CSP–520N–1
MD 520N (500N) ROTORCRAFT FLIGHT MANUAL
R
Revision 2
7–15
FAA Approved
Aft transmission:
A liquid level sight gauge for checking oil level is located on the lower right
hand side of the transmission housing (Ref. Figure 7−4).
Check oil level by viewing sight gauge.
Servicing of the aft transmission should be performed by maintenance per(
sonnel.
7–11. CLEANING GENERAL
General cleaning of oil and dirt deposits from the helicopter by using dry(
cleaning solvent, standard commercial grade kerosene or a solution of deter(
gent soap and water.
Exceptions that must be observed are specified in the following cleaning para(
graphs.
Some commercial cleaning agents, such as readily available
household cleaners, contain chemicals that can cause corrosive
action and/or leave residue that can result in corrosion. Examples
of cleaning agents that are not to be used are ‘‘Fantastic’’ and ‘‘409’’
type cleaners, or locally made strong soap cleaners.
7–12. CLEANING FUSELAGE INTERIOR TRIM AND UPHOLSTERY
Clean dirt or dust accumulations from floors and other metal surfaces with
vacuum cleaner or small hand brush.
Sponge soiled upholstery and trim panels with a mild soap and luke−warm wa(
ter solution. Avoid complete soaking of upholstery and trim panels. Wipe solu(
tion residue from upholstery with soft cloth dampened with clean water.
Remove imbedded grease or dirt from upholstery and carpeting by sponging or
wiping with an upholstery cleaning solvent recommended for the applicable
fabric (nylon, vinyl, leather, etc).
NOTE
:
If necessary, seat upholstery may be thoroughly dry-cleaned with solvent. When
complete dry cleaning is performed, upholstery must be re–flameproofed to
comply with Federal Aviation Regulation Part 27.
CAUTION
