8
Maintenance and repair
8.1
Cleaning and servicing
Danger! Electric voltage! Operations in the vi‐
cinity of live parts are extremely dangerous.
WARNING
Any work required on the electric system may be carried out
only by skilled electricians. Tools for electricians (VDE tools)
are absolutely necessary.
Prior to commencing work:
1. Isolate (even auxiliary circuits).
2. Secure against reactivation.
3. Ensure de-energization.
4. Ground and short-circuit.
5. Cover or shield any adjacent live parts.
Personal and material damage during main‐
tenance work in operation!
WARNING
Never do any maintenance work on life machines.
While carrying out maintenance work, secure the machine
such that it cannot restart or be used by unauthorized per‐
sons.
Hot surfaces with temperatures over 70 °C
may cause burns!
CAUTION
Before you work in the machine, let the motor cool down.
Wear safety gloves.
Do not work on hot surfaces.
Motors
Excessive dirt, dust or chips may adversely affect the functionality of the mo‐
tors and, in extreme cases, even cause a failure of the motors. Clean the mo‐
tors at regular intervals (after one year at the latest) to reach a sufficiently
high heat emission surface. If the cooling fins are partially covered with dirt,
sufficient heat dissipation via the ambient air is no longer ensured.
Connection cable
Death by electrocution possible due to live
parts!
WARNING
Immediately put the machine out of operation and replace
defective connection cables.
Never do any provisional repairs on the connection cables.
●
Check in regular distances the connection cables on damage and re‐
place them if necessary.
●
Check optionally existing drag chains (Drag chains) on defects.
●
Check the protective conductor connection for proper condition and firm
seating at regular intervals. Replace it, if necessary.
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Maintenance and repair
R911337309_Edition 03 Bosch Rexroth AG
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