New Holland WorkMaster 50 Service Manual page 664

Problem
Engine does not continue
to run when operator is
not in seat, transmission
is in neutral, PTO is on,
and park brake is engaged
Electrical systems - Harnesses and connectors
Possible Cause
Blown 3 A diode.
Malfunctioning fuel shutoff solenoid.
Defective operator safety module.
Open wiring in safe operation circuit.
Defective range neutral switch,
switch, or 3 A diode.
47866583_ 02/12/2015
55.4 [55.100] / 99
Correction
Check diode, replace if necessary.
Test fuel shutoff solenoid and replace as
necessary.
Test module and replace as necessary.
Check for loose connectors, grounds, and
wiring damage.
PTO Test components and replace as neces-
sary.