MMD Equipment 400S-6B1 - Manual (Page 35)

5. Periodic Inspection/Maintenance
5-5
5.6 Maintenance
5.6.1 Change Engine Oil
At 50 hours for the first change and at every 500 hours thereafter
Caution in filling or discharging engine oil
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.
H990432
Viscosity of engine oil greatly affects startability, performance, oil consumption of the engine, as well
as wear of the moving parts.
Choose appropriate oil based upon the table below according to the outside air temperature.
Relation between viscosity (SAE) and temperature
SAE Viscosity number Temperature
10W −
22°F to 50°F (−30℃ to 10℃)
30
14°F to 104°F (−10℃ to 40℃)
40
32°F to 122°F ( 0℃ to 50℃)
15W/40
− 4° F to 104°F (−20℃ to 40℃)
Be sure to use CD class engine oil or superior class. (Using engine oil with poor quality may shorten
the life of the engine).
(Procedure)
① Loosen the drain valve“1”located inside of the frame to
drain out the used oil.
② When the oil is completely drained, close the drain
valve“1” firmly and refill new engine oil through the
engine oil filler“2”.
2
How to choose engine oil
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1