Handling, Servicing & Maint.
Pilot's Flight Manual
Reissued: 16 Jan 2019 7-9
7-8. MAIN TRANS MIS SION - SER VICING
The trans mis sion trans mits power to the main and tail ro tor as sem -
blies. The trans mis sion is lo cated aft of the cabin sec tion along the
air craft cen ter line and has a self-con tained lu bri ca tion sys tem. Oil
quan tity is checked by view ing the sight gage or with a dip stick lo -
cated on the right-hand rear side of the trans mis sion. There are two
grad u a tions, FULL and LOW. A lock ing de vice is in cor po rated to
pre vent the dip stick from com ing out of the trans mis sion dur ing
flight. Oil is added to the trans mis sion through a filler port above
and/or for ward of where the level is checked. The port in cor po rates
an over cen ter ramp or safety wired cap to pre vent loss of oil.
Main Trans mis sion Oil Ca pac ity
3 U.S. quarts, to tal
Rec om mended Lu bri cants
SAE HD90 J2360, MIL-L-2105 or MIL-PRF-2105 ap proved for
use at -18°C (0°F) to 43°C (110°F).
SAE HD80 J2360, MIL-L-2105 or MIL-PRF-2105 ap proved for
use at -29°C (-20°F) to 4°C (40°F).
Fill ing - Main Trans mis sion
Note:
Do not open the trans mis sion if there is blow ing
dust or sand in the im me di ate area.
1. Check oil level via sight gage or dip stick
2. Main tain oil level be tween LOW and FULL grad u a tion.
3. Using oil filler can, add de sired quan tity of oil.
4. Re check oil level. (Wipe dip stick clean if in stalled).
5. Re in stall and se cure filler cap and/or dip stick.
6. Vi sually check main trans mis sion and com po nents for ev i dence
of oil leak age and se cu rity.
SCHWEIZER
Model 269C-1 Helicopter
CSP book 2..indd 147 8/4/19 12:54 PM
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