BENDIX SR-1 SPRING BRAKE VALVE Manual Download | Manualshive

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BW1589 © 2004 Bendix Commercial Vehicle Systems LLC. All rights reserved. 3/2004 Printed in U.S.A.

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Summary of Contents for SR-1 SPRING BRAKE VALVE

Page 1: ...ust valve B In the position shown the exhaust is closed and the inlet is open Air flowing from the No 1 reservoir only enters the reservoir port of the SR 1 valve This air remains under piston A as system pressure builds With No 1 reservoir pressure below approximately 55 P S I the spring above piston A forces it into contact with inlet and exhaust valve A causing the exhaust to seal and the inlet...

Page 2: ...S 1 PARK CONTROL MODULATOR SUPPLY RESERVOIR 1SERVICE RESERVOIR 2SERVICE RESERVOIR DOUBLE CHECK VALVE LQ 4 VALVE LP 3 INDICATOR R 8 VALVE R 8 VALVE SB 3 SB 3 SB 3 SB 3 1SERVICE RESERVOIR 2SERVICE RESERVOIR DOUBLE CHECK VALVE PARK CONTROL SB 3 PISTON B CHECK VALVE INLET EXHAUST A PISTON A INLET EXHAUST B EXHAUST ...

Page 3: ...lve A No movement of the internal components of the SR 1 valve takes place Air from the No 1 delivery circuit of the dual brake valve actuates the service section of the spring brake actuators OPERATION SERVICE APPLICATION WITH LOSS OF NO 2 RESERVOIR PRESSURE In the event air pressure is lost in the No 2 reservoir the No 1 reservoir and the parking control valve will be protected via the double an...

Page 4: ...closes the hollow exhaust passage of piston A Continued movement of the piston opens the inlet of valve A The No 2 service reservoir and the park control valve are protected from pressure loss by the action of the double check valve When a service application of the dual brake valve is made air delivered from the No 2 delivery circuit of the dual brake valve enters the SR 1 valve control port Air ...

Page 5: ...l valve in the park position Observe that the spring brake actuators apply promptly In the delivery port of the valve install a test gauge known to be accurate Place the parking control valve in the release position Observe that the spring brake actuators release fully 2 With the parking control valve in the release position note the gauge pressure reading Check the vehicle manual for the correct ...

Page 6: ...an be expected to fall off after assembly is accomplished Do not retorque after initial assembly torques fall 1 Assemble the check valve 4 and valve spring 2 and install in body 2 Apply pipe sealant to the socket head pipe plug 1 and install in the body Tighten to 130 170 inch pounds torque 3 Install inlet and exhaust valve assembly 7 in valve body 4 Secure the exhaust cover 5 with two 10 24 phill...

Page 7: ...safely removes all electrical power from the vehicle 6 Never exceed manufacturer s recommended pressures 7 Never connect or disconnect a hose or line containing pressure it may whip Never remove a component or plug unless you are certain all system pressure has been depleted 8 Use only genuine Bendix replacement parts components and kits Replacement hardware tubing hose fittings etc must be of equ...

Page 8: ...8 BW1589 2004 Bendix Commercial Vehicle Systems LLC All rights reserved 3 2004 Printed in U S A ...

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