STARTING MOTOR SOLENOID (PRESTOLITE) REPAIR - CONTINUED
TESTING - CONTINUED
Before making final connection between power supply and knife switch, contacts of knife switch must be in
the open position. Failure to follow this procedure may result in damage to equipment.
Connect battery negative wire to knife switch.
Do NOT allow test circuit to stay on more than 15 seconds. Overheating will occur in solenoid. Failure to
follow this procedure could result in damage to equipment.
Steps 7 through 9 adjust the carbon pile for nominal 23 volts across solenoid terminals. Steps should be
repeated as necessary to get the required 12 volts indicated on the voltmeter. Circuit must not be on for more
than 15 seconds. Allow 3 minutes for solenoid to cool before proceeding.
Close knife switch to energize test circuit.
Adjust carbon pile while observing voltmeter. Set for 12 volts on voltmeter.
Open knife switch to de-energize test circuit.
If steps 7 through 9 are to be repeated, wait three minutes for solenoid winding to cool. Failure to follow this
procedure could result in damage to equipment.
Repeat steps 7 through 9 as necessary for 12-volt reading.