Special Tools; Fault Finding - Case 580SR Service Manual

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3.4

SPECIAL TOOLS

3.5

FAULT FINDING

No steering or excessive effort
required to steer
Steering wanders
Front wheels surge when steer-
ing
Noisy pump
SECTION 41 - STEERING SYSTEM
P/N CNH
380000281 Assembly tool for seal ring.
380002677 Assembly tool for ring.
380002679 Assembly tool for cardan shaft.
380002680 Assembly tool for O-ring.
PROBLEM
Incorrect oil level in tank
Air in system
Pump relief valve faulty
Worn pump
Leaking power cylinder
Damaged valve spool
Broken or damaged steering col-
umn
Damaged or worn metering ele-
ment
Excessive clearance in the ball
joints of the steering connecting
rods
Leaking power cylinder
Control valve spool sticking or
worn
Damaged or worn metering ele-
ment
Leaking power cylinder
Control valve spool sticking
Damaged or worn metering ele-
ment
Incorrect oil level in tank
Air in system
Water in oil
Worn pump
DESCRIPTION
CAUSE
Fill with the correct oil type and
quantity.
Check for loose connections or dam-
aged lines.
Bleed the system.
Check the system pressure.
Inspect and repair.
Inspect and repair.
Inspect and replace.
Inspect and replace.
Inspect and replace.
Inspect and repair.
Inspect and replace.
Inspect and replace.
Inspect and repair.
Inspect and repair.
Inspect and replace.
Fill with the correct oil type and
quantity.
Check for loose connections or dam-
aged lines. Drain the oil from the
system.
Drain and change the oil.
Replace the pump.
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CORRECTION