Hercules — 100 Hour or 3000 Mile Maintenance
Maintenance · engine
From a Hercules service manual covering: D-1500, D-1700, D-2000, D-2300, D-3400, De3000. Check it applies to your exact model before use.
Applies to: Hercules D Series engine
Procedure
- Repeat daily and 50-hour maintenance.
- Change oil filter; add 1 extra quart of engine oil.
- Clean fuel filters; replace elements or spin-on filter.
- Lubricate starting motor if oil cup provided.
- Lubricate alternator with 3 to 5 drops of medium grade engine oil.
Source: Hercules service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.