John Deere Sprayer 4940

Activate tread adjust until axle tubes are fully extended

Remove cap screws (A) and coat with anti-seize compound

Install and tighten cap screws (A) to specification

Repeat tightening until all three cap screws torques are maintained

Loosen cap screws (A) 1/6 of a turn

Tighten jam nuts (B) to specification

Adjust the tread adjust sensors

Lubricate steering cylinder tie rod ends

Solution tank straps tightness checked

Solution tank straps tightened if loose

Boom lift arm pivots lubricated

Replace air compressor air dryer cartridge

Relieve air system pressure by opening valve (A)

Remove cap screws (A), nuts, and clamps that secure alternator harness

Remove cap screws (B) and tilt air dryer and mounting bracket assembly (C) until dryer cartridge can be accessed

Using a strap wrench, turn the desiccant cartridge (A) counterclockwise, remove and discard

Remove and discard O-ring (B) from adapter plate stud

Clean top surface of adapter plate (D) and threaded stud

Apply a light coat of grease (supplied with new cartridge) to O-ring. Install O-ring on adapter plate

1. Operate engine approximately 5 minutes to warm oil, then stop engine.

2. Remove engine fill cap (at dipstick) (A).

3. Put a large catch pan below engine drain valve and loosen valve handle (B) of drain valve to drain oil.

4. Using a 32 mm wrench, unscrew oil filter cover (C) and lift as shown to allow oil filter (D) to drain into crankcase.

5. Remove filter cover with oil filter attached.

6. While holding cover, strike filter against solid surface to remove. Discard used filter.

7. Remove old O-ring and replace with new O-ring provided with new filter element.

8. Press new filter into cover until it snaps into place.

2. Check solution tank straps for tightness.

3. If loose, tighten until straps are snug and then tum nuts (A) an additional two turs.

1. Activate tread adjust until axle tubes are fully extended. 2. Remove cap screws (A) and coat with anti-selze compound. 3. Install and tighten cap screws (A) to specification. This forces inner axle tube to opposite side of outer axle tube. 4. Repeat tightening until all three cap screws torques are maintained. 5. Loosen cap screws (A) 1/6 of a tum. 6. Tighten jam nuts (B) to specification. Adjust tread adjust sensor

1. Ensure axle shims are properly adjusted. (See Adjust Tread Adjust Shims-250 Hours in this section.)

2. Remove tread adjust sensor (A) and shims (B).