Kendrion Binder Magnete GmbH
Operating Instructions 76 ..P..B00
Last updated: 30 Dec. 2009
Page 20
Thermoswitch replacement (11 and 12)
The thermoswitches (11 and 12) must be replaced when the maximum service life (switching operations) has
been reached. Replacement must be carried out by the manufacturer or by an authorised repair shop due to
the difficult installation of the thermoswitches with the microswitch (13)
1)
. The thermoswitches (11 and 12)
will only interrupt the control circuit of the machine (e.g. motor) if the maximum permitted operating
temperatures (see "Technical specifications") on the measuring points of the thermoswitches (11 and 12) are
exceeded. Under normal conditions, the thermoswitches (11 and 12) remain closed during the entire
operation of the spring-applied single-disc brake.
1)
brake types with microswitch
Attention!
The machine screws (20) provided on the cover (7) must be tightened to the M
A
torque specified in Table
13/1. The O-ring (24) and spring washer (21) must be installed as shown in Fig. 6/1.
Information on flameproof gaps without thread and flameproof thread gaps
All flameproof gaps are factory-specified. The gap dimensions and surface specifications (Ra < 6.3
μ
m) must
be maintained. If gap surfaces are found to be damaged or if gap dimensions are different from those
specified, it is crucial that original spare parts are used when performing repair work or replacing individual
components. Repair work must be carried out by the manufacturer or by authorised specialists!
Flameproof gaps without thread:
hub (17) / solenoid housing (1.1)
cover (7) / solenoid housing (1.1)
cam (29.1) / sleeve (29.2)
Flameproof thread gaps:
sleeve (29.2) / solenoid housing (1.1)
duct (36) / solenoid housing (1.1)
Caution!
Whenever inspection and maintenance work is carried out, check that
•
the machine (e.g. motor) is secured against accidental or unintentional start-up.
•
no load torque is applied to the shaft.
•
the lock provided to prevent accidental start-up of the machine (e.g. motor) is removed after completion
of inspection and maintenance work.
•
all friction surfaces are free from grease and oil. An oily or greasy friction disc (5) cannot be cleaned.
•
the friction lining has not swollen or turned vitreous.
