Perkins 1106C-70TA / 1106D-70TA — Coolant (Commercial Heavy-Duty) - Change
Maintenance · Cooling system
For the Perkins 1106C-70TA / 1106D-70TA, from the Perkins owner's manual.
Applies to: Perkins 1106C-70TA, Perkins 1106D-70TA
Before you start
- Pressurized System: Hot coolant can cause serious burns.
- Allow engine to cool before opening filler cap.
Procedure
- Stop engine and allow to cool. Loosen filler cap slowly to relieve pressure. Remove cap.
- Open drain cock or remove drain plug on engine and radiator. Allow coolant to drain.
- Flush cooling system with clean water to remove debris.
- Close drain cock or install drain plugs on engine and radiator.
- Fill cooling system with clean water. Install cooling system filler cap.
- Start and run engine at low idle until temperature reaches 49 to 66 °C.
- Stop engine and allow to cool. Loosen cap slowly and remove. Drain water. Flush with clean water.
- Close drains. Fill with Commercial Heavy-Duty Coolant. Add Supplemental Coolant Additive. Do not install filler cap.
- Start and run engine at low idle. Increase to high idle for 1 minute. Decrease to low idle. Stop engine.
- Check coolant level. Maintain within 13 mm below bottom of fill pipe.
- Clean filler cap, inspect gasket, pressure test. Install cap.
- Start engine. Inspect cooling system for leaks and correct operating temperature.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Fill rate maximum 5 L/min
- Flush temperature 49 to 66 °C
- Engine coolant capacity 9 L
Full service-parts list: Perkins 1106C-70TA →, Perkins 1106D-70TA →
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.