John Deere 6068HF475 — Pressure Testing Cooling System
Maintenance
For the John Deere 6068HF475, from the John Deere owner's manual.
Applies to: PowerTech 6068HF475
Before you start
- Only remove filler cap when cool enough to touch with bare hands.
Procedure
- Remove radiator cap and attach to D05104ST Tester.
- Pressurize cap; gauge should hold 70 kPa (10 psi) for 10 seconds.
- Remove cap, turn 180 degrees, and retest.
- Allow engine to cool; remove radiator cap; fill to normal level.
- Connect gauge and adapter to radiator filler neck; pressurize.
- Check hose connections, radiator, and engine for leaks.
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 holding pressure 70 kPa (0.7 bar) (10 psi)
Full service-parts list: PowerTech 6068HF475 →
Source: John Deere 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.