Remove, install diaphragm cylinder

AR42.10-W-0800A

23.7.07

MODEL 374, 375.1 /3 /4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958.2 /4, 970, 972, 974, 975, 976
with disk brake

W42.10-1021-09

1 Nuts

2 Single-circuit diaphragm brake cylinder

Arrows Vent opening

3 Compressed-air line

4 Spherical cap

Modification notes

9.11.06	Special tools added.	Step 3	*000589260100
			*001589442100

 	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Discharge compressed-air system
2	Remove compressed-air line (3)	 Installation: Install new O-ring.
		With compressed air connection system "VOSS 230".	AR42.10-W-0900A
		With compressed air connection system "VOSS 232" (NG 8, 12) or "SCHÄFER SDF" (NG 6).	AR42.10-W-0900C
	Notes on compressed air connection systems		AH00.18-N-0001-01A
3	Remove single-circuit diaphragm brake cylinder (2)	 Check the connection housing of the brake caliper and the single-circuit diaphragm brake cylinder (2).
		If there is condensed water in the connection housing of the brake caliper, a new brake caliper must be installed: 
		Disk brake SB 5000, SB 6000, SB 7000, SN 6000, SN 7000.	AR42.10-W-0090A
		SN 5000 disk brakes.	AR42.10-W-0090C
		If there are traces of corrosion on the sealing surface, the housing opening, and the brake lever at the diaphragm cylinder (2), a new single-circuit diaphragm cylinder (2) must be installed.
		 Installation: Clean the sealing surfaces on the single-circuit diaphragm brake cylinder (2) and brake caliper. Coat spherical cap (4) at brake lever with grease. Use new self-locking nuts (1).	*BR00.45-Z-1021-06A
		When installing a new single-circuit single-circuit diaphragm brake cylinder (2) the rubber plugs (arrows) of the bore pointing downwards must be removed.
			*000589260100
			*001589442100
			*BA42.10-N-1002-08A
4	Install in the reverse order

 Brake cylinder

Number	Designation			Model 374, 940, 942, 943, 944 with disk brake	Model 375.1, 970, 972, 974, 975, 976 with disk brakes


BA42.10-N-1002-08A	Self-locking nut, diaphragm cylinder to brake caliper	M161.5	Nm	180	180

 Brake cylinder

Number	Designation			Model 375.3/4, 950, 952, 953, 954, 957 with disk brake	Model 930, 932, 933, 934 with disk brake


BA42.10-N-1002-08A	Self-locking nut, diaphragm cylinder to brake caliper	M161.5	Nm	180	180

 Brake cylinder

Number	Designation			Model 958.2/4 with disk brakes


BA42.10-N-1002-08A	Self-locking nut, diaphragm cylinder to brake caliper	M161.5	Nm	180

001 589 44 21 00

Torque wrench handle

Open end wrench

000 589 26 01 00

Auxiliary repair materials

Number	Designation	Order number
BR00.45-Z-1021-06A	Assembly grease (white) Part number: II 14525	Knorr-Bremse AG Moosacher Str. 80 80809 München Germany Tel. +49-89-3547-0 Fax +49-89-3547-2767 www.knorr-bremse.de