Maintenance

Adjustments

Adjusting the Blower Drive Belt Position

1.Read the operator’s manual for the UltraVac and mower before performing this adjustment. Make sure that you understand the controls, their locations their functions and safety requirements.

2.Ensure the blower, belt cover, tubes and hopper are in good condition, properly attached and latched.

3.Run the unit with the PTO and the blower engaged for two minutes.

4.Disengage the PTO, stop the engine and remove the key.

5.Remove the belt cover and check to make sure that the belt is riding near the center of the flat idler on the idler arm. If the belt is not riding near the center of the idler, remove the blower, and bend the idler arm slightly.

6.Reinstall the blower and belt cover and perform steps 3-5again to verify belt position.

Adjusting the Door Linkage

LZUVQD7 Units:

1.If the door does not close properly adjust the rods as shown in Figure 25.

Shorten the rod to increase over center force.

Lengthen the rod to reduce.

Adjust the rods on both sides so they are approximately equal.

Figure 25

LZUVQD7 Units

1. Rod

3. 1/4 inch (6.35 mm) ± 1/8 inch (3.2 mm)

2.Stop

2.If the left and right stops do not make contact with the door link when it is in the extended position:

Adjust the position of the stops (see Figure 25) so that the door link contacts them when the upper tube of the door frame is within 1/4 inch (6.35 mm) ± 1/8 (3.2 mm) from the lower lip of the hopper.

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Exmark 850, 00 & Higher manual Adjusting the Blower Drive Belt Position, Adjusting the Door Linkage, LZUVQD7 Units

00 & Higher, 850 specifications

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