John Deere 1450 CWS CIS and 1550 CWS CIS Operator's Manual
![John Deere 1450 CWS CIS and 1550 CWS CIS manual cover](/images/c8fae5ea43cbee796a308209/thumbs/thumb175x175.webp)
For optimal performance, use John Deere Plus-50 II engine oil, which is specially formulated for heavy-duty engines.
The air filter should be inspected every 100 hours and replaced as needed to ensure efficient engine performance.
To calibrate the header height, enter the control panel, select the calibration menu, and follow the on-screen instructions. Ensure the combine is on a flat surface.
Start by checking the rotor and concave settings, ensure the sieves are properly adjusted, and inspect the grain tank for blockages.
Perform daily checks of fluid levels and general inspections, and follow the service manual for comprehensive maintenance every 250 hours.
Locate the concave adjustment lever and turn it to adjust the clearance. Refer to the operator's manual for specific crop settings.
Check the battery connections, ensure there is fuel in the tank, and inspect the starter motor and ignition system for any faults.
The hydraulic system should be checked every 200 hours, and the hydraulic oil and filters should be replaced every 600 hours.
Signs include unusual noises, decreased threshing efficiency, and visible damage or wear on the concaves and rasp bars.
Regular maintenance, proper tire inflation, and adjusting the engine speed and load to match field conditions can help improve fuel efficiency.