Form No. 3418-623 Rev B Greensmaster® Flex™ 1820/2120 Traction Unit Model No. 04044—Serial No. 401381001 and Up Model No. 04045—Serial No. 401400001 and Up Register at www.Toro.com.
This product complies with all relevant European directives; for details, please see the separate product specific Declaration of Conformity (DOC) sheet. 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. g234204 Figure 1 1.
Contents Servicing the Traction-Interlock Switch ...................................................................... 33 Servicing the Brake-Interlock Switch................. 33 Brake Maintenance ............................................. 34 Adjusting the Service/Parking Brake................. 34 Belt Maintenance ................................................ 34 Inspecting the Reel-Drive Belt........................... 34 Visually Inspecting the Reel Clutch ...................
Safety • Keep clear of any discharge opening. Keep This machine has been designed in accordance with EN ISO 5395:2013 and ANSI B71.4-2017. • Keep children out of the operating area. Never bystanders a safe distance away from the machine. allow children to operate the machine. General Safety • Stop the machine and shut off the engine before This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury.
decal120-2769 120-2769 decal120-9598 120-9598 1. Brake 4. Parking brake 2. Release handle to disengage the brake. 5. Rotate the latch to lock the parking brake; compress the handle to release the latch. 3. Compress the handle to engage the brake. 1. Toxic gas inhalation hazard—do not operate indoors. 4. Warning—disconnect the spark plug wire and read the Operator’s Manual before servicing or performing maintenance. 2.
decal133-2335 133-2335 1. Warning—read the Operator’s Manual; do not operate the machine unless you are trained. 2. Warning—wear hearing protection. 3. Thrown object hazard—keep bystanders a safe distance away from the machine. 4. Warning—stay away from moving parts; keep all guards and shields in place. 5. Do not tow the machine. decal115-7274 115-7274 1. Lights (optional) 3. Engine—start 2. Hour meter 4.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 5 6 7 8 Description Use Qty. No parts required – Prepare the traction unit (optional). Bolt (3/8 x 3/4 inch) 2 Install the cutting unit to the traction unit. Handle retainer Hairpin cotter 2 2 Install the handle retainers. Transport wheels—Transport Wheel Kit (Model No. 04123 [Optional]) 2 Install the transport wheels. No parts required – Check the engine-oil level.
1 2 Preparing the Traction Unit Installing the Cutting Unit to the Traction Unit Optional—Cutting Unit Models 04251, 02452, 04253, or 04254 Parts needed for this procedure: 2 No Parts Required Bolt (3/8 x 3/4 inch) Procedure Procedure If you are installing cutting unit Models 04251, 02452, 04253, or 04254 on this traction unit, complete the following steps: Note: To install the weight rod onto your machine, refer to the installation instructions in your cutting unit Operator’s Manual. 1.
3 Installing the Handle Retainers Parts needed for this procedure: g000483 2 Handle retainer 2 Hairpin cotter Figure 6 1. Transmission coupling 4. Procedure 1. Maneuver the machine frame forward until it engages the cutting unit pivot arms Figure 7. While supporting the handle, remove the cable ties that secure the handle clamps to the side plates (Figure 8). g032418 Figure 7 1. Telescoping coupler 3. Bolt 2. Cutting-unit hex shaft 5. 6. 7.
4 Installing the Transport Wheels Optional Parts needed for this procedure: 2 Transport wheels—Transport Wheel Kit (Model No. 04123 [Optional]) Procedure 1. g000475 Use your foot to push the center of the kickstand down and pull up on the lower handle support until the kickstand has rotated forward and over center (Figure 9). Figure 10 1. Locking clip g016833 3. Rotate the wheel back and forth until it fits onto the axle and the locking clip is secured in the groove on the axle shaft. 4.
6 Installing the Production-Year Decal CE Machines Only Parts needed for this procedure: g032407 1 Production-year decal Figure 12 1. Basket hooks Procedure 3. If you use this machine in a country that complies to CE standards, apply the production-year decal near the serial plate; refer to Figure 11. Install the basket hooks over the frame loop (Figure 12). Important: If you ever drop the basket, examine the pitch-arm contact points near the lower lip of the basket for damage (Figure 13).
Product Overview 8 Breaking in the Machine No Parts Required Procedure Only 8 hours of mowing operation is required for the break-in period. The first several hours of operation are critical to future dependability of the machine. You must monitor the machine performance closely so that minor difficulties, which could lead to major problems, are noted and can be corrected.
Throttle Control The throttle control (Figure 15 and Figure 16) is located on the right, rear side of the control panel. Rotate the throttle to regulate the engine speed. g027738 Figure 16 1. Full speed g000494 Figure 17 2. Slow speed Traction and Reel-Drive Engagement Lever 1. NEUTRAL 3. Traction—FORWARD (transport) 2. Traction—NEUTRAL and reel drive—DISENGAGE 4. Traction—FORWARD and reel drive—ENGAGE To operate the reel, the lever has 2 positions: ENGAGE and DISENGAGE.
