Perkins 1506 — Changing to Perkins ELC
Maintenance · Cooling system
For the Perkins 1506, from the Perkins owner's manual.
Applies to: Perkins 1506A engine, Perkins 1506C engine, Perkins 1506D engine
Before you start
- Incorrect or incomplete flushing of the cooling system can result in damage to copper and other metal components.
Procedure
- Drain the coolant into a suitable container.
- Dispose of the coolant according to local regulations.
- Fill the cooling system with a 33 percent solution of Perkins ELC, operate until thermostat opens, cool and drain.
- Again fill with a 33 percent solution of Perkins ELC, operate until thermostat opens, then cool.
- Drain the cooling system.
- Fill with Perkins Premixed ELC, operate until all coolant valves open, stop and check coolant level when cool.
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.