Hayter Mowers RZT420H manual Adjusting the Front-to-Rear Blade Slope

5.Carefully rotate the blade(s) side to side (Figure 50). If both measurements are not within 3/16 inch

(5 mm), an adjustment is required; continue with this procedure.

Figure 50

1. Blades side to side 3. Measure here

2.Outside cutting edges

6.Measure between the outside cutting edges and the flat surface (Figure 50). If both measurements are not within 3/16 inch (5 mm), an adjustment is required; continue with this procedure.

7.Move to the left side of the machine. Loosen, but do not remove, the rear locking nut on the hanger bracket (Figure 51).

8.Loosen the side locking nut on the hanger bracket just enough to allow the eccentric plate to be adjusted (Figure 51). Use a 3/8 inch drive extension on a socket wrench to manipulate the eccentric plate. Use the wrench to reposition the height of the cutter deck and adjust to the desired height.

9.Stop the deck at the adjusted position and tighten the side locking nut on the hanger bracket to hold the new position (Figure 51). Tighten the rear locking nut on the hanger bracket.

10.Continue leveling the deck by checking the front-to-rear blade slope; refer to Adjusting the Front-to-Rear Blade Slope.

Figure 51

1.	Hanger bracket	4.	Eccentric adjustment plate
2.	Rear locking nut	5.	Socket wrench hole
3.	Side locking nut	6.	Socket wrench with 3/8
			inch extension

Adjusting the Front-to-Rear Blade Slope

Check the front-to-rear blade level any time you install the cutter deck. If the front of the cutter deck is more than 5/16 inch (7.9 mm) lower than the rear of the cutter deck, adjust the blade level using the following instructions:

1.Park the machine on a level surface and disengage the blade control switch.

2.Move the motion control levers outward to the park position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3.Check the air pressure of all four tyres. If needed, adjust to the recommended inflation; refer to Checking the Tyre Pressure in the Drive System Maintenance section.

4.Check and adjust the side-to-side blade level if you have not checked the setting; refer to Leveling the Cutter Deck from Side-to-Side.

5.Set the height-of-cut at position D [3 inch (76 mm)] and carefully rotate the blades so they are facing front to rear (Figure 52).

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