John Deere Tractor 7520

Change PowrQuad Plus Transmission/Hydraulic Oil Filter

Coat sealing rings of new filter elements with grease or oil

Use original John Deere filter elements only!

Check Seat Belt for Signs of Wear

Turn cab heater control to fully open position

Loosen and remove filler cap after engine and coolant has cooled completely

Pressurize system to 50 to 60 kPa (7 to 8.7 psi)

Inspect system for leaks using suitable radiator tester

Turn connect/disconnect control valve counterclockwise approximately 1/4 turn to open

Open radiator drain valve and let coolant flow until system is empty

Remove thermostat housing (E) and thermostat

Test thermostat to verify it opens within specified temperature range

Install housing without thermostat

Fan Belt Inspection/Replacement

Change Primary and Secondary Engine Air Filters

Steps to change MFWD Axle Housing Oil

Steps to change MFWD Wheel Hub Oil

Change PowrQuad Transmission/Hydraulic System Oil

Steps to change PowrQuad Transmission/Hydraulic System Oil

Check Transmission/Hydraulic Oil Level

Lower rear hitch and front-mounted implements (if equipped).

For 7220 and 7320 Tractors: Unscrew dipstick (A), remove it and wipe it clean.

Screw-in dipstick fully, remove it and check oil level.

Oil level should be between marks on the dipstick.