Checking parking brake compressed-air system · ar4220l0400va · Mercedes-Benz WIS

AR42.20-L-0400VA

Checking parking brake compressed-air system

6.7.09

MODEL 668, 670
with CODE (B16) Hydraulic 2-circuit / compressed air 2-circuit brakes
with CODE (B43) 2-line trailer brake (EC)

N42.10-2139-79

2-circuit hydraulic brake/2-circuit compressed air brake B16 shown with:

2-line trailer brake (EC) code B43, Antilock brake system (ABS) brake system code B02 and electrical accessories

1.01 Single-cylinder air compressor

4.06 Four-circuit protection valve with 5 connections and EC function

5.01 Single-chamber compressed air reservoir

6.01 Manually operated water separator

6.13 Single-chamber air drier

20.05 Pulling spring actuator

28.03 Preloaded shuttle valve

35.02 Coupling head for supply

35.03 Coupling head for brake

38.02 Test connection (M161.5)

38.05 Filling valve

a Hydraulic components

b Pneumatic (working pressure)

c Electrical components

d Pneumatic (control pressure)

i Instrument panel

8.01 Check valve

9.01 Red indicator lamp

9.03 Stop lamp

10.01 Parking brake pressure switch

13.02 2-circuit service brake valve (without front axle control)

14.09 Parking brake valve with trailer control and pipe fracture protection

16.01 Air admission relay valve

18.05 Trailer control valve for 2-line brake system (3-circuit)

	Checking
1	Bleed service brake system, bleed vessel for ancillary consumers separately
	Notes on pressure vessel for ancillary consumers		AH42.60-N-0010-01A
2	Connect pressure gauge of test kit to test connection (M161.5) (38.02)	Test kit	*360589002100
3	Check cut-in/cut-out pressure of parking brake pressure switch (10.01)	 Pressurize spring-loaded parking brake system. Check pressure on test connection (M161.5) (38.02) as parking brake "P" indicator lamp goes out and compare with specified value. If the switch point of the parking brake pressure switch (10.01) deviates from the specified value: 	*BE42.10-N-1008-10C
		Replace parking brake pressure switch (10.01).
		Test kit	*360589002100
4	Detach pressure gauge of test kit from rear test connection (M161.5) (38.02)	Test kit	*360589002100

Test and adjustment values for service brake

Number	Designation		Model 668, 670 with code B16 Steel suspension Solo vehicle up to VIN 123600	Model 668, 670 with code B16 Steel suspension Solo vehicle as of VIN 123601 up to VIN 131964	Model 668, 670 with code B16 Steel suspension Solo and tractor vehicle as of VIN 131965 up to VIN 134642


BE42.10-N-1008-10C	Cut-in / cutoff pressure for parking brake indicator lamp "(P)", pressure switch B10.01	bar	6.5 (0.2)	6.5 (0.2)	6.5 (0.2)

Test and adjustment values for service brake

Number	Designation		Model 668, 670 with code B16 Steel suspension Solo and tractor vehicle as of VIN 134643	Model 668, 670 with code B16 and code B43 Steel suspension Towing vehicle up to VIN 123600	Model 668, 670 with code B16 and code B43 Steel suspension Towing vehicle as of VIN 123601 up to VIN 131964


BE42.10-N-1008-10C	Cut-in / cutoff pressure for parking brake indicator lamp "(P)", pressure switch B10.01	bar	6.5 (0.2)	6.5 (0.2)	6.5 (0.2)

Test and adjustment values for service brake

Number	Designation		Model 668, 670 with code B16 CE2/CE3 with Paul air suspension up to VIN 076160	Model 668, 670 with code B16 CE2/CE3 with MB air suspension as of VIN 076161 up to VIN 123600	Model 668, 670 with code B16 CE2/CE3 with MB air suspension as of VIN 123601 up to VIN 131964


BE42.10-N-1008-10C	Cut-in / cutoff pressure for parking brake indicator lamp "(P)", pressure switch B10.01	bar	6.5 (0.2)	6.5 (0.2)	6.5 (0.2)

Test and adjustment values for service brake

Number	Designation		Model 668, 670 with code B16 CE2/CE3 with MB air suspension as of VIN 131965 up to VIN 134642	Model 668, 670 with code B16 CE2/CE3 with MB air suspension as of VIN 134643


BE42.10-N-1008-10C	Cut-in / cutoff pressure for parking brake indicator lamp "(P)", pressure switch B10.01	bar	6.5 (0.2)	6.5 (0.2)

360 589 00 21 00

Test kit