GrandStand® Multi Force Mower

• Read the Operator's Manual and other training material. If the operator(s) or mechanic(s) cannot read the manual language, it is the owner's responsibility to explain this material to them.

• Become familiar with the safe operation of the equipment, operator controls, and safety signs.

• All operators and mechanics should be trained. The owner is responsible for training the users.

• Never let children or untrained people operate or service the equipment. Local regulations may restrict the age of the operator.

• The owner/user can prevent and is responsible for accidents or injuries occurring to himself or herself, other people, or damage to property.

• Evaluate the terrain to determine what accessories and attachments you need to properly and safely perform the job. Use only accessories and attachments approved by the manufacturer.

• Wear appropriate clothing; including safety glasses, long pants, substantial slip-resistant footwear, gloves, and hearing protection. Tie back long hair. Do not wear jewelry.

• Inspect the area where you will use the equipment and ensure that all objects are removed from the area before use.

• Use extra care when handling fuels. They are flammable and vapors are explosive.

  • Use only an approved container.

  • Do not remove the fuel cap or add fuel with the engine running. Allow the engine to cool before refueling. Do not smoke near the machine when the engine is running.

  • Do not refuel or drain the machine indoors.

• Check that the operator's presence controls, safety switches, and shields are attached and functioning properly. Do not operate the machine unless they are functioning properly.

• Lightning can cause severe injury or death. If lightning is seen, or thunder is heard in the area, do not operate the machine; seek shelter.

• Do not run an engine in an enclosed area.

• Operate only in well-lit areas, keeping away from holes and hidden hazards.

• Ensure that all drives are in neutral and that the parking brake is engaged before starting engine. Start the engine only from the operator’s position.

• Make sure that you have good footing while using this machine, especially when backing up. Reduced footing could cause slipping.

• Slow down and use extra care on hillsides. Be sure to travel side to side on hillsides. Turf conditions can affect the stability of the machine. Use caution while operating near drop-offs.

• Slow down and use caution when making turns and when changing directions on slopes.

• Do not raise the mower deck with the blades running.

• Do not operate the machine without the PTO shield or other guards securely in place. Be sure that all interlocks are attached, adjusted properly, and functioning properly.

• Do not operate with the discharge deflector raised, removed or altered, unless you are using a grass catcher.

• Do not change the engine governor setting or overspeed the engine.

• Stop the machine on level ground, disengage the drives, engage the parking brake, and shut off the engine before leaving the operator's position for any reason, including emptying the catchers or unclogging the chute.

• Stop the machine and inspect the blades after striking objects or if an abnormal vibration occurs. Make the necessary repairs before resuming operations.

• Keep your hands and feet away from the cutting unit.

• Look behind and down before backing up to ensure a clear path.

• Keep pets and bystanders away from an operating machine.

• Slow down and use caution when making turns and crossing roads and sidewalks. Stop the blades if you are not mowing.

• Be aware of the mower-discharge direction and do not point it at anyone.

• Do not operate the machine while tired, ill, or under the influence of alcohol or drugs.

• Use care when loading or unloading the machine into or from a trailer or truck.

• Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.

• To avoid personal injury or property damage, use extreme care in handling fuel. Fuel is extremely flammable and the vapors are explosive.

• Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

• Use only an approved fuel container.

• Do not remove the fuel cap or add fuel with the engine running.

• Allow the engine to cool before fueling.

• Do not fuel the machine indoors.

• Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances.

• Do not fill containers inside a vehicle, on a truck, or on a trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.

• Remove equipment from the truck or trailer and fuel it on the ground. If this is not possible, then add fuel with such equipment as a portable container rather than from a fuel-dispenser nozzle.

• Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete. Do not use a nozzle lock-open device.

• If you spill fuel on clothing, change your clothing immediately.

• Do not overfill the fuel tank. Replace the fuel cap and tighten it securely.

• Disengage drives, engage the parking brake, shut off the engine, and remove the key or disconnect spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing.

• Clean grass and debris from the cutting unit, drives, mufflers, and engine to help prevent fires.

• Clean up oil or fuel spills.

• Let the engine cool before storing the machine.

• Do not store fuel near flames or drain the fuel indoors.

• Do not allow untrained personnel to service the machine.

• Use jack stands to support components when required.

• Carefully release pressure from components with stored energy.

• Disconnect the battery or remove the spark-plug wire before making any repairs. Disconnect the negative terminal first and the positive terminal last. Connect the positive terminal first and negative last.

