TM 5-4320-302-14
Hand tighten nut assembly as necessary to make a tight, vibration-free installation.
Overtightening will deform the element.
(f) Install nut assembly and hand tighten.
(g) Install baffle assembly.
(h) Install cup assembly.
NOTE
Install cup assembly with arrows pointing up.
(i) Seat cup assembly against body assembly.
Hand tighten clamp assembly as necessary to make a tight, vibration-free installation.
Overtightening will deform the cup assembly or the body assembly.
(j) Hand tighten clamp assembly.
(k) Reset air cleaner intake restriction indicator.
2-9. OPERATION IN HIGH ALTITUDES
The operating efficiency of the engine diminishes at higher altitudes. Be sure that engine is operating at peak efficiency.
2-10. OPERATION IN SANDY OR DUSTY AREAS
Monitor air cleaner intake restriction indicator more closely in sandy or dusty locations. At first
sign of restriction, change filter elements.
a. If red flag appears in window of air cleaner restriction indicator and rain cap is not blocked and no damage to
system components is found, replace primary and secondary elements as described in paragraph 2.8.f.
b. With engine stopped, inspect to be sure that cylinder cooling fins are clean and free of dirt that inhibits cooling.
Clean cooling fins with a stiff-bristled brush.
c. With engine stopped, inspect to be sure that bottom roller is clean and free of dirt. Clean bottom roller with a
stiff-bristled brush. Check for damaged or deformed fan blades.
2-66
