BENDIX BW1585 Bedienungsanleitung Seite 1

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1
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
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Inhaltsverzeichnis

Seite 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

Seite 2 - OPERATION

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

Seite 3 - PERSONAL INJURY OR DEATH:

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

Seite 4

4BW1585 © 2006 Bendix Commercial Vehicle Systems LLC. All rights reserved. 7/2006 Printed in U.S.A.

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