Form No. 3377-527 Rev B MMX-1158H-S Mortar Mixer Model No. 68023C—Serial No. 313000001 and Up G021 119 Register at www.Toro.com.
1-800-424-9153); go to http://www.safercar.gov; or write to: Administrator, NHTSA, 1200 New Jersey Avenue, SE West Building, Washington, DC 20590. You can also obtain other information about motor vehicle safety from http://www.safercar.gov. WARNING CALIFORNIA Proposition 65 Warning • To contact Transport Canada, you may call This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.
Contents 1 2 Introduction .................................................................. 2 Safety ........................................................................... 4 Safe Operating Practices........................................... 4 Safety and Instructional Decals ................................. 7 Setup ............................................................................ 8 1 Installing the Dump Handle ................................... 8 2 Installing the Tow Pole .............
Safety • Never let children or untrained people operate or service Improperly using or maintaining the machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol , which means: Caution, Warning, or Danger—personal safety instruction. Failure to comply with the instruction may result in personal injury or death. • the equipment. Local regulations may restrict the age of the operator.
Preparation – Ensure that the lug nuts are tight and torqued properly. Become familiar with the safe operation of the equipment, operator controls, and safety signs. • Use only accessories and attachments approved by the manufacturer.
Maintenance and Storage • Before performing maintenance, do the following: – Park the machine on level ground. – Stop the engine. Wait for all movement to stop before adjusting, cleaning, or repairing. – Let the engine cool before performing maintenance or storing. – Remove the spark-plug wire before making any repairs. – Disengage all power and operation controls. • Never lubricate, service, repair, or adjust the machine while it is running.
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. 117–2718 125–8175 1. Read the Operator’s Manual for information on greasing the machine. 125–4939 4. Toxic gas inhalation hazard—Don’t run the engine in an enclosed space. 2.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Use Qty. 1 Dump handle Bolt Nut 1 2 2 Install the dump handle. 2 Tow pole kit (sold separately) 1 Install the tow pole. 3 Safety chain (included with the tow pole kit) Connecting link (included with the tow pole kit) 2 Installing the Dump Handle Parts needed for this procedure: Dump handle 2 Bolt 2 Nut Install the safety chain. 2 5.
2 1 3 A B 1 2 3 4 5 C D 6 4 G019804 Figure 4 1. Tow pole 4. Bolt hole 2. Front post 5. Frame fitting 3. Bolt 6. Nut 3 g019883 Figure 5 2. Slide the tow pole forward and align the hole in the pole with the hole in the frame fitting (Figure 4). 3. Insert the bolt through the holes in the fitting and the pole (Figure 4). Note: Ensure that approximately equal lengths of safety chain extend from either side of the front post. 3 Installing the Connecting Links 1.
Controls Product Overview 1 2 3 4 Become familiar with all the controls before you start the engine and operate the machine. 5 Clutch Lever 6 The clutch lever (Figure 7) engages and disengages engine power to the paddles. 18 7 8 9 17 10 16 15 14 13 12 11 G021 120 Figure 6 1. Rear cowl 2. Front cowl 3. Grate 7. Clutch lever 8. Drum latch 9. Front post 4. Bag splitter 10. Lighting wire harness 16. Wheel assembly 5. Dump handle 11. Tow pole 17. Trailer light (2) 6. Grate lifter arm 12.
Dump Handle Fuel Valve The dump handle (Figure 9) allows the operator to rotate the drum between the dump position and the mix (upright) position. The fuel valve (Figure 11) is located underneath the choke lever. Move the lever for the fuel valve to the On position before attempting to start the engine. When you have finished mixing, stop the engine and move the fuel valve lever to the Off position. 1 1 G020750 2 Figure 9 1. Dump handle 3 G019815 Figure 11 1. Choke lever 2.
Operation OFF ON Important: Before operating, check the fuel and oil levels, and remove debris from the machine. Ensure that the area is clear of people. OFF ON Preparing to Tow the Machine 1 2 Important: Ensure that your tow vehicle has towing capacity for the weight of the machine. G021 103 Figure 12 1. Off position 2. On position Important: Use a Class 2 or larger receiver.