• Use care when checking the blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only replace blades; do not straighten or weld them.

• Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running.

• Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.

• Use care when loading or unloading the machine into a trailer or a truck.

• Use full-width ramps for loading machine into a trailer or a truck.

• Tie the machine down securely using straps, chains, cable, or ropes. Both front and rear straps should be directed down and outward from the machine.

Use a fuel stabilizer/conditioner in the machine to provide the following benefits:

• Keeps fuel fresh during storage of 90 days or less. For longer storage, drain the fuel tank.

• Cleans the engine while it runs

• Eliminates gum-like varnish buildup in the fuel system, which causes hard starting

  Important: Do not use fuel additives containing methanol or ethanol.

  Add the correct amount of fuel stabilizer/conditioner to the fuel.

  Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times.

1. Park the machine on a level surface, disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Clean around the fuel-tank cap and remove the cap.

4. Fill the fuel tank to the bottom of the filler neck.

   Note: Do not fill the fuel tank completely full. The empty space in the tank allows the gasoline to expand.

5. Install the fuel-tank cap securely. Wipe up any spilled fuel.

Pull the parking-brake lever rearward into the ENGAGED position (Figure 8).

Figure 8

1. Parking brake—engaged
2. Parking brake—disengaged

Push the parking-brake lever forward (Figure 8).

Figure 10 and Figure 11 show 2 ways to disengage the mower blades.

Figure 10

Figure 11

Operate the machine with the platform up for the following conditions:

• Mowing near drop-offs

• Mowing small areas where the machine is too large

• Areas with low, over-hanging branches or obstacles

• Loading the machine for transport

• Driving up slopes

To raise the platform, pull the back of the platform up so that the latch pin and knob lock it into place. Push it tight against the cushion for the latch pin to lock it into place.

Operate the machine with the platform down for the following conditions:

• Mowing most areas

• Driving across slopes

• Driving down slopes

To lower the platform, push the platform forward against the cushion to release pressure on the latch pin, then pull the knob out and lower the platform (Figure 19).

Figure 19

1. Platform up
2. Platform down
3. Pull the knob out to release the platform.

1. Disengage the parking brake; refer to Disengaging the Parking Brake.

2. Move the motion-control levers to the center, unlocked position.

   

   Figure 20

   1. Front reference bar
   2. Left control lever
   3. Rear reference bar
   4. Right control lever
   5. Right control lever in the NEUTRAL-LOCK position
   6. Left control lever in the NEUTRAL-LOCK position

3. Slowly push the motion-control levers forward (Figure 21).

   Note: The engine shuts off if you move a motion-control lever while the parking brake is engaged.

   Note: The farther you move the motion-control levers in either direction, the faster the machine moves in that direction.

   Note: To stop, pull the motion-control levers back to the NEUTRAL position.

   

   Figure 21

1. Move both motion-control levers to the center, unlocked position.

2. Slowly pull the motion-control levers rearward (Figure 22).

   

   Figure 22

You can release the cushion for rear access to the machine for maintenance or adjustment.

1. Lower the platform.

2. Loosen the twist knobs on each side of the machine (Figure 30).

   

   Figure 30

   1. Twist knob
   2. Cushion

3. Remove the cushion and lower it to the platform.

4. Perform any maintenance or adjustment on the machine.

5. Raise the cushion, and slide it onto the pins on both sides of the machine.

6. Tighten the twist knobs.

Grease the pivots of the accessory frame at the locations shown in Figure 31.

Figure 31

1. Grease these pivots.

Grease the torsion idler on the mower deck using high-temperature grease at the grease fitting shown in Figure 32.

Important: Use only high-temperature grease.

Figure 32

1. Grease fitting

1. Remove the dust cap and adjust the caster pivots; refer to Adjusting the Caster-Pivot Bearing.

   Note: Keep the dust cap off until you have finished greasing the caster pivots.

2. Remove the hex plug.

3. Thread a grease fitting into the hole.

4. Pump grease into the fitting until it oozes out around the top bearing.

5. Remove the grease fitting from the hole.

6. Install the hex plug and dust cap.

Grease type: Lithium or molybdenum grease

1. Park the machine on a level surface, disengage the PTO, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Remove the caster wheel from the caster forks.

