Cummins/Onan 80MDKAL11454B — Returning the Genset to Service
Maintenance · generator set
For the Cummins/Onan 80MDKAL11454B, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan MDKAL, Kubota D1005 engine
Before you start
- Battery electrolyte can cause severe eye damage and burns to the skin; wear goggles, rubber gloves and a protective apron.
- DO NOT OVERCHARGE the battery.
Procedure
- Remove plug from the exhaust outlet, and open the sea cock.
- Check tag on oil base and verify that oil viscosity is still correct for existing ambient temperature.
- Clean and check the battery; measure electrolyte specific gravity with a hydrometer (1.260 at 80 F [27 C]) and verify proper level; charge if low.
- Prime the fuel system.
- Connect the starting battery, negative (-) cable last.
- Remove all loads before starting the genset.
- After starting, run the generator set at no load for roughly 30 seconds, then apply a load of at least 50 percent rated capacity.
- Check all gauges for normal readings.
Tools required
- battery hydrometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Specific gravity 1.260 at 80 F (27 C)
- Run at no load roughly 30 seconds, then apply load of at least 50 percent rated capacity
Full service-parts list: Cummins/Onan MDKAL →, Kubota D1005 engine →
Source: Cummins/Onan operator's 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.