User manual BENDIX TE-1 TRAILER EMERGENCY STOP LIGHT

[. . . ] Referring to Figure 1 (Sectional View), with air pressure above approximately 60* psi in the line in which the switch is connected, air pressure acting upon the diaphragm under the plunger overcomes pressure of the spring and keeps the contacts separated. *Older switches were set at 55 psi. If air pressure in the air brake system reduces to approximately 60* psi for any reason, the spring overcomes the pressure under the diaphragm, closes the contacts and lights both tractor and trailer stop lights. Continued reduction of air pressure will disconnect tractor stop lights but the trailer stop light will continue to light. SD-06-1801 1 TE-1TM TRAILER EMERGENCY STOP LIGHT SWITCH WIRING DIAGRAM ACCESSORY POLE, IGNITION SWITCH, ETC. , THAT IS OFF WHEN ENGINE IS OFF IGN TLR TE-1TM TRAILER EMERGENCY STOP LIGHT SWITCH TTR ELECTRICAL COUPLING TRAILER STOP LIGHTS FIGURE 4 TRACTOR STOP LIGHT SWITCH TRACTOR STOP LIGHTS BATTERY PREVENTIVE MAINTENANCE Important: Review the Bendix Warranty Policy before performing any intrusive maintenance procedures. [. . . ] Alternate installation can be made with a tee connection off the emergency line after the tractor protection valve. Wire as per wiring diagram (Figure 4). TESTING FOR SERVICEABILITY A. With ignition switch on and system fully charged, make and hold a foot valve application and note that stop lights on tractor and trailer are functioning properly. Place tractor protection control valve in the emergency position and note that the trailer stop lights are functioning properly. Place tractor protection control valve in normal position and reduce air pressure in system by making several foot valve applications or by slowly draining reservoirs and observing dash gauge; note that trailer stop lights function at approximately 60* psi. Leakage Test Coat the entire switch with soap solution and check for leaks; no leakage permitted. If the trailer emergency stop light switch does not function as described or if leakage is present, it is recommended that the switch be replaced with a new switch available at the nearest Bendix authorized distributor. No attempt should be made to disassemble and repair faulty switch. WARNING!PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH: When working on or around a vehicle, the following general precautions should be observed at all times. Park the vehicle on a level surface, apply the parking brakes, and always block the wheels. Stop the engine and remove ignition key when working under or around the vehicle. When working in the engine compartment, the engine should be shut off and the ignition key should be removed. Where circumstances require that the engine be in operation, EXTREME CAUTION should be used to prevent personal injury resulting from contact with moving, rotating, leaking, heated or electrically charged components. Do not attempt to install, remove, disassemble or assemble a component until you have read and thoroughly understand the recommended procedures. [. . . ] Replacement hardware, tubing, hose, fittings, etc. must be of equivalent size, type and strength as original equipment and be designed specifically for such applications and systems. Components with stripped threads or damaged parts should be replaced rather than repaired. [. . . ]