4. Remove the seal guards from the wheel hub (Figure 33).

   

   Figure 33

   1. Seal guard
   2. Spacer nut with wrench flats

5. Remove 1 spacer nut from the axle assembly in the caster wheel.

   Note: Thread-locking adhesive has been applied to lock the spacer nuts to the axle. Remove the axle (with the other spacer nut still assembled to it) from the wheel assembly.

6. Pry out the seals, inspect bearings for wear or damage, and replace them if necessary.

7. Pack the bearings with a general-purpose grease.

8. Insert 1 bearing and 1 new seal into the wheel.

   Note: You must replace the seals.

9. If both spacer nuts in the axle assembly have been removed (or broken loose), apply a thread-locking adhesive to 1 spacer nut, threading it onto the axle with the wrench flats facing outward.

   Note: Do not thread the spacer nut all of the way onto the end of the axle. Leave approximately 3 mm (1/8 inch) from the outer surface of the spacer nut to the end of the axle inside the nut.

10. Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing.

11. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease.

12. Insert the second bearing and the new seal into the wheel.

13. Apply a thread-locking adhesive to the second spacer nut, threading it onto the axle with the wrench flats facing outward.

14. Torque the nut to 8 to 9 N∙m (71 to 80 in-lb), loosen it, then torque it to 2 to 3 N∙m (20 to 25 in-lb).

    Note: Make sure that the axle does not extend beyond either nut.

15. Install the seal guards over the wheel hub and insert the wheel into the caster fork.

16. Install the caster bolt and tighten the nut fully.

Important: To prevent seal and bearing damage, check the bearing adjustment often by spinning the caster wheel. The wheel should not spin freely (more than 1 or 2 revolutions) or have any side play. If the wheel spins freely, adjust the torque on the spacer nut until there is a slight amount of drag, and apply thread-locking adhesive.

Note: Check the filters more frequently if the operating conditions are extremely dusty or sandy.

Oil Type: Detergent oil (API service SJ or higher)

Oil Capacity: 1.65L (56 oz) with a filter change; 1.50L (51 oz) without a filter change

Viscosity: See the table below.

Figure 36

Note: Use a synthetic oil with 5W-20 or 5W-30 rating, up to 4°C (40°F).

Note: Synthetic oils provide better starting when the temperature is below -23°C (-10°F).

Make sure that the air gap between the center and side electrodes is correct before installing the spark plug.

Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary.

Type for all Engines: Kohler 25 132 14-c, Champion XC12YC, or equivalent

Air Gap: 0.75 mm (0.03 inch)

Checking the Spark Plug

Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has a black coating, worn electrodes, an oily film, or cracks.

If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty.

Set the gap to 0.75 mm (0.03 inch).

Figure 42

Close section

Installing the Spark Plug

Figure 43

Close section

1. Shut off the engine, wait for all moving parts to stop, engage the parking brake, and remove the key.

2. Wait for the muffler to cool.

3. If any breaks in the screen or welds are observed, replace the arrester.

4. If plugging of the screen is observed, remove the arrester, shake loose particles out of the arrester, and clean the screen with a wire brush (soak in solvent if necessary).

5. Install arrester on exhaust outlet.

You can drain the fuel tank by removing it and pouring the fuel out of the fill neck; refer to Removing the Fuel Tank. You can also drain the fuel tank by using a siphon in the following procedure.

1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position

3. Clean around the fuel cap to prevent debris from getting into the fuel tank (Figure 44).

4. Remove the fuel cap.

5. Insert a syphon pump into the fuel tank.

6. Using the syphon pump, drain the fuel into a clean gas can (Figure 44).

7. Wipe up any spilled fuel.

   

   Figure 44

   1. Fuel cap

1. Lower the platform.

2. Release the cushion; refer to Releasing the Cushion for Rear Access.

3. Remove the cross bracket.

   

   Figure 45

4. Remove the fuel tank and set it on the operator platform.

   Note: If you want to move the fuel tank further from the machine, remove the fuel and vent lines from the top of the tank.

Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of 4 parts water and 1 part baking soda. Apply a light coating of grease to the battery terminals to prevent corrosion.

Voltage: 12V

Installing the Battery

Install the battery as shown in Figure 48.

Figure 48

Close section

The electrical system is protected by fuses and requires no maintenance. If a fuse blows, check the component or circuit for a malfunction or short.

1. Release the cushion from the rear of the machine.

2. Pull out the fuse to remove or replace it (Figure 50).

3. Install the cushion to the rear of the machine.

   Note: Ensure that the correct-size fuse is installed Figure 50.

