Maintenance and repair
INTORQ | BA 14.0199 | 08/2016
39
7.2
Inspections
7.2.1
Important notes
To ensure safe and trouble-free operations, the spring-applied brakes must be checked at regular intervals
and, if necessary, be replaced. Servicing will be easier at the plant if the brakes are made accessible. This
must be considered when installing the drives in the plant.
Primarily, the required maintenance intervals for industrial brakes result from their load during operation.
When calculating the maintenance interval, all causes for wear must be taken into account,
38. For
brakes with low loads (such as holding brakes with emergency stop function), we recommend a regular in-
spection at a fixed time interval. To reduce costs, the inspection can be carried out along with other regular
maintenance work in the plant.
Failures, production losses or damage to the system may occur when the brakes are not serviced. Therefore,
a maintenance strategy that is adapted to the particular operating conditions and brake loads must be de-
fined for every application. For the spring-applied brakes, the maintenance intervals and maintenance oper-
ations listed in the table below must be followed. The maintenance operations must be carried out as
described in the detailed descriptions.
7.2.2
Maintenance intervals
Time interval
for operating brakes:
for holding brakes with emergency
stop:
❚
according to service life calcula-
tion
❚
or else every six months
❚
after 4000 operating hours at the
latest
❚
at least every 2 years
❚
after 1 million cycles at the latest
❚
plan shorter intervals for frequent
emergency stops
Inspections with as-
sembled brake
❚
Check release function and control
Inspections after re-
moving the brake
❚
Check rotor
❚
Check hub
❚
Check armature plate and counter friction face
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