John Deere 4045 / 6068 — Daily Prestarting Checks
Maintenance · Engine
For the John Deere 4045 / 6068, from the John Deere operator's manual.
Applies to: John Deere 4045, John Deere 6068
Before you start
- Only remove coolant filler cap when cool enough to touch with bare hands.
Procedure
- Check engine oil level on dipstick; add seasonal viscosity grade oil as required.
- Check coolant level when engine is cold; add proper coolant solution if low.
- Check primary and final fuel filters for water or debris; drain as needed.
- Squeeze air cleaner dust unloader valve to clear dust buildup.
- Check air intake restriction indicator gauge.
- Inspect engine compartment for oil or coolant leaks, worn belts, loose connections.
- Check coolant pump for coolant leaks.
Specs & values
- Coolant level at bottom of surge tank filler neck or radiator filler neck
- Maximum air intake restriction 6.25 kPa (25 in. H2O)
Full service-parts list: John Deere 4045 →, John Deere 6068 →
Source: John Deere operator'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.