MAINTENANCE OF THE M88A1 - OD1672 - LESSON 1/TASK 2
(2) With a ruler, check the grouser (figure 5 on the previous page)
height to ensure it has a thickness of 3/8 inch or more.
(3) Visually check the track shoes for missing rubber or rubber worn
down to the pins.
(4) Visually check for loose or damaged track shoes and connectors.
INSPECTING TRACK GUIDES