CUMMINS N14 Manual de Instalação descarregar pdf (Página 7)

4. Reinstall solenoid valve using three new o-rings.

Coat solenoid body with engine lube oil and install upper

and center seal rings on solenoid body. Seat lower seal

ring in bottom bore of brake.

5. Carefully screw in solenoid valve, using care to assure

O-rings remain in position and are not twisted or "rolled".

Figure 5-3

6. Tighten solenoid valve to 5 lbft (7 N*M) torque.

Control Valve

Figure 5-4

1. Press down on control valve cover to relieve spring

pressure.

2. Remove retaining ring using retaining ring pliers.

3. Slowly remove the cover until spring pressure ceases,

then remove the two control valve springs and collar.

4. Remove control valve using needle nose pliers.

5. Wash control valve with solvent.

CAUTION

Control valve covers are under load from control valve

springs. Use care when removing control valve covers

to avoid injury.

Figure 5-5

6. Push on the check valve ball with a small wire through

the hole in the bottom of the control valve to make sure

that there is spring tension on the ball. The ball should lift

freely with a small amount of force and return quickly to

the seat when the force is removed. Replace the control

valve if it is defective.

7. Dip the control valve in engine lube oil and install in brake

housing. Control valve should slide in without any binding.

Replace control valve if binding occurs.

Figure 5-6

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CUMMINS N14 Manual de Instalação Página 7