Service Brake Choke Lever The service brake (Figure 18) is located on the left front side of the handle. Pulling back the lever applies the service brake. The choke lever (Figure 19) is located on the left front of the engine. The lever has 2 positions: RUN and CHOKE. Move the lever to the CHOKE position when starting a cold engine. After the engine starts, move the lever to the RUN position. You must disengage the brake before you engage the traction drive.
Fuel-Shutoff Valve Recoil-Starter Handle The fuel-shutoff valve (Figure 19 and Figure 20) is located on the left front of the engine near the choke lever. The valve has 2 positions: CLOSED and OPEN. Move the lever up to the CLOSED position when you store or transport the machine. Open the valve before you start the engine by rotating the lever down. Pull the recoil-starter handle (Figure 21) to start the engine. g018268 Figure 21 1. Recoil-starter handle g196011 Figure 20 1.
Kickstand The kickstand (Figure 23) is mounted to the rear of the machine. Use the kickstand when you install or remove the transport wheels or the cutting unit. • To use the kickstand to install the transport wheels, lower the kickstand to the ground and step down on the loop while pulling up and back on the lower-center handle (Figure 22). CAUTION g239955 The machine is heavy and can cause back strain if lifted improperly. Figure 23 1.
Specifications Operation 1820 Traction Unit Width 82.5 cm (32-1/2 inches) Height 104.8 cm (41-1/4 inches) Length with basket Net Weight (with 11-blade cutting unit and grass basket installed) Before Operation Note: Determine the left and right sides of the machine from the normal operating position. 152.4 cm (60 inches) 117 kg (258 lb) Before Operation Safety Width of cut 46 cm (18 inches) General Safety Height of cut 1.5 to 7.
Filling the Fuel Tank Checking the Engine-Oil Level DANGER Check the engine-oil level before each use or every 8 operating hours, refer to Checking the Engine-Oil Level (page 30). In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any fuel that spills. • Never fill the fuel tank inside an enclosed trailer.
WARNING Fuel is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. • Avoid prolonged breathing of vapors. • Keep your face away from the nozzle and fuel tank or conditioner bottle opening. • Avoid contact with skin; wash off spills with soap and water. 1. Clean around the fuel-tank cap and remove the cap from the tank (Figure 25). Fill the fuel tank no higher than to the bottom of the filter screen. Important: Do not overfill the tank with fuel.
Setting the Machine to Match Turf Conditions Use the following table to set the machine to match turf conditions.
Adjusting the Handle Height Note: The machine is shipped with the handle adjusted to the lowest position. The machine is normally operated with the handle telescoped out to its maximum height. 1. Loosen the 3 carriage bolts and nuts securing each side of the handle in the handle clamps (Figure 26). g017005 Figure 27 1. Hairpin cotter 3. Carriage bolts 2. Nut 2. Pull up on the handle slowly and evenly on each side until it is in the desired operating position. 3.
Checking the Operation of the Interlock Switches lever does not disengage, the interlock system needs service. Correct the problem before operating the machine; refer to Servicing the Traction-Interlock Switch (page 33). Service Interval: Before each use or daily 5. With the OPC pressed and the shift lever moved to the left, engage the traction and reel drive and release the OPC (Figure 29). The traction lever should disengage.
Important: Do not run the engine while transporting it on a trailer because damage can occur to the machine. OPC, and engage the traction lever (Figure 29). The engine should labor to overcome the brake but should not shut off. If the engine shuts off immediately, the interlock switch needs service. Correct the problem before operating the machine; refer to Checking the Brake-Interlock Switch (page 22). 4. 5. Hauling the Machine • Use care when loading or unloading the machine into a trailer or a truck.
• Do not touch the engine, muffler, or exhaust pipe • • • • • • hazards. Tall grass can hide obstructions. Uneven terrain could overturn the machine. – Be aware that operating the machine on wet grass, across slopes, or downhill may cause the machine to lose traction. Loss of traction may result in sliding and a loss of braking and steering. – Use extreme caution when operating the machine near dropoffs, ditches, embankments, water hazards, or other hazards.
Releasing the Transmission • Mow the greens in a straight back-and-forth direction across the green. If the machine becomes disabled, you can disengage the drum from the transmission to allow the machine to be maneuvered. 1. • Avoid circular mowing or turning the machine on the greens areas to prevent scuffing. • Turn the machine off the green by raising the On the right, rear corner of the machine, locate the traction engage/disengage lever next to the drive-housing drum (Figure 30).
