MAINTENANCE OF THE M88A1 - OD1672 - LESSON 1/TASK 2
bushings and self-locking nuts. Identical track drive sprockets are located
and retained on the mounted drive hub with bolts, split tapered bushings,
and self-locking nuts.
The teeth on each sprocket mesh with the end
connectors on the inner and outer edges of the track.
The description of the operation of the suspension system is now completed.
In the following paragraph, we will describe the procedures for
classification of the track, sprocket, and roadwheel.
3.
Track Classification
a.
Conditions for Classification. The track is classified as serviceable
or unserviceable by inspecting the individual components that comprise it.
To determine the serviceability classification of the track or its
components an initial inspection is performed. This inspection examines the
track shoes, grousers, rubber, pins, shoe end connectors (figure 5 on the
following page), and center guides (figure 6, view A, on page 18).
(1) The individual track links are then classified
as
being
unserviceable if any of the following conditions exist:
(a) Shoe is dead or broken.
(b) Shoe pin is broken.
(c) Shoe grouser is worn down to less than 3/8 inch.
(d) Shoe rubber is worn down to pins.
(2) The track end connectors are
classified
as
unserviceable
if
excessive track end connector wear exists.
(3) Center guides are classified unserviceable if they are bent,
broken, or worn to less than 1/2 inch, as indicated in figure 6, view A.
b.
Inspection of Track Components.
(1) Visually inspect for broken or dead track shoes, broken pins, or
worn bushings (figure 6,
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