   

   Figure 50

   1. Key switch fuse—15 A
   2. Accessory-port fuse—15 A
   3. Power takeoff (PTO) fuse—10 A
   4. Infocenter fuse—7.5 A

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

1. Push both control levers forward the same distance.

2. Check if the machine pulls to 1 side.

   Note: If it does, shut off the machine and engage the parking brake.

3. Release the cushion from the rear of the machine; refer to Releasing the Cushion for Rear Access.

   Note: For easier access, you can also remove the fuel tank; refer to Removing the Fuel Tank.

4. Rotate the left control rod in quarter-turn increments until the machine tracks straight (Figure 51).

   Note: If the machine pulls to the right, shorten the control rod by rotating it to the right. If the machine pulls to the left, lengthen the rod by rotating it to the left.

   Note: Only adjust the left control rod to match the left wheel speed to the right wheel speed. Do not adjust the right wheel speed, as this positions the right motion-control lever out of the center for the control panel neutral-lock slot.

   Important: Do not rotate the control rod too far, as this may cause the machine to creep in neutral.

   

   Figure 51

   1. Rotate left to lengthen the rod.
   2. Left control rod
   3. Rotate right to shorten the rod.

5. Check for proper tracking, and adjust the rod as necessary.

   Note: If you are unable to achieve proper tracking by adjusting the left control rod, contact your Authorized Service Dealer.

6. Check that the machine does not creep from the neutral position with the park brakes disengaged.

7. Install the fuel tank, if you removed it.

8. Install the cushion.

Maintain the air pressure in the rear tires at 83 to 97 kPa (12 to 14 psi).

Important: Uneven tire pressure can cause an uneven cut.

Note: The front tires are semi-pneumatic tires and do not require air-pressure maintenance.

Figure 52

1. Disengage the blade-control switch (PTO), move the motion control levers to the NEUTRAL-LOCK position, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Remove the dust cap from the caster and tighten the locknut (Figure 53).

4. Tighten the locknut until the spring washers are flat, and then back off a 1/4turn to properly set the preload on the bearings (Figure 53).

   Important: Make sure that the spring washers are installed correctly as shown in Figure 53.

5. Install the dust cap (Figure 53).

   

   Figure 53

   1. Spring washers
   2. Locknut
   3. Dust cap

The caster wheels rotate on a roller bearing supported by a spanner bushing. If the bearing is kept well lubricated, wear will be minimal. Failure to keep the bearing well lubricated causes rapid wear. A wobbly caster wheel usually indicates a worn bearing.

1. Remove the locknut and wheel bolt holding the caster wheel to the caster fork (Figure 54).

   

   Figure 54

   1. Locknut
   2. Bushing
   3. Spanner bushing
   4. Roller bearing
   5. Caster wheel
   6. Wheel bolt

2. Remove 1 bushing, then pull the spanner bushing and roller bearing out of the wheel hub (Figure 54).

3. Remove the other bushing from the wheel hub and clean any grease and dirt from the wheel hub (Figure 54).

4. Inspect the roller bearing, bushings, spanner bushing and the inside of the wheel hub for wear.

   Note: Replace any damaged or worn parts (Figure 54).

5. Place 1 bushing into the wheel hub (Figure 54).

6. Grease the roller bearing and spanner bushing, and slide them into the wheel hub (Figure 54).

7. Place the second bushing into the wheel hub (Figure 54).

8. Install the caster wheel into the caster fork and secure it with the wheel bolt and locknut (Figure 54).

9. Tighten the locknut until the spanner bushing bottoms against the inside of the caster forks (Figure 54).

10. Grease the fitting on the caster wheel.

Some later model year units have been built with clutches that contain a brake shim. When the clutch brake has worn to the point where the clutch no longer engages consistently, you can remove the shim to extend the clutch life.

Figure 55

1. Armature
2. Field shell
3. Rotor
4. Brake-mounting bolt
5. Brake spacer
6. Regap the shim.
7. Brake pole

Check and torque the wheel lug nuts to 115 to 142 N∙m (85 to 105 ft-lb).

Check and torque the wheel hub nuts to 286 to 352 N∙m (211 to 260 ft-lb).

Before each use, remove any buildup of grass, dirt, or other debris from the cylinder and cylinder-head cooling fins, air-intake screen on the flywheel end, and the carburetor-governor levers and linkage. This helps ensure that adequate cooling and correct engine speed, and reduces the possibility of overheating or mechanical damage to the engine.

