MMX-650E-S and MMX-850E-S Mortar Mixers

Check with your local county or state towing safety regulations before towing the machine.

• In order to reduce the possibility of an accident while transporting the machine on public roads, make sure the towing vehicle is mechanically sound and in good operating condition.

• Turn off the motor before transporting the machine.

• When towing with a ball hitch, ensure that the ball hitch you are using is the proper size for the hitch coupler on the machine.

• When towing with a pintle hitch, ensure that the eye of the tow pole is the correct dimension for the pintle hook.

• Inspect the hitch and coupling for wear. Never tow the machine with damaged or defective hitches, couplings, chains, or other components.

• Check the tire air pressure on the towing vehicle and the machine.

• Check the tire tread and sidewall for damage and wear.

• Properly attach the safety chains to the towing vehicle.

• Ensure that the directional and brake lights are working properly (if the machine is equipped with the light kit).

• Ensure that the directional, backup, and brake lights of the tow vehicle are working properly.

• Before towing, check to make certain your machine is correctly and securely attached to the towing vehicle.

• Ensure that the safety chains are properly secured to the vehicle, and leave enough slack for turning.

• Do not carry any material in the machine when towing.

• Avoid sudden stops and starts. This can cause skidding, or jackknifing. Smooth, gradual starts and stops will improve towing.

• Avoid sharp turns to prevent rolling. Tow only with a vehicle that has a hitch designed for towing. Do not attach towed equipment except at the hitch point.

• Do not tow the machine faster than 88 km/h (55 mph).

• Use caution when backing up; use a spotter outside the vehicle to guide you.

• Do not allow anyone to sit or ride on the machine.

Become familiar with the safe operation of the equipment, operator controls, and safety signs.

• Use only accessories and attachments approved by the manufacturer.

• Wear personal protective equipment and appropriate clothing including:

  • Hard hat

  • Respirator or dust mask

  • Face shield

  • Safety glasses

  • Hearing protection

  • Safety shoes

  • Long pants

  • Shirt with long sleeves that are tight at the wrists

  • Tight-fitting gloves without drawstrings or loose cuffs

• Secure long hair, loose clothing, or jewelry that may get tangled in moving parts.

• Operating the equipment safely requires the full attention of the operator. Do not wear radio or music headphones while operating the machine.

• Ensure that the machine is on a level surface before operating the machine.

• Chock the tires of the machine to prevent unintended movement.

• Before every use:

  • Inspect the coupler, ball, and hitch.

  • Ensure that all lights are functioning properly (if the machine is equipped with a light kit).

  • Ensure that the tires are properly inflated as recommended.

  • Ensure that the lug nuts are tight and torqued properly.

  • Ensure that the machine is properly secured.

• Never run the machine in a poorly ventilated or enclosed area without proper respiratory protection. Dust from materials being mixed can be very harmful to operators and bystanders.

• Only operate the machine in good lighting conditions.

• Before starting the machine, make sure that there are no persons or obstacles near or under the machine.

• Never leave a running machine unattended. Always stop the motor and verify that all moving parts have stopped.

• Chock the tires when using the machine.

• When not using the machine, chock the tires or keep it attached to the tow vehicle.

• Keep hands away from any moving parts. Keep feet away from the tires and the front post.

• Do not operate the machine outdoors in the rain.

• Do not operate the machine under the influence of alcohol or drugs.

• Ensure that the area is clear of other people or pets before operating the machine. Stop the machine if anyone enters the area.

• Never place your hands or any solid object into the drum when the machine is in operation.

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

• Never move the machine while the motor is running.

• Keep the cowl closed and latched during operation.

• Ensure that all the guards and shields are securely in place before operating the machine.

• Ensure that the ON/OFF switch is in the OFF position before connecting the machine to the electrical source.

• If the mixing paddles strike a foreign object or if the machine should start making an unusual noise or vibration, stop the motor and empty the drum. Wait for all moving parts to come to a complete stop and cool. Vibration is generally a warning of trouble. Inspect for clogging or damage. Clean and repair and/or replace damaged parts.

• Lightning can cause severe injury or death. If you see lightning or hear thunder in the area, do not operate the machine; seek shelter.

• Before performing maintenance, do the following:

  • Park the machine on level ground.

  • Stop the motor. Wait for all movement to stop before adjusting, cleaning, or repairing.

