BENDIX AD-1 AIR DRYER Podręcznik - Strona 13

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4. Position the end cover as marked during removal and

install the retainer ring so that the gap in the ring is

within an inch of the notch in the body.

5. Grease the threads on the three cap screws and reinstall

them with their retainers in the end cover.

6. Reconnect the air control line to the purge valve port in

the end cover.

7. Reconnect the thermostat and heater wire.

8. Test the air dryer as outlined under the Preventive

Maintenance and Checking Serviceability Section of this

manual.

INSTALLATION OF AD-1

DRYER

1. Install the air dryer in the compressor discharge line as

close to the supply (first) reservoir as possible. The

discharge line between the compressor and air dryer

must not exceed 20 feet in length nor less than six feet

in length for a two cylinder compressor or ten feet in

length for a single cylinder compressor. Six feet of

discharge line and a 90 cubic inch reservoir can be used

in lieu of ten feet of discharge line for single cylinder

compressors.

The discharge line should slope downward from the

compressor to the air dryer inlet to avoid water traps

and to allow drainage to the air dryer. (If the 90 cubic

inch reservoir is used, it should also be mounted and

plumbed to avoid water traps and to allow drainage into

the air dryer.) Discharge lines may be either be copper

tubing or high temperature hose. However, Bendix

compressors require a minimum of four feet of copper

tubing extending from the discharge port. The balance

of the discharge line may be either copper tubing or

high temperature hose.

2. Locate outside the engine compartment in an area of

air flow when the vehicle is in motion. Do not mount

near exhaust system or other heat-producing

components and avoid road-splash areas. Provide 20

cm (8 in.) clearance below dryer for servicing.

3. Mount vertically, with purge valve exhaust toward the

ground, away from the frame and other components.

Connect a hose to the exhaust cover if necessary, since

this valve may expel rust and scale particles as well as

condensate and oil collected in the dryer.

4. Connect the purge valve control port to one of the

governor unloader ports. This line should be routed such

that no water traps are formed.

5. For the dryers with a 3/4-14 or 1 - 11-1/2 dryseal outlet

port, a check valve must be placed between the purge

volume and the first downstream reservoir. (Dryers with

1/2-14 dryseal outlet ports have a built-in check valve.)

6. Connect a fused #16 gauge wire from the "on" position

of the engine control or ignition switch to the heater

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AND AD-2

AIR

terminal. This connection must be waterproof. Use an 8

to 10 amp. fuse with 12 volt end covers and with 24 volt

end covers identified with the marking "24V 120W." Use

a 4 to 5 amp. fuse with 24 volt end covers identified with

the marking "24V."

IMPORTANT NOTE: A new 24 volt heater was

introduced in 1983. The new heater version draws

120 watts of power and requires an 8 to 10 amp fuse.

End covers with the new heater are identified with

the marking "24V 120W" cast on the identification

boss of the end cover. The previous identification

was "24V".

MAINTENANCE KIT FOR THE AIR DRYER

286718 DESICCANT CARTRIDGE REFILL KIT

This kit can only be used on new revision cartridges.

See the cartridge rebuild section of this manual for

proper identification of current revision cartridge.

This kit contains the necessary parts to rebuild the

cartridge and the desiccant sealing plate.

287313 DESICCANT CARTRIDGE REPLACEMENT KIT

This kit contains a factory replacement desiccant

cartridge and the parts necessary to rebuild the

desiccant sealing plate.

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285519 AD-1

AIR DRYER PURGE VALVE MAINTENANCE

KIT

This kit contains the parts necessary to rebuild the

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AD-1

air dryer end cover purge valve only.

287053 AD-2

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AIR DRYER PURGE VALVE MAINTENANCE

KIT

This kit contains the parts necessary to rebuild the

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AD-2

air dryer end cover purge valve.

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287298 AD-2

AIR DRYER CHECK VALVE MAINTENANCE

KIT

This kit contains the components necessary to

rebuild the inline single check valve that is used in

AD-1

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air dryer installations must be serviced

separately.

288918 THERMOSTAT COVER REPLACEMENT KIT

This kit contains the parts required to replace the

non-metallic thermostat cover only. This kit is used

to replace a damaged cover and does not

contain thermostat parts.

102657 THERMOSTAT MAINTENANCE KIT

This kit contains the necessary components to

rebuild the thermostat assembly in the AD-2

dryer.

101900 REMANUFACTURED DESICCANT CARTRIDGE

AND DESICCANT SEALING PLATE.

This unit allows for complete exchange, as a unit,

of the cartridge and desiccant plate.

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air