Handling, Servicing & Maint.
Pilot's Flight Manual
Reissued: 16 Jan 2019 7-5
4. No smok ing or open flame within 100 feet of the he li cop ter and
defueling equip ment.
5. Af ter drain ing fuel sys tem, en sure that all valves are in nor mal
op er at ing po si tion and se cure.
7-4. SER VICING ENGINE OIL SYS TEM
The en gine has a wet sump lu bri ca tion sys tem lo cated on the bot tom
of the en gine. Oil quan tity is checked by us ing the dip stick lo cated
in the left front cor ner of the en gine sump. The dip stick is grad u ated
in 2-quart in cre ments and has an O-ring to pre vent oil leak age. Oil is
added to the en gine through the dip stick open ing by us ing an au to -
mo tive-type filler spout with a flex i ble hose.
Note:
Check en gine oil level be fore the first flight of the
day.
Fre quent oil changes are highly de sir able. More fre quent changes
are de sir able when poor en vi ron men tal con di tions (i.e., dust and
high OAT) are pres ent. Use an ashless dis per sant oil at all times af -
ter break-in as rec om mended by Lycoming Ser vice In struc tion No.
1014 (lat est re vi sion). Re fer to the lat est re vi sion of Lycoming Ser -
vice Bul le tin No. 480 for oil and oil fil ter change in ter vals and oil
screen clean ing in ter val rec om men da tions.
Fill ing - En gine Oil Sys tem
1. Vi sually check oil level on dip stick. If oil level is at 6-quart
grad u a tion or be low, add no less than 1 quart of oil.
2. Using clean oil filler can, add de sired quan tity of oil.
3. Wipe dip stick clean and re check oil level.
4. In stall dip stick in en gine re cep ta cle and check for se cu rity.
5. Vi sually check oil sys tem com po nents for ev i dence of leak age.
Draining - En gine Oil Sys tem
1. Place suit able con tainer un der the en gine oil sump; re move drain
plug.
2. Al low suf fi cient time for all oil to drain from sump.
3. Clean en gine fil ter screens or change filter.
SCHWEIZER
Model 269C-1 Helicopter
CSP book 2..indd 143 8/4/19 12:54 PM
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