MMD Equipment 185S-6C1 - Manual (Page 43)

5. Periodic Inspection/Maintenance
5-6
5.5 Maintenance Items
5.5.1 Change engine oil
[At 50 hours for the first change and at every 250 hours thereafter]
After stopping the engine, wait for 10 to 20 minutes until the
engine oil cools off. Then check the level of the engine oil, or
refill or drain the oil.
Engine oil is very hot and highly pressurized during or just after
the operation. Hot oil could blow out of the tank and can cause
scalding.
＜ Procedure＞
① Remove the drain plug“1”attached outside the plane, open
a drain valve“2”inside the plane, and discharge engine oil
drain.
① When the oil is completely drained, close the drain plug
“
1”and drain valve“2” firmly and refill new engine oil
through the engine oil filler “3”.
② After supplying oil, pull out the oil level gauge“4” and
wipe it out.
③ Then, re-insert the oil level gauge“4” fully and pull it
out again. If the dipstick shows the oil level between
Upper limit and Lower limit, it is normal.
5.5.2 Change engine oil filter
[At 50 hours for the first change and at every 500 hours thereafter]
＜ Procedure＞
① Remove the cartridge“1”, using a filter wrench.
② Screw in the new cartridge“2”with the packing coated
slightly with oil. (See 5.4)
③ After the packing touches the sealing face, further tighten it
by turning it 3/4 time with the filter wrench.
④ After installing the oil filter, check it for any leak during
operation.
H000049
1
2
Caution in filling or discharging engine oil
A070186-1
Oil level gauge
Upper
limit
Lower
limit
When oil level is within
this zone, it is normal.
2 1
H99043
4 3
A070306