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Trouble Shooting
On the following page, we have listed many of the causes and solutions to issues that you may encounter.
If you encounter a issue that is difficult to solve, even after having read through this trouble shooting section, please call
your local distributor or dealer. Before you call, please have this Operator's Manual and serial number ready.
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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Hydraulic cylinder malfunctioning
Low hydraulic fluid level
Check and replenish hydraulic fluid.
Improper hose hookup
Check and correct hydraulic hose
connections.
Broken hydraulic line
Check for leaks and replace line.
Quick disconnect coupler(s) are
not connected
. Check flow
Check coupler connections.
Replace coupler(s) if necessary.
Hydraulic hose blockage
Check for evidence of damage to hoses
that would block flow of oil between
cylinders and control valve.
Hydraulic fluid leaking past seals
Replace seals.
Aeration of hydraulic fluid
(
generally indicated by foamy
appearance of fluid
).
Low hydraulic fluid level
Check and refill hydraulic system to proper
level.
Hydraulic fluid foaming due to
improper hydraulic oil usage
Refer to Power Unit’s manual and replace
hydraulic oil using recommended hydraulic
oil.
Hydraulic oil heating
Dirty oil
Drain and refill oil, replace filter.
Partially plugged inlet filter
Clean filter element.
Oil too light in hot weather
Use recommended oil.
Damaged oil lines
Replace oil lines.
External hydraulic fluid leakage
Broken oil lines
Replace hose and check for leaks.
Loose hydraulic connection
Tighten loose connections.
Cold hydraulic fluid
Allow hydraulic fluid to warm up to
operating temperature.
Hydraulic pump capacity
inadequate
Engine R.P.M. too slow
Increase engine R.P.M.
Low hydraulic fluid supply
Refer to power u
nit’s manual for service
recommendations.
Hydraulic hose restriction
Check for evidence of restriction in
hydraulic hoses.
Grab hooks do not activate as
required
Connecting linkage bent
Replace compromised parts.
Lack of lubrication
Apply lubricant on pivot points.
Excessive wear on pivot points
Replace worn parts.
Summary of Contents for BK48LF
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