FAU LT TA B L E
powered by air !
FAU LT S , C AU S E A N D R E M E DY
Page 42
FAU LT S , C AU S E A N D R E M E DY
Fault
Possible cause
Remedy
Lifting not possible
Air pressure too low
Increase air pressure to the relevant value
EMERGENCY STOP switch
When danger is eliminated,
is pressed
release the EMERGENCY STOP switch
Hand control is faulty
Have hand control repaired
Only very slow lifting
Brake does not release fully
Set air pressure to the relevant value,
is possible
Check seal of brake piston and
change seal if necessary
Check the adjustment of the brake piston
(see
Spare Part List
)
Brake lining worn
Replace brake lining
or uneven
Motor cover bolts loose
Tighten bolts
Air supply hoses are
Check connections of air supply hose and
leaking or loose
control hoses and connect properly
Cross section of air line
Use air line with sufficiently large
too small
diameter (check air pressure)
Dirt in the service unit*
Clean the service unit,
Filter blocked
ensure better air quality
Silencer is
Replace the silencer elements
clogged
or clean, improve air quality if necessary
Motor vanes worn
Replace motor vanes
Motor has run dry
Lubricate motor,
Check oiler*
Control valve on motor
Have the control valve repaired
Excessive running on during braking
Brake disc and/or
Replace brake disc and/or
brake piston worn
brake piston
Loud chain noise
Chain dry
Lubricate chain
at chain sprocket
Chain worn
Replace JDN chain with new JDN chain
Chain sprocket worn
Replace chain sprocket, check chain guide,
replace if necessary
Wrong chain drawn in
Identify chain and replace with
JDN chain if necessary
Lifting or lowering speed
Adjustment of
Correct adjustment of brake piston. At high
reduced at higher lifting heights
brake piston too tight
ambient temperatures perform adjustment
or motor comes to a standstill
with the device warmed up accordingly
*if installed
Summary of Contents for JDN mini 1000
Page 47: ...powered by air NOTES Page 47 ...