1999/2000 Millenium Transition
Starting the Engine in Manual Operation Cus 168 : 11/99
Year--2000 problems You have already received a letter from MAN B&W Diesel AG regarding
the problems which are expected in connection with computers or
electronic components at the turn of the year. In this letter, we dealt with
the risks and possible reactions in detail. Among other things, it is
recommended that a trial manual start of the engine be carried out before
the New Year.
New sheets for the In order to explain the necessary actions as clearly as possible, we have
Operating manual revised the corresponding sheets of the Operating manual, giving special
attention to the different governor types. We enclose the new sheets,
and kindly ask you to include the ones relating to the governor type
concerned in the Operating manual.
Should the text on the type plate of the governor be illegible, the
identification is possible by means of the test run record.
Support by phone/fax: During the millenium transition, our Service Department is at your
disposal under the following telephone numbers:
Technical Service: Phone: +49--821 / 322 --1499
--3564
--3505
--3459
Mobile phone: +49--171 / 7634 --683
--684
--685
Fax: +49--821 / 322 --3838
Spare Parts Sales: Phone: +49--821 / 322 --1799
Fax: --35 74
E--mail: Service--Augsburg@manbw.de
TKU
MAN B&W Diesel Aktiengesellschaft : Postfach 10 00 80 : D-- 86135 Augsburg : Telefon (08 21) 3 22-- 0 : Telefax (08 21) 3 22 33 82
Failure of the speed control systems 3.6.6
Behaviour in the case of If the speed control system fails and in the case of unsuccessful RESET
stationary engines and/or caused by
main marine engines
in generator operation
- missing or faulty input signals,
- internal faults or
- failure in the voltage supply,
stationary engines and/or main marine engines in generator operation
require an engine emergency stop, which is usually effected by the
governor emergency stop function. The governor shaft is turned to “Zero“
admission. If the emergency stop function of the governor is suppressed,
the engine has, alternatively, to be stopped by the emergency stop device
of the fuel pumps.
▲▲ Caution! Engine operation without an operational governor is
not permitted, as a sudden load relieve, e.g. by de-excitation of the
generator, may cause impermissible overspeed and thus a break of
running gear parts or destruction of the driven engine.
Emergency operation in the case In most cases it is correct
of main marine engines with
direct propeller drive
- to stop the engine,
- to search the fault,
- to eliminate the fault source consequently and
- not to restart the engine before.
In this connection, the fault flags are to be questioned by manual
programming unit, level 4, list 2 from parameter 3000 on. Those which are
set to “1“ have to be eliminated by means of the trouble-shooting
instructions included in the manufacturer’s brochures (see volume D). If
unsuccessful, contact MAN B&W Diesel AG.
As the process required for disturbance elimination may take some time
and, at worst, remain unsuccessful, main marine engines are equipped
with an additional device permitting emergency operation. It consists of a
lever, which is rigidly clamped onto the governor shaft, a travel limitation
and an actuation lever, which is only mounted in an emergency case as
mentioned above. Using the actuation lever, the governor shaft can be
turned and fixed in the required position. For further details, please see
work card 203.01 included in volume B2.
6680 3.6.6--01 E 11.99 32/40 101/ 01
Failure of the speed control systems 3.6.6
Starting the engine in manual operation (with PGA speed governor)
Starting condition Failure of the remote control.
1 Indication
2 Admission lever
3 Push-button
4 Operating lever
5 Fine regulating valve M 128
Figure 1. Operating device, in case a PGA speed governor is mounted
(for older models, the steps apply accordingly)
Steps - Switch the operating lever (Remote control/Local) (4) to “Local”.
- Shift the admission lever (2) to position 4 ... 5.
- Adjust the desired speed value to minimum by means of the fine
regulating valve M 128 (5) (to the stop, counterclockwise).
- Check whether all systems are working (oil, cooling water, lube oil) and
whether the indication (1) is glowing/not glowing.
- Depress the push-button (3) “Starting” until the engine ignites.
- Set the admission limitation to the desired value (normally “Full”) by
means of the admission lever (2).
