PT-36, PT-36PP, PT-46, and PT-46PP Power Trowels

• Read the Operator's Manual and other training material. If the operator(s) or mechanic(s) cannot read or understand the information, 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 people or damage to property.

• Wear appropriate clothing including hard hat, eye protection, long pants, substantial, slip-resistant footwear, and hearing protection. Tie back long hair, secure loose clothing, and do not wear loose jewelry.

• Inspect the area where the equipment is to be used and ensure that all objects are removed from the area before use.

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

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

  • Use only an approved container

  • Do not remove the fuel cap or fill the fuel tank while the engine is running or hot.

  • Do not add or drain fuel in an enclosed space.

  • 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 other appliance.

  • If you spill fuel, do not attempt to start the engine; avoid creating any source of ignition until the fuel vapors have dissipated.

• Check that the shields are attached and functioning properly. Do not operate unless they are functioning properly.

• Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

• Never run an engine in an enclosed or poorly ventilated area.

• Operate the machine only in good light, keeping away from holes and hidden hazards.

• Stop on level ground, set the throttle to slow, and shut off the engine before leaving the operator's position for any reason.

• Ensure that the area is clear of other people before operating the machine. Shut off the machine if anyone enters the area.

• Keep bystanders out of the operating area. Stop the machine if anyone enters the area.

• Keep your feet clear of the plate compactor.

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

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

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

• Do not touch parts which may be hot from operation. Allow them to cool before attempting to maintain, adjust, or service.

• 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.

• Let the engine cool before storing and do not store the machine near an open flame.

• Position the machine on a level surface, set the throttle to slow, and shut off the engine. Wait for all movement to stop before adjusting, cleaning, or repairing.

• Clean debris from drives, mufflers, and the engine to help prevent fires. Clean up oil or fuel spills.

• Do not store fuel near flames or drain indoors.

• Never allow untrained personnel to service the machine.

• Carefully release pressure from components with stored energy.

• Disconnect the spark plug before making any repairs.

• 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.

• Keep nuts and bolts tight. Keep equipment in good condition.

• Stop and inspect the equipment if you strike an object. Make any necessary repairs before restarting.

• Use only genuine Toro replacement parts to ensure that original standards are maintained.

Use a fuel stabilizer/conditioner in the machine to keep the fuel fresh during storage of 90 days or less. If you are storing the machine for longer, drain the fuel tank; refer to Before storage.

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

Add the correct amount of fuel stabilizer/conditioner to the fuel, and follow the directions of the manufacturer.

Note: 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. Set the Dyna-Clutch lever to the STOP position, shut off the engine, wait for all moving parts to stop, and turn off the engine switch.

2. Allow the engine to cool.

3. Clean around the fuel-tank cap and remove it (Figure 12).

   Note: The cap is tethered to the fuel tank.

   

   Figure 12

   1. Maximum fuel level

4. Add unleaded fuel to the fuel tank until the level is at the bottom of the maximum fuel level (Figure 12).

   Important: The extra space in the tank allows the fuel to expand. Do not fill the fuel tank completely full.

5. Install the fuel-tank cap securely.

6. Wipe up any spilled fuel.

Before performing any maintenance on the engine, belts, or blades, disconnect the spark-plug wire from the spark plug (Figure 13).

Figure 13

1. Spark-plug wire

Grease Type: General-purpose grease.

1. Clean around each grease fitting with a rag and lift the plastic cap off each grease fitting.

2. Pump several shots of grease into each fitting until it starts to ooze out of the bearing (Figure 14 and Figure 15).

   Important: Pump grease in slowly and carefully to prevent damage to the bearing seals.

   

   Figure 14

   

   Figure 15

3. Wipe up any excess grease.

Important: Do not operate the engine without the air-cleaner assembly; extreme engine damage will occur.

1. Set the Dyna-Clutch lever to the STOP position, shut off the engine, and wait for all moving parts to stop.

2. Disconnect the wire from the spark plug.

3. Remove the nut that secures the air-cleaner cover (Figure 16 Box A).

   

   Figure 16

4. Remove the cover (Figure 16 Box B).

   Note: Be careful to prevent dirt and debris from falling into the base.

5. Remove the foam and paper elements from the base (Figure 16 Box C).

6. Remove the foam element from the paper element (Figure 16 Box D).

7. Inspect the foam and paper elements, and replace them if they are damaged or excessively dirty.

   Note: Never try to brush dirt off the paper element; brushing forces the dirt into the fibers.

8. Clean the foam element in warm, soapy water or in a nonflammable solvent.

   Note: Do not use fuel to clean the foam element because it could create a risk of fire or explosion.

9. Rinse and dry the foam element thoroughly.

10. Dip the foam element in clean engine oil, then squeeze out the excess oil.

    Note: Excess oil in the foam element restricts the air flow through the element and may reach the paper filter and clog it.

11. Wipe dirt from the base and the cover with a moist rag.

    Note: Be careful to prevent dirt and debris from entering the air duct leading to the carburetor.

