Bendix Commercial Vehicle Systems TP-5 TRACTOR PROTECTION VALVE 5/11 - Manual

1
®
SD-03-3655
Bendix ® TP-5 ™ Tractor Protection Valve
FIGURE 2 - BENDIX ® TP-5 ™ TRACTOR PROTECTION VALVE SCHEMATIC DIAGRAM
DESCRIPTION
The Bendix ® TP-5 ™ tractor protection valve is a panel or cross
member mounted unit designed to replace the Bendix ® TP-3 ®
valve plus two additional double check valves and quick
release functions. It may be used in conjunction with the
Bendix
® MV-3 ® module or independently. It contains a service
line shut-off valve with exhaust function, a service line quick
release valve and two double check valves.
OPERATION
The function of the TP-5 ™ valve is to receive all pneumatic
signals pertinent to the operation of the trailer brake system,
transmit the same to the trailer and also to protect the
tractor air supply in case of separation of the connecting
lines to the trailer.
TRACTOR PROTECTION PORTION
Air from the trailer supply control valve in the cab, such as
the MV-3
® module, enters at the trailer supply delivery port
and passes out the trailer supply port and simultaneously
acts upon the service line shut-off piston moving the
service line inlet valve off its seat and opening the service line
TO TRAILER
SERVICE
STOP LIGHT
SWITCH
FROM REAR
SERVICE
SERVICE LINE
SHUT-OFF
PISTON
FIGURE 1 - BENDIX ® TP-5 ™ TRACTOR PROTECTION
VALVE EXTERIOR
1/2" NPT
TRAILER
SUPPLY
1/4" PTC
STOP
LIGHT
SWITCH
3/8" NPT
TRAILER CONTROL
EXHAUST
1/2" NPT
TRAILER
SERVICE
3/8" NPT
FRONT SERVICE
3/8" PTC
REAR SERVICE
FROM TC VALVE
SERVICE
LINE QRV
VENT
TO TRAILER
SUPPLY
(EMERGENCY)
FROM TRAILER
SUPPLY VALVE
(E.G. MV-3 ® MODULE)
FROM FRONT
SERVICE