Form No. 3371-963 Rev B Commercial Walk-Behind Mower Fixed Deck, T-Bar, Gear Drive with 32in, 36in or 48in Cutting Unit Model No. 30672—Serial No. 312000001 and Up Model No. 30674—Serial No. 312000001 and Up Model No. 30678—Serial No. 312000001 and Up G017538 To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
You may contact Toro directly at www.Toro.com for product and accessory information, help finding a dealer, or to register your product. WARNING CALIFORNIA Proposition 65 Warning The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Contents Servicing the Brakes ........................................... 31 Belt Maintenance.................................................... 32 Checking the Belts.............................................. 32 Replacing the Traction Drive Belt........................ 32 Replacing the Drive Belt ..................................... 32 Replacing the Mower Belt ................................... 33 Adjusting the Mower Belt Tension ...................... 34 Mower Deck Maintenance .....................
Safety – Never remove gas cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke. – Never refuel or drain the machine indoors. • Check that operator's presence controls, safety switches and shields are attached and functioning properly. Do not operate unless they are functioning properly. Note: The addition of attachments made by other manufacturers that do not meet American National Standards Institute certification will cause noncompliance of this machine.
• Slow down and use caution when making turns and crossing roads and sidewalks. Stop blades if not mowing. • Be aware of the mower discharge direction and do not point it at anyone. • Do not operate the mower 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. This product is capable of amputating hands and feet and throwing objects.
• Use only genuine replacement parts to ensure that original standards are maintained. • Check brake operation frequently. Adjust and service as required.
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 Models with 48 Inch 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.
Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. Filling the Fuel Tank 1. Shut the engine off and set the parking brake. 2.
7. To start a warm engine, move the throttle control to the fast position. 5. Pull wire off spark plug(s) to prevent possibility of accidental starting before storing or performing maintenance on the machine. 8. Pull the choke knob if the engine is cold (Figure 8). 6. Close the fuel shut off valve before storing or transporting the machine. Note: A warm or hot engine usually does not require any choking.
when the blade control bail is released with the blade control lever engaged. throttle control in the fast position for best mowing performance. Note: It is necessary to fully and manually disengage the blade control lever. Driving Forward The Safety Interlock System 1. To go forward, move the shift lever to a forward gear (Figure 10). 2. Release the parking brake; refer to Releasing the Parking Brake. CAUTION 3. Slowly press on the upper control bar to move forward (Figure 10).
Driving Backward Up a Curb WARNING 1. Disengage the mower blades. 2. Select reverse to drive the machine. 3. Drive the machine until drive wheels contact curb (Figure 11). A blade can be bent or damaged when driving up a curb. Pieces of blade that may be thrown could seriously injure or kill you or bystanders. Do not run blades while driving up a curb forward or backward. Note: Both drive wheels should contact the curb and caster wheels straight. 4.
Position A necessary lighting and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets or bystanders avoid injury. This is the full rear position (see Figure 14). The suggested use for this position is a follows. • Use for short, light grass mowing conditions. • Use in dry conditions. • For smaller grass clippings. • Propels grass clippings farther away from the mower. To transport the machine: 1.
• Use in wet conditions. caster spacers. Use the Height-of-Cut Chart to select the combination of adjustments required. • Lowers the engine power consumption. • Allows increased ground speed in heavy conditions. Adjusting the Blade Height Adjust the blades by using the 4 spacers (1/4 inch) (6 mm) on the blade spindle bolts. This allows for a 1-inch (25 mm) adjustment range, in 1/4 inch (6 mm) increments, of cutting height in any axle position.
5. Install the bolt and curved washer, add extra spacer(s), and secure them with a thin washer and a nut (Figure 17). 6. Torque the blade bolt to 75-80 ft-lb (101-108 N-m). 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.
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. 1 to 1-1/4 inches (25-32 mm) gap 4. Upper control bar 2.
Height of Cut Chart Number of spacers below caster Number of 1/4 inch blade spacers below spindle 1/2 inch (13mm) 3/16 inch (5 mm) 4 3 2 1 0 A 0 0 1 inch (26 mm) 1–1/4 inch (32 mm) 1–1/2 inch (38 mm) 1–3/4 inch (45 mm) 2 inch (51 mm) A 0 1 1–1/8 inch (29 mm) 1–3/8 inch (35 mm) 1–5/8 inch (41 mm) 1–7/8 inch (48 mm) 2–1/8 inch (54 mm) A 1 0 1–3/8 inch (35 mm) 1–5/8 inch (41 mm) 1–7/8 inch (48 mm) 2–1/8 inch (54 mm) 2–3/8 inch (60 mm) B 0 1 1–3/8 inch (35 mm) 1–5/8 inch (41
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). Greasing the Mower Belt Idler 4. Connect a grease gun to the fitting.
Engine Maintenance Servicing the Air Cleaner Service Interval/Specification Service Interval: Every 25 hours—Clean foam air cleaner element. Every 50 hours—Check the paper air cleaner element. Every 200 hours—Replace the paper air cleaner element. Note: Service the air cleaner more frequently (every few operating hours) if the operating conditions are extremely dusty or sandy. Figure 27 1. Cover 3. Paper element 2. Hose clamp 4. Foam element Important: Do not oil the foam or paper element.
Servicing the Engine Oil Service Interval/Specification Service Interval: Before each use or daily—Check the engine oil level. After the first 8 hours—Change the engine oil. Every 100 hours—Change the engine oil. Figure 29 1. Oil dipstick Every 200 hours—Change the oil filter. 2. Filler tube Note: Change the oil more frequently when the operating conditions are extremely dusty or sandy. 5. Unscrew the oil dipstick and wipe the end clean (Figure 29).
