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Bosch Rexroth AG, General Operating Instructions HYDROTRAC GFT 8000 series 40, RE 79022-01-B/04.2020
9 Operation
The planetary gearbox is a subassembly that does not require any settings or
changes in operation. The chapter of these operating instructions does therefore
not include any information on setting possibilities. Only use the planetary
gearbox within the performance range described in the technical data. The
machine/vehicle manufacturer is responsible for the correct design of the
hydraulic system and its control.
Danger of property damage and personal injury!
The static multiple-disk parking brake (parking brake) of the planetary gearbox is
a safety device. If the pressure liquid for the static multiple-disk parking brake is
contaminated, the static multiple-disk parking brake and thus the planetary
gearbox can block in undefined position. This way, the stopping function of the
static multiple-disk parking brake is no longer warranted!
Switch off hydraulic pressure when the planetary gearbox is blocked.
Avoid contamination caused by unclean pressure fluids, rubbed-off parts or
residual dirt from system components.
Ensure proper installation of an emergency stop function, so that the
consumer driven machine can be brought into a safe situation.
Always replace the disks, the springs and the sealing elements per axle after a
functional impairment or thermal overload and by any repair work on the
multiple-disk parking brake.
The service life of the HYDROTRAC GFT 8000 planetary gearbox depends on the
proper assembly, installation, commissioning and application conditions, such
as for following factors, for example: speed, torque, duty cycle, operating
conditions and temperatures.
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