SAFARI

FRONT AXLE - 4

2. Introduction

When 4-wheel drive is selected,the automatic hub locks the axle shaft to thewheel hub.This occurs if the vehicle is driven

in either forward or reverse direction. The hub unlocks when 2-wheel drive is selected, and the vehicle is driven in the

opposite direction for a few feet.

2.1 Construction &Operation

(See Fig. 1 & 2)

Construction

TheTangedwasher is held in place on theWheel Spindle.

The cut-outs on the drag sleeve (26) fits over the tangs on

thewasher,preventing the drag sleeve fromrotating.The

brake band (24) fits over the serrated portion of the drag

sleeve.The tangs of the brake band are fitted through the

window in the steel inner cage (21). The plastic outer

cage (20) fits over the inner cage. Each tang of the brake

band fits through each cutout in the outer cage.The cam

follower (19) is attached to the clutch gear(15). The

follower profile on the cam follower (A) ride against the

cam faces or ramps of the steel inner cage. The clutch

gear slides on the splines on the hub sleeve (16).The axle

shaft (C) is splined to the inside of the hub sleeve. The

large teeth on the outside of the clutch gear can engage

the teeth inside the outer clutch housing (9). The outer

clutch housing is bolted to thewheel hub. An end cap (2)

fits over thehubassembly.The endcapcontains abearing

assembly (6) that supports theother endof thehubsleeve.

The EndCap is fittedwith anAluminiumDecorative Plate

for better aesthetics.

Fig. 2

Operational Summary

Briefly, this is what happens when the hub locks,

The clutchgear (15) and cam follower (19) rotate up the

cam face of the inner cage (21). This causes the clutch

gear to move outward on the hub sleeve (16). The out

side teeth of the clutch gear engage the inside teeth of

the outer clutchhousing (9). locking thewheel hub to the

axle shaft.

When the hub un-locks.

The clutch gear and camrotate in the opposite direction,

backdown the camfaceof the inner cage. Springpressure

forces the clutch gear inward, unlocking the wheel hub

from the axle shaft.