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
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