Changing Transmission/Hydraulic Oil (Tractors NOT Equipped with AutoPowr)

6520 and 6620 tractors

1. Start engine and operate several hydraulic functions to heat up oil.

2. Park tractor so that it is level. Lower draft links and front-mounted implements.

3. Stop the engine and remove the key.

4. Apply handbrake (transmission in neutral).

5. Remove drain screws (A).

6. Replace transmission/hydraulic oil filter elements (B).

7. Remove drain screw (C), pull out intake screen and wash in fuel.

8. Before refilling with fresh oil, reinstall intake screen, replace seals and tighten drain screws to 50 N·m (35 lb-ft).

9. Add transmission/hydraulic oil to the transmission case.

PowrQuad Plus transmission... 52 liters (13.7 U.S. gal.)
AutoQuad II transmission... 52 liters (13.7 U.S. gal.)
Extra with additional oil reservoir... 12 liters (3.2 U.S. gal.)

 

Run engine briefly and operate hydraulic functions. Shut off the engine.

Wait for between 10 and 15 minutes before checking the oil level. It should be between the marks on the dipstick. If not, correct oil level.

LX006244
LX1027109


A-Drain screws
B-Transmission/hydraulic oil filters
C-Screw plug
D-Additional oil reservoir

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Additional work on tractors with hydraulic trailer brakes

1. Disconnect hydraulic line (A) from fitting (B).

2. Loosen fitting (B) and turn it to one side.

3. Remove screen (C) from hydraulic line (A) and wash it in fuel.

4. Insert screen (C) and attach hydraulic line (A).

5. Tighten hydraulic line (A) and fitting (B).

LX011695
LX011696

Inserting the screen

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