Service Training
Section
2.6
Page
88
2.6.12
BRUSH MONITORING
In trucks up to series 6/95 a brush monitoring system was used in which the brush wear switch (maker) was
connected to a brush monitor which, in turn, was connected to the combined instrument.
Brush monitoring from series 7/95
A switching contact is installed on each of the positive and negative brushes in the motor (traction and pump
motors).
Switching
Contact
Pressing Spring
All four switching contacts are connected in series and to battery negative on one side. When one brush is
worn down to 60 % of its original length, the pressure spring touches the switching contact, thus cutting off
the battery negative signal at the combined instrument.
Pressing Spring
Switching
Contact
The lamp in the combined instrument is illuminated and signals the wear of a motor brush. Even if only a
brief triggering of the switching contact at a motor brush occurred, this information will remain stored until
the key switch is turned off. To identify the motor with the brush wear, the motor number is shown in the LCD
display.
1
RH traction motor 1M1
2
LH traction motor 1M2
3
Pump motor 2M1
The motor number and the elapsed service hours are displayed alternately.
Summary of Contents for 336 Series
Page 2: ......
Page 8: ...ServiceTraining ...
Page 12: ...ServiceTraining Section 2 1 Page 4 ...
Page 14: ...ServiceTraining Section 2 1 Page 6 2 1 4 TRACTIONMOTORDISASSEMBLY ...
Page 19: ...ServiceTraining Section 2 2 Page 3 ...
Page 21: ...ServiceTraining Section 2 2 Page 5 ...
Page 27: ...ServiceTraining Section 2 2 Page 11 ...
Page 28: ...ServiceTraining Section 2 2 Page 12 ...
Page 33: ...ServiceTraining Section 2 4 Page 1 2 4 STEERING SYSTEM ...
Page 35: ...ServiceTraining Section 2 4 Page 3 ...
Page 37: ...ServiceTraining Section 2 4 Page 5 ...
Page 39: ...ServiceTraining Section 2 4 Page 7 ...
Page 41: ...ServiceTraining Section 2 4 Page 9 ...
Page 45: ...ServiceTraining Section 2 4 Page 13 ...
Page 47: ...ServiceTraining Section 2 4 Page 15 ...
Page 53: ...ServiceTraining Section 2 5 Page 5 ...
Page 54: ...ServiceTraining Section 2 5 Page 6 ...
Page 69: ...ServiceTraining Section 2 6 Page 15 ...
Page 74: ...ServiceTraining Section 2 6 Page 20 2 6 2 3 CIRCUIT BREAKER CONTACTOR 1K6 Circuit diagram ...
Page 94: ...ServiceTraining Section 2 6 Page 40 ...
Page 111: ...ServiceTraining Section 2 6 Page 57 Connector 1X6 1 15 V 2 Output signal 3 ...
Page 126: ...ServiceTraining Section 2 6 Page 72 2 6 9 2 LOCATION OF CONNECTORS FROM SERIES 7 95 ...
Page 128: ...ServiceTraining Section 2 6 Page 74 ...
Page 145: ...Section 2 6 Page 91 ...
Page 146: ......
Page 147: ......
Page 149: ...Section 2 6 Page 93 ...
Page 150: ......
Page 153: ...ServiceTraining Section 2 7 Page 3 ...
Page 157: ...ServiceTraining Section 2 7 Page 7 ...
Page 158: ...ServiceTraining Section 2 7 Page 8 ...
Page 163: ...Section 2 9 Page 5 ...
Page 164: ......
Page 166: ...ServiceTraining Section 2 10 Page 2 ...
Page 167: ......