Form No. 3379-923 Rev A Commercial Walk-Behind Mower Fixed Deck, T-Bar, Gear Drive with 32in, 36in, or 48in Cutting Unit Model No. 30672—Serial No. 314000001 and Up Model No. 30674—Serial No. 314000001 and Up Model No. 30678—Serial No. 314000001 and Up Model No. 39674—Serial No. 314000001 and Up G017538 Register at www.Toro.com.
Agency (EPA) and the California Emission Control Regulation of emission systems, maintenance, and warranty. Replacements may be ordered through the engine manufacturer. WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Contents Introduction .................................................................. 2 Safety ........................................................................... 4 Safe Operating Practices........................................... 4 Toro Mower Safety .................................................. 6 Slope Indicator ....................................................... 7 Safety and Instructional Decals ................................. 8 Product Overview ....................................
Safety Adjusting the Mower Belt Tension ............................34 Mower Deck Maintenance...........................................37 Servicing the Cutting Blades.....................................37 Adjusting the Blade Brake........................................40 Replacing the Grass Deflector ..................................41 Storage ........................................................................41 Troubleshooting ...........................................................
• Use only an approved fuel container. • Never remove fuel cap or add fuel with the engine • Never run an engine in an enclosed area. • Only operate in good light, keeping away from holes and • • • • • • • • • • • • • • • • • • • hidden hazards. Be sure all drives are in neutral and parking brake is engaged before starting the engine. Only start the engine from the operator's position. Be sure of your footing while using this machine, especially when backing up. Walk; do not run.
Service replacement parts designed to the exact engineering specifications of our equipment. For peace of mind, insist on Toro genuine parts. • Never store the machine or fuel container inside where there is an open flame, such as near a water heater or furnace. Hauling • Keep nuts and bolts tight, especially the blade attachment • Use care when loading or unloading the machine into a • • bolts. Keep equipment in good condition. trailer or truck.
Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 20 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 20 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3. Example of how to compare slope with folded edge.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 1-403005 95-5537 3. Pull back to disengage 1. Read the Operator's Manual for instructions on operating the cutting blade 2.
8-3266 99-3943 For Model with 3–Blade Mower Decks 1. Engine 98-4387 1. Warning—wear hearing protection. 104-8569 98-5130 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 75-80 ft-lb (102-106 N⋅m).
Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. 110-2068 1. Read the Operator's Manual.
Controls Product Overview Become familiar with all the controls (Figure 5) before you start the engine and operate the machine. G017539 Figure 4 1. Side discharge 5. T-bar control 2. Mower deck 3. Recoil-start handle 4. Gas tank 6. Handle 7. Front caster wheel Figure 5 1. Throttle control 7. Parking brake lever—released position 2. Blade-control bail 8. Choke 3. Power take-off lever (PTO) 9. Ignition switch 4. Gear-shift lever 10. Upper handle 5. Upper control bar 11. Lower handle 6.
Specifications Important: Do not shift while the machine is moving, as transmission damage may occur. Note: Specifications and design are subject to change without notice. Upper Control Bar 32-inch mowers: Shift to the desired gear and push forward on the upper control bar and blade control bail to engage forward traction operation and pull back to brake forward movement. Pull back on right side of upper control bar to turn right and left side to turn left. Width with deflector down 116.3 cm (45.
Operation DANGER In certain conditions during fueling, static electricity can cause a spark, which can ignite the fuel vapors. A fire or explosion from fuel can burn you and others and can damage property. Adding Fuel • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method). • Always place fuel containers on the ground away from your vehicle before filling.
Filling the Fuel Tank Setting the Parking Brake 1. Pull the upper control bar rearward and hold it in this position (Figure 7). 2. Lift the parking-brake lock up and gradually release the upper control bar. The brake lock should stay in the set (locked) position (Figure 7). 1. Shut the engine off and set the parking brake. 2. Clean around the fuel-tank cap and remove the cap.
Operating the Blade-control Lever (PTO) Important: Do not pull the recoil rope to its limit or release the starter handle when you pull out the rope because the rope may break or the recoil assembly may be damaged. The blade-control lever (PTO) engages and disengages power to the mower blades. 10. Push the choke to the off position as the engine warms up. Engaging the Mower Blades 11. If the engine is cold, allow it to warm up and then move the throttle control to the fast position. 1.
