New Holland LS140 Workshop Manual page 308

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Electrical test procedure:

1. Lower the boom and attachment to the ground or

remove any attachment, raise the boom, and rest

the boom on the boom lock pins at 1.

2. Raise the seat and latch securely in the raised

latch position, 1. Remove the step shield, 2, from

over the control valve to access the solenoid

Do not work under raised seat unless securely

latched in the raised position.

3. Unplug the solenoid, 1, one at a time, and check

for battery voltage at the main wire harness

plugs, pink/light-blue and black wires. The oper-

ator must be in the seat with the seat belt buckled

and the ignition key in the "ON" position.

NOTE: If both solenoids are unplugged, the EIC will

show an F0A code and there will be no voltage from

the EIC to the solenoids.

4. If there is battery voltage at the solenoids, re-

move the coils and check their operation. If the

plunger moves in when power is applied, check

for binding when the coil is threaded into the

body. Check for spool centering to allow the coil

plunger to seat into the groove in the spool.

If the lockout solenoids are loosened or removed

from the control valve body, the pedal(s) are no

longer locked. Pedal or hand control movement

will result in spool movement and boom/bucket

SECTION 35 - HYDRAULIC SYSTEM

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