Lukas LC 99 - Troubleshooting

19
10. Troubleshooting
Fault Check Cause Solution
Cylinderdoesnot
extend,extendstoo
slowlyorstopswhen
extending.
Checkthe
hydraulicuidlevel
inthehandpump
supplyingtheuid.
Insu󰀩cient
hydraulicuidin
thehandpump.
Rellthehydraulicuid.
Checkthatthe
pressurerelief
valveonthehand
pumpisclosed.
Pressurerelief
valveonthehand
pumpopen.
Closethepressurerelief
valveonthehandpump.
Checkthatall
couplingsarefully
tightened.
Hydrauliccoupling
loose.
Tightenhydraulic
coupling.
Airinhydraulic
system.
Venthydraulicsystemin
accordancewith
section6.1.
Checkthecylinder
fordamage.
Cylinderpiston
jams.
Havethedamage
repairedbyanauthorised
dealer,bypersonnel
speciallytrainedby
LUKAS,orbyLUKAS
itself.
Cylinderextends,but
doesnotmaintainthe
pressure.
Checkthatall
connectionsare
fullytightened.
Leakyconnection. Tightenlooseconnection.
Checkthecylinder
forleaks.
Leakingseals. Havetheleaksrepaired
byanauthoriseddealer,
bypersonnelspecially
trainedbyLUKAS,orby
LUKASitself.
Internalleakageof
thehandpump.
Havethehandpump
servicedbyanauthorised
dealer,bypersonnel
speciallytrainedby
LUKASorbyLUKAS
directly.