instr ctions m st neither be reprod ced, distri-
b ted nor tilized for competitive p rposes or disclosed to third parties witho t o r express approval.
Postal address: Caterpillar Motoren GmbH & Co. KG, P.O. Box 9009, D-24157 Kiel
Telephone: [phone] (chief operator)
Telefax: [phone](after-sales service only)
http://www.mak-global.com

Safety instructions
A0.03
M20-M601C
en / 19.02.1996 AA000370 1/1
Ĺ
Personnel entrusted with work on the engine/plant must have read the
operating instructions and in particular the pages on safety instructions
which precede the chapters before beginning work. In order to eliminate
danger which may constitute a risk of life and limb of the user or of third
parties, all safety regulations which are marked with the ĭĭ
ĭĭ
symbol have
to be observed in all cases.
Technical instructions and/or operations to be strictly observed are
marked in the documents with attention. They warn of possible damage
to the machinery or to other material property.
Note refers to special information on appropriate use and work to be
carried ou
California / USA
Proposition 65 Warning
Diesel engine exhaust and some of its constituents are known to the
state of California to cause cancer, birth defects, and other reproductive
harm.

Technical engine data
A1
M20-M601C
en / 31.10.2001 AA000103 1/1
Ĺ
Technical engine data

Governor-data
A1.04
-
en / 18.02.2000 AA000097 1/1
Ĺ
Governor-data
not installed on CD-Rom

Working pressures of auxiliary equipment
A1.05
M20
en / 28.03.2000 TD000033 1/1
Ĺ
Lubricating oil
- at the last main bearing 4,0 - 4,5 bar
at rated engine speed
Cooling water
- min. feed head at p mp inlet 4 m. water ga ge 2,5 - 5,0 bar
Fuel at injection pump inlet
- Distillate f el 3,0 - 5,0 bar
- Heavy f el 4,0 - 5,0 bar
Injection nozzle opening pressure
- take the applicable fig res from the acceptance test records ( A1.10 )
Control air
7,5 bar
Starting air
7,5 bar

Temperatures of operating media
A1.06
M20
en / 13.07.1999 TD000036 1/1
Ĺ
Lubricating oil
- engine inlet 60 - 65 °C
- temperat re rise at rated o tp t 10 - 14 °C
Cooling water
- engine o tlet 65 - 80 °C
- temperat re rise at rated o tp t 7 - 10 °C
Charge air
see also A3.06.05.nn
- engine inlet 45 - 60 °C
Distillate fuel
40 - 50 °C *1
Fuel before injection pumps
(see diagram) *1
Permissible injection viscosity must be set on the viscothermic device to enable a kinematic viscosity of 10 - 12
mm
2
/s (cSt) to be reached before the injection pumps, corresponding to a dynamic viscosity of 9 - 11 mPas (di-
stillate fuel below 10 mm
2
/s or 9 m Pas).
The heavy fuel specifications defined by Caterpillar / MaK (e.g. RHM 35 (~ IF 380) give the heavy fuel tempe-
rature before engine starting.
*1However, the maximum temperature at injection pumps must not exceed 155 °C!

Torsional vibration calculation
A1.09
-
en / 16.11.1999 AA020354 1/1
Ĺ
Torsional vibration calculation
not installed on CD-Rom

Acceptance Test Records
A1.10
-
en / 16.11.1999 AA000095 1/1
Ĺ
Acceptance test records
not installed on CD-Rom