Adjust Gauge Wheels

IMPORTANT:

A68170-UN-14JUL10

A68178-UN-14JUL10

A - Adjusting Wrench

When assembled, gauge wheels and disk blades must be free to turn with minimal resistance.

To prevent buildup of soil or residue between gauge wheels and opener blades, adjust gauge wheels.

Rotate gauge wheel. Verify that the wheel is lightly touching disk or less than the maximum specification away from blades at their closest approach.

Item	Measurement	Specification
Maximum Gauge Wheel to Opener Blade Clearance	Distance	1.5 mm (1/16 in.)

To adjust gauge wheel, hold cap screw with one wrench and turn adjustment nut with another wrench (A). To move wheel closer to blade, turn nut counterclockwise. To move wheel away from blade, turn nut clockwise.

Tighten wheel arm cap screw to specification.

Item	Measurement	Specification
Gauge Wheel Arm Cap Screw	Torque	271 N·m (200 lb.-ft.)