Honda FourTrax Rancher TRX420FA5 2019 Owner's Manual page 180

Brakes
Adjustment
RIGHT REAR
(2)
(2) brake lever adjusting nut
(3) brake arm pin
Turn the brake lever adjusting nut (2), located on the brake
operating rod at the brake caliper. Make sure the cutout on the
adjusting nut is properly seated on the brake arm pin (3).
Other Inspections
• Check that the brake lever and brake pedal assemblies are
positioned properly and the securing bolts are tight.
• Make sure that the brake cables, brake arm, spring, P/R lever, and
fasteners are in good condition.
170 Servicing Your Honda
(A)
(B)
(A) increase freeplay
(B) decrease freeplay
(3)