TROUBLE SHOOTING
Low hydraulic fluid level.
Air leaking into suction side
of hydraulic pump.
Hydraulic fluid foaming due
to improper hydraulic oil
usage.
Hydraulic hoses connected
incorrectly.
Correct hydraulic hose connections.
Aeration of Hydraulic
Fluid(Generally indicated by
foamy apperance of fluid).
Swing, Boom,
Dipperstick and Bucket
Cylinders
Cylinders operate in wrong
direction relative to control
valve lever position.
Control valve linkage broken.
Low system pressure
supplied from hydraulic
pump.
Check cylinders for internal leakage as described
in service section under cylinder leakage tests.
Cylinder piston assembly
defective(not sealing)
control valve blockage.
Check and refill hydraulic system to proper level.
Check for loose or defective connections
between reservoir and hydraulic pump.
Refer to Tractor Operator's Manual and replace
hydraulic oil using recommended hydraulic oil.
Inspect for blockage. Disassemble valve if
necessary.
Check system pressure.
Repair or replace pump.
Hydraulic hose or tubeline
blockage.
Check for evidence of damage to hoses or
tubelines that would block flow of oil between
cylinders and control valve.
Inspect. Repair as required.
Quick disconnect coupler(s)
are not fully connected or
"Flow Check"
Check coupler connections.
Replace coupler(s) if necessary.
Check for damage(kinked) hoses, etc.
Hydraulic hoses to/from
control valve blocked
Backhoe control valve or
tractor main relief valve stuck
open.
Check system pressure. Repair or replace relief
valve. Refer to the Tractor Operator's Manual
Low hydraulic fluid level. Check and replenish hydraulic fluid.
Check and correct hydraulic hose connections.
Hydraulic hoses connected
improperly.
This Trouble Shooting Chart is provided for reference to possible backhoe operational problems.
Determine the problem that best describes the operational problem being experienced and eliminate the
possible causes as listed by following the correction procedures.
PROBLEM CORRECTIONPOSSIBLE CAUSE
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