OREC RM983 - Engine Oil Inspection; Replacement

5. 点検・整備・調整
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③ For oiling, after installing the drain plug (drain plug),
remove the mission plug at the rear of the mission case and
add 1.0 liter of mission oil (# 90). After Oiling, be sure to
tighten the mission plug so that there is no oil leakage.
Be careful not to overtighten the mission plug. After the
gasket (O-ring) comes into contact with the mounting surface,
tighten it further 3/4 turn.
5.1.2 Engine oil inspection / replacement
◎ Inspection / replenishment ... Strictly observe the amount of Oil.
① Check the quality and quantity of engine oil every day
before starting work with the oil gauge attached to Oil
Plug.
② Always keep engine oil up to the upper limit of the level
gauge.
◎ Exchange…
※ Replace it 5 hours for the first time, every 50 hours after
that (with oil filter), or every season, whichever comes first.
However, in heavy load work conditions or continuous
work in a high temperature environment, it is
recommended to replace the engine oil (about 25
hours) and oil filter (about 50 hours).
① Prepare a suitable container to receive the drain oil,
loosen the oil inlet plug, and then remove the drain plug
(oil drain plug) at the rear left of the engine using the tool
M12 (width 17).
② After draining the oil, tighten the drain plug as before and
remove the oil inlet plug.
③ First refuel with 1 liter of oil and run at low speed for about 30 seconds. Stop the engine,
wait for about 30 seconds, and slowly replenish the oil to the "FULL" position on the level
gauge.
④ Tighten the Oil inlet plug firmly so that the oil does not seep out after lubricating the engine
oil.
Too much engine oil can cause engine malfunction. If you add too much, remove it, and keep
the proper amount.
Drain Plug
Oil Plug
OIL Gauge