HSB Generator Preventative Maintenance: Switch, Low Oil Shut-Down 0.6 Bar
This bulletin covers the following models: All 12.5 and 14kW Home Standby Generators. (Maintenance of part no. 100831 Low Oil Shut-Down Switch 0.6 Bar.)
Home standby generators installed in high humidity regions have experienced low oil faults and starting issues due to corrosion of the lowo oil shut-down switch. In some regions, the combination of humidity and salt can penetrate the sensor tab vent, and the plastic-metal seam of the low oil shut-down switch causing corrosion to the pressure spring inside of the switch.
- Locate the low oil shut-down switch.
- Location is to the right of the oil filter next to the oil cooler hoses.
- Clean the low oil shut-down switch.
- Remove the yellow wire from the low oil shut-down switch sensor tab.
- Use soapy water and a paint brush to clean all the plastic and metal surfaces.
- Work the brush into the plastic/metal seam to remove all dust and dirt.
- Rinse off the low oil shut-down switch.
- Use a clean spray bottle full of clean water to rinse off the low oil shut-down switch.
- Use the fine spray setting to spray the plastic/metal seam area.
- Dry the low oil shut-down switch.
- Using a clean cloth, dry off the low oil shut-down switch.
- Use compressed air or a hair dryer to blow (if applicable).
- Apply grease to the low oil shut-down switch.
- Use a small brush.
- Work the grease into the plastic/metal seam of the switch.
- Brush the entire switch and sensor tab with grease.
- Reconnect the yellow wire to the low oil shut-down sensor tab.
- Non-conducting grease
- Dielectric grease.
View and download the PDF version here.