J. D. NEUHAUS JDN mini Series Operation And Assembly Instructions
Also see for JDN mini 1000: Installation and operation manual
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Contents
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FAU LT TA B L Epowered by air!FAULT S, C AUSE AND REMEDYPage 42FAULT S, C AUSE AND REMEDYFault Possible cause RemedyLifting not possible Air pressure too low Increase air pressure to the relevant valueEMERGENCY STOP switch When danger is eliminated,is pressed release the EMERGENCY STOP switchHand control is faulty Have hand control repairedOnly very slow lifting Brake does not release fully Set air pressure to the relevant value,is possible Check seal of brake piston andchange seal if necessaryCheck the adjustment of the brake piston(see Spare Part List)Brake lining worn Replace brake liningor unevenMotor cover bolts loose Tighten boltsAir supply hoses are Check connections of air supply hose andleaking or loose control hoses and connect properlyCross section of air line Use air line with sufficiently largetoo small diameter (check air pressure)Dirt in the service unit* Clean the service unit,Filter blocked ensure better air qualitySilencer is Replace the silencer elementsclogged or clean, improve air quality if necessaryMotor vanes worn Replace motor vanesMotor has run dry Lubricate motor,Check oiler*Control valve on motor Have the control valve repairedExcessive running on during braking Brake disc and/or Replace brake disc and/orbrake piston worn brake pistonLoud chain noise Chain dry Lubricate chainat chain sprocket Chain worn Replace JDN chain with new JDN chainChain sprocket worn Replace chain sprocket, check chain guide,replace if necessaryWrong chain drawn in Identify chain and replace withJDN chain if necessaryLifting or lowering speed Adjustment of Correct adjustment of brake piston. At highreduced at higher lifting heights brake piston too tight ambient temperatures perform adjustmentor motor comes to a standstill with the device warmed up accordingly*if installed |
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