Form No. 3377-506 Rev A Commercial Walk-Behind Mower Fixed Deck, T-Bar, Gear Drive with 32in, 36in, or 48in Cutting Unit Model No. 30672—Serial No. 313000001 and Up Model No. 30674—Serial No. 313000001 and Up Model No. 30678—Serial No. 313000001 and Up Model No. 39674—Serial No. 313000001 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 Blade Brake........................................39 Replacing the Grass Deflector ..................................40 Storage ........................................................................40 Troubleshooting ...........................................................42 Schematics ...................................................................
• Never refuel the machine indoors. • Never store the fuel container where there is an open • 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 engine. Only start engine from the operator's position. Be sure of your footing while using this machine, especially when backing up. Walk, don't run. Never operate on wet grass. Reduced footing could cause slipping.
Service Toro Mower Safety • Never store the machine or fuel container inside where The following list contains safety information specific to Toro products and other safety information you must know. there is an open flame, such as near a water heater or furnace. This product is capable of amputating hands and feet and throwing objects. Always follow all safety instructions to avoid serious injury or death. • Keep nuts and bolts tight, especially the blade attachment bolts.
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.
Product Overview G017539 Figure 4 1. Side discharge 5. T-bar control 2. Mower deck 3. Recoil starter 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 Controls Become familiar with all the controls (Figure 5) before you start the engine and operate the machine. 4. Gear shift lever 10. Upper handle 5. Upper control bar 11. Lower handle 6.
Upper Control Bar Specifications 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. Note: Specifications and design are subject to change without notice.
Operation DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. • Always place gasoline containers on the ground away from your vehicle before filling.
Setting the Parking Brake of varnish deposits in the fuel system, use fuel stabilizer at all times. 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). Filling the Fuel Tank 1. Shut the engine off and set the parking brake. 2. Clean around 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.
2. Select first gear to drive the machine. 3. Drive machine until the castor wheels contact curb (Figure 11). 4. Lift the front of the machine by pushing down on the lower handle (Figure 11). 5. Drive the machine until drive wheels contact the curb (Figure 11). 6. Lower the front of the machine (Figure 11). Note: Both drive wheels should contact the curb and caster wheels straight. 7.
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.
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).
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 Figure 18 1. Axle pivot bolt 3. Spacer, 13 mm (1/2 inch) 2. Spacer, 5 mm (3/16 inch) 2. Axle adjustment bolt 2. Remove the latch pin, slide the caster from the support, and change the spacers (Figure 19). 4. Place a jack under the rear center of the engine frame.
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. 25-32 mm (1 to 1-1/4 inches) gap 4. Upper control bar 2.
Height of Cut Chart Number of spacers below caster Number of 1/4 inch blade spacers below spindle 13 mm (1/2 inch ) 5 mm (3/16 inch) 4 A 0 0 26 mm (1 inch) A 0 1 29 mm 35 mm 41 mm 48 mm 54 mm (1–1/8 inch) (1–3/8 inch) (1–5/8 inch) (1–7/8 inch) (2–1/8 inch) A 1 0 35 mm 41 mm 48 mm 54 mm 60 mm (1–3/8 inch) (1–5/8 inch) (1–7/8 inch) (2–1/8 inch) (2–3/8 inch) B 0 1 35 mm 41 mm 48 mm 54 mm 60 mm (1–3/8 inch) (1–5/8 inch) (1–7/8 inch) (2–1/8 inch) (2–3/8 inch) B 1 0 41 mm 48 mm 54 mm 60 mm
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 with No. 2 general purpose lithium base or molybdenum base grease. How to Grease 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 foam air cleaner element. Servicing the Paper Air Cleaner Element Every 50 hours—Check the paper air cleaner element.
Changing the Engine Oil 1. Park the machine so that the drain side is slightly lower than the opposite side to assure 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. When oil has drained completely, close the drain valve.
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 Servicing the Fuel Vent System Service Interval: Every 200 hours/Yearly (whichever comes first) Service Interval: Every 200 hours/Yearly (whichever comes first) Never install a dirty filter if it is removed from the fuel line. 1. Disengage the PTO and set the parking brake. Note: Note how the fuel filter is installed in order to install the new filter correctly. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
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 build-up of grass, dirt or other debris from the cylinder and cylinder head cooling fins, air intake screen on flywheel end, and 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 Checking the Belts Service Interval: Every 50 hours/Monthly (whichever comes first)—Check the belts. Check belts for cracks, frayed edges, burn marks, wear, signs of overheating or any other damage. Replace damaged belts. Replacing the Traction Drive Belt Figure 41 1. Remove hairpin cotter securing brake rod to brake arm to relax belt idler tension (Figure 40). 1. Idler pulley in slot 4. Belt guide 2. Traction belt 5. 19 mm (3/4 inch) 2.
8. Engage the blade control (PTO) lever. 9. Check the clearance between the bell crank and the transmission output shaft (Figure 42). Figure 42 1. 2-3 mm (1/16-1/8 inch) 4. Hairpin cotter 2. Bell crank 5. Clevis pin 3. Transmission output shaft 6. Clevis Figure 43 32in and 36in Mower Deck 1. 13 mm (1/2 inch) deflection 4. Locknut here 2. Assist arm 5. Turnbuckle 3. Front stop Note: The clearance should be 2-3 mm (1/16-1/8 inch). 10.
Adjusting the Mower Belt Tension Adjusting the Tension for 32in and 36in 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. Important: The brake needs to be adjusted when the belt tension or the brake linkage is adjusted. Important: The belt must be tight enough to not slip during heavy loads while cutting grass.
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 48in Mower Deck 1. Mower belt with 13 mm (1/2 inch) deflection Figure 48 2. Idler pulley 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 WARNING 1. Rotate the blades until the ends face forward and backward (Figure 54). A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. • Always replace bent or damaged blade with a new blade. • Never file or create sharp notches in the edges or surfaces of blade. Removing the Blades Replace the blades if you hit a solid object or if the blades are out of balance or bent.
Adjusting the Blade Brake Sharpening the Blades 1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 58). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. 1. Disengage the PTO, turn the ignition key to off, and remove the key. 2. Wait for all moving parts to stop before leaving the operating position and then set the parking brake. 3.
Replacing the Grass Deflector Storage 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to off. Remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine's cylinder head fins and blower housing.
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 shut off valve is closed. 3. The choke is not in the On position. 2. Open the fuel shut off valve. 3. Move the throttle lever to choke position. 4. Clean or replace the air cleaner element. 5. Install the wire(s) on spark plug(s). 4. The air cleaner is dirty. 5. One or both of the spark plug wires are loose or disconnected.
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 if 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: 45
Notes: 46
Notes: 47
The Toro Total Coverage Warranty Landscape Contractor Equipment (LCE) A Limited Warranty (see warranty periods below) Conditions and Products Covered This warranty includes the cost of parts and labor, but you must pay transportation costs. 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.
