Arb RD110 Manuel d'utilisateur télécharger pdf (Page 26)

3 Installing the Air Locker

3.13 Bench Testing the Air Locker

c To bench test the Air Locker; when 620kPa [90 PSI] shop air is

applied to the seal housing tube, the Air Locker should engage.

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

c 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. (Fig.16.) Once 620 KPA

[90 PSI] is reached the valve can be off, the air hose

disconnected, and the pressure gauge observed to see

if there is any drop in pressure.

Figure 16.

c 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.

c Check that leaky fittings have been adequately tightened.

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

persists.

c If a leak is found at the seal housing, remove the Air Locker and

carefully remove the seal housing assembly and examine the O-

rings. Be very careful with the O-rings and check for defects,

damage, wear, or presence of foreign material in the O-ring

grooves. Replace if necessary.

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Arb RD110 Manuel d'utilisateur Page 26