34/64 HYDROTRAC GFT >130 kNm | Assembly
Bosch Rexroth AG, Issue 10.2019, RE 79094
7.6 CONNECTING THE STATIC MULTIPLE-DISK PARKING
BRAKE
Your planetary gearbox is/may be equipped with a static multiple-disk parking brake
to serve as parking brake.
WARNING
Risk caused by the failure of the static multiple-disk parking brake!
The static multiple-disk parking brake is a safety device of the planetary gearbox.
The improper connection of the static multiple-disk parking brake or its use as
dynamic brake (using the multiple-disk parking brake for braking the vehicle) may
result in its destruction!
f Operate the static multiple-disk parking brake only after a complete stop of the
vehicle.
f Always observe that the integrated multiple-disk parking brake that is only
intended as parking brake must be inspected and maintained by our service
after dynamic braking.
f Always replace the disks, springs and sealing elements per axle after any
malfunction, thermal overload and during any repair work on the multiple-disk
parking brake.
f Ensure maximum cleanliness when connecting the multiple-disk parking brake.
f Make sure that neither dirt nor foreign substances penetrate in the brake
release connection.
f Ensure that the brake release connection is carefully sealed.
f Assemble hydraulic lines and hoses without mechanical stress.
f Use e.g. copper sealing rings according to DIN 7603 as sealing means.
f Make sure that no dynamic pressure occurs in the brake line.
f Only use pressure uid based on mineral oil for operating the static multiple-
disk parking brake.
f Avoid contamination caused by unclean pressure uids, rubbed-off parts or
residual dirt from system components.
f Observe by all means the specications for release pressure and maximum
brake release pressure. Also make sure that the minimum release pressure is
observed so that the multiple-disk parking brake can be completely released.
f Observe by all means the specications on the gear unit dimensioned drawing
when connecting the static multiple-disk parking brake. These can be found
in appendix D“Technical data / Drawings” of the material number-specic
operating instructions.
Danger of delayed holding of the static multiple-disk parking brake!
The delayed application of the static multiple-disk brake may cause the vehicle to
roll away accidentally.
f Make sure that the brake line of the static piston is pressureless within 0.5 s
CORRECTION COPY 1 |17.10.2019 | ONLY FOR INTERNAL USE
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