1. Disengage the PTO and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Remove the air-intake screen and fan housing (Figure 61).

4. Clean the debris and grass from the engine parts.

5. Install the air-intake screen and the fan housing (Figure 61).

   

   Figure 61

   1. Guard and engine air-intake screen
   2. Fan housing
   3. Engine-oil cooler

Before each use, check the brakes on a level surface and slope.

Always engage the parking brake when you stop the machine or leave it unattended.

Important: If the parking brake does not hold securely, adjust it.

Signs of a worn belt include squeaking when the belt is rotating, a slipping blade when cutting grass, a frayed belt edge, burn marks, and cracks. Replace the deck belt if any of these conditions are evident.

1. Disengage the PTO and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Replace the belt as shown in Figure 63.

   

   Figure 63

1. Remove the fuel tank; refer to Removing the Fuel Tank.

2. Remove the hydraulic-reservoir cap.

3. Locate the drain plugs in the bottom of the transmission and place a drain pan under the plug (Figure 64).

   

   Figure 64

   1. Drain plug

4. Allow the hydraulic fluid to drain from the machine.

5. Remove the lower hydraulic hose (Figure 65).

   

   Figure 65

   1. Lower hydraulic hose
   2. Transmission belt
   3. Tension spring

6. Remove the tension spring (Figure 65).

   Caution

   The spring is under tension when installed and can cause personal injury.

   Wear safety glasses and be careful when removing the spring.

7. Remove the deck belt from the clutch and clutch stop (Figure 65).

8. Install the new belt.

9. Install the tension spring and lower hydraulic hose.

10. Install the drain plugs.

11. Add hydraulic fluid to the fill level.

12. Install the hydraulic-reservoir cap.

13. Run the machine for 10 minutes and verify that the hydraulic fluid is at the correct level.

If the motion-control levers do not align horizontally, adjust the right side motion-control lever.

1. Disengage the PTO, move the motion-control levers to the neutral position, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Push the motion-control levers down out of the NEUTRAL-LOCK position (Figure 66).

4. Check if the right motion-control lever aligns horizontally with the left motion-control lever (Figure 66).

   

   Figure 66

   1. Left motion-control lever
   2. Right motion-control lever in the Neutral-lock position
   3. Check the horizontal alignment here
   4. Right motion-control lever

5. To adjust the motion-control levers horizontally, you must adjust the cam.

6. Release the cushion from the rear of the machine.

7. Loosen the nut holding the cam (Figure 67).

   

   Figure 67

   1. Cam
   2. Nut

8. Adjust the cam until it aligns with the left motion-control lever and tighten the nut for the cam.

   Note: Moving the cam clockwise (in the vertical position) lowers the handle; moving the cam counterclockwise (in the vertical position) raises the handle.

   Important: Ensure that the flat portion of the cam does not go above a vertical position (right or left); otherwise you may damage the switch.

9. Repeat steps 3 through 8 for the left motion-control lever.

Hydraulic Fluid Type: Toro® HYPR-OIL ™ 500 hydraulic fluid

Hydraulic System Fluid Capacity: 4.7 L (5 US qt)

Important: Use the fluid specified. Other fluids could damage the system.

Park the machine on a level surface, disengage the blades and engage the parking brake. Shut off the engine, remove the key, and disconnect the spark-plug wires from the spark plugs.

1. Inspect the cutting edges (Figure 74).

2. If the edges are not sharp or have nicks, remove and sharpen the blade; refer to Sharpening the Blades.

3. Inspect the blades, especially in the curved area.

4. If you notice any cracks, wear, or a slot forming in this area, immediately install a new blade (Figure 74).

   

   Figure 74

   1. Cutting edge
   2. Curved area
   3. Wear/slot forming
   4. Crack

1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.

2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Rotate the blades until the ends face forward and backward.

4. Measure from a level surface to the cutting edge, position A, of the blades (Figure 75).

   

   Figure 75

   1. Measure here from blade to hard surface
   2. Position A

5. Rotate the opposite ends of the blades forward.

6. Measure from a level surface to the cutting edge of the blades at the same position as in step4 above.

   Note: The difference between the dimensions obtained in steps 4 and5 must not exceed 3mm (1/8inch).

   Note: If this dimension exceeds 3mm (1/8inch), replace the blade.

   Warning

   A blade that is bent or damaged could break apart and could critically injure you or bystanders.

   • Always replace a bent or damaged blade with a new blade.

   • Do not file or create sharp notches in the edges or surfaces of the blade.

