DTSL3/FRMKIIUSER’SMANUAL
18
Chapter
C hapter
Chapter
Chapter6
6
6
6OPERATION
O PERATION
OPERATION
OPERATION
Downoilloopvalveimmediately.
Theprocessofmanualoperation:
-Switchoffthepowerbutton(avoidabruptlyincomingelectricity).
Openthesmallroundcoverofcontrolboxtofindtheel ectromagneticvalveAforlowering.
-Loosenmanualoilloopstudattheendofloweringelectromagneticdescentvalvecore,
Andthentheplatformsbegintodescend.
-Afterthemachinehasbeendescended,screwdowndescentvalve’sstudtimely.Theprocessofmanualloweringcomestotheend.
Chapter
Chapter
Chapter
Chapter7
7
7
7MAINTENANCE
M AINTENANCE
MAINTENANCE
MAINTENANCEAND
A ND
AND
ANDC ARE
C ARE
CARE
CARE
Skilled
killed
killed
killedpersonnel
p ersonnel
personnel
personnelonly
o nly
only
onlyare
a re
are
areallowed
a llowed
allowed
allowedto
t o
to
toperform
p erform
perform
performthe
t he
the
theoperations.
o perations.
operations.
operations.
-Allbearingsandhingesonthismachinemustbelubricatedonceaweekbyusinganoilier.
-Theupperandlowerslidingblocksandothermovablepartsmustbelubricatedonceomonth.
-Thehydraulicoilmustbereplacedonetimeeachyear.Theoillevelshoul dalwaysbekeptatupperlimitposition.
Themachineshouldbelowertothelowestpositionwhenreplacehydraulicoil,thenlettheoldoilout,andshouldbefilteringthe
hydraulicoil.
-Eachteamcheckstheagilityandreliabilityofpneumaticsafetyequipment.
Chapter
C hapter
Chapter
Chapter8
8
8
8TROUBLESHOOTING
T ROUBLESHOOTING
TROUBLESHOOTING
TROUBLESHOOTING
Skilledpersonnelonlyareallowedtoperformtheoperations.
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Symptom
Symptom
Symptom
SymptomCause
C ause
Cause
CauseTroubleshooting
T roubleshooting
Troubleshooting
Troubleshooting
Themotordoesnot
runinlifting
operation.
①Connectionofpowersupplywiresis
notcorrect.
Checkandcorrectwireconnection
②TheACcontactorinthecircuitof
themotordoesnotpickup.
Ifthemotoroperateswhenforcingthecontactordownwithan
isolationrod,checkthecontrolcircuit.Ifthevoltageattwoendsof
thecontactorcoilisnormal,replacethecontactor.
③
Thelimitswitchisnotclosed.Checkthelimitswitch,wiresandadjustorreplacethelimitswitch.
Inliftingoperation,
themotorruns,but
thereisnolifting
movement
①Themotorturnsreverse.Changethephasesofthepowersupplywires.
②Liftingwithlightloadisnormalbut
noliftingwithheavyload.
Thesetsafepressureoftheover-flowvalvemaybeincreasedby
turningthesetknobrightwardslightly.
Thespooloftheloweringsolenoidvalveisstuckbydirt.Cleanthe
spool.
③Theamountofhydraulicoilisnot
enough.
Addhydraulicoil.
④Thedescentvalveisenergizedbut
doesnotwork.
Checktheplugandcoilofthedescentvalveandchecktherightturn
tightnessofitsendcoppernutandsoon.
⑤
The“antiknockvalve”isblocked.
Removethe“antiknockvalve”fromtheoilsupplyholeatthe
bottomoftheoilcylinder,andcleanthe“antiknockvalve”.
Themachinelowers
extremelyslowly
undernormalloads.
①Thehydraulicoilhastoohigh
viscosityorfrozen,deteriorated(in
Winter).
Replacewithhydraulicoilinaccordancewiththeinstructionbook.
②The“antiknockvalve”for
preventing
oil
pipeburstisblocked.
Removethe“antiknockvalve”fromtheoilsupplyholeatthe
bottomoftheoilcylinder,andcleanthe“antiknockvalve”.
Therightandleft
platformsarenot
synchronousandnot
inthesameheight.
①
The
air
intheoilcylinderisnotvent
completely.
Referto“Ⅶ.OilMake-up‘Adjust’Operation”.
②Oilleakageon
oil
pipeoratits
connections.
Tightenoilpipeconnectionsorreplace
oil
sealsandthenmake-up
oilandadjustlevelness.
Noisyliftingand
lowering.
①Lubricationisnotenough.
Lubricateallhingesandmotionparts(includingpistonrod)with
machineoil
②Thebaseorthemachineistwisted.Adjustagainthelevelnessofthemachine,andfillorpadthebase.
Table2