WABCO 973 002 Manual de usuario

1/9

Explanation of Symbols

Important instructions, information or tips that you

should always observe.

•List

–Step

Carefully read through all the safety information be-

fore starting the testing.

General safety instructions

Fig. 1 Trailer Control Valve 973 002 ... 0 / functional symbol

Test instruction for device 973 002 ... 0

Equipment/tools required

• Test bench 435 197 000 0 or adequate testing

equipment (see fig. 3 and 4)

• Rake angle (with fixing nuts M8

(2x) for devices), see the adja-

cent diagram

• Two tees

• Soapsuds and brush

• Nozzle: ∅1.3 mm

Additional documents required

The documents are available on the WABCO web-

site http://www.wabco-auto.com - simply enter

the product or document number in INFORM.

• Test Bench 435 197 000 0 - Operating Instructions

• General Repair and Test Information

Potential hazard situation which can

cause serious personal injury or death

if the safety instruction is not observed.

Potential hazard situations that can

cause minor or moderate personal inju-

ry if the safety instruction is not ob-

served.

Potential hazard situations that can

cause material loss if the safety in-

struction is not observed.

Only qualified skilled personnel with

specific system knowledge are author-

ized to perform the device testing at the

test bench.

Comply with the company and national accident pre-

vention/health & safety regulations.

Danger of bodily injury

Undo the screw plugs, hoses and

equipment parts only when the respec-

tive lines have been vented.

WARNING

CAUTION

WARNING

CAUTION

500 505

501 508

503

Test instruction for

Trailer Control Valves

973 002 (E)

Testing

Perform the following test steps in the specified or-

der.

Never start testing until you have read and under-

stood all the information required for the test.

Test the device on a calibrated test bench only.

In case of doubt, use test values specified by the

vehicle manufacturer.

While testing the device, always adhere to the con-

tents of this test instruction.

Default value V and test value P see table 3.

If test values do not fit, the device must be readjust-

ed.

Reservoir pressure is 8 bar max.

1 External inspection

– Inspect the device for external visible damage.

– Visually inspect all the device's ports for blockag-

es.

2 Preparations

Test bench

– Before starting each test, ensure that the stop-

cocks are in their correct normal position (see ta-

ble 1). The output side of pressure regulator D

must be unpressurised.

Table 1: Normal position of stopcocks on the test bench

If you do not have test bench 435 197 000 0 you

must test the device according to the following test-

ing diagram (see fig. 3).

– Fix the rake angle on the device and clamp into

the bench vice.

– Connect the device to the test bench ports (see

fig. 2) or according to the test diagram.

Test bench

Set pressure regulator D to 8 bar.

Fig. 2 Connection diagram for test bench 435 197 000 0

Do not install a repaired device in the

vehicle unless it has passed the follow-

ing tests.

Shut-off cocks A B C F L V 2346711122122

open x x x x

closed x xxx xxxxx x x

WARNING

Never directly clamp the device in the

vice. This could damage the device.

Danger of bodily injury

Ensure that the plug-in connections on

the test bench and the device are se-

curely inserted.

CAUTION

41 42 43

11 21

12 22

72134

7213

41 43

11 21

12 22

Te s t m a i n v a l v e Test side valve

Test instruction for

Trailer Control Valves

973 002 (E)

3/9

3 Test main valve

Fig. 3 Test diagram "Main Valve"

Fine control valve 11

8 bar

Manometer 11

Manometers 12/21

20 dcm³

Shut-off cock 11

1 dcm³

Manometers 41/42 Shut-off cock 41

Precision control valve 41/42

8 bar

Fine control valve 43

Shut-off cock 42

Shut-off cock 21

Manometer 22

Manometer 43

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 42

bar

M 43

bar

M 12 /

M 21

bar

M 22

bar

Shut-off cocks 11, 12/21

and 43: Open the pass.

00 00 00

Fine control valves 11 and

43: Increase pressure

slowly.

80 08 80

Fine control valve 43:

Increase and lower the

pressure rapidly twice.

8...0

0...8

M 22 (test bench: Manome-

ter 4) must display an

immediate rise or drop in

pressure.

Check for leaks

Check tightness at exhaust

of the shut-off cock 42 and

at the exhaust of the

device.

8 0 0 8 - - Permissible leakage:

8 cm3/min

Never install

a leaking

trailer con-

trol valve on

the vehicle.

