J. D. NEUHAUS PROFI 25TI, Оригинальное руководство по эксплуатации и сборке

Страница: 40 / 72

powered by air!
Page 40
MAINTENANCE
MAINTENANCE
MAINTENANCE AND
INSPECTION INTERVALS
JDN Air Hoists are extremely robust and require little maintenance.
Compliance with maintenance and inspection intervals is of great
importance in order that the hoist operates safely and reliably over a
period of many years.
CAUTION!
Maintenance work on JDN Air Hoists must only be
performed by trained and qualified personnel.
CLEANING AND CARE
If your JDN Air Hoist is often used at different locations, particularly
in dirty and damp environments,
clean any dirt off the hoist and the chain,
seal off the air supply connections,
protect the hoist and, in particular, the chain from corrosion,
store the hoist in a clean, dry place.
SPARE PARTS
If, during repair work, the replacement of components is necessary,
only original JDN spare parts may be installed.
LUBRICANTS
See section Lubricants, page 28.
INSPECTION AND REPAIRS
Series lifting equipment is classified into groups and dimensioned
according to the type of operation (Driving mechanism classification
according to ISO/FEM). The average daily operating time and the
load spectrum determine the classification. This is assuming that the
lifting and lowering paths are approximately the same.
For devices used mainly in vertical operation (from 75% of on-time),
the theoretical operating time is reduced due to the higher lowering
speed in the range from 50% to 100% of the nominal load.
Therefore, the determined portion of the theoretical operating time
must be multiplied by a factor of f
v
.
The factor f
v
has a value of 1 to 50% of the nominal load, increasing
linearly to 1.5 at 100% of the nominal load (nominal load percentage
P).
%) 50 (
50
50
5 . 0 1
>
−
+ =
P for
P
f
V
In order to achieve safe operating periods, the company must check
that the theoretical operating time has been achieved during each
inspection, by the person responsible. This must be documented in
the inspection log at least once annually. The inspection log is only
required in the Federal Republic of Germany. Please contact us if
you require an inspection log.
Instructions and a model for determining the actual operating
time can be found from page 42 onwards.
When the theoretical operating time has been reached, a general
overhaul must be performed. Detailed explanations for the
determination of the actual operating time and its documentation
can be found in the national safety regulations. Alternatively, the
calculation model in these operation instructions can be used. The
general overhaul must be initiated by the operator and must be
documented in the inspection log. Information on general overhaul
can be requested from the manufacturer.