The Safety-interlock System 3. Slowly press on the upper control bar to move forward (Figure 10). CAUTION To go straight, apply equal pressure to both ends of the upper control bar (Figure 10). If safety-interlock switches are disconnected or damaged the machine could operate unexpectedly, causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily, and replace any damaged switches before operating the machine.
Driving Forward up a Curb Note: Lifting up on the lower handle will assist driving the machine up a curb and not spin the drive wheels. 1. Disengage the mower blades. 2. Select the first gear to drive the machine. 3. Drive machine until the caster wheels contact the curb (Figure 11). 4. Lift the front of the machine by pushing down on the lower handle (Figure 11). 5. Drive the machine until the drive wheels contact the curb (Figure 11). 6. Lower the front of the machine (Figure 11).
Adjusting the Flow Baffle The mower discharge flow can be adjusted for different types of mowing conditions. Position the baffle to give the best quality of cut. 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. To adjust the baffle, loosen the nut (Figure 13). 4.
adjustment range, in 6 mm (1/4 inch) increments, of cutting height in any axle position. Use the same number of blade spacers on all blades to achieve a level cut (2 above and 2 below, 1 above and 3 below, etc.). 1. Disengage the blade control (PTO) lever and set the parking brakes. 2. Stop the engine and wait for all moving parts to stop before leaving the operating position. 3. Hold the blade bolt and remove the nut (Figure 17).
Adjusting the Axle Height Adjust the axle position to the selected height-of-cut setting. Refer to the Height-of-Cut Chart. 1. Disengage the blade control (PTO) lever and set the parking brakes. 2. Stop the engine and wait for all moving parts to stop before leaving the operating position. 3. Loosen, but do not remove, the 2 axle pivot bolts and the 2 axle adjustment bolts (Figure 18). Figure 19 1. Latch pin 3. Spacer, 13 mm (1/2 inch) 2. Spacer, 5 mm (3/16 inch) 2.
1 4 2 3 Figure 21 1. Upper handle 4. Lock nut (3/8 inch) 2. Rear frame 5. Upper mounting hole 3. Flange bolt (3/8 x 1 inch) 6. Lower mounting hole 5 g018809 Figure 22 3. Remove the lower flange bolts (3/8 x 1 inch) and flange nuts securing handle to rear frame (Figure 21). 4. Pivot handle to desired operating position and install lower flange bolts (3/8 x 1 inch) and flange nuts into mounting holes. Tighten all flange bolts. 1. 25 to 32 mm (1 to 1-1/4 inches) gap 4. Upper control bar 2.
Height-of-cut Chart Number of spacers below caster 13 mm (1/2 inch ) 5 mm (3/16 inch) A 0 A Number of 1/4 inch blade spacers below spindle 4 3 2 1 0 0 26 mm (1 inch) 32 mm (1-1/4 inch) 38 mm (1-1/2 inch) 45 mm (1-3/4 inch) 51 mm (2 inch) 0 1 29 mm (1-1/8 inch) 35 mm (1-3/8 inch) 41 mm (1-5/8 inch) 48 mm (1-7/8 inch) 54 mm (2-1/8 inch) A 1 0 35 mm (1-3/8 inch) 41 mm (1-5/8 inch) 48 mm (1-7/8 inch) 54 mm (2-1/8 inch) 60 mm (2-3/8 inch) B 0 1 35 mm (1-3/8 inch) 41 mm (1-5/8
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. • Check the mower belt tension. After the first 25 hours • Check the mower belt tension. Before each use or daily • • • • • • • Check the safety system. Grease the caster wheels and caster pivot. Check the engine-oil level. Clean the air-intake screen.
Lubrication Grease Type: #2 general-purpose lithium-based or molybdenum-based grease Lubricating the Machine 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 24 3. Clean the grease fittings with a rag. Make sure to scrape any paint off the front of the fitting(s). 4. Connect a grease gun to the fitting. Pump grease into the fittings until grease begins to ooze out of the bearings.