  • Let the motor cool before performing maintenance or storing the machine.

  • Unplug the machine before making any repairs.

• Never lubricate, service, repair, or adjust the machine while it is running.

• Keep equipment materials clear from the motor.

• Never allow untrained personnel to service the machine.

• Keep hands, feet, and clothing away from moving parts. If possible, do not make adjustments with the motor running.

• Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.

• Remove any buildup of grease, oil, or debris from the machine.

• Do not modify the electrical connectors or wiring.

• Do not connect the ground circuit of the machine to the energized circuit of the electrical source.

• Do not tamper with safety devices.

• Chock the tires when storing the machine.

• Keep all nuts, bolts, screws, and hose clamps securely tightened. Keep equipment in good condition.

• To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty..

1. Cut the cable ties to remove the dump handle from the underside of the grate.

2. Position the dump handle so that the bolt holes align with the bolt holes in the drum (Figure 3).

   

   Figure 3

3. Insert 1 carriage bolt into the square bolt hole and slide the corresponding hole of the drum handle over it(Figure 3).

4. Install a nut onto the bolt, and tighten it.

5. Repeat the previous steps for the remaining carriage bolt.

Note: The tow pole is purchased separately and includes the nut and bolt needed for installation.

The machine has the following tow pole options:

1. Remove the bolt and nut from the tow pole (Figure 4).

   

   Figure 4

   1. Tow pole
   2. Front post
   3. Bolt
   4. Bolt hole
   5. Frame fitting
   6. Nut

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).

4. Thread the nut onto the bolt and tighten them until they are tight against the frame fitting (Figure 4).

   Note: If the self-locking nylon insert in the locknut wears with use, replace the nut with a new Grade 5 or Grade 8 locknut.

Note: The safety chain is part of the optional tow pole kit.

1. Form a hook on the end of a bendable piece of rod or stiff wire (not included), and insert it through both keyholes in the front post of the machine (Figure 5A).

   

   Figure 5

   1. Keyhole
   2. Rod or wire (not included)
   3. Safety chain
   4. Connecting link

2. Attach the safety chain to the length of rod or wire (Figure 5A).

3. Pull the rod, or wire, and the safety chain through both keyholes (Figure 5B).

   Note: Ensure that approximately equal lengths of safety chain extend from either side of the front post.

Note: The connecting links are part of the optional tow pole kit.

1. Align the connecting link to the last link in one end of the safety chain (Figure 5D).

2. Insert the connecting link through the chain link until the connecting link snaps closed.

3. Repeat steps 1 and 2 to install the other connecting link in the other end of the safety chain.

The DOT tire information is located on the side of each tire. This information gives load and speed ratings. Replacement tires should have the same or better ratings. For more information go to http://www.nhtsa.gov/Vehicle+Safety/Tires.

Note: The various machines in this manual have different weights; refer to Specifications to ensure that the tires on your machine meet or exceed the weight requirements of your machine.

1. Visually inspect the tires for damage and wear (Figure 14 and Figure 15).

   

   Figure 14

   1. Example of tire wear caused by underinflation
   

   Figure 15

   1. Example of tire wear caused by overinflation

2. Ensure that the tires are inflated to the correct air pressure. The following Tire Air Pressure table shows the appropriate air pressure for the tires as installed at the factory.

   Important: Always check the information on the actual tires for the correct air pressure requirement.

   Important: The most common cause of tire trouble is under-inflation. Maintain full air pressure.

   Tire Air Pressure

   Model	Tire pressure
   68012	Max 414 kPa (60 psi)
   68018, 68019	Max 241 kPa (35 psi)

3. Ensure that the wheel lug nuts are torqued to 108 to 122 N-m (80 to 90 ft-lb).

   Note: Check the torque of the wheel lug nuts initially and after towing.

   Note: Torque the lug nuts in the sequence shown in Figure 16.

   

   Figure 16

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.

2. Open the coupler latch (Figure 17).

   

   Figure 17

   1. Bail
   2. Safety pin

3. Position the coupler on top of the hitch ball (Figure 17).

4. Close the coupler latch (Figure 17).

5. Open the bail on the safety pin and insert the pin through the hole in the latch (Figure 17).

6. Rotate the free end of the bail over the end of the safety pin that is protruding through the latch (Figure 17).

7. If the machine is equipped with a trailer-light kit, connect the wire plug of the tow vehicle to the wire plug of the machine.