Checking the Tires and Wheels Air Pressure: Max 241 kPa (35 psi) Service Interval: Before each use or daily—Inspect the tires and wheels. After each use—Torque the lug nuts to 108 to 122 N-m (80 to 90 ft-lb) after towing. Important: Always check the information on the actual tires for the correct air pressure requirement. Important: The most common cause of tire trouble is underinflation. Maintain full air pressure.
Hitching a Machine with a Stamped Ball Coupler Hitching a Machine with a Forged Ball Coupler 1. Apply chassis grease to the socket of the coupler and the area of the clamp that contacts the ball. Oil the pivot points and sliding surfaces of the coupler with SAE 30 motor oil. 1. Apply removable thread-locking compound to the threads of the coupler bolt to prevent the coupler handle from coming loose (Figure 18). Important: Apply thread-locking compound as needed in the future. 2.
Hitching a Machine with a Pintle Hitch Tow Pole Note: Stow the excess chain inside the bottom of the front post by pushing it into the keyholes. 2. Cross both lengths of chain under the tow pole. 1. Remove the pin from the pintle hitch and open it (Figure 19). Note: Crossing the chains decreases the chances of the front of the machine dropping to the ground if the hitch malfunctions. 2 1 3 G021 177 Figure 20 1. Connecting links 3. Chain crossed under tow pole 2. Keyholes in front post 3.
1. Align a jack with an adequate lift height and weight capacity under the axle; refer to Specifications (page 12). 2. Lift the machine until the tires are off the ground. G020828 3. Use a jack stand at each support point on the rear frame extension (Figure 23). Figure 22 Note: The machine uses a standard 4-flat plug. If your tow vehicle has a different type of plug, obtain an adapter from an automotive parts store.
Towing the Machine 4. Ensure that the drum is in the mix position (upright). WARNING 5. Ensure that the drum latch is engaged and that the drum does not rotate toward the dump position. Towing the machine at high speed increases the risk of a hitch malfunction and tire failure. Higher speeds also increase the momentum of the machine and braking distance. If the machine becomes detached from the tow vehicle at high speed, it could cause damage to property, or injury or death to bystanders.
Adding Fuel DANGER • For best results, use only clean, fresh, unleaded gasoline In certain conditions during fueling, static electricity can be released causing a spark which can ignite the fuel vapors. A fire or explosion from fuel can burn you and others and can damage property. with an octane rating of 87 or higher ((R+M)/2 rating method). • Oxygenated fuel with up to 10% ethanol or 15% MTBE by volume is acceptable. • Always place fuel containers on the ground away from your vehicle before filling.
1 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. Filling the Fuel Tank The fuel tank capacity is 5.3 L (1.4 US gallons). 1. Park the machine on a level surface, stop the engine, and allow the engine to cool. 2. Clean around the fuel cap and remove it (Figure 26).
Starting and Stopping the Engine 30 5W - 30 / 10W - 30 0 20 40 -20 -10 0 60 10 80 20 30 Starting the Engine 100 F o 1. Ensure that the clutch lever is in the Off position; refer to Controlling the Paddles (page 21). 2. On the engine, move the throttle lever away from the Min position, 1/3 of the way toward the Max position (Figure 30); refer to Throttle Lever (page 11). 40 C o g013375 Figure 28 1. Place the machine on a flat, level surface, and stop the engine. 2. Allow the engine to cool. 3.
Use the clutch lever to control the power transmission to the paddles of the machine. Using the Clutch Lever Move the clutch lever clockwise to engage the clutch, and counterclockwise to disengage the clutch (Figure 32). G019747 Figure 31 Note: If the choke lever is set to the Closed position to start the engine, gradually move the choke lever back toward the Open position as the engine warms up.
Mixing a Batch of Material in the Machine 8. Release the drum latch and dump the drum; refer to Dumping the Drum (page 22). 1. Ensure that there is no old, loose material in the drum that can contaminate the batch of material; refer to Cleaning the Drum (page 23) and Dumping the Drum (page 22), then return the drum to the upright position. Using the Drum DANGER Note: Ensure that the drum is in the mix position (upright) and the drum latch is engaged. 2.
