Caterpillar 3044C — Cooling System Coolant (DEAC) - Change
Maintenance
For the Caterpillar 3044C, from the Caterpillar owner's manual.
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Before you start
- Pressurized System: Hot coolant can cause serious burns.
Procedure
- Drain: stop engine, loosen filler cap, remove cap. Open drain cock or remove drain plug on engine and radiator. Allow coolant to drain.
- Flush: flush with clean water. Close drain. Fill with mixture of clean water and Caterpillar Fast Acting Cooling System Cleaner (0.5 L per 15 L capacity). Install cap.
- Run engine at low idle for at least 30 minutes. Coolant temperature at least 82 °C.
- Stop engine, drain, flush with clean water.
- Fill: close drain. Fill with coolant/antifreeze. Do not install cap.
- Start and run engine at low idle then high idle for one minute to purge air. Stop engine.
- Check coolant level within 13 mm below bottom of filler pipe.
- Inspect filler cap gasket; pressure test with 9S-8140 if not damaged. Install cap.
- Start engine and inspect for leaks.
Tools required
- 9S-8140 Pressurizing Pump Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 0.5 L cleaner per 15 L capacity
- 82 °C
- 13 mm
- 19 L/min fill rate
Source: Caterpillar 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.