Replacing and installing brake pads

AR42.10-W-0170A

11.1.12

MODEL 374, 930, 932, 933, 934, 940, 942, 943, 944, 958.2 /4
With disk brake SN 7000

MODEL 375.3 /4, 950, 952, 953, 954, 957
With disk brake SB 7000, SN 7000

MODEL 375.1, 970, 972, 974, 975, 976
with SB 6000, SN 6000 disk brakes

W42.10-1081-07

2 Wrench (on brake adjuster)

3 Retaining clip

4 Washer

7 Brake pads

8 Brake caliper

5 Spring cotter

6 Pin

Modification notes

4.11.11	Remove/install retaining bracket (3), added.	Operation step 4, 16	AR42.10-W-0170-04H
	Screw threaded pipes by altering adjuster all the way into the brake caliper, added.	Step 5	AR42.10-W-0190-01H

	Removing
1	Remove wheel		AR40.10-W-1100A
2	Pressurize air brake system to cutout pressure
3	Release parking brake
4	Remove retaining bracket (3)		AR42.10-W-0170-04H
5	Screw threaded pipes by altering adjuster all the way into the brake caliper.	 Adjust the adjuster using a box wrench and a hexagon adapter only. Otherwise the adjuster may be damaged and the brake caliper (8) will need to be replaced.	AR42.10-W-0190-01H
6	Remove brake pads (7)
	Install
7	Check thickness and condition of brake disks		AR42.10-W-0120A
8	Clean brake recess and guide surfaces of brake pads (7).	 Do not damage the boots.
		 Contamination and corrosion cause the brake pads (7) to seize and affect the function of the brakes.
9	Check run-flat support areas for brake pads (7) on brake carrier.	 The brake carrier with brake caliper (8) must be replaced if the run-flat support areas have grooves deeper than 0.5 mm.
10	Check boots on thrust pieces		AR42.10-W-0130A
11	Check brake caliper guide		AR42.10-W-0140A
12	Check brake pads (7)		*BE42.10-N-1001-11A
	Notes on evaluating brake pads		AH42.10-N-9406-06A
13	Install brake pads (7)
14	Checking adjuster		AR42.10-W-0190A
15	Adjusting play of disk brake		AR42.10-W-0180A
16	Install retaining bracket (3)		AR42.10-W-0170-04H
17	Mount wheel		AR40.10-W-1100A
18	Check function and effectiveness of service brake

Test values for brake pad, brake caliper

Number	Designation			Model 374, 375.3/4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958.2/4 with disk brake SB 7000, SN 7000	Model 375.1, 970, 972, 974, 975, 976 with disk brake SB 6000, SN 6000


BE42.10-N-1001-11A	Brake pad thickness	New (with pad backing plate)	mm	30	30
		New (without pad backing plate)	mm	21	21
		Wear limit (without pad backing plate)	mm	2	2