6. After discharging a batch of material, clean the drum; refer to Cleaning the Drum (page 23). Note: This step will clean the paddles and drum between batches and prevent dried material from forming, and contaminating the next batch of material. Cleaning the Drum Important: Do not strike on the drum with a shovel, hammer, or any other device to loosen any accumulated dried materials. 1.
Maintenance Important: Before performing any maintenance procedures, first stop the engine, wait 5 minutes to allow all moving parts to come to a complete stop and cool, and disconnect the spark-plug wire. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 25 hours • Change the engine oil. • Inspect the belts and adjust as necessary. Before each use or daily • Inspect the tires and wheels. • Check the engine oil level.
Premaintenance Procedures Preparing the Machine for Maintenance 1. Park the machine on a level surface. 2. Remove the machine from the tow vehicle. G020752 3. Chock the tires. Figure 38 4. Open the rear cowl; refer to Opening the Cowl (page 17). 3. To remove the divider plate, lift it upward and rotate it counterclockwise so that it clears various engine components. 5. Ensure that the engine and muffler are cool. 6. Disable the engine; refer to Figure 37.
Lubrication 2. Pump grease into each fitting as follows: • For the pillow-block bearings, pump 1 shot of grease into each fitting (Figure 40). Lubricating the Bearings and Seals • For the trunnions, pump several shots of grease into each fitting until it starts to ooze out of the bearing housing (Figure 40). Service Interval: After each use—Lubricate the trunnions. Important: Pump grease in slowly and carefully to prevent damage to the bearing seals. Monthly—Lubricate the pillow-block bearings.
Engine Maintenance 1 Servicing the Air Cleaner 2 Service Interval: Before each use or daily—Inspect the air-cleaner elements. Every 50 hours—Clean the air-cleaner elements. Clean them more frequently in dusty operating conditions. 3 Every 300 hours/Yearly (whichever comes first)—Replace the paper air-cleaner element. Replace it more frequently in dusty operating conditions. 4 Important: Do not operate the engine without the air-filter assembly; extreme engine damage will occur. 1.
Draining the Engine Oil 10. Rinse and dry the foam element thoroughly. 11. Dip the foam element in clean engine oil, then squeeze out the excess oil. WARNING Oil may be hot after the engine has been run, and contact with hot oil can cause severe personal injury. Note: Excess oil in the foam element restricts the air flow through the element and may reach the paper filter and clog it. 12. Wipe dirt from the base and the cover with a moist rag. Avoid contacting the hot engine oil when you drain it.
1 Removing the Spark Plug 2 3 1. Park the machine on a level surface and turn off the engine; refer to Stopping the Engine (page 21). 2. Ensure that the machine surfaces are cool. 3. Pull the spark-plug wire off the terminal of the spark plug (Figure 45). 4 G019746 Figure 45 Figure 44 1. Oil fill hole 3. Oil-level upper limit 2. Dipstick 4. Oil-level lower limit 1. Spark plug 2. Wire 4. Clean around the spark plug. 5.
Checking the Spark Plug • When installing an in-service spark plug, tighten the plug an additional 1/8 to 1/4 turn. • When installing a new spark plug, tighten the plug an additional 1/2 turn. 4. Push the spark-plug wire onto the terminal of the spark plug (Figure 45). Note: Use a gapping tool/feeler gauge to check and adjust the gap. Install a new spark plug if necessary. 1. Look at the center of the spark plug (Figure 47).
Note: Leave the other end of the spring attached to the frame of the machine. 3. Remove the 3 screws (4 mm) from the exhaust deflector and remove the deflector (Figure 48). 1 4. Remove the screws (5 mm and 6 mm) from the muffler protector, and remove the muffler protector (Figure 48). 3 2 5. Remove the screw (4 mm) from the spark arrester and remove the spark arrester from the muffler (Figure 48). 6. Use a brush to carefully remove carbon deposits from the spark-arrester screen (Figure 49).
