Operating Instructions
2K120/2K121
Initial
Installation
19
3.5
Output
3.5.1
Version with belt output
The belt pulley must be centered on the outer
diameter of the output flange (tolerance K6),
fastened with the bolts so that it is frictionally
engaged and secured. Comply with the specified
tightening torques.
The belt pulley should be balanced to quality 6.3
as per VDI Directive 2060 in order to ensure low-
vibration operation.
CAUTION
Note the maximum specified tensioning force when
tightening the belts in order to prevent bearing
overload.
The average belt force must be between the
bearings. When assembling, it must be possible to
easily slide the belt pulley onto the output shaft.
Heat the belt pulley if necessary.
3.5.2
Version with coaxial output
In the case of the version with coaxial output
(shaft stub), also note the balancing type for the
output (see chap. 3.2). The gearbox is delivered
with full-key balancing.
Refer to the installation drawing for the fitted key
dimensions. Always fix the fitted key using a
threaded pin.
3.5.3
Version with TSC
The version with TSC (Through Spindle Coolant) is
used for carrying cooling lubricant, hydraulic oils
or air/oil mixtures
1)
through the gearbox to the
spindle. A rotary transmission lead through is
necessary to ensure that the fluid can be conveyed
in a ratio operating at differential speed. This lead
through is subject to wear depending on the load
and the status of the medium. The warranty for the
rotary transmission lead through is limited to 12
months.
Information about the product, function, operation
and installation of the rotary transmission lead
through can be found in the operating instructions
4161 758 030 (German)
4161 758 130 (English)
CAUTION
1)
No abrasive or solvent additives are permitted in
the fluids.
3.6
Electrical connection, gearchange
The gearbox is electrically connected using the
supplied 8-pole Harting connector (HAN 8 U). The
plug-in connection is located on the shift unit.
3.6.1
Shift unit
Technical data:
Standard and neutral position 120 W
Supply voltage
24 V DC ± 10 %
Power consumption
5 A
Index of protection
IP64
The required cable lead diameter is 1.5 mm².
The 24 V DC connection voltage and 5 A power
consumption must be assured on the shift unit
connector.
Losses due to cable length and transition resistors
must be taken into account.
Scope of supply:
Sleeve housing, screw connection, socket insert
and 8 jacks, type Harting AWG16. The shift unit is
only available as a complete part.
