Arb RD138 Manuel d'utilisateur télécharger pdf (Page 17)

3 Installing the Air Locker

3.6 Installing the Seal Housing

c Make sure the grooves and airway of the seal housing are clean

and free from any contaminants (e.g. water, dirt, metal filings, etc.).

c Inspect the seal housing O-rings (supplied) for dirt, damage or

other conditions which might cause leaks.

c Generously lubricate the O-rings with oil prior to assembly, then

insert them into the grooves of the seal housing.

NOTE : When assembling the O-rings, be careful not to leave

them twisted when seated in the grooves as this could

cause excessive wear and leakage.

c Lubricate the seal housing running surface on the Air Locker carrier

with oil.

c Carefully install the seal housing by sliding it all of the way onto the

bearing journal with a gentle twisting motion until it sits flat against

the adjuster nut.

NOTE : A twisting motion (i.e., a slight rotation while pressing

the seal housing on) will allow the O-rings to engage

gently and prevent them from twisting. Twisted

O-rings will result in pre-mature O-ring wear and oil

contamination in the air system due to the helical

shape formed by the O-ring mould line.

c Rotate the seal housing until the square cutout lines up with the

locking tab position at the center of the bearing cap, and then

assemble the locking tab. The locking tab must not come into

contact with the seal housing. (Fig.9.)

Figure 9.

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Arb RD138 Manuel d'utilisateur Page 17