Unverferth Manufacturing Header Transport 542

WARNING: Falling or lowering header can cause serious injury or death. Do not adjust the unit while the header is above or on transport.

Remove hairpin (92424) and 2’ winch bar (32279) from rest bracket storage position (FIG. 2-51).

Insert the winch bar (32279) into the winch (FIG. 2-52). Apply clockwise pressure to release latch lock and withdraw the strap from the winch.

Reposition the rest brackets. With the strap attached to the back of the rest bracket (FIG. 2-53), re-tighten the strap securely and re-lock the latch.

Using the supplied winch bar, tighten the strap to the strongest possible winch notch to properly secure the rest pads to the lower rest tube.

Put the winch bar (32279) back in dock and secure with the hairpin (92424).

Measure drum wear for oversized condition

Is the drum surface excessively worn or scored?

Does the drum require re-machining?

Enter maximum re-bore diameter after re-machining

Armature Surface Inspection and Re-facing

Is the armature surface scored or worn unevenly?

Ensure all lifting devices and supports are rated for the loads being hoisted.

Verify that no work is done under the machine while it is being hoisted.

Lift the main frame behind the axles using a safe lifting device and jack stands rated at a minimum of 5000 lbs. capacity.

Is the wheel and drum rotating freely?

Remove the adjusting hole cover from the adjusting slot on the bottom of the brake backing plate.

Rotate the star wheel of the adjuster assembly to expand the brake shoes until the wheel is very difficult to turn.

Adjust the arms from front-to-rear

Adjust the middle arm(s) and pin

Ensure bar is adjusted equally from side-to-side

Is there an optional fourth arm present?

Ensure lifting device is rated at a minimum of 1000 lbs. capacity

Position lifting device to support weight of upper bar

Raise upper rest tube using the lifting device

Remove pins in arms to allow repositioning of the upper rest tube

Reinsert pin and lock into position

Did you adjust one pin at a time per side?