TM 5-3805-262-205-4. INSTRUMENT PAN ELSMAINTENANCE (CONT)b. Right-hand Instrument Panel (cont).INSTALLATION (SHEET 2 OF 2)(16) At bottom of air reservoir, close drain valve .(17) Spray all terminals with electrical cleaner and allow to air dry. Thens p r a y t e r m i n a l s w i t h e l e c t r i c a l s e a l e r.(18) Connect battery ground cable (page 5-151).(19) Start and operate engine at idle speed until air pressure gage located onleft instrument panel cluster indicates in green area of gage; then turnoff engine.(20) Apply detergent and water solution to air pressure switch (12) and park-ing brake switch (15) and check for air leakage. If leakage is seen asindicated by bubbles, tighten switches. If leakage continues, or if leak-age is from air pressure switch or parking brake switch, replace switch.5-64
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