Doosan — Test Radiator Cap and Cooling System
Maintenance
From a Doosan owner's manual covering: G 100, G100-SIIIA, G100SIIIA, G150, G150-SIIIA, G200-SIIIA, G60, G60-SIIIA, G60SIIIA, G80, G80-SIIIA, G80SIIIA. Check it applies to your exact model before use.
Applies to: Doosan G100-SIIIA, Doosan G150-SIIIA, Doosan G200-SIIIA, Doosan G60-SIIIA, Doosan G80-SIIIA, John Deere 4045HFG81 engine, John Deere 4045HFG82 engine, John Deere 6068HFG82 engine
Procedure
- Remove radiator cap and attach to D05104ST tester.
- Pressurize cap to specification; gauge should hold pressure 10 seconds within normal range.
- If gauge does not hold, replace radiator cap.
- Remove cap from gauge, turn 180 degrees and retest to confirm.
- Allow engine to cool, carefully remove radiator cap and fill to normal operating level.
- Connect gauge and adapter to radiator filler neck and pressurize system.
- Check all hose connections, radiator and engine for leaks.
- Correct leaks and retest system pressure.
Tools required
- D05104ST tester Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Radiator cap calibration pressure 100 kPa (1.00 bar) (14.5 psi) for 10 seconds minimum
Full service-parts list: Doosan G100-SIIIA →, Doosan G150-SIIIA →, Doosan G200-SIIIA →, Doosan G60-SIIIA →, Doosan G80-SIIIA →, John Deere 4045HFG81 engine →, John Deere 6068HFG82 engine →
Source: Doosan 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.