Caterpillar — Radiator - Clean
Maintenance
From a Caterpillar owner's manual covering: 3126B, 3126B Petroleum Engine, Z2A1-Up. Check it applies to your exact model before use.
Applies to: Caterpillar 3126B
Before you start
- Personal injury can result from air pressure. Wear a protective face shield and protective clothing.
Procedure
- Inspect the radiator for damaged fins, corrosion, dirt, grease, insects, leaves, oil and other debris.
- Clean with pressurized air directed opposite the fan's air flow.
- Hold the nozzle approximately 6 mm (0.25 inch) away from the fins and move it parallel with the tubes.
- Pressurized water may be used to soften mud; clean the core from both sides.
- Use a degreaser and steam to remove oil and grease.
- Wash the core with detergent and hot water; rinse thoroughly.
- Start the engine and accelerate to high idle to help remove debris and dry the core; stop the engine.
- Use a light bulb behind the core to inspect for cleanliness.
- Inspect the fins and repair bent fins with a comb; inspect welds, mounting brackets, air lines, connections, clamps and seals.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Maximum air pressure at the nozzle less than 205 kPa (30 psi)
- Maximum water pressure less than 275 kPa (40 psi)
Full service-parts list: Caterpillar 3126B →
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.