- Adjust the desired speed value on the fine regulating valve M 128 (5).
In the case of twin-engine plants which drive a shaft, only one engine is
run in manual operation.
▲ Attention! Observe the remarks in Sections 3.4 to 3.7, Engine
operation!
To ensure a reliable interaction of the engine with the subordinate
system components (coupling and propeller or generator), the
corresponding remarks in the operating instruction manuals of the
respective manufacturers are to be observed during manual
operation.
Important! It is recommended to start the engine in manual
operation at regular intervals.
6680 3.6.6--03 E 09.99 40/54, 48/60, 58/64 101/ 02
Mechanic-hydraulic speed governor
In case of a total failure of the mechanic-hydraulic speed governor, e.g.
due to breakage of the speed governor’s drive shaft, the engine is
stopped.
▲ Attention! Starting the engine is only possible after the governor
has been repaired.
6680 3.6.6--03 E 09.99 40/54, 48/60, 58/64 102/ 02
Starting the engine in manual operation (with PGA-EG speed governor)
Starting condition Failure of the remote control or the electronic governor.
1 Indication
3 Push-button
4 Operating lever
5 Fine regulating valve M 128
Figure 1. Operating device, in case a PGA-EG speed governor is mounted
(for older models, the steps apply accordingly)
Steps Switch the operating lever (4) to “Emergency operation with mech.
governor”.
Adjust the desired speed value to minimum by means of the fine
regulating valve M 128 (5) (to the stop, counterclockwise).
Check whether all systems are working (oil, cooling water, lube oil) and
whether the indication (1) is glowing/not glowing.
Depress the push-button “Starting” (3) until the engine ignites.
Adjust the desired speed value on the fine regulating valve (5).
Important! It is recommended to start the engine in manual
operation at regular intervals.
In case of twin-engine plants which drive a shaft, only one engine is run in
manual operation.
Attention! Observe the remarks in Sections 3.4 to 3.7, Engine
operation!
To ensure a reliable interaction of the engine with the subordinate
system components (coupling and propeller or generator), the
corresponding remarks in the operating instruction manuals of the
respective manufacturers are to be observed during manual
operation.
Important! When starting in manual operation, the density of the
exhaust smoke will be increased, as the electric admission limitation has
ceased to have an effect.
6680 3.6.6–04 01.00 40/54, 48/60, 58/4 101/ 02
Mechanic-hydraulic speed governor
In case of a total failure of the mechanic-hydraulic speed governor, e.g.
due to breakage of the speed governor’s drive shaft, the engine is
stopped.
Attention! Starting the engine is only possible after the governor
has been repaired.
Electronic-hydraulic speed control system
In case the electronic speed governor fails, caused
by internal faults or
by a failure of the voltage supply,
the governor output signalling to the actuator drops to zero. One
differentiates two cases:
increasing current signal (direct acting) for higher admission,
dropping current signal (reverse acting) for higher admission.
Direct Acting In case of an increasing signal, admission is set to “Zero”. The engine is
stopped.
Attention! The engine may only be restarted electronically after
the defect has been eliminated.
A further operation using the mechanic governor is possible after
switching over to “Emergency operation with mech. governor”.
Reverse Acting In case of a dropping signal, admission is set to “Full”. The speed
increases. After a certain speed is reached, the mechanic-hydraulic speed
governor takes charge of the speed control.
6680 3.6.6–04E 01.00 40/54, 48/60, 58/64 102/ 02
Failure of the speed control systems 3.6.6
Starting the engine in manual operation (with PGG speed governor)
Starting condition Failure of the remote control.
1 Indication
2 Admission lever
3 Push-button
4 Operating lever
Figure 1. Operating device in case a PGG speed governor is mounted
(for older models, the steps apply accordingly)
Steps - Switch the operating lever (4) to “Local/Emergency operation” - refer to
Figure 1 .
- Shift the admission lever (2) to position 4 ... 5.
- Adjust the desired speed value to minimum by means of the turning
knob (5) (to the stop, counterclockwise) - refer to Figure 2 .
