TM 55-4920-213-15
grime, grease, or other foreign materials are to
be removed from dial covers and cases, use a
solution of water and a mild soap or detergent.
Extreme cases may require the use of more ac-
tive compounds for the removal of foreign ma-
terials. Wipe off all moisture after cleaning.
Caution: Use only approved cleaning com-
pounds.
Follow the directions carefully when applying.
Service the controls of the pneumatic system by
removing oil, grit, grime, dirt, mud, grease, and
other foreign materials before and after opera-
tion. Materials to be used in cleaning controls
are the same as those used in cleaning instru-
ment dials and cases.
c. Adjustments. Operator adjustment of in-
struments is accomplished by use of the control
provided. The operator should not attempt to
Figure 14. Air line layout, front view.
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