7
5.1
MECHANICAL
DEVICE
Safety and working life of the jack is guaranteed if it works in accordance with specified
classification.
The jack is designed for class 1Bm according to the FEM 9.511 regulation – see table 5.1. (it
corresponds to mechanism classification M3 according to the ISO 4301/1).
Average daily operating time is specified in the load diagram.
Tab. 5.1 MECHANICAL CLASSIFICATION
Load diagram
(load distribution)
Definition
Load coefficient
Average daily
operating time (h)
1
(light)
Jacks usually being subject
to the low load and only in
special cases to the
maximum load.
k
≤
0,50
1 - 2
2
(mean)
Jacks usually being subject
to the low load, but quite
often to the maximum load.
0,50< k
≤
0,63
0,5 - 1
3
(heavy)
Jacks usually being subject
to the mean load, but
frequently to the maximum
load.
0,63< k
≤
0,80
0,25 – 0,5
4
(very heavy)
Jacks usually being subject
to the maximum load or load
approximating to the
maximum.
0,80< k
≤
1,00
0,12 – 0,25
Load diagram
Load diagram
Load diagram
Load diagram
1
2
3
4
Percentage of operating time
5.2.
MATERIAL
AND
FINISH
5.2.1 All parts of the jack are manufactured from steel and cast iron, the brake liners from
hardened woven fabric.
5.2.2. Materials susceptible to a creation of an incentive spar within the meaning of the Annex
No.2 Article 1.3.1 to the ministerial order No. 116/2016 of the Collection of Law and the
Č
SN EN 1127-2 article 6.4.4 and
Č
SN EN 13463-1 article 8.1 harmonized technical
standards are not used.
5.2.3. Materials with dangerous effects of static electricity within the meaning of the
Č
SN EN
1127-2 article 6.4.7,
Č
SN EN 1127-1 article 6.4.7,
Č
SN EN 13463-1 article 7.4.3 and
Č
SN 33 2030 are not used in the jack.
5.2.4 The jack does not exceed the noise value specified in the Annex No.2 article 1.7.4 letter f
of the ministerial order No. 176/2008 of the Collection of Law
(EP and RE directive No. 2006/42/EC).
Note: Articles 5.2.2 and 5.2.3 apply for jack finish to environment with explosion risk.
