MMD Equipment 185S-5C2 part 2 - Manual (Page 6)

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.
Supply engine oil slowly and carefully because it may over-
flow from oil filler port.
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＞In case of checking and confirming oil level with oil level gauge at operation panel side.
Place the machine on level ground when checking the
oil level.
① Remove the drain plug“1”attached outside the plane, open
a drain valve“2”inside the plane, and discharge engine oil
drain.
② 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”.
[Quantity of oil：approx.1.95gal.(7.4L)]
③ After replenishment is finished, check and confirm that oil
level is between “FULL” and “LOW”.
Unless unit is placed on level, correct oil level will not
be checked and confirmed.
When changing engine oil, drainage takes a longer time if
oil is cold. but it is absolutely necessary to drain oil com-
pletely without fail.
In case of checking and confirming oil level with engine level gauge.
① Remove the drain plug“1”attached outside the plane, open a drain valve“2”inside the plane,
and discharge engine oil drain.
② 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”
③ After supplying oil, pull out the oil level gauge“4”and wipe it out.
④ 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.
Caution in filling or discharging engine oil
Oil level gauge
Max.
limit
Min.
limit
When oil level is within
this zone, it is normal.
2 1
H990432
A100106
When oil level
is within this
zone, it is
normal.
4
A100103
3
[Operation side]
A100106
[Engine side]
2 1