Service manual

ManualsBrandsBENDIX ManualsDryerAD-1 AIR DRYER

position the unit for ease of installation. Locate the

bracket such that it cradles the end cover as shown in

Figure 9. Utilizing the two 2-3/8" long cap screws, lock

nuts and special washers provided with the AD-9

™

air

dryer retrofit unit, attach the lower mounting bracket and

torque to 270-385 in. lbs.

2. Assemble the mounting strap and upper mounting

bracket as illustrated in Figure 10, by utilizing the 5/16"

cap screw (25) and sleeve nut (28).

3. Place the upper bracket assembly onto the shell of the

AD-9

™

air dryer and orient it so that it bears entirely on

the cylindrical surface and does not extend onto the

domed top. The slot spacing between the upper and

lower bracket should be a minimum of 5.5 inches apart.

Do not tighten strap onto the shell at this time.

4. Mount the AD-9

™

air dryer on the vehicle using 3/8" bolts

(grade 5 min.) and washers. Torque to 25 ft. Ibs. (300

inch pounds.) After positioning and mounting the upper

bracket assembly according to the installation

requirements, torque the 5/16" nut to 80-120 in. Ibs. to

tighten strap onto the shell.

CONNECTING THE AIR LINES

PURGE CONTROL LINE

1. Install a purge control air line having a minimum inside

diameter of 3/16 inches between the AD-9

™

air dryer

end cover control port and an unused unloader port on

the governor. The control line must be plumbed direct to

the governor and not in series with automatic drain valves,

lubrication systems, etc.

2. The control line should slope downward to the end cover

without forming potential water traps.

DISCHARGE LINE

General:

Refer to Appendix A, Table A for recommended discharge

line lengths and sizes for various vehicle applications and

vocations.

PURGE EXHAUST LINE

1. If it is necessary to direct AD-9

™

air dryer discharge

contaminants away from vehicle components it may be

necessary to purchase a special exhaust cover for the

AD-9

™

air dryer (Pc. No. 5003838). A one inch (25.4

mm) I.D. hose can be clamped on the special AD-9

™

air

dryer exhaust cover.

FIGURE 11 - AD-9

™

AIR DRYER CHARGE CYCLE

COMPRESSOR

10 AMP - 12V

5 AMP - 24V

SUP

CO N

14 GA WIRE

TO IGNITION

& GROUND

SAFETY VALVE

DEL

TO RESERVOIR

RESERVOIR

GOVERNOR

UNLOADER

PORT

DELIVERY

SUPPLY

CONTR OL

(

HIDDEN

)

FUSE