After Operation After Operation Safety General Safety • Reduce the throttle setting before shutting off the engine and, if the engine has a fuel-shutoff valve, turn off the valve after mowing. • Clean grass and debris from the machine to help prevent fires. Clean up oil or fuel spills. Transporting the Machine After mowing, transport the machine away from the job site; refer to Transporting the Machine Using Transport Wheels (page 23) or Transporting the Machine Using a Trailer (page 23).
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Important: Do not tip the machine at an angle greater than 25°. Tipping the machine beyond 25° leads to oil leaking into the combustion chamber and/or fuel leaking out of the fuel-tank cap. Important: When using the machine in conjunction with the Trans Pro 80, always use the stops on the trailer when servicing the machine. Overtipping can result in fuel spills.
Daily Maintenance Checklist Important: Duplicate this page for routine use. Maintenance Check Item For the week of: Mon. Tues. Wed. Thurs. Fri. Check the safety interlock operation. Check the parking brake operation. Check that pivot joints operate freely. Check the fuel level. Check the engine oil level. Check the air filter. Clean the engine cooling fins. Check for unusual engine noises. Check for unusual operating noises. Check the reel-to-bedknife adjustment. Check the height-of-cut adjustment.
Pre-Maintenance Procedures Pre-Maintenance Safety • Disengage the drives and the cutting unit, engage the parking brake, shut off the engine, and disconnect the spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing the machine. • If the engine must be running to perform a maintenance adjustment, keep your hands, feet, clothing, and any parts of the body away from the cutting unit, attachments, and any moving parts. Keep bystanders away.
Engine Maintenance for the day. If you have already ran the engine, allow the oil to drain back down to the sump for at least 10 minutes before you check the engine-oil level. Engine Safety 1. Remove the transport wheels (if installed). • Fuel is flammable and explosive, and can cause 2. Position the machine so that the engine is level, and clean the area around the oil-level gauge (Figure 34). personal injury. • Check all fuel lines for tightness and wear regularly.
Changing the Engine Oil A. Wash the foam element in a solution of liquid soap and warm water. Squeeze the element to remove the dirt, but do not twist it, as the foam may tear. B. Dry the foam element by wrapping it in a clean rag. Squeeze the rag and element to dry it, but do not twist it, as the foam may tear. C. Saturate the element with clean engine oil. Squeeze the element to remove the excess oil and to distribute the oil. Service Interval: After the first 20 hours Every 50 hours 1.
Servicing the Spark Plug Fuel System Maintenance Service Interval: Every 100 hours Use an NGK BR6HS spark plug or equivalent. The correct air gap is 0.6 to 0.7 mm (0.024 to 0.028 inch). 1. Cleaning the Fuel-Tank Screen Pull the molded wire off the spark plug (Figure 38). Service Interval: After the first 20 hours Every 100 hours/Monthly (whichever comes first) 1. Unscrew and remove the fuel-tank cap from the fuel tank (Figure 40). g018272 Figure 38 1. Spark-plug wire 2.
Servicing the Brake-Interlock Switch Electrical System Maintenance 1. Ensure that the engine is off. Servicing the Traction-Interlock Switch 2. Remove the control panel. 3. Engage the service-brake lever and engage the parking-brake latch. Use the following procedure if the traction-interlock switch needs adjustment or replacement. 4. Loosen and remove the interlock-switch mounting fasteners (Figure 42). 1. Ensure that the engine is off. 2. Remove the control panel. 3.
Brake Maintenance Belt Maintenance Adjusting the Service/Parking Brake Inspecting the Reel-Drive Belt If the service/parking brake slips when operated, adjust the cable as follows: Service Interval: Every 1,000 hours 1. Move the service/parking brake lever to the OFF position. 2. Remove the control panel. 3.
Engaging/Disengaging the Transmission-Belt Tensioner C. Clean any debris from inside the belt compartment and from around the compression spring (Figure 45). D. Ensure that the compression spring is applying the proper tension on the belt. E. Tighten the bearing housing mounting nut. F. Install the belt cover. The transmission belt is tensioned by a spring-loaded idler pulley.
Controls System Maintenance Adjusting the Traction Control 2. Move the traction control to the ENGAGED position. F. Measure the distance from the pin on either end of the traction-control spring (Figure 48); repeat steps A through F until it is within 7.3 to 7.6 cm (2-7/8 to 3 inches). Adjusting the Reel Control If the traction control does not engage or if it slips during operation, an adjustment is necessary. 1. E. If the reel control does not properly engage, an adjustment is necessary.
Storage Storage Safety • Never store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances. • Allow the engine to cool before storing the machine in any enclosure. Storing the Machine 1. g027790 Figure 50 1. Jam nuts 2. Traction-control cable 3. Reel-control cable 4. At the control-handle bulkhead, tighten the reel-control cable enough to remove the slack from the cable without extending the spring. 5.
Notes:
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