4.
5.
6. If the Drill Solenoid is stuck open or clogged, Perform procedure 21.50,
Unclogging the Drill Solenoid.
Fig 19b
Press and hold the manual override button on the Drill solenoid.
If the carriage does not tilt toward the front of the machine, then the Drill Solenoid
may be stuck closed or clogged.
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids