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6- Mechanical Installation
The mounting plate must be rigid enough not allowing torsions, flat enough to prevent
strains by tightening the bolts and stable enough not allowing vibrations. By using chain
drives this becomes much more important because of the polygon effect on chain drives.
According to your connection elements the maximal permitted radial and axial load of the
gear unit must be in accordance with your application. Check the product catalogue for
permitted radial loads and calculation.
If the output or input shaft is overloaded by radial or axial loads it can cause serious dam-
age to the gear unit.
Secure the gear unit using 8.8 or higher quality bolts.
All bolts are locked by use of locktide adhesives or gear-shims on the gearbox. By assem-
bling the gear unit locktides adhesives or gear-shims must be used to prevent loosening
of bolts.
Cover all the turning parts from human entering or touching. Turning parts can cause se-
vere or fatal injuries.
For different kind of basic installations refer to the following illustrations.
Only ATEX-approved input and output elements are allowed to be used, assuming the ele-
ments are subject to Directive 94/9/EC
6.1- Installing gear units in category II2G/D-II3G/D
Explosion-proof gear units comply with the design requirements for unit group II, catagory
2G,2D,3D,3G. These units are intended for use in zones 1 and 21.
The gear units in catagory II2D must be used in ambient teperature between -20 C to +40
C only. If different ambient conditions this must be inforned before order and the name
plate must be in accordance with the ambient conditions.
The temperature class depends on the speed, type and mounting position of the gearbox
and is indicated on the name plate. Temperature classes from T4 to T6 are provided by
YILMAZ REDUKTOR.
The surface temperature of the gearbox must not exceed the provided max. surface tem-
perature on the name plate. After all installations finished and the gearbox is started up
according this manual let the gear unit run 4 hours at full load and check the surface tem-
perature and the ambient temperature. Check the following;
(40-Ta)+Tw < Tmax. of nameplate ( Ta: Ambient Temp., Tw: Surface Temp)
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Operating Instructions
V Series
YILMAZ REDÜKTÖR
Installing
