Leveling the Mower Deck. Exmark QUEST QZS708GEM50200


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Leveling the Mower Deck. Exmark QUEST QZS708GEM50200 | Manualzz

Maintenance

1.

Sail area of blade

2.

Blade

Figure 66

3.

Curved washer

4.

Blade bolt

Sharpening the Blades

1.

Use a file to sharpen the cutting edge at both ends of the blade (Figure 67). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges.

Figure 67

1.

Sharpen at original angle

2.

Check the balance of the blade by putting it on a blade balancer (Figure 68). If the blade stays in a horizontal position, the blade is balanced and can be used. If the blade is not balanced, file some metal off the end of the sail area only (Figure 68).

Repeat this procedure until the blade is balanced.

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Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting.

2.

Hold the blade end using a rag or thickly-padded glove (or place a wrench on the top sheave nut).

Apply lubricant to the threads of the blade bolt as needed to prevent seizing. Copper based anti-seize is preferable. Grease is an acceptable substitute. Install the washer and blade bolt and washer assembly.

3.

Torque the blade bolt to 35-65 ft-lb (47-88 N-m).

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WARNING

Incorrect installation of the blade or components used to retain the blade cause the blade to come loose and could seriously injure or kill you or bystanders.

Always install the original Exmark blades, washers and blade bolts as shown.

Leveling the Mower Deck

Check to ensure the mower deck is level any time you install the mower or when you see an uneven cut on your lawn.

The mower deck must be checked for bent blades prior to leveling; any bent blades must be removed and replaced. Refer to the Checking for Bent

Blades procedure before continuing.

The mower deck must be leveled side-to-side first then the front to rear slope can be adjusted.

Requirements:

• The machine must be on a level surface.

• All four tires must be properly inflated. Refer to

Checking the Tire Pressure in the Drive System

Maintenance section.

1.

Blade

Figure 68

2.

Balancer

Installing the Blades

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1.

Install the blade onto the spindle shaft (Figure 66).

Side-to-Side Leveling

1.

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

2.

Move the motion control levers out to the neutral lock position, engage parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3.

Set the height-of-cut lever to middle position.

4.

Carefully rotate the blades so that they are all side to side (Figure 69 and Figure 70).

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Maintenance

8.

Loosen the side-locking nut.

9.

Raise or lower the left side of the mower deck by rotating the rear nut. (Figure 71).

Note: Rotate the rear nut clockwise to raise the mower deck; rotate the rear nut counter-clockwise to lower the mower deck.

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Figure 69

Mower Deck with 2 Blades

1.

Blades side to side

2.

Sail area of blade

3.

Outside cutting edges

4.

Measure from the tip of the blade to the flat surface here

1.

Hanger bracket

2.

Side-locking nut

Figure 71

3.

Rear-locking nut g027588

10.

Check the side-to-side adjustments again. Repeat this procedure until the measurements are correct.

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11.

Continue leveling the deck by checking the front-to-rear blade slope; refer to Adjusting the

Front-to-Rear Blade Slope.

Figure 70

Mower Deck with 3 Blades

1.

Blades side to side

2.

Sail area of blade

3.

Outside cutting edges

4.

Measure from the tip of the blade to the flat surface here

5.

Measure between the outside cutting edges and the flat surface (Figure 69 and Figure 70). If both measurements are not within 3/16 inch (5 mm), an adjustment is required; continue with this procedure.

6.

Support the weight of mower deck by placing wood blocks under the edges of the deck.

Note: Avoid placing the supports under any anti-scalp rollers if present on the deck.

7.

Move to the left side of the machine.

Adjusting the Front-to-Rear Blade

Slope

Check the front-to-rear blade level any time you install the mower. If the front of the mower is more than

5/16 inch (7.9 mm) lower than the rear of the mower, 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 out to the neutral lock position, engage parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3.

Set the height-of-cut lever to middle position.

59

Maintenance

Note: Check and adjust the side-to-side blade level if you have not checked the setting; refer to

Side-to-Side Leveling .

4.

Carefully rotate the blades so they are facing front to rear (Figure 72 and Figure 73).

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Figure 72

Mower Deck with 2 Blades

Figure 74

1.

Adjusting rod

2.

Adjusting block

3.

Lock nut

1.

Blades front to rear

2.

Measure from the tip of the blade to the flat surface here g009659

7.

To raise the front of the mower, tighten the adjustment nut. To lower the front of the mower, loosen the adjustment nut.

8.

After adjustment, check the front-to-rear slope again. Continue adjusting the nut until the front blade tip is 1/16-5/16 inch (1.6-7.9 mm) lower than the rear blade tip (Figure 72 and Figure 73).

9.

When the front-to-rear blade slope is correct check the side-to-side level of the mower again; refer to Side-to-Side Leveling .

Figure 73

Mower Deck with 3 Blades

Removing the Mower Deck

1.

Blades front to rear

2.

Outside cutting edges

3.

Measure from the tip of the blade to the flat surface here

Service Interval: As required

1.

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

5.

Measure from the tip of the front blade to the flat surface and the tip of the rear blade to the flat surface (Figure 72 and Figure 73). If the front blade tip is not 1/16-5/16 inch (1.6-7.9 mm) lower than the rear blade tip, adjust the front locknut.

6.

To adjust the front-to-rear blade slope, rotate the adjustment nut in the front of the mower

(Figure 74).

2.

Move the motion control levers out to the neutral lock position, engage the parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3.

Lower the height-of-cut lever to the lowest position.

4.

Remove the hairpin cotter from the front support rod and remove the rod from the deck bracket

(Figure 75). Carefully lower the front of the mower deck to the ground.

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Key Features

  • 708cc Kawasaki engine delivers reliable power and performance
  • 50" cutting deck with 3 blades provides a wide cutting path for increased productivity.
  • Hydrostatic drive system offers precise control and smooth operation
  • Adjustable seat with armrests ensures operator comfort during extended mowing sessions.
  • High-back seat provides lumbar support and reduces operator fatigue.
  • Electric blade engagement for easy and convenient blade activation
  • Large fuel tank allows for extended mowing time without frequent refueling
  • Hour meter tracks operating time for maintenance scheduling and warranty purposes.

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Frequently Answers and Questions

What type of engine does the Exmark QUEST QZS708GEM50200 have?
It has a 708cc Kawasaki engine.
How wide is the cutting deck?
The cutting deck is 50 inches wide.
Does the mower have a hydrostatic drive system?
Yes, it has a hydrostatic drive system for precise control and smooth operation.
Is the seat adjustable?
Yes, the seat is adjustable with armrests for operator comfort.
How long can I mow before refueling?
The large fuel tank allows for extended mowing time without frequent refueling.
How do I activate the blades?
The blades are activated by an electric blade engagement system for easy and convenient operation.
What is the purpose of the hour meter?
The hour meter tracks operating time for maintenance scheduling and warranty purposes.

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