Terex T25 - Page 29

Terex T25I and T45I Super Quiet Generator 29
Operating Instructions and Parts Manual
June 2006
REV A
ELECTRICAL TROUBLESHOOTING (Cont.)
be checked with a voltage meter. With the engine
in a starting sequence check for 2.5 to 3 VAC
between the red and black wire. Adjust the
sensor in or out to obtain the correct voltage.
• Once the voltage is correct, reinstall the
shielded cable through the control box opening
and reattach the wire leads to the speed
controller. Also, secure the new cable through
the housing with ty-wraps where needed.
If any further adjustment is needed to the voltage
of the generator please call Terex at 1-800-433-
3026 for assistance.
PROCEDURE FOR CHANGING
THE MAGNETIC PICK-UP
SENSOR (Cont.)
PROCEDURE FOR CHANGING
THE VOLTAGE POTENTIOMETER
THIS EQUIPMENT USES HIGH VOLTAGE
CIRCUITS CAPABLE OF CAUSING SERIOUS
INJURY OR DEATH! EXCERCISE EXTREME
CAUTION AROUND ANY ELECTRICAL
COMPONENT WHEN OPERATING THIS UNIT.
INSTALLATION AND ANY WORK PERFORMED
ON THIS UNIT SHOULD BE DONE ONLY BY A
QUALIFIED ELECTRICIAN.
• Make sure generator is turned off and e-stop is
engaged before opening control panel.
• Locate the two wires going to the back of the
potentiometer. Both wires will be white with a
red stripe.
• Both wires have been spliced into harness
wires and should be cut so that the splice is
taken out. It is better to have as few splices as
possible and you will be replacing the splice
you cut out.
• Once the wires are loose, go to the front of the
control panel and loosen the lock nut holding
the potentiometer.
• Put the new potentiometer in its place and
retighten lock nut.
• Reattach new wires to the same wires and in
the same configuration as the ones that were
cut loose in step 3.
• After completing the installation of the new
potentiometer go back and check all
connections to make sure everything is tight
and that no connections are loose, this includes
all other wiring on the back of the control panel
and on the inside of the control box.
• You should now be able to restart the generator
and check for proper operation.
If any further adjustment is needed to the voltage
of the generator please call TEREX at 1-800-433-
3026 for assistance.