Cessna 150K - Daily; First 25 Hours; 50 Hours

o DAILY
3 FUE L TANK FILLER
Service after each flight. Keep full to retard condensation. Refer to paragraph 2 -18 for
details.
4 FUE L TANK SUMP DRAINS
If quick-drain valves are installed, drain off any water and sediment before first flight
of the day.
6 PITOT AND STATIC PORTS
Check for obstructions before first flight of the day.
10 FUE L STRAINER
Drain off any water and sediment before the first flight of the day. Refer to paragraph
2 -19 for details.
13 INDUCTION AIR FILTER
Inspect and service under dusty conditions. Refer to paragraph 2 -22 for details.
16 OIL DIPSTICK
18
15, 17
Check oil on preflight. Add oil as necessary. Refer to paragraph 2-21 for details.
OIL FILLER CAP:
Whenever oil is added, check that filler cap is tight and oil filler door is secure.
o FmST 25 HOURS
ENGINE OIL SYSTEM
Refill with straight mineral oil, non-detergent, and use until a total of 50 hours have
accumulated or oil consumption has stabilized, then change to ashless dispersant oil.
o 50HOURS
13 INDUCTION AIR FILTER
Clean filter per paragraph 2-22. Replace as required.
14 BATTERY
15, 17
12
7
Check electrolyte level and clean battery compartment each 50
hours or each 30 days.
ENGINE OIL SYSTEM
Change oil each 50 hours if engine is NOT equipped with external oil filter;
if equipped with external oil filter, change filter element each 50 hours and
oil at each 100 hours, or every 6 months.
SHIMMY DAMPENER
Check fluid level and refill as required with hydraulic fluid. Refer to paragraph 2 -27
for details.
TIRES
Maintain correct tire inflation as listed in figure 1-1. Also refer to paragraph
2-25 for details.
Figure 2-4. Servicing (Sheet 2 of 3)
Change 3 2-11
I