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. Fill the crankcase with the proper type of new oil; refer to Servicing the Engine Oil. 6. Run the engine for about 3 minutes, stop the engine, and check for oil leaks around the oil filter and drain valve. 7. Check the engine oil level and add oil if needed. 8. Wipe up any spilled oil.
Fuel System Maintenance 4. Clean around the spark plugs to prevent dirt from falling into the engine and potentially causing damage. 5. Remove the spark plugs and the metal washers. Servicing the Fuel Tank Checking the Spark Plugs DANGER 1. Look at the center of the spark plugs (Figure 33). If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means that the air cleaner is dirty.
Figure 34 1. Fuel shut-off valve 2. Clamp Figure 35 1. Hose clamp Servicing the Fuel Filter 3. Filter 2. Fuel line Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. 5. Remove the filter from the fuel lines. Replacing the Fuel Filter 6. Install a new filter and move the hose clamps close to the filter. Never install a dirty filter if it is removed from the fuel line. 7. Open fuel shut-off valve at fuel tank (Figure 34).
Drive System Maintenance Checking the Tire Pressure Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Figure 37). Maintain the air pressure in the rear tires at 12-14 psi (83-97 kPa). Uneven tire pressure can cause an uneven cut. Note: The front tires are semi-pneumatic tires and do not require air pressure maintenance. g014686 1 2 Figure 36 1. Fuel vent filter 2.
Cooling System Maintenance Brake Maintenance Cleaning the Air Intake Screen Before each use, check brakes on both a level surface and slope. Servicing the Brakes 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. This will help insure adequate cooling and correct engine speed and will reduce the possibility of overheating and mechanical damage to the engine.
Belt Maintenance Checking the Belts Service Interval: Every 50 hours/Monthly (whichever comes first) 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 39 1. Brake rod 2. Wing nut 1. Remove hairpin cotter securing brake rod to brake arm to relax belt idler tension (Figure 40). Note: Control bar should be parallel with the reference bar when properly adjusted. 2.
6. Install the idler pulley. 3. Raise the rear of the machine and hold it up with jack stands. 7. Engage the blade control (PTO) lever and check the belt tension. Refer to Adjusting the Mower Belt Tension. 4. Remove the mower belt; refer to Replacing the Mower Belt (Figure 41). Note: The proper mower belt tension is 10-15 lbf. (44-67 N) with the belt deflected 1/2 inch (13 mm) halfway between the pulleys (Figure 45 or Figure 46). 8. Engage the blade control (PTO) lever. 9.
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. Figure 43 32in and 36in Mower Deck Important: The belt must be tight enough to not slip during heavy loads while cutting grass.
Figure 45 32in and 36in Mower Deck 1. Mower belt with 1/2 inch (13mm) deflection Figure 46 48in Mower Deck 2. Idler pulley 1. Mower belt with 1/2 inch (13mm) deflection 6. Tighten the locknut on the turnbuckle. 7. Check the blade brake adjustment; refer to Adjusting the Blade Brake. 2. Idler pulley Note: The eyebolt threads on both ends of the turnbuckle should be engaged a minimum of 5/16 inch (8 mm).
Adjusting the PTO Engagement Linkage 6. If there is no adjustment left in the turnbuckle and the belt is still loose, the rear idler pulley needs to be positioned to the middle or front hole (Figure 48). Use the hole that will give the correct adjustment. The PTO engagement linkage adjustment is located beneath the front left hand corner of the engine deck. 7. When the idler pulley is moved the belt guide must be moved. Move the belt guide to the front position (Figure 48). 1.
2 1 3 g017650 Figure 52 1. Bellcrank g017649 2. Screws Figure 51 1. Nut 2. Front assist arm stop 5. Assist arm link 6. Yoke 3. Rear assist arm stop 7. Assist arm 4. Turnbuckle 8. To adjust the assist arm link, remove the hairpin cotter pin from the assist arm (Figure 51). 9. Remove the assist arm link from the assist arm and rotate the link to adjust the length. 10. Install the assist arm link into the assist arm and secure it with the hairpin cotter pin (Figure 51). 11.
Mower Deck Maintenance Checking for Bent Blades 1. Rotate the blades until the ends face forward and backward (Figure 54). Servicing the Cutting Blades 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. WARNING 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.
Sharpening the Blades WARNING 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. 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.
6 4. Adjust the nut at the end of the blade brake rod until there is 1/8-3/16 inch (3 mm -5 mm) between the nut and spacer (Figure 60). 2 4 7 5. Engage the blades. Ensure the blade brake pad no longer contacts the pulley groove. 3 1 5 g015594 Figure 61 1. Bolt 5. Spring installed 2. Spacer 6. Grass Deflector 3. Locknut 7. J hook end of spring 4. Spring Figure 60 1. Spring mounting bolts 2. Place the spacer and spring onto the grass deflector.
Storage 11. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to off. Remove the key. 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. 2.
Troubleshooting Problem Engine will not start, starts hard, or fails to keep running. Possible Cause 1. Fuel tank is empty. 1. Fill the fuel tank with gasoline. 2. Fuel shut off valve is closed. 3. Choke is not on. 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 on spark plug. 4. Air cleaner is dirty. 5. Spark plug wire is loose or disconnected. 6. Spark plug is pitted, fouled, or the gap is incorrect. 7.
Problem Blades do not rotate. Possible Cause Corrective Action 1. Mower deck belt is worn or loose. 1. Check the belt tension. 2. Mower deck belt is broken. 3. 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. Broken or missing idler spring.
Schematics Electrical Schematic (Rev.
Notes: 45
Notes: 46
Notes: 47
The Toro Total Coverage Warranty A Limited Warranty (see warranty periods below) Conditions and Products Covered 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. The following time periods apply from the date of purchase by the original owner: Products 21 in.
