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1

 SD-03-1

151

RE-6

 VALVE DESCRIPTION

The RE-6

 valve is used in dolly and trailer brake systems.  

It is a dual function valve, combining the functions of a relay 
valve and an emergency valve.

The relay function is identical to that of a relay valve, a 
remotely controlled brake valve.  Control pressure from the 
towing vehicle is routed through the trailer service line and 

FIGURE 2  RE-6NC

 RELAY VALVE SPECIAL 

IDENTIFICATION TAG

RE-6NC SPECIAL
XXXXXX
SVC. REPL. XXXXXX

Bendix

®

 RE-6

 and RE-6NC

 Relay Valves

FIGURE 1 RE-6

 & RE-6NC

 RELAY VALVES

CAP 

SCREW

SEALING 

RING

O-RING

RELAY PISTON

SERVICE 

PORT

CHECK VALVE

DELIVERY 

PASSAGE

WASHER

SCREW

DIAPHRAGM

SPRING

MOUNTING 

FLANGE

EMERGENCY 

PISTON

INLET AND

EXHAUST

VALVE

SPRING

CHECK VALVE

EMERGENCY

SUPPLY PORT

CHECK

VALVE

NOT

PRESENT

CHECK VALVE

DELIVERY

PASSAGE NOT

PRESENT

RE-6NC

Valve

RE-6

Valve

EMERGENCY 

PORT

SERVICE 

PORT

DELIVERY PORTS 

(4)

RESERVOIR

PORT (2)

RE-6NC

 VALVE

ID TAG ATTACHED

SEE (FIGURE 2)

RE-6

 & RE-6NC

 

Valves

Summary of Contents for RE-6 RELAY EMERGENCY VALVE

Page 1: ...6NC RELAY VALVE SPECIAL IDENTIFICATION TAG RE 6NC SPECIAL XXXXXX SVC REPL XXXXXX Bendix RE 6 and RE 6NC Relay Valves FIGURE 1 RE 6 RE 6NC RELAY VALVES CAP SCREW SEALING RING O RING RELAY PISTON SERVI...

Page 2: ...voir Single Check Valve R 12P Valve SV 4 Valve Bulkhead Drain Valve PR 3 Valve Trailer Gladhand Single Check Valve RE 6 RELAY VALVE DOLLY SYSTEM CONFIGURATION Bulkhead SV 4 Valve RE 6 Valve Slack Adju...

Page 3: ...e acts upon the emergency piston pushing the emergency piston toward the inlet exhaust valve seat System pressure in the chambers and reservoir are still at 0 psi in the RE 6NC valve system allowing f...

Page 4: ...g drive away In the RE 6NC valve air is still acting upon the emergency piston but there is no pressure in the reservoir and the chambers The emergency piston and inlet exhaust valve have moved to the...

Page 5: ...10 PSI SERVICE BRAKE APPLICATION 10 PSI FIGURE 9 RE 6 RE 6NC RELAY VALVES SERVICE HOLD CHAMBER HOLD 5 PSI SERVICE HOLD 5 PSI NO AIR FLOW brakes Air is applied to the control port of the RE 6 and RE 6...

Page 6: ...nts 3 Do not attempt to install remove disassemble or assemble a component until you have read and thoroughly understand the recommended procedures Use only the proper tools and observe all precaution...

Page 7: ...ust port Leakage of a 1 bubble in 5 seconds is permissible 4 Make and hold a full brake application and again apply a leak check solution to the RE 6 or RE 6NC valve s exhaust Leakage of a 1 bubble in...

Page 8: ...nspect all air line fittings for corrosion Replace as necessary Remove all old thread sealant before reuse ASSEMBLY Before assembly lubricate all o rings seals and pistons as well as body and cover bo...

Page 9: ...in the maintenance kit INLET EXHAUST VALVE ASSEMBLY O RING 7 SPRING 5 SEALING RING 6 A O RING 8 O RING 2 O RING 13 O RING 14 O RING 19 O RING 21 SPRING 18 SPRING 20 SPRING 12 CHECK VALVE 17 SEAT 4 RE...

Page 10: ...ecks may be made With air pressure present at outlet side of check valve and the inlet side open to atmosphere coat the open end of the check valve with soap suds a 1 bubble in 5 seconds is permissibl...

Page 11: ...11...

Page 12: ...12 BW1570 2007 Bendix Commercial Vehicle Systems LLC All rights reserved 7 2007 Printed in U S A...

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