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46

FRONT AXLE - 4

X

4

Operation (Fig 3 & 4)

When 4-wheel drive is engaged (and vehicle starts to

move), the axle shaft starts to turn the hub sleeve (16),

clutch gear (15), and cam follower (19). The steel inner

cage (21) and plastic outer cage (20) also start to turn.

(The drag sleeve (26) is fixed to the Wheel spindle and

doesn't rotate) When the inner cagewindowhits the first

brake band tang (30) the band tightens up on the drag

sleeve.This stops the inner cage.The cam follower (19) is

forced up the ramp of the inner cage (21).

As the camfollowermoves up the rampof the inner cage,

it is moved outward along the hub sleeve (16), pushing

theclutchgear (15) intoengagementwith theouter clutch

housing. The cam follower (19) also pushes against the

lugs of the outer cage (20).The outer cage tang contacts

the second brake band tang (30).This unlocks the brake

band and allows it to turn freely on the drag sleeve

serrations.

When 2-wheel drive is selected to disengage the hubs,

and the vehicle is driven in the opposite directions for a

few feet, the rotating front wheel turns the outer clutch

housing, clutch gear (15) and cam follower (19) in the

opposite direction. The cam follower moves down the

rampof the inner cage (20).The return spring (14) pushes

the clutch gear (15) along the hub sleeve (16) and out of

engagement with the outer clutch housing.

16

12

13

14

13

15

19

26

30

16

12

13

14

13

15

19

26

30

Fig. 3

Fig. 4