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22 www.honeywellgenerators.com HW7500E/HW7500EL Portable Electrical Generator Owner’s Manual
Engine Oil
Engine Oil Recommendations
Use 4-stroke oil, or equivalent high detergent, premium
quality motor oil certified to meet or exceed U.S. automo-
bile manufacturer's requirements for API Performance
Class SL, SJ, or better.
SAE 10W-30 is recommended for general temperature
use. Refer to Figure 33 for information on other viscosities
that may be used. Other viscosities shown in chart may be
used when average temperature in your area is within
indicated range.
Checking Engine Oil Level
To check engine oil level:
1. Stop generator if engine is running.
2. Place the generator on a flat, level surface.
3. Remove oil fill cap and wipe off dipstick end with
clean cloth.
4. Insert oil fill cap into oil fill hole but do not screw in
(Figure 34).
5. Pull out to read current oil level indicated on dipstick
end.
6. Oil should be filled to the “H” level or somewhere
between the “L” and “H”.
If oil level is at “L” or below, add recommended oil
(see “Adding Engine Oil”). Do not overfill.
7. Reinstall oil fill cap and fully tighten.
Low Oil Protection
When engine oil level approaches an unsafe level, the low
oil protection feature prevents equipment damage by auto-
matically shutting down engine.
When engine shuts down due to low oil level:
• The engine start switch will remain in RUN position.
• You will not be able to start engine until you add
required amount of engine oil.
Adding Engine Oil
1. Stop generator if engine is running.
2. Place the generator on a flat, level surface.
3. Remove oil fill cap.
4. Slowly pour oil into oil fill hole using funnel.
5. Check oil level.
6. Replace oil fill cap and fully tighten.
NOTICE
Engine oil is a major factor affecting engine performance
and service life. Non-detergent and 2-stroke engine oils will
damage engine and are not recommended.
• Be sure to use engine oils specified under “Engine Oil
Recommendations.”
It is very important to maintain proper level of engine oil to
keep engine in good running condition.
• Check engine oil level prior to each use. Refill engine
oil if oil level is too low.
FIGURE 33: Recommended Oil Viscosity
FIGURE 34: Engine Oil Level
5W-30
Synthetic 5W-30
SAE 30, 10W-30
FIGURE 35: Engine Oil Level
Crankcase pressure can cause hot engine oil to
spray out of engine fill hole. Hot engine oil can
cause severe burns.
• ALWAYS stop engine before removing oil fill cap.
FIGURE 36: Oil Fill Cap Removal
WARNING