Bendix Commercial Vehicle Systems E-3 BRAKE VALVES 10/11 - Manual (Page 3)

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Insert Disassembly
NOTE: It is recommended that entire inlet/exhaust insert be replaced
as an assembly.
7. Remove o-ring (17) from check valve seat (16).
8. Remove screw (20), washer (19), and diaphragm (18).
9. Depress and hold insert, and remove preload spring (21).
10. Remove inlet/exhaust valve (14), valve spring (13), and o-ring
(15).
11. Remove valve retainer (12).
Cleaning and Inspection
Wash all metal parts in mineral spirits and dry. Wipe all rubber parts
clean.
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.
Replace all parts not considered serviceable during these
inspections.
ASSEMBLY
1. Lightly lubricate the piston, valve bores, and o-rings with Dow
Corning 55-M pneumatic grease (Bendix piece number 291126).
2. Position rubber spring (10) in piston (7).
3. Install spring seat (9), washer (8), and cap screw (6). Torque cap
screw to 50 inch pounds.
4. Install piston o-ring (3) and place piston return spring (2) in body.
5. Install piston retainer (4). Be certain the prongs snap over groove
in valve body.
Insert Assembly
6. Position preload spring (21) in exhaust check valve seat (16).
7. Install diaphragm (18), diaphragm washer (19) (with lips pointing
out), and install screw (20). Tighten screw securely.
8. Install o-ring (15) and valve retainer (12) on inlet / exhaust valve
body (14).
9. Install valve spring (13) on exhaust check valve seat (16) and install
inlet/exhaust valve (14) into exhaust valve seat (16). Press the
valve down until the preload spring snaps and holds the assembly
together.
10. Install o-ring (17) on exhaust check valve seat (16).
11. Place inlet/exhaust insert in valve body; position identifi cation
washer. Press the insert down while installing retaining ring (1).
Make certain retaining ring snaps into body groove, thus locking
in the insert in place.
Testing A Rebuilt E-2 ™ or E-3 ™ Brake Valve
Perform operating and leakage tests as outlined in “Service Tests”
section.