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2.1  CHECK OF CONTINUOUS AND END-OF-PAD/2-

WIRE SENSORS         

2.2  CHECK OF THE WEAR OF BRAKE PADS AND 

DISCS

1.

 Disassemble the vehicle wheel if needed

2.

 Disconnect the connector of the brake caliper sensor

3.

 Loosen the brake pads with the help of the adapter until they can be 

disassembled

Important:

 The pushers must be at the same height, with a difference below 0.25mm. 

Otherwise, the brake caliper must be replaced.

4.

 Connect the corresponding connector from Jaltest WST to the sensor connector

5.

 Turn the sensor type selector to the corresponding position. See

 table 2

6.

 Adjust the distance between the pusher and the brake caliper according to table 

of the selected sensor* and compare the values shown on Jaltest WST with those of 

the table (maximum and minimum values)

*Table 3

 for manufacturer DAF, IVECO, MB, SCANIA, (+) 

 Table 4

 for MAN, MERITOR

 Table 5

 

 for end-of-pad/2-wire sensors  

Important:

 Important: The adjustment spindles should not be totally unthreaded, 

since the synchronisation between the pushers would be lost. Never exceed the ab-

solute minimum dimension “L” shown on

 table 1

.

Note:

• If Jaltest WST indicates 0V during the test, check the position of the selector and 

the connection.

•  If the values are correct and within a tolerance of ± 0.25V, the sensor operates

 correctly. Otherwise, the sensor must be replaced.

To check the wear, the brake calipers can assemble 2 types of sensors: end-of-pad/2-

wire sensors and continuous sensors. Depending on the type of sensor, the check 

must be performed in one way or another. In any case, the following steps must be 

carried out:

1.

 Disassemble the vehicle wheel if needed

2.

 Disconnect the connector of the brake caliper sensor

3.

 Connect the corresponding connector from Jaltest WST to the sensor connector

2 Procedure

Summary of Contents for jaltest TOOLS WST

Page 1: ...Jaltest WST Wear Sensor Tester Tester of wear sensors User manual ...

Page 2: ...Rev 01 Jaltest WST Wear Sensor Tester Tester of wears sensors User manual ...

Page 3: ...INDICATIONS AND SUGGESTIONS 5 1 3 EQUIPMENT COMPOSITION 6 2 1 CHECK OF CONTINUOUS AND END OF PAD 2 WIRE SENSORS 8 2 2 CHECK OF THE WEAR OF BRAKE PADS AND DISCS 8 Procedure 8 2 2 1 END OF PAD 2 WIRE SENSORS 9 2 2 2 CONTINUOUS SENSORS 9 3 1 TABLE 1 DISTANCE BETWEEN THE DISC AND THE PAD 10 ...

Page 4: ... 3 POSITION OF THE SELECTOR FOR DAF IVECO MB SCANIA 11 3 4 TABLE 4 POSITION OF THE SELECTOR FOR MAN MERITOR 12 3 5 TABLE 5 POSITION OF THE SELECTOR FOR END OF PAD 2 WIRE SENSORS 12 Technical data 13 index next previous Faster access to any content you need by clicking Easy navigation ...

Page 5: ... way It enables reducing considerably the time invested in checks thanks to the cable kit that provides an optimal connection Use the equipment only as described in the user manual Prevent non qualified staff from working with this equipment Prevent the equipment from being in contact with liquids do not use it on wet surfaces and avoid exposure to the rain Store the equipment and its components i...

Page 6: ...orange LED lights up if the battery is too low D Continuous sensors of MAN and Meritor E Sensor type selector Rotary switch that enables positioning the type of sensor F Wear indicator The green LED lights up if the wear of the brake pads and disc is correct The red LED lights up if the wear of the brake pads and disc is not correct G Continuous sensors of DAF Iveco Mercedes Benz Scania others H E...

Page 7: ...lish 7 CONNECTOR BRANDS RENAULT VOLVO VOLVO SCANIA MERCEDES BENZ KNORR BREMSE MERCEDES BENZ DAF EVOBUS IVECO SCANIA HYUNDAI MAN KNORR BREMSE WABCO RENAULT VOLVO Indicative application list 1 3 2 CABLE KIT ...

Page 8: ...le 3 for manufacturer DAF IVECO MB SCANIA Table 4 for MAN MERITOR Table 5 for end of pad 2 wire sensors Important Important The adjustment spindles should not be totally unthreaded since the synchronisation between the pushers would be lost Never exceed the ab solute minimum dimension L shown on table 1 Note If Jaltest WST indicates 0V during the test check the position of the selector and the con...

Page 9: ...pad The inspection must be performed visually 1 Turn sensor type selector to the position of the corresponding continuous sensor See table 2 2 Compare the value shown with those of table 3 in case of sensors in DAF IVECO MB SCANIA and with table 4 or sensors in MAN and MERITOR 3 If the value shown in Jaltest WST is below 2 7V the OK LED lights up in green If the value shown in Jaltest WST is above...

Page 10: ...bsolute minimum distance L mm SB5 SN5 96 66 64 SB6 SB7 SN6 SN7 DAF IVECO MB SCANIA 105 68 66 SB6 SB7 SN6 SN7 MAN MERITOR 105 70 68 SL7 SM7 110 73 71 ELSA 1 MAN 103 70 68 ELSA 2 MAN RENAULT 103 70 68 ELSA 195 VOLVO 103 70 68 ELSA 225 RENAULT VOLVO 103 70 68 1 Low pad support 2 Brake disc and bushing 3 Axle of rotation 4 Adjustment spindle 5 Pusher ...

Page 11: ...sor type selector Vehicle or axle manufacturer Pin colour of the continuous sensor Information to know if the operation is correct DAF IVECO MB SCANIA DAF DAIMLER DANA EVOBUS HENDRICKSON HYUNDAI IVECO MERITOR SAF SCANIA SOR LIBCHAVY VOITH ZF OTHERS SILVER The voltage values increase from 1V to 3 5V lineally between the maximum and minimum distance MAN MERITOR Knorr Bremse MAN DANA SAF OTHERS GOLD ...

Page 12: ... THE SELECTOR FOR END OF PAD 2 WIRE SENSORS Type of brake caliper Maximum distance L mm Measured voltage V Minimum distance L mm Measured voltage V Distance variation for complete turn of the adjustment screw mm V SN5 96 0 7 66 3 5 6 0 57 SB6 SN6 SB7 SN7 105 70 6 0 49 ELSA 1 ELSA 2 103 ELSA 195 ELSA 225 1 6 0 44 Measured voltage Measured voltage Measured voltage Measured voltage Distance Distance ...

Page 13: ...lish 13 4 Technical data Device dimensions 66 x 144 x 40 mm Suitcase dimensions 350 x 230 x 86 mm Device weight 193 g Complete suitcase weight 1270 g Range of operating temperatures From 10 ºC until 40 ºC ...

Page 14: ...2021 V2 EN ...

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