MAINTENANCE OF THE M88A1 - OD1672 - LESSON 1/TASK 2
With the other hand, fully depress the gage pin as shown in the figure and,
at the same time, rotate the gage on the end of the connector, ensuring that
the gage pin contacts the surface of the connector all the way around its
circumference. Excessive end connector wear exists when, with the pin fully
depressed, the gage pin does not, at any point, contact the connector
(6) Check for loose or missing center guides, caps, and nuts.
If the inspection described above reveals any of the
conditions listed, repairs are then accomplished by using the procedures in
Conditions for Classification.
To determine the serviceability
the new design, the sprocket (figure 7, view B, on the previous page) has a
wear limit indicator which provides a ready visual indication of the wear
limits. On the old design, sprocket wear must be checked by means of the
sprocket gage (figure 8, view A, on the following page).
The sprocket is classified unserviceable if the following conditions exist:
(1) On the new design sprocket, the wear indicator contour is no
(2) On the old design sprocket, any edge
sprocket falls below the edge of the gage limits.
Inspection of Sprocket.
(1) On the design sprocket (figure 7, view B), visually check for
wear by noting the amount of contour remaining on the sprocket wear
indicator. If the indicator is visible, the sprocket is still serviceable;
if not, it is unserviceable.
(2) On the old design sprocket, using the sprocket gage (figure 8,
view A), position the gage so that the two holes on the gage fit over the
sprocket bolts and the high part of the gage