14.3 Cleaning Notes
The surface of the foil as well as the display
seal are dissolved by solvents!
● Do not use any solvents (e. g. diluents)!
● No high pressure cleaning devices are to be used!
● To remove dirt from the front panel, only use a moist cloth
14.4 Fuse
The semiconductor fuse is not intended for replacement!
Use a semiconductor fuse to protect the device. After the fuse has
triggered, disconnect the device from the supply voltage so that the
semiconductor fuse can regenerate. The regeneration takes approxi-
mately 20 seconds at an ambient temperature of 20 °C. The higher
the ambient temperature, the longer the regeneration phase.
14.5 Regular Maintenance Tasks
● At least once a year, all plug and terminal connections of the components are
to be checked regarding proper tightness and possible damage
● Make sure that cables are not broken or crimped
● Replace damaged parts immediately.
15
Ordering Information
15.1 Accessories and Spare Parts
For ordering information about accessories and spare parts, please refer to
chapter 5 "Spare Parts, Accessories and Wear Parts" on page 5.
VR 21
Bosch Rexroth AG
Ordering Information
DOK-SUPPL*-VR21**.01**-IT02-EN-P
21/29
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