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.

   

   Figure 18

   1. Coupler handle
   2. Coupler
   3. Clamp
   4. Bolt
   5. Hitch ball

2. Apply chassis grease to the socket of the coupler and the area of the clamp that contacts the ball.

3. Push the coupler bolt up through the coupler clamp and the coupler top, and connect the coupler handle to the bolt (Figure 18).

4. Position the coupler so the socket is on top of the hitch ball and the clamp is under the ball.

5. Turn the coupler handle clockwise to thread it onto the bolt until it is secure (Figure 18).

   Note: Use a wrench to keep the bolt from spinning.

6. If the machine is equipped with a trailer-light kit, connect the wire plug of the tow vehicle to the wire plug of the machine.

1. Remove the pin from the pintle hitch and open it (Figure 19).

   

   Figure 19

2. Position the ring on the tow pole onto the hook of the pintle hitch (Figure 19).

3. Close the top of the pintle hitch and secure it with the pin (Figure 19).

4. If the machine is equipped with a trailer-light kit, connect the wire plug of the tow vehicle to the wire plug of the machine.

Connect the safety chain to the machine and the tow vehicle as follows:

1. Pull the safety chain through the slots in the keyholes located in the front post of the machine, so that there is just enough slack on each side for turning around corners when towing the machine (Figure 20).

   Note: Stow the excess chain inside the bottom of the front post by pushing it into the keyholes and latching the appropriate links into the keyhole slots.

2. Cross both lengths of chain under the tow pole.

   Note: Crossing the chains decreases the chances of the front of the machine dropping to the ground if the hitch does not hold the connection.

   

   Figure 20

   1. Connecting links
   2. Keyholes in front post
   3. Chain crossed under tow pole

3. Connect each length of chain to the safety chain mounting point on the tow vehicle with the connecting links (Figure 21).

   

   Figure 21

   1. Connecting link
   2. Safety chain mounting point on tow vehicle
   3. Chain link

1. Move the machine to a level job-site surface.

2. Disconnect the machine from the tow vehicle.

3. Chock the tires.

4. Ensure that the drum is empty and in the mix position (upright).

5. Ensure that the drum latch is engaged and that the drum does not rotate toward the dump position.

1. Align a jack with an adequate lift height and weight capacity under the axle; refer to Specifications.

2. Lift the machine until the tires are off the ground.

3. Use a jack stand at each support point on the rear frame extension (Figure 22).

   

   Figure 22

   1. Support point (2)

4. Remove the bolts and nuts that secure the inner axle to the outer axle (Figure 23).

   

   Figure 23

   1. Wide position (towing)
   2. Narrow position
   3. Nut (wide position)
   4. Nut (narrow position)
   5. Bolt (wide position)
   6. Bolt (narrow position)

5. Align the inner axle to the desired position as follows:

   • Slide each side of the axle inward to the narrow position (Figure 23).

   • Slide each side of the axle outward to the wide (tow) position (Figure 23).

6. Align the holes of the inner axle with the holes of the outer axle.

7. Insert the bolts through the axle holes (Figure 23).

8. Thread the nuts onto the bolts, and torque the nuts to 87 N-m (64 ft-lb).

1. At the side of the machine where the front cowl and rear cowl meet, grasp the latch and pull it off from the latch anchor on the rear cowl (Figure 24).

   

   Figure 24

   1. Latch
   2. Latch anchor
   3. Receiver
   4. V-fitting

2. Repeat step 1 on the opposite side of the machine.

3. At the back of the machine where the rear cowl meets the frame of the machine, grasp the latch and pull it off from the latch anchor on the cowl (Figure 24).

4. Rotate the rear cowl up and forward until it is fully positioned on top of the front cowl (Figure 24).

1. Rotate the rear cowl rearward and down until the receiver at the bottom center of the cowl is aligned with the V-fitting and flush on the frame of the machine (Figure 24).

2. At the back of the machine, grasp the latch and pull it onto the latch anchor on the rear cowl.

3. At the side of the machine, grasp the latch and pull it onto the latch anchor on the rear cowl.

4. Repeat step 3 at the opposite side of the machine (Figure 24).

The machine can operate with a 115 V or 230 V supply voltage. The voltage block determines the operating voltage of the machine (Figure 10). Use the following steps to change the operating voltage:

1. Park the machine on level ground.

2. Stop the motor and unplug the machine.

3. Remove the 2 screws securing the voltage block to the motor.

4. Remove the voltage block from the motor, rotate the voltage block 180 degrees and plug it back into the motor.

5. Secure the voltage plug to the motor with the 2 screws that you previously removed.

Note: Use the instructions on the voltage block to determine the voltage block setting.

