BENDIX AD-1 Service Data - Seite 10

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12. Using the lock nut, draw the assembly together to

ap proximately half of the spring's free height. While

slowly turning the cartridge, tap the side of the shell

with a plastic mallet. (See Figure 14.) This allows

the desiccant material to settle properly into place.

Con tinue to tighten the nut, making sure all items are

pro perly aligned. Tighten nut ﬁ rmly using an 11/16"

socket or box wrench. (See Figures 15-1 and 15-2)

REBUILDING THE BENDIX

END COVER ASSEMBLY

To remove the end cover assembly from the air dryer,

follow steps 1-6 under the section of this manual entitled

Removal of Desiccant Cartridge. Before rebuilding the

end cover, clean the exterior thoroughly using a quality

commercial solvent.

DISASSEMBLY

1. Remove and discard the large o-ring around the end

cover.

2. Remove the exhaust elbow and clamp.

3. Remove the cap nut and discard the cap nut o-ring.

4. Place the handle of a large screwdriver in a vise and

secure it.

5. Place the slot in the plunger (cap nut end) over the

blade of the screwdriver, hold it securely and remove

the nut from the plunger using a 1/2" socket wrench.

6. Remove the plunger, spring, and valve. Discard the

valve.

7. Clean and inspect the plunger bore and the valve seat.

8. Remove and discard the three o-rings from the plunger.

Clean the plunger.

Figure 14 – Settling Desiccant

AD-1

™

AIR DRYER

Figure 15-1 – Securing the Cartridge

Figure 15-2 – Secured Cartridge

NOTE: If during the serviceability checks it was

determined that the heater and thermostat were

defective, use the following procedure. It is not

necessary to replace this assembly each time the purge

valve is rebuilt.

9. Remove the two screws that secure the shield or

thermostat retaining clip to the end cover.

10. Remove the shield or clip and the thermostat and

inspect the bore for corrosion.

11. Remove the square-cut seal ring at the bottom of the

thermostat bore.

12. Remove the screw, retaining clip, o-ring, and the heater

element. Inspect the bore for corrosion and if necessary,

clean it.