Engine Maintenance Cleaning the Foam Air-cleaner Element 1. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. Servicing the Air Cleaner 2. Dry the element by squeezing it in a clean cloth. Important: Replace the foam element if it is torn or worn. Service Interval/Specification Service Interval: Every 25 hours—Clean the foam air-cleaner element. Servicing the Paper Air-cleaner Element Every 50 hours—Check the paper air-cleaner element. 1.
Changing the Engine Oil 1. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. 2. Disengage the PTO and set the parking brake. 3. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Slide the drain hose over the oil drain valve. 5. Place a pan below the drain hose. Rotate oil drain valve to allow oil to drain (Figure 30). 6.
1 Figure 31 1. Oil filter 2. Adapter Figure 32 1. Spark-plug wire/spark plug 3. Apply a thin coat of new oil to the rubber gasket on the replacement filter (Figure 31). 4. Clean around the spark plugs to prevent dirt from falling into the engine and potentially causing damage. 4. Install the replacement oil filter to the filter adapter, turn the oil filter clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn (Figure 31). 5.
Installing the Spark Plugs Fuel System Maintenance 1. Install the spark plugs and the metal washer. Ensure that the air gap is set correctly. 2. Tighten the spark plugs to 22 N-m (16 ft-lb). Servicing the Fuel System 3. Connect the wires to the spark plugs (Figure 33). DANGER In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. • Drain gasoline from the fuel tank when the engine is cold.
Replacing the Fuel Filter Service Interval: Every 200 hours/Yearly (whichever comes first) Never install a dirty filter if it is removed from the fuel line. Note: Note how the fuel filter is installed in order to install the new filter correctly. Note: Wipe up any spilled fuel. 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Close the fuel-shutoff valve at the fuel tank (Figure 34). 4.
Drive System Maintenance Cooling System Maintenance Checking the Tire Pressure Cleaning the Air-intake Screen Service Interval: Every 50 hours/Monthly (whichever comes first) Before each use, remove any buildup of grass, dirt, or other debris from the cylinder and cylinder-head cooling fins, the air-intake screen on the flywheel end, and the carburetor-governor levers and linkage.
Brake Maintenance 3. Check the brake before you adjust it; refer to Checking the Brakes. Servicing the Brakes 4. Release the parking brake; refer to Releasing the Parking Brake in Operation. 5. To adjust the brake, rotate the wing nuts on the brake rods (Figure 39). Turn the wing nuts clockwise to tighten the brake and counterclockwise to loosen the brake. Before each use, check brakes on both a level surface and slope. Always set the parking brake when you stop the machine or leave it unattended.
Belt Maintenance 4. Remove the mower belt (Figure 41). Checking the Belts Service Interval: Every 50 hours/Monthly (whichever comes first)—Check the belts. Check the belts for cracks, frayed edges, burn marks, wear, signs of overheating, or any other damage. Replace any damaged belts. Replacing the Traction Drive Belt Figure 41 1. Remove the hairpin cotter securing the brake rod to the brake arm to relax the belt idler tension (Figure 40). 2.
Note: The proper mower belt tension is 44 to 67 N-m (10 to 15 ft-lb) with the belt deflected 13 mm (1/2 inch) halfway between the pulleys (Figure 45 or Figure 46). 8. Engage the blade-control (PTO) lever. 9. Check the clearance between the bell crank and the transmission output shaft (Figure 42). Figure 43 32-inch and 36-inch mower deck Figure 42 1. 13 mm (1/2 inch) deflection 4. Locknut here 2. Assist arm 5. Turnbuckle 3. Front stop 1. 2 to 3 mm (1/16 to 1/8 inch) 4. Hairpin cotter 2. Bell crank 5.
necessary. The disengaged belt should not drag or fall off the pulley when the guides are properly adjusted. Adjusting the Mower Belt Tension Adjusting the Tension for 32-inch and 36-inch Mower Decks Service Interval: After the first 8 hours—Check the mower belt tension. After the first 25 hours—Check the mower belt tension. Every 50 hours—Check the mower belt tension. Figure 45 32-inch and 36-inch mower deck Important: The brake needs to be adjusted when the belt tension or the brake linkage is adjusted.
positioned to the middle or front hole (Figure 48). Use the hole that will give the correct adjustment. 7. When the idler pulley is moved the belt guide must be moved. Move the belt guide to the front position (Figure 48). g017651 Figure 46 48-inch mower deck 1. Idler pulley Figure 48 2. Mower belt with 13 mm (1/2 inch) deflection 1. Rear idler pulley 4. Belt guide in back position 2. Middle hole 5. Front idler pulley 3.
