Arb RD81 Manuel d'utilisateur télécharger pdf (Page 11)

2 Removing the Existing Differential

IMPORTANT:

Some Salisbury axles were manufactured with poor oil drainage

between the axle tubes and the differential housing. This can often

result in one of the axle tubes filling up with differential oil while

running. In most cases this will result in a blocked air vent which

will cause the differential housing to pressurize and expel oil from

the axle seals at the wheels or force oil into the air system of the Air

Locker, eventually expelling oil at the solenoid valve. This is a

design flaw which was corrected by most automakers in the later

releases of their axle assemblies. If no lower drainage point is

present in the differential housing then it is critical that you modify

the housing to include one.

 Inspect the differential housing for the presence of adequate drainage

in both axle tubes (refer to Fig.4.).

Figure 4.

 If drainage is inadequate or does not exist then a slot or hole should

be cut into the housing on the lower side of the tube(s) to allow oil out

of the axle tube area.

NOTE : Make sure any grinding dust, filings or drill chips left

behind by cutting the drainage slots is completely

cleaned out of the housing.

 Check that the axle air vents are clear and working correctly.

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Arb RD81 Manuel d'utilisateur Page 11