- Check whether all systems are working (oil, cooling water, lube oil) and
whether indication (1) is glowing/not glowing.
- Depress the push-button “Starting” (3) until the engine ignites.
- Set the admission limitation to the desired value (normally “Full”) by
means of admission lever (2).
- Adjust the desired speed value on the turning knob (5).
6680 3.6.6--05 E 11.99 40/54, 48/60, 58/64 101/ 02
5 Turning knob
Figure 2. PGG speed governor (example: V 48/60)
In the case of twin-engine plants which drive a shaft, only one engine is
run in manual operation.
▲ Attention! Observe the remarks in Sections 3.4 to 3.7, Engine
operation!
To ensure a reliable interaction of the engine with the subordinate
system components (coupling and propeller or generator), the
corresponding remarks in the operating instruction manuals of the
respective manufacturers are to be observed during manual
operation.
Important! It is recommended to start the engine in manual
operation at regular intervals.
Mechanic-hydraulic speed governor
In case of a total failure of the mechanic--hydraulic speed governor, e.g.
due to breakage of the speed governor’s drive shaft, the engine is
stopped.
▲ Attention! Starting the engine is only possible after the governor
has been repaired.
6680 3.6.6--05 E 11.99 40/54, 48/60, 58/64 102/ 02
Failure of the speed control systems 3.6.6
Starting the engine in manual operation (with PGG-EG speed governor)
Starting condition Failure of the remote control or the electronic governor.
1 Indication
3 Push-button
4 Operating lever
Figure 1. Operating device, in case a PGG-EG speed governor is mounted
(for older models, the steps apply accordingly)
Steps - Switch the operating lever (4) to “Emergency operation with mech.
governor” (refer to Figure 1 ).
- Turn the admission limitation knob (2) on the governor to position 4 ... 5
(refer to Figure 2 ).
- Adjust the desired speed value to minimum by means of the turning
knob (5) (to the stop, counterclockwise).
- Check whether all systems are working (oil, cooling water, lube oil) and
whether the indication (1) is glowing/not glowing.
- Depress the push-button “Starting” (3) until the engine ignites.
- Set the admission limitation to the desired value (normally “Full”) by
means of the admission limitation knob (2).
- Adjust the desired speed value on the turning knob (5).
In case of twin-engine plants which drive a shaft, only one engine is run in
manual operation.
▲ Attention! Observe the remarks in Sections 3.4 to 3.7, Engine
operation!
To ensure a reliable interaction of the engine with the subordinate
system components (coupling and propeller or generator), the
corresponding remarks in the operating instruction manuals of the
respective manufacturers are to be observed during manual
operation.
6680 3.6.6--06 E 01.00 40/54, 48/60, 58/64 101/ 03
2 Admission limitation knob
5 Turning knob
Figure 2. PGG-EG speed governor (example: L 58/64)
Important! It is recommended to start the engine in manual
operation at regular intervals.
Mechanic-hydraulic speed governor
In case of a total failure of the mechanic-hydraulic speed governor, e.g.
due to breakage of the speed governor’s drive shaft, the engine is
stopped.
▲ Attention! Starting the engine is only possible after the governor
has been repaired.
Electronic-hydraulic speed control system
In case the electronic speed governor fails, caused
- by internal faults or
- by a failure of the voltage supply,
the governor output signalling to the actuator drops to zero. One
differentiates two cases:
- increasing current signal (direct acting) for higher admission,
- dropping current signal (reverse acting) for higher admission.
Direct Acting In case of an increasing signal, admission is set to “Zero”. The engine is
stopped.
6680 3.6.6--06 E 01.00 40/54, 48/60, 58/64 102/ 03
▲ Attention! The engine may only be restarted electronically after
the defect has been eliminated.
A further operation using the mechanic governor is possible after
switching over to “Emergency operation with mech. governor”.
Reverse Acting In case of a dropping signal, admission is set to “Full”. The speed
increases. After a certain speed is reached, the mechanic-hydraulic speed
governor takes charge of the speed control.
6680 3.6.6--06 E 01.00 40/54, 48/60, 58/64 103/ 03
