Caterpillar C27 / C32 — Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Maintenance
For the Caterpillar C27 / C32, from the Caterpillar owner's manual.
Applies to: Caterpillar C32
Before you start
- Cooling system coolant additive contains alkali. Avoid contact with skin and eyes.
- Do not exceed the recommended amount of supplemental coolant additive concentration.
Procedure
- Test the concentration of the SCA with the 8T-5296 Coolant Conditioner Test Kit, or with a 298-5311 Coolant Nitrite Test Kit for SCA.
- Remove the cooling system filler cap slowly.
- If necessary, drain some coolant in order to allow space for the addition of the SCA.
- Add the proper amount of SCA; refer to Refill Capacities and Recommendations and SEBU6251.
- Clean the cooling system filler cap. Install the cooling system filler cap.
Tools required
- 8T-5296 Coolant Conditioner Test Kit Amazon
- 298-5311 Coolant Nitrite Test Kit for SCA Amazon
- 294-7420 refill ampoules Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Do not exceed 6 percent SCA concentration (conventional coolant)
- Do not exceed 8 percent SCA concentration (water and SCA systems)
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.