Bendix-commercial-vehicle-systems QR-1C DBL CHECK QUICK RELEASE VALVE Manuel d'utilisateur télécharger pdf

FIGURE A

SD-03-904

DESCRIPTION

The Bendix

QR-1C

™

is a dual function valve. The valve’s

primary function is to serve the emergency side of a spring

brake actuator as a quick release valve. In addition, it

functions as an anti-compound device. The double check

valve prevents a service and emergency brake application

from occurring simultaneously.

The QR-1C

™

valve is generally mounted on the axle and

serves two spring brake actuators. The air connections to

the QR-1C

™

valve are as follows:

1. QR-1C

™

valve delivery port (2) connected to emergency

port of spring brake.

2. QR-1C

™

valve balance port (1) connected to delivery of

brake valve or relay valve. NOTE: If relay valve is installed

on vehicle, it should be connected to the delivery side

(not service or signal side).

3. QR-1C

™

valve supply port (1) connected to delivery of

park control valve.

In its standard configuration the valve is designed to deliver

within 1 psi of control pressure. However, for special

applications the valve is available with greater differential

pressure or zero hysteresis. QR-1C

™

valves also come with

optional noise reducing foam crosses or silencers. Some

QR-1C

™

valves can also come with biased double check

valves. These double check valves contain a beaded seat

cap nut (Figure B). The bias design minimizes low differential

leakage.

Bendix

QR-1C

™

Double Check and Quick Release Valve

Mounting Holes

Delivery (2)

Supply

Port(1)

Body

Quick Release

Diaphragm

Delivery

Sealing Ring

Exhaust

Cover

Sealing Ring

Double Check

Diaphragm

Balance Port(1)

Cap Nut

Beaded

(Biased) Seat

Non-Beaded

Identification

Mark

FIGURE B

1 2 3 4

Résumé du contenu

Page 1 - SD-03-904

1FIGURE ASD-03-904DESCRIPTIONThe Bendix® QR-1C™ is a dual function valve. The valve’sprimary function is to serve the emergency side of a springbrake

Page 2 - OPERATION

2OPERATIONSPRING BRAKES RELEASEDWhen the spring brakes are released, air from the park controlvalve flows through the QR-1C™ valve, causing the double

Page 3 - PERSONAL INJURY OR DEATH:

3INSTALLATIONMount valve with exhaust port pointing down; securely tightenmounting bolts. Reconnect air lines as identified duringremoval.GENERAL SAFE

Page 4

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Bendix-commercial-vehicle-systems QR-1C DBL CHECK QUICK RELEASE VALVE Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Bendix-commercial-vehicle-systems QR-1C DBL CHECK QUICK RELEASE VALVE. Bendix Commercial Vehicle Systems QR-1C DBL CHECK QUICK RELEASE VALVE User Manual Manuel d'utilisatio

Résumé du contenu

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