Bendix Commercial Vehicle Systems E-14 DUAL BRAKE VALVE 3/04 - Manual (Page 8)

8
FIGURE 10
2. Place primary piston(2) on a flat surface and install rubber
spring(9) and metal graduating spring(8).
3. Install graduating spring retainer(7) on top of graduating
spring(8), making certain that the side with the high
circular protrusion is away from the spring.
4. Manually depress and hold spring retainer(7) in piston(2),
then install snap ring(6), making certain it is completely
seated in its groove in piston(2).
5. Install o-rings(15) on both valve assemblies(13).
6. Install valve spring(14) in piston(2), then install valve
assembly(13) in the spring.
7. Install o-ring(12) into the o-ring groove of piston(2), then
install valve seat(11) on valve assembly(13). Gently
depress and hold the valve seat in piston(2) while
installing retaining ring(10).
8. Install o-rings(3 and 5) on primary piston(2), then install
wear rings(4) in the o-ring grooves next to the o-rings.
Make certain that one flange of the wear ring(4) is in the
o-ring groove, while the opposite flange extends away
from the end of piston(2) and toward the center. The
wear ring flange MUST NOT COVER OR OVERLAP
EITHER O-RING. (See Figure 10.)
9. Carefully insert the assembled primary piston(2), valve
end first, into the primary valve body until the piston
retaining ring groove in the body is visible. Make certain
o-rings(3 and 5) and wear rings(4) are not damaged in
the process. Do not force the piston. If substantial
resistance is encountered, check for proper installation
of the wear rings.
10. Install piston retaining ring(1) in its groove in the
secondary body, making certain it is fully seated in the
groove.
11. Install plunger(21) in its return spring(22). Install the spring
and plunger on secondary piston(18). While manually
depressing and holding the plunger and spring on the
piston, slide plunger and spring retainer(23) into place
so that it secures both the plunger and spring to the
piston. Make certain the retainer flanges are securely
around piston lip and plunger groove.
12. Install o-rings(19 and 20) on secondary piston(18).
13. Install diaphragm retainer(27), diaphragm(26), diaphragm
washer(25). and screw(24) in the exhaust port. Torque
screw to 15-25 in. lbs. NOTE: Some E-14
™ brake valves
have threaded exhaust ports instead of items 24-27.
14. Install valve spring(14) in the secondary body, then install
valve assembly(13) in the spring.
15. Install o-ring(12) into the o-ring groove of piston(2), then
install valve seat(11) on valve assembly(13). Gently
depress and hold the valve seat in the secondary body
while installing retaining ring(10).
16. Install the assembled secondary piston(18) in the primary
body, making certain that o-rings(19 and 20) are not
damaged.
17. Install o-ring(17) on the secondary body. Join the
assembled secondary and primary bodies. Secure the
bodies using the four cap screws(16), and torque to 30
to 60 in. lbs.
18. Install the pedal mounting plate on the basic brake valve,
noting the relationship marked during VALVE REMOVAL
step 2. Secure the mounting plate to the valve using the
three cap screws and torque to 80 to 120 in. lbs.
19. If using a manifold-type valve, install the sealing rings
and adapter sleeves that connect the valve to the
manifold. Install the manifold on the valve, and secure
with its bolts. Torque to 80 to 120 in. lbs.
20. Install all air line fittings and plugs, making certain thread
sealant material does not enter the valve.
VALVE INSTALLATION
1. Install the assembled brake valve on the vehicle.
2. Reconnect all air lines to the valve using the identification
made during VALVE REMOVAL step 1.
3. After installing the brake valve assembly, perform the
“OPERATIONAL & LEAKAGE CHECKS” before placing
the vehicle in service.
PRIMARY PISTON
O-RING
WEAR RINGS
O-RING
DEL-1
21
SUP-1
11
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BW1666 © 2004 Bendix Commercial Vehicle Systems LLC. All rights reserved. 3/2004 Printed in U.S.A.