36 / 60
MKE Synchronous Servomotors
Service repair, maintenance and spare parts
Bosch Rexroth AG
R911414374, Edition 01
WARNING
Personal and material damage during mainte-
nance work in operation!
−
Never carry out maintenance work on run-
ning machines.
While carrying out maintenance work,
secure the machine such that it cannot
restart or be used by unauthorized persons.
CAUTION
Hot surfaces with temperatures over 60 °C may
cause burns!
−
Allow the motors to cool down prior to com-
mencing work.
Wear safety gloves.
Do not work on hot surfaces.
Motors
Dirt, dust or chips may adversely affect the func-
tionality of the motors and, in extreme cases,
even cause a failure of the motors. Therefore, in
regular intervals (after one year at the latest), you
should clean the surface of the motors in order to
achieve a sufficiently large heat radiation surface.
If the cooling fins are partially covered with dirt,
sufficient heat dissipation via the ambient air is
no longer possible.
Insufficient heat dissipation can have undesir-
able consequences. The bearing life is reduced
by operation at inadmissibly high temperatures
(bearing grease decomposes). Overtemperature
switch-off despite operation on the basis of
selected data, because the appropriate cooling
is missing.
Connection cables
WARNING
Electric shock due to contact with live parts!
−
Change damaged connection cables and
decommission the plant immediately.
Do not repair any connection lines provi-
sionally.
•
Check the connection cable for damage at
regular intervals and replace it if necessary.
•
Check optionally existing drag chains on
defects.
•
Check the protective conductor connection
at regular intervals for proper condition and
tight fit and replace if necessary.
10.2 Service repair, mainte-
nance and spare parts
Wearing parts are reliably and professionally
repaired and replaced by the Rexroth Service in
shopfloor-oriented quality.
MKE may only be repaired at certified Bosch
Rexroth service branches. External service pro-
viders are not allowed to perform repairs on MKE,
otherwise the product certification will expire.
The service lives of motor components, such as
seals and bearings, may vary depending on the
operating conditions, such as operation mode,
speed, vibration and shock load, and frequent
reverse mode. We recommend to change the
bearing after 30,000 operating hours. Shorter
replacement intervals may be necessary; cf.
checks during operation . We recommend reg-
ular visual inspections on shaft sealing rings.
Depending on operating conditions, signs of wear
may appear after 5,000 operating hours. If nec-
essary, replace the shaft sealing rings.
The Bosch Rexroth service helpdesk at our head-
quarters in Lohr, Germany and our worldwide
service provide You can contact us 24/7.
Telephone: +49 (0) 9352 40 50 60
Fax:
+49 (0) 9352 18 49 41
