WABCO 461 307 Скачать руководство пользователя страница 2

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© 2004 American Standard Companies Inc. All rights reserved. 461 307 961 3/01.2005

Fig. 1 + 2  Brake valve 461 307 ...  0, functional symbol

Necessary equipment/tools

• Test Bench 435 197 000 0 or an adequate 

testing equipment

• Adequate equipment:

• for clamping the brake valve,
• for actuating the pedal with ° graduation.

Additional documents:

(see www.wabco-auto.com => INFORM)
• Test Values 2/2:

to be found by entry of the product number in 
INFORM

• Test Bench - Operating Instructions:

435 197 000 0

• General Repair and Test Hints:

820 001 074 3 (de)
820 001 075 3 (en)
820 001 076 3 (es)
820 001 077 3 (fr)
820 001 078 3 (it)

Check sequence

Perform test procedure as per specified se-
quence
Find test values P1 to P12 and G1 to G6 in 
document "test values 2/2".
Reservoir pressure is 8.0 bar max. / 7.0 bar 
min.

Before starting any test ensure that cut-off cocks are 
in their correct normal position (see table 1).

Table 1:  Normal position of cut-off cocks on the test bench

1.

External evaluation

Inspect device for external visible damage.

Check all ports of the device for free passage 
by visual inspection.

2.

Preparations

2.1 Adjustment arrangement of brake valves

Assemble the brake valve except for the inser-
tion of fully assembled graduating piston and 
the flange of the whole actuation.

Measure dimensions a and b (see fig. 3), di-
mension C = b - a .

Fig. 3  Dimension C

Adjust dimension d = C + 0,8 mm in the gradu-
ating piston by turning the set screw (see fig. 
4).

Fig. 4  Dimension d (Device with one rubber spring)

Counter set screw by turning the hexagon nut 
(see fig. 4).

The adjustment levels off also at devices with 
longer graduation travel (two rubber springs), 
see fig. 5.

Fig. 5  Dimension d (Device with two rubber springs)

i

i

Cock

A B C D F L V

2 3 4 6 7

11

12

21

22

on

x

x

x

off

x

x

x

x

x

x

x x x x x

x

x

i

CAUTION

a

b

C

C = b - a

d

set screw

hexagon nut

i

hexagon nut

d = C + 0,8

d

set screw

Brake Valve

with pedal

461 307

1/2

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