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Disassembly and Reassembly of Major Components
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3.5. Speed Controller Setting
3.5.1. Installation checks
Do the checks in the order indicated. Terminal numbers in this chapter refer to the speed controller.
(4.3. Speed controller)
1) Check that all electrical connections are correctly made and terminal screws tightened, the magnetic
pickup is properly installed and the jam nut tightened, and the fuel valve and drain line are securely
fastened and correctly installed.
2) Do not start the engine now. Turn on governor power. Check the battery voltage at terminals 1(+)
and 2(-). It must be from 18 to 32Vdc.
3) If a signal generator is available: Attach the output to terminals 5 and 6, leaving the magnet pick-up
connections off. Set the signal-generator output between 2 and 10 Vrms. If a signal generator is not
available, proceed to step 8.
4) Set the signal-generator frequency to about half of idle speed. Close the
IDLE/RATED
switch. Turn
the signal generator and governor power on. The voltage across terminals 3 and 4 should measure
about 5Vdc (
START FUEL LIMIT
must be fully clockwise).
5) Set the signal generator for magnet pick-up frequency at rated speed. Close the
IDLE/RATED
switch. Set the external speed trim pot (if used) at mid position. Observe the output from terminals 3
and 4.
(a) If the output is at max-fuel position (about 5Vdc), slowly turn the rated-speed potentiometer coun-
terclockwise until the signal just begins to move to minimum.
(b) If the output is at minimum, slowly turn the rated-speed potentiometer clockwise until the signal
just begins to move to maximum.
(c) Continue to adjust the rated-speed pot very slowly, trying to stop the signal between minimum
and maximum. Stop adjusting when the signal moves slowly. It will not be possible to stop the
motion. The rated-speed reference is now set very close to desired speed.
6) Open the
IDLE/RATED
switch. Set the signal generator for magnet pick-up frequency at idle speed.
(Preset the idle speed only after presetting rated speed.)
(a) If the signal is at maximum-fuel position, slowly turn the idle-speed potentiometer counterclock-
wise until the signal begins to move to minimum.
(b) If the signal is at minimum, slowly turn the idle-speed potentiometer clockwise until the signal just
begins to move to maximum.
7) Continue to adjust the idle-speed pot very slowly, trying to stop the signal between minimum and
maximum. Stop adjusting when the signal moves slowly. It will not be possible to stop the signal.
The idle-speed reference is now set very close to desired idle speed.
8)
If a signal generator is not available:
turn the rated speed pot fully counterclockwise. Turn the
idle-speed pot fully clockwise. Remove the magnet pick-up wires from the speed control and mea-
sure resistance across the magnet pick-up wires. If the resistance is correct replace the connection.
Содержание GV158TIC
Страница 1: ...950106 058010EN GV158TIC GV180TIC GV222TIC GAS GENERATOR ENGINE Operation Maintenance Manual...
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Страница 6: ...6 Engine Installation 143 6 1 Installing 143 6 2 Inspection Prior to Installation 144 Appendix...
Страница 130: ...Electrical equipment 124...
Страница 148: ...Maintenance of major parts 142...
Страница 152: ...Engine installation 146...
Страница 162: ...Appendix 156...