J. D. NEUHAUS PROFI 25TI, Original Operation And Assembly Instructions

Page: 46 / 72

powered by air!
Page 46
MAINTENANCE
LUBRICATING THE CHAIN
The chain of the JDN Air Hoist must be lubricated in the links when
not under load.
Clean very dirty chains.
Lay the chain in a suitable container.
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, Part No. 12066 (spray can 400
ml).
For operation in areas with high corrosion potential, e.g. in the
offshore sector, the chain can be largely protected against corrosion
by the use of special lubricants. These types of lubricants are
characterised among other things by weathering resistance, water
insolubility and good adhesion properties.
Re-lubrication intervals must be stipulated in accordance with the
loading.
Please contact us, if required.
CHECKING BRAKING FUNCTION
Check the function of the brake daily as follows:
Switch the unloaded air hoist alternately between lifting and
lowering modes.
When a control element is released, the chain must be seen not to
run on.
DANGER!
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.
When checking the braking function under nominal load, the
following braking distances must not be exceeded:
BRAKING DISTANCES UNDER NOMINAL LOAD
(LOAD-CARRYING CAPACITY) AFTER LOWERING
HAS BEEN STOPPED
Type 25 TI 37 TI 50 TI
Rope control
10 7 5
All others
Controls with hose
lengths of 2m
HOSE LINES
20
14
10
D i m e n s i o n s i n [ m m ]
If the control hoses are long, the braking distances will increase
due to longer air evacuation times.