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Lukas – Lukas Compact Units User Manual

Page 33

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33

Trouble

Cause

Solution

Fluid leaks from the

hydraulic fluid reservoir

(especially from the filler

screw)

Due to hydraulic fluid

returning from the

implement, the maximum

capacity of the tank is

exceeded

Reduce the level in the

hydraulic fluid reservoir to

the mark on the dipstick or

inspection glass

Defective seal

Have repaired by

authorised dealer or

directly by LUKAS

Leaking fluid between

engine and flange bearing

Radial shaft seal on the

drive shaft is defective

Have repaired by

authorised dealer or

directly by LUKAS

Hydraulic fluid milky and

cloudy

Water / condensation in

the system

Immediately replace

hydraulic fluid

With quick-disconnect

coupling system: hose

assembly cannot be

coupled

Pressurised

Switch the control unit to

depressurised circulation

Defective hydraulic

coupling

Hydraulic coupling needs

to be replaced immediately

With quick-disconnect

coupling system: Leak in

the coupling (male)

Safety valve reacted

After pressure release,

there is no more leakage.

Defective hydraulic

coupling

Hydraulic coupling nipple

needs to be replaced

immediately

With quick-disconnect

coupling system: Leak in

the coupling (female)

Defective hydraulic

coupling

Hydraulic coupling sleeve

needs to be replaced

immediately

Hydraulic fluid leak on the

hoses or the connections

Leak, possible damage

Replace hoses

Damage on the surface of

the hydraulic hoses

Mechanical damage or

contact with aggressive

agents

Replace hoses

If it is not possible to rectify the malfunctions, inform an authorised LUKAS dealer or the

LUKAS Customer Service department immediately.

The address of the LUKAS Customer Service Department is:

LUKAS

Hydraulik GmbH

Weinstraße 39, D-91058 Erlangen

Postfach 2560, D-91013 Erlangen

Tel.: (+49) 09131 / 698 - 348

Fax.: (+49) 09131 / 698 - 353