J. D. NEUHAUS JDN mini Series, Operation And Assembly Instructions

Page: 34 / 48

powered by air !
M A I N T E N A NC E
Page 34
The chains of JDN Air Hoist must be lubricated
in the links, in unloaded condition.
왘
Clean heavily contaminated chains.
왘
Lay the chain in a suitable container.
왘
Spray the chain with special lubricant or
motor vehicle engine oil.
If you wish to lubricate the hanging chain, ensure
that the chain links are oiled at the points of contact.
For this purpose, move the chain to and fro.
A high-performance lubricant in an aerosol can is
available from JDN, which adheres well to the chain
after the solvent has evaporated and does not drip off,
Art. no. 12066 (aerosol 400 ml).
For operation in areas with high corrosion potential,
e.g. in the off-shore sector, the chain can be largely
protected against corrosion by the use of special
lubricants.
These types of lubricants are characterised by
weathering resistance, water insolubility, good
adhesion properties etc. Re-lubrication intervals
must be stipulated in accordance with the loading.
Please contact us, if required.
Check the function of the brake daily as follows:
왘
Switch the unloaded air hoist alternately between
lifting and lowering modes.
If a control element is released, the chain must be
seen not to run on.
DA N G E R !
If the chain runs on, do not use the hoist.
The hoist must be repaired.
For physical reasons, the braking distance cannot
have the value zero. However, for the purpose of this
functional check, running on of the chain must not
be perceptible.
If the control hoses are long the braking distances
will increase due to longer air evacuation times.
Check that the direction of movement of the load hook
corresponds to the direction indicated by the arrows on
the control elements.
왘
Inspect buffers for damage daily.
If considerable damage is found at the buffer,
or if it is completely destroyed, a length of 20 cm
must be cut from the chain directly above the
load hook to prevent breakages.
왘
Replace buffer at annual inspection, inspect
buffer discs for damage, replace if necessary.
DA N G E R !
Hook travel limit buffers are for emergency
use only, repetitive impact of buffers is not
allowed!
DA N G E R !
If the buffer is damaged, do not use the
hoist.
The hoist must be repaired
(replace the buffer).
C H E C K I N G L I F T I N G A N D
L OW E R I N G L I M I T E R S
C H E C K I N G D I R E C T I O N O F M O V E M E N T
C H E C K I N G B R A K I N G F U N C T I O N
L U B R I C AT E T H E C H A I N
Type mini mini mini mini
125 250 500 1000
Pushbutton
84 60 36 48 control with
2 m hose length
Dimensions in mm
BR AKING DIS TANCE UNDER NOMINAL LOAD
(LOAD-C ARRYING C APACIT Y) AFTER LOWERING
HAS BEEN S TOPPED