Honda FourTrax Rubicon TRX520FA5 2020 Owner's Manual page 162

Front Final Gear Oil
1. Park your ATV on a firm, level surface.
2. Place an oil drain pan under the oil drain bolt (1).
3. Remove the oil fill cap (2), O-ring (3), drain bolt and sealing
washer (4).
4. After the oil has completely drained, reinstall the drain bolt with
a new sealing washer and tighten it to the specified torque:
9 lbf·ft (12 N·m, 1.2 kgf·m)
5. Pour the drained oil into a suitable container and dispose of it in
an approved manner (page 214).
NOTICE
Improper disposal of drained fluids is harmful to the environment.
6. Fill the front final gear case with the recommended oil.
11.0 US oz (325 cm
Make sure the oil level is at the lower edge of the oil fill inspection
hole (5).
7. Coat a new O-ring with grease and install it into the fill cap
groove and tighten it to the specified torque:
9 lbf·ft (12 N·m, 1.2 kgf·m)
FRONT
(4)
(1) oil drain bolt
(2) oil fill cap
(3) O-ring
152 Servicing Your Honda
3 )
(5)
(1)
(4) sealing washer
(5) oil fill inspection hole
(2)
(3)