Important: Check the extension cord frequently during use for holes or cracks in the insulation. Do not use a damaged cord. Do not run the cord through standing water or wet grass.

Important: Use only extension cords with terminals and sockets for the live, neutral, and ground wires.

Important: Connect the machine to only a receptacle with live, neutral, and ground connections.

Important: The connecting wires or extension cord should be as short as possible and in 1 piece.

To reduce the risk of electric shock, this machine has a polarized plug (unique blade shapes and widths). Use only a polarized plug and socket that is compliant with NEMA specifications and an extension cord that is UL-listed (CSA certified in Canada) and recommended for outdoor use. A polarized plug will fit in a polarized cord only 1 way. If the plug does not fit fully into the cord, turn the cord. If it still does not fit, purchase an appropriate extension cord. If you have a polarized extension cord and the extension cord plug does not fit fully into the wall receptacle, turn the plug. If it still does not fit, contact a qualified electrician to install the proper outlet. Do not change the machine plug or extension-cord plug in any way.

Note: The machine uses a twist-locking plug.

Extension Cords

Note: Do not use an extension cord over 30.4 m (100 ft) long.

When using a portable generator as an electrical source, ensure the following power output specifications:

The electrical motor for the machine is equipped with a device for thermal-overload protection. In the event that the motor shuts down automatically, reset the thermal-overload protector as follows:

1. Move the ON/OFF switch to the OFF position; refer to Figure 12.

2. Disconnect the electrical plug for the machine from the power source (Figure 25).

   

   Figure 25

   1. Thermal-overload protector reset button
   2. ON/OFF switch
   3. Electrical plug

3. Allow the electric motor of the machine to cool until it is warm to the touch or cooler.

   Important: Ensure that the paddles spin freely. Check for stone, masonry, or concrete material between the paddles and the drum.

4. On the side of the junction box for the motor, press the reset button for the thermal-overload protector (Figure 25).

5. Connect the electrical plug for the machine to the power source.

6. Rotate the ON/OFF switch to the ON position and ensure that the motor starts normally.

7. Rotate the ON/OFF switch to the OFF position.

1. Plug the power cord into a proper electrical outlet.

2. Switch the ON/OFF switch to the ON position.

3. Move the clutch lever to the ON position; refer to Controlling the Paddles

1. Move the clutch lever to the OFF position; refer to Controlling the Paddles.

2. Switch the ON/OFF switch to the OFF position; refer to Motor On/Off Switch.

3. Unplug the power cord.

Move the clutch lever clockwise to engage the clutch, and counterclockwise to disengage the clutch (Figure 26).

Figure 26

1. OFF position
2. ON position

1. Ensure that there is no old, loose material in the drum that can contaminate the batch of material; refer to Cleaning the Drum and Dumping the Drum, then return the drum to the upright position.

   Note: Ensure that the drum is in the mix position (upright) and the drum latch is engaged.

2. Move the clutch lever to the OFF position; refer to Controlling the Paddles.

3. Start the motor; refer to Starting the Motor.

4. Move the clutch lever to the ON position; refer to Controlling the Paddles.

5. Add the ingredients for the batch as follows:

   1. Pour water into the drum through the grating of the drum guard.

   2. Add the plaster, cement, or other binding material.

      Note: You can open bags of cement, plaster, and binding materials by lowering the bag onto the bag splitter (Figure 27).

      

      Figure 27

   3. If you are using sand and/or other reinforcing materials, add them into the drum.

6. Allow the paddles to mix the material until the ingredients have a uniform appearance.

   Note: If needed, add water or plaster, cement, or other binding material until the consistency of the batch is correct.

7. Release the drum latch and dump the drum; refer to Dumping the Drum.

Note: When dumping a batch of material, leave the motor running and the clutch in the ON position so the rotating paddles help discharge the material.

