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MAINTENANcE AND SErvIcE
9.2.2 check air gap
The brakes are delivered ex works with pre-set air gap X (nominal air gap) ready for
installation. As a result of wear, the air gap increases. To ensure proper functioning, the
air gap (distance between magnet housing on lining) needs to be checked in regular
intervals in energized state with dial gauge (measuring bridge). An adjustment of the
air gap is not possible. The wearing parts must be replaced on exceeding of value X
Size
02
03
04
05
06
07
08
09
10
Checking the air gap X
► Connect the brake to rated voltage (armature must be applied to the magnet).
► The supply voltage can be found in the performance data on the type plate at the
► Adjust the measuring bridge with dial gauge (zero setting).
► Place the measuring bridge as shown in the figure.
► The air gap X is the difference between zero setting and displayed value.
► Repeat the measurement at three different positions (approx. 3 x 120°).
► If a value greater than ' X
Rated value X
mm
0,2
0,2
0,2
0,2
0,3
0,3
0,4
0,4
0,5
magnet or in the drawings.
N
9.2.3 Replacing the
lining).
Air gap
Limiting value X
N
mm
0,4
0,5
0,6
0,6
1,0
1,0
1,2
1,2
1,5
' is measured, the wearing parts must be replaced
.
N
Lining thickness in new
condition g
mm
7,5
8,0
10,5
12,0
12,0
14,0
16,0
18,0
22,0
(=>
37
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