New Holland LS140 Workshop Manual page 459

PROBLEM
EIC will not read correct engine
RPMs, varies more than ± 50 RPMs
EIC will not unlock boom and bucket
spool locks
SECTION 55 - ELECTRICAL SYSTEM
POSSIBLE CAUSE
Incorrect engine configuration
No AC voltage at tachometer
terminal at alternator
Loose or corroded connection at
tachometer terminal at alternator
No AC voltage at EIC board from
alternator
AC voltage from alternator to EIC
board
Wire connection from alternator
to EIC board
Service/Run switch
"SERVICE" position
Seat belt unbuckled
Faulty seat belt buckle
No battery voltage from seat belt
switch to EIC
No battery voltage from EIC to
spool lock solenoids
Battery voltage to lock solenoids
55-34
Copyright © New Holland
CORRECTION
Correct configuration
Repair alternator
Repair connection
Open in wire from alternator to EIC
board, repair open
Repair loose or
connection at EIC board
If OK, replace EIC board
in Push switch to "RUN" position
Buckle seat belt
Replace seat belt assembly
Open in power wire from seat belt
switch, repair open
Open in power wire from EIC to
solenoids, repair open
If OK, check inoperative solenoids,
check solenoid coils, repair or
replace
corroded