Arb RD74 Manuel d'utilisateur télécharger pdf (Page 22)

3 Installing the Air Locker

3.9

Bench Testing the Air Locker

 To test the Air Locker, when 620kPa [90 PSI] shop air is applied to

the seal housing tube, the Air Locker should engage.

 Check all fittings and the seal housing for air leaks.

 Rotate the differential carrier by turning the pinion flange whilst

applying air pressure.

NOTE : An accurate way to test for air leaks is to fit a shut-off

valve to an air pressure gauge.

(ARB part # ALTG01 shown in Fig.16.).

Once 620 KPA [90 PSI] is reached close the valve,

disconnect the air hose, and watch to see if there is any

drop in pressure. If so, this will indicate an air leak.

Figure 16.

If a leak is found to be present, spray a soap and water mixture onto

the bulkhead air fitting. Bubbles should appear at any leak points.

NOTE : Do not spray this soapy mixture inside the differential.

 Check that leaky fittings have been adequately tightened.

 Disassemble, clean threads, and reapply thread sealant if leaking

persists.

 If a leak is found at the seal housing, carefully remove and refit. Be

very careful with the O-rings and check they have not been

damaged during installation.

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Arb RD74 Manuel d'utilisateur Page 22