User manual BENDIX E-2-E-3 BRAKE VALVES

[. . . ] The E-2TM and E-3TM valves have an insert type inlet/exhaust valve assembly which can be removed without disconnecting air lines. An exhaust check valve in the bottom of the insert prevents contaminants from entering the valve through the TM TM exhaust port. An optional exhaust extension is available should an exhaust carry-off line be required. Porting consists of two (2) 1/2 inch p. t. [. . . ] Apply 2 to 4 drops of oil between the plunger and mounting plate. Lever/linkage operated valves should be adjusted so that the roller just contacts plunger. Check for integrity of mounting plate and treadle and/or pedal. SERVICE TESTS Operating Test (IMPORTANT!!!Tests should be conducted with an accurate test gauge. ) Install gauge in a delivery port or line; depress the treadle or pedal to several positions between fully released and fully applied positions, checking the delivery pressure on the gauge to see that it varies proportionately with the movement of the treadle or pedal. In the fully applied position, the reading on the gauge should be approximately that of full reservoir pressure. Upon release of the application, the reading of the test gauge should fall to zero psi immediately. Leakage Test With 100 psi supply pressure and valve in released position, coat exhaust port with soapsuds arid check for leakage. NO leakage permitted. DISASSEMBLY NOTE: Disassembly and assembly instructions are keyed to Fig. Remove treadle or lever assembly, boot and plunger. Depress piston assembly and remove retainer (4). Remove piston assembly (7) and piston return spring (2) from body. Remove cap screw (6), washer (8), spring seat (9), and rubber spring (10) from piston assembly (7). Remove retaining ring (1) and inlet/exhaust insert assembly (11) from body. 2 Insert Disassembly NOTE: It is recommended that entire inlet/exhaust insert be replaced as an assembly. Remove o-ring (17) from check valve seat (16). Remove screw (20), washer (19), and diaphragm (18). Depress and hold insert, and remove preload spring (21). Remove inlet/exhaust valve (14), valve spring (13), and o-ring (15). Cleaning and Inspection Wash all metal parts in mineral spirits and dry. Inspect all parts for excessive wear or deterioration. Inspect valve and valve seats for nicks and burrs. Check springs for cracks, distortion or corrosion. Inspect exhaust check diaphragm for flexibility, wear, and deterioration. [. . . ] Never exceed manufacturer's recommended pressures. 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. Use only genuine Bendix ® replacement parts, components and kits. [. . . ]