Adjusting the PTO Engagement Linkage The PTO engagement linkage adjustment is located beneath the front left-hand corner of the engine deck. 1. Disengage the blade-control (PTO) lever and set the parking brakes. 2. Stop the engine and wait for all moving parts to stop before leaving the operating position. 3. Engage the blade-control lever (PTO). 4. Adjust the linkage length to where the lower end of the bellcrank just clears the axle support gusset (Figure 50). g017649 1 3 Figure 51 1. Yoke 2. Nut 3.
Mower Deck Maintenance Servicing the Cutting Blades 2 To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand. 1 3 WARNING g017650 Figure 52 1. Bellcrank 3. Switch mounting bracket 2. Bolts and nuts 4. Switch body A worn or damaged blade can break, and a piece of the blade could be thrown into the operator's or bystander's area, resulting in serious personal injury or death.
Checking for Bent Blades inch). If this dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced. Refer to Removing the Blades and Installing the Blades. 1. Disengage the blade-control switch (PTO) and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. WARNING A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. 3.
balanced, file some metal off the end of the sail area only (Figure 59). Repeat this procedure until the blade is balanced. Figure 59 1. Blade 2. Balancer Installing the Blades 1. Install the curved washer and then the blade onto the bolt. Select the proper number of spacer(s) for the height of cut, and slide the bolt into the spindle (Figure 57). Important: The curved part of the blade must point upward toward the inside of the mower to ensure proper cutting. 2.
Adjusting the Blade Brake 1. Disengage the PTO, turn the ignition key to the off position, and remove the key. 2. Wait for all moving parts to stop before leaving the operating position and then set the parking brake. 3. If necessary, adjust the spring mounting bolts so that the blade brake pad rubs against both sides of the pulley groove (Figure 60). 4. Adjust the nut at the end of the blade brake rod until there is 3 mm to 5 mm (1/8 to 3/16 inch) between the nut and the spacer (Figure 60). 5.
Replacing the Grass Deflector Storage WARNING 1. Disengage the power take-off (PTO), set the parking brake, and turn the ignition key to the off position. Remove the key. An uncovered discharge opening could allow the lawn mower to throw objects in the operator's or bystander's direction and result in serious injury. Also, contact with the blade could occur. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.
10. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged or worn. 11. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 12. Store the machine in a clean, dry garage or storage area. Remove the key from the ignition switch and keep it in a memorable place. Cover the machine to protect it and keep it clean.
Troubleshooting Problem The engine will not start, starts hard, or fails to keep running. Possible Cause 1. The fuel tank is empty. 1. Fill the fuel tank with gasoline. 2. The fuel-shutoff valve is closed. 3. The choke is not in the correct position. 2. Open the fuel-shutoff valve. 3. Close the choke if the engine is cold; open the choke if the engine is warm. 4. Clean or replace the air-cleaner element. 5. Install the wire on spark plug. 4. The air cleaner is dirty. 5.
Problem The blades do not rotate. Possible Cause Corrective Action 1. The mower deck belt is worn or loose. 1. Check the belt tension. 2. The mower deck belt is broken. 3. The mower deck belt is off pulley. 2. Install a new deck belt. 3. Inspect the belt and replace it if it is damaged. Check the pulleys and idlers and adjust the belt tension. 4. Replace the spring. 4. The idler spring is broken or missing.
Schematics Electrical Schematic (Rev.
Notes: 46
Notes: 47
The Toro Total Coverage Warranty Landscape Contractor Equipment (LCE) A Limited Warranty (see warranty periods below) Conditions and Products Covered Instructions for Obtaining Warranty Service The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to the original purchaser to repair the Toro Products listed below if defective in materials or workmanship.
