Finish Grader

Parts needed for this procedure:

Note: Determine the left and right sides of the machine from the normal operating position.

1. Remove any attachment from the rear of the machine.

2. Back the traction unit into position in front of the attachment adapter. Lower the traction unit adapter.

   Note: Ensure that the locking lever is pivoted to the left (unlocked position) as viewed from the rear of the machine (Figure 3).

   

   Figure 3

   1. Locking lever (unlocked position)
   2. Attachment adapter

3. Raise the traction unit adapter into the attachment adapter.

4. Pivot the locking lever to the right (locked position) as viewed from the rear of the machine so that it is standing straight up to lock the adapters together.

1. With the attachment mounted and secured on the traction unit, raise the attachment.

2. Measure the gap between the top washer and the spacer in the link assembly on the attachment adapter as shown in Figure 4.

   Important: The gap between the washer and the shoulder should be 0.060 to 0.080 inch (1.5 to 2.0 mm).

   

   Figure 4

   1. Adjustment nut
   2. Jam nut
   3. 0.060 to 0.080 inch (1.5 to 2.0 mm) clearance

Before operating the finish grader, review the following materials and save them in an appropriate place:

• Parts Catalog

• Installation Instructions

• Raise or lower the finish grader to control the grading or scarifying depth.

• When grading, rotate the scarifier to the upper position and secure each end with a clevis pin and hairpin (Figure 5).

  

  Figure 5

  1. Scarifier
  2. Clevis pin
  3. Grading position (upper)
  4. Hairpin
  5. Scarifying position (lower)

• When scarifying, rotate the scarifier to the lower position and secure each end with a clevis pin and hairpin (Figure 5).

• The scarifier aggressiveness can be changed by adjusted the length of the springs (Figure 8). Lengthening the springs will make the scarifier less aggressive. Shortening the springs will make the scarifier more aggressive

• For final grading/leveling, an Adjustable Orifice Kit (Part No. 112-1433) can be obtained to regulate the raise/lower speeds.

When the grading operation is completed, clean the machine thoroughly. Since this machine is used primarily in extremely abrasive conditions, the material should be flushed off after each use. If the machine is cleaned frequently, it can be cleaned with a stream of water from a hose with the nozzle removed.

Important: Do not use pressurized water to clean the machine; a high pressure stream could drive sand or other material into wear areas where it could act as a grinding compound.

Note: If the attachment adapter becomes stuck to the traction unit adapter, insert a prybar/screwdriver into the pry slot to disengage the parts.

Figure 6

1. Pry slot

If the locking lever on the attachment adapter does not pivot freely and easily, apply a light coat of grease to the area shown in Figure 7.

Figure 7

The springs and actuating rods are adjusted at the factory. However, if new parts are installed or the springs are removed for any reason, the spring length should be adjusted to 5.24 inches (133 mm) as shown in Figure 8.

Figure 8

To level the blade in relation to the traction unit, place the unit on a level surface (such as a concrete driveway), and slightly vary the rear tire pressure as required.

The scraper blade (Figure 9) can be reversed for a second wear surface after the original edge has worn beyond the lower edge of the finish grader box that it is attached to.

Figure 9