Operating and servicing instructions
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6.6
Input clutches
Safety clutches are to be used for the gearbox input. The use of rigid couplings or other input ele-
ments that can exert radial and/or axial forces must be agreed with Henschel Industrietechnik. The
contractually assured type of input is to be found in the gearbox data sheet.
When using clutches, the following is to be observed:
•
Drive unit and gearbox must be accurately aligned. Incorrect axle or angular offset can result in
premature failure. The limits from the supplier of the clutch apply.
•
From a peripheral speed of 30m/s at the outside diameter on the clutch, dynamic balancing is
required. Here the information from the clutch manufacturer must be observed.
6.7
Belt pulleys
For certain types, it is possible to provide drive using a belt pulley.
A belt pulley is only allowed to be used if this input variant is recorded in the gearbox data
sheet.
The unauthorized fitting of a belt pulley can result in shafts shearing, bearing and gear damage.
•
Belt pulleys are to be fitted to the end of the input shaft with the aid of thrust plates and bolts
using thread centering or by other suitable means.
•
Fitting by hitting and striking is not allowed as parts inside the gearbox may be damaged in this
way.
•
The maximum permissible belt tension (force applied at the middle of the key) must not be ex-
ceeded, as otherwise the input shaft may be subject to excessive bending and damage caused
to the bearings and seals. The values given in the gearbox data sheet are general figures. In
case of doubt, consult Henschel Industrietechnik.
•
The belt is only allowed to be tensioned in the directions given by Henschel Industrietechnik.
Failure to observe this instruction can result in premature damage. In case of doubt, consult
Henschel Industrietechnik.
•
Belt tension must always be applied at the middle of the key. The use of excessively wide belt
pulleys is to be avoided.
•
The holes on the belt pulleys used should not have sharp edged transitions at the front face.
Belt pulleys with rounded transitions reduce stressing at the edges and thus help to prevent
damage to the input shafts.
•
Following installation, the V-belt is to be protected against accidental contact by means of a
suitable safety guard.
6.8
After installation
•
Following installation, all rotating parts are to be protected against accidental contact by means
of suitable safety guards.
•
Any guard supplied, if removed, must be re-fitted.
•
By referring to the delivery paperwork and the assembly drawing, it is to be checked whether all
devices that may have been removed from transport or other reasons have been re-fitted.