BENDIX E-14 DUAL BRAKE VALVE Manual - Página 8

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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

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).

™

brake valves

DEL-1

SUP-1

FIGURE 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