12. Install the air cleaner elements and ensure that they are properly positioned.

13. Securely install the cover with the nut.

Oil Type: 4-cycle engine oil that meets or exceeds the requirements for API service category SJ or higher

Important: If the oil level in the crankcase is too low or too high and you run the engine, you may damage the engine.

Viscosity: Use SAE 10W-30 for general use. You can use the other viscosities shown in the chart when the average temperature in your area is within the indicated range (Figure 8).

Figure 17

Oil Type: 80W-90 gear oil that meets or exceeds API service category GL-5.

Capacity: 1.18 L (1.25 US qt)

1. Set the Dyna-Clutch lever to the STOP position, shut off the engine, and wait for all moving parts to stop.

2. Disconnect the wire from the spark plug.

3. Place a pan under the drain plug to catch the oil.

4. Remove the gearcase plug (Figure 18).

   

   Figure 19

   1. Gearcase plug

5. Tip the machine and drain the oil completely out of the gearcase.

   Note: Dispose of the used oil at a certified recycling center.

6. Return the machine to an upright, level position.

7. Place a 3.8 cm (1-1/2 inch) block under the stationary blade guard (outer ring) so that the side of the gearbox with the plug is approximately 6 mm (1/4 inch) higher than the other side of the gearbox.

8. Slowly pour oil into the plug hole until the oil reaches the threads of the hole.

   Note: If necessary, use a flexible funnel.

9. Apply thread-sealing compound to the threads of the plug.

10. Install and tighten the plug until it is secure, and return the machine to an upright, level position.

    Note: The oil level in the sight glass of the plug should be 3/4 full (Figure 20).

    

    Figure 20

Use an NGK BPR6ES spark plug or equivalent.

1. Set the Dyna-Clutch lever to the STOP position, shut off the engine, and wait for all moving parts to stop.

2. Disconnect the wire from the spark plug.

3. Clean around the spark plug.

4. Remove the spark plug from the cylinder head.

   Important: Replace a cracked, fouled, or dirty spark plug. Do not clean the electrodes, because grit entering the cylinder can damage the engine.

5. Set the gap on the plug to 0.76 mm (0.030 inch); refer to Figure 21.

   

   Figure 21

   1. Side electrode
   2. Center electrode
   3. Insulator
   4. 0.76 mm (0.030 inch) gap

6. Carefully install the spark plug by hand (to avoid cross threading) until it is hand tight.

7. Tighten the spark plug an additional 1/2 turn if it is new; otherwise, tighten it an additional 1/8 to 1/4 turn.

   Important: A loose spark plug can become very hot and can damage the engine; overtightening a spark plug may damage the threads in the cylinder head.

8. Connect the wire to the spark plug.

1. Remove the belt guard; refer to Removing the Belt Guard.

2. Move the Dyna-Clutch lever to the STOP position.

3. Check the condition of the belt for wear or damage.

   Note: If the belt is worn or damaged, replace the belt; refer toRemoving the Belt and Installing the Belt.

4. Move the Dyna-Clutch lever to the RUN position.

5. Check that the belt is aligned straight between pulleys.

   Note: If the belt does not run straight between pulleys, align the pulleys; refer to Aligning the Pulleys.

6. Check that the belt has enough tension to flatten it between the engine pulley and the belt tension pulley.

   Note: If belt tension is too low, adjust the tension of the belt-tension pulley; refer to Adjusting the Dyna-Clutch.

7. Measure the gap between the belt and the belt guide. The air gap should be approximately 6 mm (1/4 inch).

   Note: If the air gap is larger or smaller than 6 mm (1/4 inch), adjust the belt guide (Figure 26); refer to Adjusting the Belt Guide.

8. Install the belt guard; refer to Installing the Belt Guard.

1. Remove the 2 hex-washer head bolts (5/16 x 1 inch) that secure the belt guard to the belt-guard bracket (Figure 22).

   

   Figure 22

   1. Hex-washer head bolt
   2. Belt cover
   3. Belt-cover bracket

2. Pull the belt guard away from the engine and then up (Figure 22).

1. Align the holes in the belt guard with the holes in the belt-cover bracket (Figure 22).

2. Secure the belt guard to the bracket with the 2 hex-washer head bolts (5/16 x 1 inch).

1. Position the machine on a level surface, place the Dyna-Clutch lever in the STOP position, shut off the engine, and disconnect the spark-plug wire.

2. Remove the belt guard; refer to Removing the Belt Guard.

3. Slip the belt off the belt-tension pulley (Figure 23).

   

   Figure 23

   1. Belt-tension pulley
   2. Belt
   3. Gearbox pulley
   4. Engine pulley

4. Slip the belt off the gearbox pulley (Figure 23).

5. Slip the belt off the engine pulley and remove the belt (Figure 23).

1. Ensure the Dyna-Clutch lever in the STOP position.

2. Align the belt over the engine pulley (Figure 23).

3. Align the belt over the gearbox pulley (Figure 23).

4. Slip the belt over the belt-tension pulley (Figure 23).

5. Install the belt guard; refer to Installing the Belt Guard.

1. Place a straight-edge ruler across the engine pulley and the gearbox pulley (Figure 24).

   

   Figure 24

   1. Straight edge
   2. Gearbox pulley
   3. Engine pulley
   4. Setscrew

2. If the pulleys are out of alignment, perform the following steps:

   1. Loosen the 2 setscrews that secure the engine pulley to the engine shaft (Figure 24).

   2. Gently tap the engine pulley toward or away from the engine until the gearbox and engine pulleys align to the straight-edge ruler (Figure 24).

