Arb RD111 User Manual download pdf (Page 15)

3 Installing the Air Locker

3.5 Preload Shim Measurement

In order to preload the tapered roller bearings in your Air Locker,

measurements need to be taken so that a value can be calculated for

the total shim thickness ‘E’ in Figure 5.

Figure 5.

c Assemble the shim pack determined earlier as ‘D’ (Fig.3.) into the

bearing bore of the deep half of the clamshell.

c Using a bearing press or arbor press, press the appropriate bearing

cup into the bottom of the same bearing bore (i.e., until it stops

against the shim pack).

HINT : You should not be able to rotate the shim pack

underneath the bearing cup if it has been pressed in

far enough.

c With the deep half of the clamshell sitting firmly on a horizontal

surface, set the Air Locker into the bearing cup inside the clamshell.

c Bend the seal housing tube so that it points straight away from the

seal housing flange.

c Assemble any remaining shims from the Air Locker shim kit

(supplied) together into one shim pack and measure the total

thickness.

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Arb RD111 User Manual Page 15