New Holland LS140 Workshop Manual page 311

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CONTROL VALVE

Op. 35 724 50

1. Lower the boom and bucket to the lowered posi-

tion (resting on the ground), or remove any at-

tachment and raise the boom and rest on the

boom lock pins, 1. Roll the attachment plate to

the fully "DUMPED" position.

2. Stop the engine, turn the ignition key to the run

position and operate the boom and bucket con-

trol pedals to relieve pressure in the boom and

bucket circuits. Turn off the key.

3. Raise the seat and seat pan to the raised latched

position, 1.

4. Remove the step shield, 2, to access the gear

pump area. For more access, remove the right or

left hydrostatic control handle assembly, 3 or 4.

Do not work under a raised seat unless it is se-

curely latched in the raised latched position.

Never work under a raised boom unless it is

properly supported by the boom lock pins.

Never work under a raised boom with an attach-

ment. Always remove the attachment from the

Never loosen any hydraulic lines without first re-

lieving all pressure in the system.

Draining the hydraulic oil reservoir is not required

if the suction and return lines are capped to pre-

vent loss of oil. Drain the reservoir when the hy-

draulic system requires cleaning.

5. To drain the system, remove the small access

door, 1, at the front right corner of the engine belly

pan by removing the two rear bolts, 2, loosening

the front two bolts, 3, and sliding the door rear-

SECTION 35 - HYDRAULIC SYSTEM

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