Perkins — How to fill the cooling system
Maintenance
From a Perkins owner's manual covering: 4000 Series, 4006-23 TAG1A, 4006-23 TAG2A, 4006-23 TAG3A. Check it applies to your exact model before use.
Applies to: Perkins 4006-23 TAG1A, Perkins 4006-23 TAG2A, Perkins 4006-23 TAG3A
Before you start
- Do not remove the filler cap while the engine is still hot and under pressure.
- A solution of either water and anti-freeze or water and corrosion preventative must be used; plain drinking water is not recommended.
Procedure
- Check that all the coolant system drain plugs are fitted correctly.
- Rotate the radiator cap (A1) anti-clockwise and remove it.
- Fill the system with the correct coolant.
- Fit the radiator cap (A1) and run the engine off load until the thermostat opens.
- Allow the engine to cool; remove the radiator cap (A1) and top up to 25 mm (1") below the top of the filter neck.
- Fit the radiator cap.
Specs & values
- Top up to 25 mm (1") below top of filler neck
Source: Perkins owner'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.