WARNING

Test instruction for

Trailer Control Valves

973 002 (E)

Fine control valve 43:

Increase pressure slowly.

≥6.6

6,6...0

M 22 (test bench: M 4) must

indicate pressure.

M 22 (test bench: M 4) must

display an immediate rise in

pressure.

Check for leaks

Check tightness at exhaust

of the shut-off cocks 41

and 43.

8 0 0 0 - 7,2...7,8 Permissible leakage:

8 cm3/min

Never install

a leaking

trailer con-

trol valve on

the vehicle.

Fine control valve 43:

Increase pressure slowly.

8 0 0 0...0,5 - - Start of drop in pressure at

M 22 (Test bench: M 4).

Fine control valve 43:

Increase pressure quickly.

0,5...7,7

7,1...7,7

M 22 (test bench: M 4) must

display an immediate drop

in pressure.

Shut-off cock 41:

Open the pass.

80 08 - 0

Fine control valve 41:

Increase and lower the

pressure rapidly twice.

0...8

8...0

0...8

8...0

M 22 (test bench: Manome-

ter 4) must display an

immediate rise or drop in

pressure.

Fine control valve 41:

Increase pressure slowly.

Perform this step only

for variant 501 and

505:

8>0...≤0,3 0 8 - >0 M 22 (test bench: M 4) must

indicate pressure.

8 2...3 0 8 - P1 Value at M 22 (Test bench:

M 4) adjust via adjusting

screw 891 200 700 2 by

venting device.

Perform this step only

for variant 505:

88 08 - -

Perform this step only

for variant 505:

Fine control valve 41:

Increase and lower the

pressure rapidly three

times.

8...0

0...8

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 42

bar

M 43

bar

M 12 /

M 21

bar

M 22

bar

WARNING

Test instruction for

Trailer Control Valves

973 002 (E)

5/9

Perform this step only

for variant 505:

Fine control valve 41:

Lower and increase pres-

sure.

8 2...3 0 8 - 0.2

Value at M 22 (Test bench:

M 4) adjust via adjusting

screw 891 221 250 4 by

venting device (final adjust-

ment).

Pressure progression

test (upwards)

8 2...3 0 8 - P2

Fine control valve 41:

Increase the pressure

slowly until a change is

detected at M 22 (test

bench: M 4). Stop the pres-

sure increase at this point

and test M 22.

8- 08 - Pres-

sure

stage:

max. 0.3

bar in

compari-

son to

the value

in the

line

before.

Fine control valve 41:

Increase pressure slowly.

8V3 08 - P3

Pressure progression

test (upwards)

Fine control valve 41:

Increase pressure slowly.

3...2

Pressure display at M 22

(test bench: M 4).

Lower the pressure further

until a change is detected

at M 22 (test bench: M 4).

Stop decreasing pressure

at this point and test M 22.

8- 08 - Pres-

sure

stage:

max. 0.3

bar in

compari-

son to

the value

in the

line

before.

Fine control valve 41:

Carry on decreasing the

pressure slowly.

8 0 0 8 - 0...0,1 Residual pressure

Shut-off cock 42:

Open the pass.

80 08 - -

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 42

bar

M 43

bar

M 12 /

M 21

bar

M 22

bar

!M41

Test instruction for

Trailer Control Valves

973 002 (E)

Table 2: Test steps "Main Valve"

Fine control valve 42:

Increase pressure slowly.

0...1,4

≥7.4

M 22 (test bench: M 4) must

indicate pressure.

Fine control valve 41:

Increase pressure slowly.

88 88 8P6

Check for leaks

Check the tightness of the

entire device (separation

joints including exhaust).

88 88 8P7 Permissible leakage:

8 cm3/min

Never install

a leaking

trailer con-

trol valve on

the vehicle.

Precision control valves

11, 41, 42 and 43: Reduce

the pressure.

00 00 0-

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 42

bar

M 43

bar

M 12 /

M 21

bar

M 22

bar

WARNING

Test instruction for

Trailer Control Valves

973 002 (E)

7/9

Test and default values

Table 3: Test and default values:

973 002 ... 0

Variant

P1 P2 V3 P3 V4 P5 P6 P7

500 - M41-0.2 8 ≥7.7 ≥7.2 M41+0.2 ≥7.7 ≥7.7

501 M41+0.2±0.1 M41+0.2±0.1 7.5...8 8 ≥7.2 0

-0.4 --

503 - M41-0.2 8 ≥7.7 ≥7.2 M41+0.2 ≥7.7 ≥7.7

505 M41+1 +0.2

-0 7.2...7.8 8 -0.8

-1.2 M41+0.2 ≥7.7 ≥7.7

508 - M41-0.2 8 ≥7.7 ≥7.2 M41+0.2 - -

M41+0.