   3. Tighten the 2 setscrews that secure the engine pulley to the engine shaft (Figure 24).

Important: This adjustment procedure affects the operation of the Dyna-Clutch and is critical to the safe operation of the machine.

Adjust the tension-pulley spring as needed to tighten the belt.

1. Move the Dyna-Clutch lever to the STOP position; refer to Dyna-Clutch Lever.

2. Loosen the 2 jam nuts that secure the barrel of the clutch cable to the clutch bracket, and rotate the nuts to either end of threads on the barrel (Figure 25).

   

   Figure 25

   1. Clutch bracket
   2. Barrel
   3. Cable housing
   4. Spring
   5. Cable
   6. Locknuts

3. Grasp the barrel with 1 hand and lift the cable housing lightly (Figure 25).

   Note: Lifting the cable housing at the barrel should remove the slack from the cable but apply no tension to the spring.

4. While holding tension on the cable, use your other hand, rotate the jam nuts until the nuts are flush to the clutch bracket (Figure 25).

5. Tighten the jam nuts to secure the barrel to the bracket (Figure 25).

6. Check the tension of the control cable. Repeat steps 2 through 4 until there is tension on the Dyna-Clutch cable but no tension on the spring.

   Note: If there is too much tension on the cable and spring, the Dyna-Clutch will not release completely. If there is not enough tension on the cable, the cable may disconnect from the pulley bracket.

7. If you need to make a finer cable adjustment, perform the following:

   1. Loosen the 2 jam nuts slightly (Figure 25).

   2. Rotate the jam nuts to clockwise to increase cable tension or counterclockwise to decrease tension (Figure 25).

   3. Tighten the jam nuts to secure the barrel to the clutch bracket (Figure 25).

8. Start the machine and set Dyna-Clutch to the RUN position for a few moments, then move the Dyna-Clutch to the STOP position.

   Note: If the blades continue to rotate when the Dyna-Clutch is in the STOP position, there is too much tension on the clutch cable. Shut off the engine and repeat step 7 until the blades do not rotate when the engine is running and the Dyna-Clutch is in the STOP position.

1. Place the Dyna-Clutch lever in the RUN position.

2. Measure the air gap between the belt and the belt guide (Figure 26).

   

   Figure 26

   1. 6 mm (1/4 inch) measures-air gap
   2. Belt
   3. Belt guide
   4. Hex-head bolt

The air gap should be approximately 6 mm (1/4 inch). If an adjustment needs to be done, perform the following:

1. Loosen the hex-flange head bolt that secures the belt guide to the engine plate (Figure 26).

2. While keeping the top of the belt guide parallel to the belt, move the belt guide toward or away from the belt until the air gap is correct (Figure 26).

3. Tighten the hex-flange head bolt that secures the belt guide to the engine plate (Figure 26).

1. Set the Dyna-Clutch lever to the Stop position, shut off the engine, and wait for all moving parts to stop.

2. Disconnect the wire from the spark plug.

3. Attach an overhead lift to the lifting point on the machine and lift it off of the ground.

4. Turn the tilt knob until there is enough cable slack to access the tilt locknut (Figure 27).

   

   Figure 27

   1. Tilt knob
   2. Bearing
   3. Tilt rod
   4. Tilt locknut
   5. Washer
   6. Nut
   7. Tilt block
   8. Tilt cable
   9. Set screw

5. Tighten the locknut against the bearing then loosen it slightly. Set it with the set screw (Figure 27).

6. Adjust the nuts inside the tilt block to take up any cable slack.

Note: Replace the cables if full tilt is no longer obtainable.

1. Set the Dyna-Clutch lever to the Stop position, shut off the engine, and wait for all moving parts to stop.

2. Disconnect the wire from the spark plug.

3. Attach an overhead lift to the lifting point on the machine and lift if off of the ground.

4. Loosen the nut on the upper end of the linkage rod to allow slack in the lift cable (Figure 28).

   

   Figure 28

   1. Nut
   2. Swivel
   3. Nut
   4. Linkage rod
   5. Nut
   6. Yoke end

5. Position the ProPitch handle in the full tilt position.

6. Adjust the nut on the backside of the swivel at the upper end of the linkage rod until you achieve the proper gap of approximately 0.4 mm (1/64 inch) between the tilt lever and the gearcase.

7. Tighten the nut on the outside of the swivel to lock the linkage rod into position.

Adjust the blades to remove excessive shaking of the machine.