Caterpillar C27 / C32 — Cooling System Coolant (ELC) - Change
Maintenance
For the Caterpillar C27 / C32, from the Caterpillar owner's manual.
Applies to: Caterpillar C32
Before you start
- Hot coolant can cause serious burns.
- Clean water only is needed when ELC is drained and replaced.
Procedure
- Stop the engine and allow the engine to cool. Loosen the filler cap slowly to relieve pressure; remove the cap.
- Open the drain valve or remove drain plugs; allow the coolant to drain.
- Flush the cooling system with clean water in order to remove any debris.
- Close the drain valve; clean and install the drain plugs.
- Fill the cooling system with clean water; install the filler cap.
- Start and run the engine at low idle until temperature reaches 49 to 66 °C (120 to 150 °F).
- Stop the engine and allow to cool; drain, flush with clean water and close the drain valve.
- Fill the cooling system with Extended Life Coolant (ELC); refer to Refill Capacities and Recommendations.
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
- Fill no faster than 19 L (5 US gal) per minute
- 49 to 66 °C (120 to 150 °F) flush temperature
Full service-parts list: Caterpillar C32 →
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.