M41 7.2...7.8

Test instruction for

Trailer Control Valves

973 002 (E)

8/9

4 Test side valve

Fig. 4 Test diagram "Side Valve"

Orifice diameter 2.5

8 bar

Manometer 11

Manometers 12/21

Shut-off cock 11

1 dcm³

Manometer 41

Shut-off cock 41

Fine control valve 41

8 bar

Shut-off cock 22

Shut-off cock 43

Shut-off cock 21

Manometer 22

Manometer 43

8 bar

Fine control valve 22

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 22

bar

M 43

bar

M 12 /

M 21

bar

Shut-off cocks 12, 21 and 22:

Open the pass.

Shut-off cock 12/21: Shut the

pass.

00 00 0

Fine control valve 41:

Increase pressure.

02,7 00 0

Fine control valve 22:

Increase pressure.

02,7 2,50 0

Fine control valves 11 and 43:

Increase pressure.

5,5 2,2 2,5 5,5 - Pressure flows off via nozzle at

connection 21:

Fine control valve 41:

Increase the pressure until the

pressure drops by 3.5 bar at

M 12/21 (test bench: M 3).

Wait for this value at M 12/21,

then test M 41 (test bench:

M2).

2,7

4,5...5,3

2,5

5,5

M 12/21

- 3.5 bar in

compari-

son to the

value in

the line

before.

Precision control valve 11, 22,

41 and 43: Reduce the pres-

sure.

00 00 0

9/9

Table 4: Test steps "Side Valve"

Shut-off cocks 12, 21 and 22:

Shut the pass. Shut-off cocks

11, 41, 42 and 43: Open the

vent.

0 0 0 0 0 Clean device and unclamp.

Test step

Manometer (M)

Comment

Default value Test value

M 11

bar

M 41

bar

M 22

bar

M 43

bar

M 12 /

M 21

bar

Tabla de contenidos

Otros manuales de Unidad de control de WABCO

WABCO

WABCO IR-2 Manual de servicio

WABCO

WABCO MICO ACV-DMO-RV Instrucciones de funcionamiento

WABCO

WABCO MICO ACV-SMO Instrucciones de funcionamiento

WABCO

WABCO 461 307 Manual de usuario

WABCO

WABCO MICO ACV-SMO Instrucciones de funcionamiento

WABCO

WABCO MICO ACV-DMN-LS Instrucciones de funcionamiento

WABCO

WABCO MICO 06-460-800 Guía rápida

WABCO

WABCO MICO 20-100-597 Instrucciones de funcionamiento

WABCO

WABCO ABDX Instrucciones de funcionamiento

WABCO

WABCO TP0223 Manual de servicio

WABCO

WABCO 461 317 Manual de usuario

Manuales populares de Unidad de control de otras marcas

Festo

Festo Compact Performance CP-FB6-E Manual de lista de piezas

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Manual de usuario

JS Automation

JS Automation MPC3034A Manual de usuario

JAUDT

JAUDT SW GII 6406 Series Guía rápida

Spektrum

Spektrum Air Module System Manual de usuario

BOC Edwards

BOC Edwards Q Series Manual de usuario

KHADAS

KHADAS BT Magic Manual de usuario

Etherma

Etherma eNEXHO-IL Manual de usuario

PMFoundations

PMFoundations Attenuverter Manual de usuario

GEA

GEA VARIVENT Manual de usuario

Walther Systemtechnik

Walther Systemtechnik VMS-05 Manual de usuario

Altronix

Altronix LINQ8PD Instrucciones de montaje

Eaton

Eaton Powerware Series Manual de usuario

WAGO

WAGO 750-407/040-000 Manual de usuario

Sony

Sony CCU-590 Manual de usuario

Graco

Graco 25D614 Manual de usuario

Task Force Tips

Task Force Tips YE-RF-900 Manual de programación

Shini

Shini SPV-U Series Manual de usuario