TM 55-1520-240-23-1
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SERVICE ROTARY-WING SHOCK ABSORBER (Continued)
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WARNING
Moving blades can seriously injure
personnel. Make sure area around
helicopter is clear of personnel before
moving rotor blades.
NOTE
Any of the three rotary-wing shock
absorbers on the aft and forward rotor
heads are serviced the same way.
NOTE
Rotor blades must be positioned as
shown to get correct reading of shock
absorber fluid level.
1.
Using tiedown line (1), turn rotor blades (2) so
one blade is 90 to left or right side of helicopter.
WARNING
Prolonged oil leakage can damage
finish and create a work hazard
by making the fuselage slippery. It
can also affect other systems in the
helicopter. Therefore, good judgment
must be used when determining
allowable leakage.
NOTE
If oil level in sight gauge drops from
full (half-way) mark to bottom of glass
in two hours of operation, leakage
is too great. Check for source of
leakage. Repair as required.
2.
Check fluid level on indicator (3) on shock
absorber (4) of the positioned blade. If fluid level
is within bull’s-eye (5), servicing is not required.
If fluid level is below bull’s-eye, go to step 3.
3.
Remove lockwire from cap (6).
4.
Remove cap (6).
WARNING
Hydraulic fluid (E197) is a skin irritant.
If fluid gets on skin, wash immediately
with soap and water.
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