Installation manual

ENGINE ADJUSTMENTS
TESTING THE MAGNETIC PICK UP COIL
Test the speed sensor connector for voltage and resistance
values.
If the values are correct, remove and inspect the magnetic
pick up. With the wires disconnected, unscrew the
magnetic pick up from the generator housing and visually
inspect the contact end.
If any damage is detected, replace
the unit.
NOTE: Carefully follow the installation instructions
provided with the new magnetic pick up coil.
SPEED SENSOR TEST VALUES
VOLTAGE (while cranking)
1.5 - 2.5 VAC
RESISTANCE (at rest) 950 - 1000 ohm
~ K-UP~
~~, "?'~(:::' MPU-MAGNETtC PIC~
~' ~0.030tn
--
MAGNETIC PICK·UP [MPUjINSTALLATION
The MPU is installed in the threaded opening on the side
of the flywheel bellhousing. This positions the MPU over
the teeth
of the flywheel ring gear.
Viewing through this opening, manually rotate the engine
crankshaft so
as to position the flat of one of the ring
gear's teeth directly under the opening. Thread the
MPU
into the opening until it gently contacts the flat of this'
tooth (Thread is 3/8" x 24). Back the MPU out of the
opening one tum and then lock it in this position with
the
jam nut. This will position the end of the MPU
approximately 0.030 inches away'from the flats of the
ring gear teeth.
To ensure the MPU is positioned correctly, slowly rotate
the crankshaft by
360' by hand to assure there is no
physical contact between the
MPU and the ring gear teeth.
If contact is felt between the MPU and the flywheel teeth,
the
MPU may be damaged. Remove the MPU and inspect
it. Replace if necessary and repeat the above
installation procedure.
NOTE: When replacing the Magnetic Pick-Up (MPU) it
MUST be replaced without cutting and splicing into the
existing wiring cable. Doing so will cause a erratic AC
signal to the controller.
Engines & Generators
30