Lincoln Electric Ranger 305D Service Manual page 70

F-16
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The engine shuts down shortly after
starting.
The engine shuts down shortly after
starting and trips the battery circuit
breaker, (CB7).
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely,
contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-888-935-3877.
All manuals and user guides at all-guides.com
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE AND IDLE PROBLEMS
1. Check for adequate supply of
clean, fresh fuel.
2. Check fuel and air filters, replace
if necessary.
3. Check oil level, add oil as
required, and look for oil leak-
age.
4. Check for loose or faulty battery
cable connections.
1. Try resetting circuit breaker. If it
trips again, do not attempt to use
the machine.
2. Contact a Lincoln Authorized
Field Service Facility.
Note: Repeated tripping and reset-
ting of the circuit breaker can dam-
aged it, or alter its trip point. If the
breaker has been tripped and reset
many times, it should be replaced.
CAUTION
RANGER 305D
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. The oil pressure switch or
coolant temperature switch may
be faulty.
2. Check for faulty run/stop switch
or engine protection relay.
3. Check for damaged insulation in
the wiring between the engine
projection relay and the oil pres-
sure and coolant temperature
switches. See wiring diagram.
4. Check for poor electrical con-
nections at the run/stop switch,
the engine protection relay, the
D4 diode bridge, and the fuel
solenoid. See wiring diagram.
5. The fuel solenoid may be faulty.
Perform the Fuel Solenoid Test.
1. Examine the CB7 circuit breaker,
run/stop switch, stop button,
Shut-down and idle solenoids,
pull coil PC board, engine pro-
tection relay, fuel gauge and
sender, alternator, and all the
wiring connecting these compo-
nents. Look for any damaged or
out of place wiring that may be in
contact with other conductors or
chassis ground. See the wiring
diagram.
2. Perform the Idle Solenoid Test.
Perform the
Solenoid Test.
3. The Pull coil PC board may be
defective. Disconnect lead 232
from terminal B1 of the pull coil
PC board and insulate it or posi-
tion it so it does not come into
contact with chassis ground or
any other conductor. Start the
engine; if the engine continues to
run and the CB7 circuit breaker
does not trip, the pull coil PC
board is probably defective and
should be replaced.
F-16
Shutdown