1. Align a wheelbarrow or similar container of adequate capacity in the path of the drum opening.

2. Grasp the dump handle with your left hand (Figure 28).

   

   Figure 28

   1. Dump handle (mix position)
   2. Drum latch (release position)
   3. Drum latch (locked position)
   4. Dump handle (dump position)

   Note: When dumping a batch of material, align a wheelbarrow or a similar container of adequate capacity beneath the chute.

3. Lift the handle of the drum latch (Figure 28).

4. With both hands on the dump handle, rotate it counterclockwise to discharge the contents of the drum (Figure 28).

   Note: Allow the machine to completely discharge the contents of the drum.

5. Rotate the dump handle clockwise until the drum latch locks the drum in the upright position (Figure 28).

6. After discharging a batch of material, clean the drum; refer to Cleaning the Drum.

   Note: This step will clean the paddles and drum between batches and prevent dried material from forming, and contaminating the next batch of material.

Important: Do not strike on the drum with a shovel, hammer, or any other device to loosen any accumulated dried materials.

1. Stop the rotation of the paddles by moving the clutch lever to the OFF position; refer to Controlling the Paddles.

2. Move the motor ON/OFF switch to the OFF position; refer to Motor On/Off Switch.

3. Ensure that the drum is in the mix position (upright); refer to Dumping the Drum, step 5.

4. Spray the machine with water to remove any accumulated material.

5. Start the motor; refer to Starting the Motor.

6. Start the rotation of the paddles by moving the clutch lever to the ON position; refer to Controlling the Paddles.

7. Dump the drum; refer to Dumping the Drum.

1. Park the machine on a level surface.

2. Remove the machine from the tow vehicle.

3. Chock the tires.

4. Open the rear cowl; refer to Opening the Cowl.

5. Turn off and unplug the motor; refer to Stopping the Motor.

6. Ensure that the motor is cool.

You need to remove the divider plate to provide access before performing some maintenance procedures.

Note: The pillow-block bearings are inside the cowl—remove the divider plate to access them; refer to Removing the Divider Plate.

Grease type: #2 general-purpose lithium-based grease.

1. Clean around each grease fitting with a rag and lift the plastic cap off the grease fitting (Figure 31).

   

   Figure 31

   1. Pillow-block bearings
   2. Rear trunnion
   3. Front trunnion

2. Pump grease into each fitting as follows:

   • For the pillow-block bearings, pump 1 shot of grease into each fitting (Figure 31).

   • For the trunnions, pump several shots of grease into each fitting until it starts to ooze out of the bearing housing (Figure 31).

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

3. Wipe up any excess grease.

Grease type: electric-motor bearing grease

1. Clean around each grease fitting with a rag.

2. Pump 1 or 2 shots of grease into each fitting (Figure 32).

   Important: Do not over-lubricate the motor.

   

   Figure 32

3. Wipe up any excess grease.

Apply a chain lubricant that is non-sticky to help prevent dirt and abrasive particles from sticking to the chain.

Figure 33

1. Drive chain

1. Remove the divider plate; refer to Removing the Divider Plate.

2. Place a straightedge across the face of the motor pulley and the idler pulley (Figure 40).

   

   Figure 40

   1. Motor pulley
   2. Idler pulley
   3. Straightedge
   4. Idler shaft
   5. Locknut
   6. Setscrew

   Note: Both pulleys must be aligned flush with the straightedge.

3. If the pulleys are not aligned do the following:

   1. Move the clutch lever to the OFF position.

   2. Loosen the locknuts and setscrews that secure the idler pulley to the idler shaft (Figure 40).

   3. Using a soft-face mallet, tap the idler pulley forward or backward along the idler shaft until the motor pulley and the idler pulley are aligned to the straightedge (Figure 40).

   4. Tighten the setscrews and locknuts that secure the idler pulley to the idler shaft (Figure 40).

4. Install the divider plate; refer to Installing the Divider Plate.

The drive chain should have 5 to 10 mm (7/32 to 13/32 inch) of flex when applying 6.8 kg (15 lb) of pressure at mid-span.

Regular cleaning and washing will increase the life span of the machine. Clean the machine after each use, before the dirt hardens.

Ensure that the motor is unplugged.

Use care when using a high-pressure sprayer because it can damage warning decals, instruction signs, and the motor.

Important: Use pressure sprayers to clean only the drum of the machine. Clean off the rest of the machine by hand to keep the motor from getting wet.

Important: Lubricate the trunnions after cleaning; refer to Lubricating the Bearings and Seals.