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TM 5-4210-230-14&P-1
AXLES-FRONT
TRUCK SERVICE MANUAL
CHAPTER I
DESCRIPTION
Locking hubs provide a means of controlling the
engagement of the front wheels with the front driving axle.
When-the locking hubs are engaged or "LOCK, " full power is
transmitted to both wheels, Fig. 1. When both front wheels
are disengaged or in "FREE" position, Fig. 2, the front wheels
will turn but the axle shafts and differential will remain idle,
overcoming any unnecessary wear.
Fig. 1 Locking Hub (Manual Type)
Fig. 2 Locking Hub (Lock-O-Matic)
Manual Type
There are at present two types of manual locking hubs
which were and are being used on I.H. vehicles. The original
locking hub, Figs.
3, 4 and 6, is engaged or disengaged by turning the control
assembly to "LOCK" or "FREE" position. If the arrow and the
dot do not line up directly across from each other at the
desired setting, the clutch ring and axle hub are not aligned,
and moving the vehicle forward or backward slightly will
permit the engagement of the clutch ring on the axle shaft.
Fig. 3 Locking Hub Engaged ("LOCK") Position
Fig. 4 Locking Hub Disengaged ("FREE") Position
CTS-2209-P Page 2
PRINTED IN UNITED STATES OF AMERICA
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