Replace the blades if they hit a solid object, if a blade is out of balance, or if a blade is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in nonconformance with safety standards.

1. Hold the blade end using a rag or a thickly-padded glove.

2. Remove the blade bolt, the curved washer, and the blade from the spindle shaft (Figure 76).

   

   Figure 76

   1. Sail area of the blade
   2. Blade
   3. Curved washer
   4. Blade bolt

1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 77).

   Note: Maintain the original angle.

   Note: The blade retains balance if the same amount of material is removed from both cutting edges.

   

   Figure 77

   1. Sharpen at the original angle

2. Check the balance of the blade by putting it on a blade balancer (Figure 78).

   Note: If the blade stays in a horizontal position, the blade is balanced.

   

   Figure 78

   1. Blade
   2. Balancer

3. If the blade is not balanced, file some metal off the end of the sail area only (Figure 76).

4. Repeat this procedure until the blade is balanced.

1. Install the blade onto the spindle shaft (Figure 79).

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

2. Install the spring disk and blade bolt (Figure 79).

   Note: The spring-disk cone must be installed toward the bolt head (Figure 79).

3. Torque the blade bolt to 115 to 150N∙m (85 to 110ft-lb).

   

   Figure 79

   1. Sail area of the blade
   2. Blade
   3. Spring disk
   4. Blade bolt

1. Adjust the rear-tire pressure.

2. Ensure that the blades are not bent; refer to Checking for Bent Blades.

3. Position the blades side-to-side.

4. Measure at the B and C locations from a level surface to the cutting edge of blade tips (Figure 80).

   

   Figure 80

   1. Measure from a level surface
   2. Measure the blade at points B and C

5. The difference between measurements B and C should be no more than 6 mm (1/4 inch).

   Note: If it is not correct, refer to Leveling the Mower Deck from Side to Side.

1. Loosen the side nut and jam nut in the yokes you want to adjust (Figure 81).

   

   Figure 81

   1. Top bolt
   2. Jam nut
   3. Yoke
   4. Side nut
   5. Adjust these yokes to adjust the right side of the mower deck.
   6. Adjust these yokes to adjust the left side of the mower deck.

2. Rotate the top bolt of the yokes to adjust the height of the mower deck (Figure 81).

   Note: Rotate the bolts clockwise to raise the deck; rotate the bolt counterclockwise to lower it.

3. Tighten the jam nuts and side bolts.

4. Check the side-to-side height; refer to Checking the Mower Deck Side-to-Side Height.

1. Adjust the tire pressure in the rear tires to the correct specifications.

2. Position 1 blade front-to-rear. Measure at A and B locations from a level surface to the cutting edge of the blade tips (Figure 82).

   Note: The mower blade should be 6 mm (1/4 inch) lower in front at A than in the rear at B.

3. Rotate the blades and repeat for other blades.

   

   Figure 82

   1. Measure the blade at points A and B
   2. Measure from a level surface

4. If the front-to-rear pitch is not correct, refer to Leveling the Mower Deck from Front to Rear.

1. Loosen the jam nut and side bolt in the yokes that you want to adjust (Figure 83).

   

   Figure 83

   1. Top bolt
   2. Jam nut
   3. Yoke
   4. Side nut
   5. Adjust these yokes to adjust the front side of the mower deck.
   6. Adjust these yokes to adjust the rear side of the mower deck.

2. Rotate the top bolt of the yokes to adjust the height of the mower deck (Figure 83).

   Note: Rotate the bolt clockwise to raise the deck; rotate the bolt counterclockwise to lower it.

3. Tighten the jam nuts and side bolts.

4. Check the front-to-rear pitch; refer to Checking the Mower Deck Front-to-Rear Pitch.

1. Check the rear tire pressure.

2. Set the height-of-cut to the 7.6 cm (3 inches) position; refer to Adjusting the Height-of-Cut.

3. With the machine on level surface, position 1 blade front-to-rear.

4. Measure at A, and from a level surface to the cutting edge of the blade tips (Figure 84).

   Note: The measurement should be 7.6 cm (3 inches).

   

   Figure 84

   1. Measure from a level surface
   2. Measure the blade at point A

5. If the measurement is not correct, locate the front 2 yokes on the machine (Figure 83).

6. Loosen the side bolt and jam nut of the yokes.

7. Adjust the top bolt of the yokes until the blade tips match 7.6 cm (3 inches).

8. Tighten the jam nuts and side bolts.