PLDC01938
REVISION 00
01/06/2011
TECHNICAL DEPT.
Stavale
- date 05/09/2011
20/195
Carbon brush measurements
All four carbon brushes must be replaced at the same time and if the operating hours of the two brush
motors mounted on the head are the same, all eight carbon brushes must be replaced together.
6
Measure the carbon brush I2 to check the wear. The minimum acceptable length is 11 mm, otherwise it must
be replaced.
7
When replacing, compare the new carbon brush with the one being replaced and/or the measurements
below. Only the length may differ.
8
Make sure the carbon brushes slide freely in their housing.
Reassembly
1
Before mounting the new carbon brushes, clean inside the motor by blowing with a jet of compressed air,
concentrating on the area around the carbon brushes and the rotor where the carbon brushes slide.
2
To mount the new carbon brushes, perform the disassembly operations in reverse.
17.8 ± 0.05 mm
9.9 ± 0.05 mm
≥11.0 mm
18 ± 0.05 mm
PHOTO 45
I2
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