HOLES BOTTOM VIEW ™ FIGURE 1 - MV-3 DASH CONTROL MODULE DESCRIPTION TRACTOR SERVICE RESERVOIR #1 The Bendix ® MV-3 ™ dash control module is a two-button, push-pull control valve housed in a single body which includes EXHAUST ™ a dual circuit supply valve and a check valve. The MV-3...
OPERATION NORMAL OPERATING POSITION (FIGURE 5) With both buttons pushed in, air is supplied to the trailer During initial charge, with the system completely discharged, and to the tractor spring brakes; all brakes are released. both buttons are out (Figure 3). When system pressure reaches 65 P.S.I., the red button (trailer supply) may be pushed in (Figure 4) and should stay in, charging the trailer system and releasing the trailer brakes.
This complies with Federal Regulations that one or repair it using genuine Bendix parts. control must apply all the parking brakes on the vehicle. 9. Close all reservoir drain cocks and deliberately caused TRAILER CHARGE (FIGURE 4) leakage points before placing the vehicle in service.
ASSEMBLY DUAL CIRCUIT SUPPLY VALVE 1. Lubricate all o-rings and bores with silicone lubricant. Bendix Pc. No. 291126 or Dow Corning 55-M. VALVE BODY 2. Place the check valve (17) into its seat in the body with its flat surface facing upward. If necessary, reach into...
3. Install o-rings (24 & 13) onto the check valve (23). Then 4. Repeat Steps 1, 2, and 3 with the remaining components ™ install the assembly into its cavity in the MV-3 valve for the opposite spool. body. SHUTTLE AND CHECK VALVE 4.
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