Adjust parking brake - AR42.20-P-0540GZ

MODEL 164 

Shown on model 164.175 

Fig 1: Identifying Brake Disk, Rubber Insert, Thumbwheel And Brake Shoes

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Notes on repairs to brake system	All models	AH42.00-P-0003-01A
1	Release parking brake
2	Lift/jack up vehicle		AR00.60-P-1000GZ
3	Remove rear wheels
	Remove/install wheels, rotate if necessary.		AP40.10-P-4050Z
	Adjust
4	Remove rubber insert (2)
5	Bring brake shoes (4) into contact with parking brake drum	Turn the adjusting wheel (3) by means of a screw driver until the brake shoes (4) contact the brake drum and the brake disk (1) cannot be turned by hand anymore. Positioning direction for applying the brake shoes (4): Turn both adjustment wheels from above downwards.
6	Detach adjustment wheel (3)	Loosen left and right adjustment wheel by the same number of teeth. It must be possible to rotate the rear wheel or brake disk (1) completely freely by hand.
	Checking
7	Operate the parking brake lever several times and check the travel of the parking brake lever	Number of notches by which the parking brake has to be adjusted, if until then there is no adequate braking effect	*BE42.20-P-1001-01F
8	Release parking brake and check unobstructed movement of rear wheels or brake disks
	Install
9	Fit rear wheels
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
	Risk of death  caused by body parts being pulled in by rotating vehicle wheels and roller dynamometer rollers	Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Safeguard areas with rotating vehicle parts and dynamometer rollers against unauthorized access. Safeguard roller dynamometer from unauthorized access.	AS00.00-Z-0019-01A
10	Carry out brake test on the test stand
	Brake testing on test stand		AP42.00-P-4290GZ

ADJUSTMENT VALUES FOR PARKING BRAKE

Number	Designation	Model 164
BE42.20-P-1001-01F	Number of notches at which the parking brake must be adjusted if up to that point there is insufficient braking effect	7