Checking and adjusting camber and caster of front wheels - AR40.20-P-0322B

MODEL 140

Fig 1: Identifying Measuring Device For Caster And Cam Bolt - Model 140

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Checking
1	Follow general information on chassis alignment check.		AR40.20-P-0201A
2	Check vehicle level at front axle and rear axle.		AR40.20-P-0300B
3	Install measuring device for caster (04) in the fixing points on the steering knuckle.		Fig 2
4	Check camber and caster.	Camber	*BE40.20-P-1001-06A
		Caster	*BE40.20-P-1002-06A
	Adjusting
5	Adjust camber (front cam bolt, 19) and caster (rear cam bolt, 20) at the wishbone mount.	The wheel spreader must not be used to adjust the toe-in. The specified value of camber or caster cannot be adjusted ↓.	*BA40.20-P-1004-01A
		Check upper wishbone, steering knuckle and body for accident damage and the supporting joints and follower joints for wear.

TEST AND ADJUSTMENT VALUES FOR FRONT WHEEL CAMBER/CASTER

Number	Designation		Model 140 up to 12/92	Model 140 as of 01/93	Model 140 suspension for increased ground clearance
BE40.20-P-1001-06A	Camber	at 0° toe-in	- 0° 10' (-20'/ +10')	- 0° 20' (-20'/ +10')	- 0° (-20'/ +10')
BE40.20-P-1002-06A	Caster	at 0° toe-in	10° 10' ± 30'	10° 20' ± 30'	9° 55' ± 30'
BE40.20-P-1002-06A	Caster	with wheels turned	9° 30' ± 30'	9° 40' ± 30'	9° 20' ± 30'

CHASSIS ALIGNMENT CHECK

Number	Designation		Model 140
BA40.20-P-1004-01A	Nut of cam bolt	Nm	180

Fig 2: Identifying Measuring Device (140 589 03 21 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.