John Deere Excavator 35G

Replace pilot system oil filter

Loosen hydraulic tank filler cap to release pressure

Remove access panel to access pilot system oil filter

Turn filter case counterclockwise to remove from filter head

Apply clean oil to new O-ring and install in filter head

Check and adjust fan belt tension

Loosen cap screws (4) and remove covers (5) to open checking port

Check belt regularly for wear. Replace if necessary

Check belt tension with belt tension gauge at midway between alternator (2) and fan pulley (1)

If fan belt deflection (3) is not within specification, loosen adjusting cap screw (6) and mounting cap screw (7)

Move alternator until tension is correct

Tighten cap screws and install covers

Engine shut off and oil drained into oil pan for 10 minutes.

Oil level in the cross-hatch area before engine start.

Oil level above the ADD mark after engine run.

Arm cylinder fully retracted and bucket cylinder fully extended. Bucket and blade lowered to ground.

Drain and refill hydraulic tank oil

Machine parked on a level surface with arm cylinder fully retracted and bucket cylinder fully extended?

Bucket and blade lowered to ground?

Cap (1) slowly loosened to release pressure and removed?

Hydraulic tank cover (4) removed?

Oil drained using a suction pump?

Drain valve (3) slowly loosened and oil drained into a container?

Park machine on a level surface with arm cylinder fully retracted and bucket cylinder fully extended. Lower bucket and blade to ground.

Slowly loosen hydraulic tank filler cap (7) to release hydraulic pressure. Remove cap.

Loosen cap screws (1) to remove filter cover (2) and O-ring (3).

Hold down filter cover against light spring load when removing cap screws.

Remove spring (4), valve (5), and filter element (6).

Install new filter element, valve, and spring.

Fill new filter with oil. See Hydraulic Oil. (Section 3-1.)