J. D. NEUHAUS Profi 025Ti, Руководство по эксплуатации

Страница: 45 / 218

Move the unloaded load hook until just short of the
upper and lower end positions.
Stop immediately before reaching the end position
and then carefully (by repeatedly pressing the control
element) move to the end position.
The movement of the chain must be stopped due to
deformation of the buffer. For hoists with overload
protection, the lifting movement is additionally limit-
ed by shutting off the motor.
Following successful testing, the buffer must be
unloaded.
DA N G E R !
If the buffer is damaged, do not use the
hoist. The hoist must be repaired (replace
the buffer).
All control elements of the controls must always be
free-moving.
Unload the JDN Air Hoist.
Briefly actuate and release all control elements of the
controls one after another. The control elements must
return to their initial positions immediately. The
switching on and off function must operate correctly.
PRESS the EMERGENCY STOP button. Each movement
of the hoist must stop. Actuation of the control ele-
ments must not cause a lifting or lowering movement.
RELEASE the EMERGENCY STOP button by turning.
DA N G E R !
If a control element is stiff or
remains in the actuated position,
do not use the hoist. The controls must
be repaired.
Check that the direction of movement of the load
hook corresponds to the direction indicated by the
arrows on the control elements.
Irrespective of the stipulated inspection intervals, the
silencer must be checked for permeability if the hoist
does not achieve the specified lifting speed (see section
Technical data, page 63).
The test is performed by comparing the lifting speeds
under nominal load, with and without the silencer.
The speed with standard silencer or filter silencer must
be at least 80 % of the lifting speed without a silencer
element.
In the case of lower values, the silencer elements
must be cleaned or replaced.
C H E C K I N G T H E S I L E N C E R
F O R P E R M E A B I L I T Y
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 C O N T R O L S A N D
E M E RG E N C Y S T O P F U N C T I O N
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
powered by air !
M A I N T E N A NC E
Page 45