Fuel System Maintenance Servicing the Fuel System Cleaning the Sediment Cup Service Interval: Every 100 hours/Every 6 months (whichever comes first)—Clean the sediment cup. Yearly or before storage—Clean the fuel sediment cup. Underneath the fuel valve is a sediment cup to catch dirt in the fuel. 1. Park the machine on a level surface and stop the engine; refer to Stopping the Engine (page 21). 2. Ensure that the engine and the exhaust system surfaces are cool. 3.
Belt Maintenance 10. Move the lever of the fuel valve to the On position (all the way to the right) and check for leaks. If it leaks, replace the O-ring. Servicing the Belts Draining the Fuel Tank Inspecting the Belts 1. Remove the engine; refer to Removing the Engine (page 31). Service Interval: After the first 25 hours—Inspect the belts and adjust as necessary. 2. Remove the fuel cap by rotating it counterclockwise. 1 Every 40 hours—Inspect the belts and adjust as necessary. 2 1.
A. Move the clutch lever to the Off position; refer to Controlling the Paddles (page 21). B. Loosen the nuts and bolts that secure the engine to the engine deck (Figure 56). E. If needed, pivot the engine on the engine deck until the engine pulley and the idler pulley are aligned to the straightedge (Figure 57). F. Tighten the nuts and bolts that secure the engine to the engine deck to a torque of 18 N-m (13 ft-lb). G. Check the air gap between the engine deck and the roller on the clutch.
Adjusting the Belt Guide Note: To access the belt guide, remove the divider plate; refer to Removing the Divider Plate (page 25). 2 1 3 4 Guide air gap: 2.5 to 4.0 mm (3/32 to 5/32 inch) 1. Ensure that the clutch lever is in the On position; refer to Controlling the Paddles (page 21). 2. Ensure that the belt tension is correct; refer to Adjusting the Belt Tension (page 33). 3. Check that the air gap between the belt guide and the belts is 2.5 to 4.0 mm (3/32 to 5/32 inch); refer to Figure 60.
Checking the Clutch Operation Note: Both pulleys must be aligned flush with the straightedge. Service Interval: Every 40 hours—Check the clutch operation. 3. If the pulleys are not aligned do the following: A. Move the clutch lever to the Off position. Important: The paddles must not rotate in an empty drum when the clutch lever is in the Off position. 1. Move the clutch lever to the Off position; refer to Using the Clutch Lever (page 21). B.
Replacing the Light Bulbs 2. Remove the lens (Figure 63). 3. Pull the bulb out of the socket (Figure 63). 4. Push a new 168 bulb into the socket (Figure 63). 5. Install the lens and the 2 screws (Figure 63). Replacing the Rear-facing Bulbs Note: The left rear-facing bulb also illuminates license plate. 1. Use a screwdriver to remove the 4 screws from the large square lens on the light (Figure 62). A B C D E F G020829 Figure 62 2. Remove the lens (Figure 62). 3.
Cleaning Storage Cleaning the Machine Storing the Machine For storage over 30 days, prepare the machine as follows: 1. Remove dirt and grime from the external parts of the entire machine, especially the engine. Clean dirt and debris from the outside of the engine cylinder-head fins and blower housing. Regular cleaning and washing will increase the life span of the machine. Clean the machine after each use, before the dirt hardens.
10. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Toro Dealer. 11. Store the machine in a clean, dry garage or storage area. 12. Cover the machine to protect it and keep it clean.
Troubleshooting Problem The engine will not start. Possible Cause 1. The fuel-valve lever is in the Off position. 1. Move the fuel-valve lever to the On position. 2. The choke is closed 2. Open the choke when starting a hot engine. 3. Close the choke when starting a cold engine. 4. Rotate the switch to the On position. 3. The choke is open. 4. The engine On/Off switch is in the Off position. 5. The engine oil level is low (engines with the oil-level switch). 6. The fuel tank is empty. 7.
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Concrete, Masonry, and Compaction Equipment The Toro 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 warrant your Toro Concrete, Masonry, and Compaction Equipment Products listed below to be free from defects in materials or workmanship. This warranty covers the cost of parts and labor, but you must pay transportation costs.
