Lenze m500-P Series, Operating Instructions Manual

Page: 47 / 58

Maintenance/repair
Maintenance operations
Checking the rotor thickness
8
47
Lenze ¯ BA 33.0008 ¯ 5.0
Check the mounting dimension of the manual release
(
Stop!
Dimension "s" must be maintained! Check air gap "s
L
"!
(
^
operating instructions)
Size s
L
(mm) s
+0.1
(mm) s + s
L
(mm)
06
0.2 1 1.2 08
10
12
0.3 1.5 1.8 14
16
18
0.4 2 2.4
20
25 0.5 2.5 3
8.3.4 Checking the rotor thickness
}
Danger!
When the rotor thickness is checked, the motor must not run.
1. Remove fan cover and cover ring if attached.
2. Measure rotor thickness with calliper gauge. If a friction plate is attached, ensure
a flanged edge at the outer diameter of the friction plate.
3. Compare measured rotor thickness with minimally permissible rotor thickness
(values
^
49).
4. If required, exchange the entire rotor. Description
^
49.
8.3.5 Checking the air gap
1. Check the air gap "s
L
" near the fixing screws between the armature plate and
stator using a feeler gauge (
^
49).
2. Compare air gap measured to maximally permissible air gap "s
L max.
" (
^
49).
3. If required, set air gap to "s
LN
" (
^
48).