Caterpillar C175 / C280 — Changing to Cat ELC
Maintenance · Cooling system
For the Caterpillar C175 / C280, from the Caterpillar manual.
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Before you start
- Do not leave an empty SCA maintenance element on a system that is filled with Cat ELC.
- Improper or incomplete rinsing 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.
- If equipped, remove the empty SCA maintenance element and element base; plug or bypass coolant lines.
- Flush the system with clean water in order to remove any debris.
- Use Cat Quick Flush Cooling System Cleaner with a 6-10% concentration of cleaner in water.
- Drain the cleaner into a suitable container and flush the cooling system with clean water.
- In systems with heavy deposits, disconnect hoses and clean deposits and debris from hoses and fittings.
- Fill the cooling system with clean water and operate engine until warmed to 49 C to 66 C (120 F to 151 F).
- Drain the cooling system into a suitable container and flush with clean water.
- Repeat Steps 8 and 9 until the system is completely clean.
- Fill the cooling system with the Cat ELC.
- Operate the engine until warmed; inspect for leaks and tighten hose clamps and connections.
- Attach the Special Publication PMEP5027 Label to the cooling system filler to indicate use of Cat ELC.
Tools required
- Suitable containers Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 6-10% concentration of cleaner in water
Source: Caterpillar 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.