NEUTRAL START SWITCH CHECK
Proper switch operation must be checked prior to
installing the external control linkage.
Install a 300 PSI gauge into the pressure gauge
port on each side of the control 7/16"-12 str. thd.
Connect a continuity checker to the screws on
the end of the neutral start switch.
Make certain the control is in neutral (zero flow)
position. Electrical continuity should now be
attained; verify by observing the continuity
For the switch to operate properly and continuity
to be established, a pin located in the switch
mounting collar must engage in a cam slot in
the internal control mechanism. When the
control handle is moved in either direction, the
pin comes out of the slot and actuates the
switch to interrupt the circuit. The continuity
should be interrupted with an equal amount of
handle rotation in both directions. If the
continuity is attained in neutral and satisfactorily
interrupted in each direction, proceed to step 8.
If continuity can not be verified in neutral,
determine the direction of handle rotation (CW
or CCW) necessary to establish continuity.
The pin which engages in the slot is mounted in
an eccentric which allows for adjustment. It is
recommended that an adjustment tool be
constructed to the dimensions shown at left for
rotation of the eccentric.
While holding the switch, loosen the switch
locknut and remove the neutral start switch.
Note the slotted eccentric adjustment within the
switch collar. Loosen the eccentric locknut
while holding the eccentric in place with the
Do not start the prime mover while
the neutral start switch is removed
from the control. Damage to the
control will result.