Form No. 3431-900 Rev C TRX-250 and TRX-300 Trencher Model No. Model No. Model No. Model No. Register at www.Toro.com. Original Instructions (EN) 22983—Serial No. 400000000 and Up 22983G—Serial No. 400000000 and Up 22983HD—Serial No. 400000000 and Up 22984—Serial No.
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 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm.
Important: With your mobile device, you can scan the QR code on the serial number decal (if equipped) to access warranty, parts, and other product information. Specifications .................................................. 14 Attachments/Accessories ................................. 14 Before Operation ................................................. 15 Before Operation Safety ................................... 15 Adding Fuel ......................................................
Safety General Safety DANGER There may be buried utility lines in the work area. Digging into them may cause a shock or an explosion. Have the property or work area marked for buried lines and do not dig in marked areas. Contact your local marking service or utility company to have the property marked (for example, in the US, call 811 or in Australia, call 1100 for the nationwide marking service). This product is capable of amputating hands and feet.
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 missing. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. Keep bystanders away from the battery. 2. No fire, open flame, or smoking 7. Wear eye protection; explosive gases can cause blindness and other injuries. 3. Caustic liquid/chemical burn hazard 4.
Decal 131-1097 is for machines with a Toro engine only. decal138-7107 decal131-1097 138-7107 131-1097 1. Oil drain 1. Forward 3. Right 2. Left 4. Reverse decal133-8062 133-8062 decal138-7154 138-7154 decal139-1271 139-1271 1. Parking brake—Engage 2. Parking brake—Disengage 6 1. Read the Operator’s Manual for fuse information. 2. Fan 4. Magneto relay 3. Electric 6. Ignition relay 5.
Decal 137-3882 is for model 22983 only. Decal 138-7155 is for model 22984 only. decal137-3882 decal138-7155 137-3882 138-7155 1. Read the Operator’s Manual. 1. Read the Operator’s Manual. decal99-9952 99-9952 1. Cutting/dismemberment hazard, auger and chain—keep bystanders away; stay away from moving parts. 2. Warning—remove the key before performing maintenance. 3. Explosion hazard; electrical shock hazard—do not operate if power lines may be present. decal138-7104 138-7104 1.
Decal 138-7105 is for model 22983 only. decal138-7105 138-7105 9. Trencher chain—Forward 1. Engine—Shut off 2. Engine—Run 10. Off 3. Engine—Start 11. Read the Operator’s Manual for information on operating the machine—move the trencher-control lever to the reference bar; lower the trencher boom; pull the traction control rearward. 12. Unlock 4. Engine speed 13. Lower the boom. 5. Choke—On 14. Lock 6. Choke—Off 15. Raise the boom. 7.
Decal 138-7106 is for model 22984 only decal138-7106 138-7106 8. Trencher chain—Forward 1. Engine—Shut off 2. Engine—Run 3. Engine—Start 4. Engine speed 9. Off 10. Read the Operator’s Manual for information on operating the machine—move the trencher-control lever to the reference bar; lower the trencher boom; pull the traction control rearward. 11. Unlock 12. Lower the boom. 5. Attention—read the Operator’s Manual before performing maintenance. 13. Lock 6.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 Description Use Qty. Boom (sold separately) Chain (sold separately) 1 1 Install the boom and chain. No parts required – Check the fluid levels. No parts required – Charge the battery.
10. Loop the digging chain over the auger drive shaft and onto the drive sprocket, ensuring that the digging teeth point forward on the upper span. 11. Set the upper span of the chain into place on the trencher boom, then wrap the chain around the roller at the end of the boom. 12. Thread the adjustment bolt into the boom and turn it in until there is 3.8 to 6.3 cm (1-1/2 to 2-1/2 inches) of slack in the chain on the bottom span. 13.
Electronic-Control Unit Malfunction-Indicator Light Product Overview Kohler Machines Only The electronic-control unit (ECU) continuously monitors the operation of the EFI system. If a problem or fault within the system is detected, the malfunction-indicator light (MIL) is illuminated (Figure 6). The MIL is the red light located in the console panel. When the MIL illuminates, make initial troubleshooting checks.
Traction Controls • To turn left, move the right traction control forward (Figure 10). • To move forward, move both traction controls forward (Figure 7). g258531 Figure 10 g258529 Figure 7 • To stop the machine, release the traction controls. • To move rearward, move both traction controls Note: The farther you move the traction control in rearward (Figure 8). any direction, the faster the machine moves in that direction.
Boom-Elevation Lock Parking-Brake Lever The boom-elevation lock secures the boom-elevation lever so that you cannot push it forward. This helps to ensure that no one accidentally lowers the boom during maintenance. Secure the boom with the lock anytime you need to stop the machine with the boom raised. • To engage the parking brake, pull the brake lever rearward and up (Figure 14). • To disengage the parking brake, pull the lever rearward and then down (Figure 14).
Fuel Safety Operation • Use extreme care in handling fuel. It is flammable and its vapors are explosive. Note: Determine the left and right sides of the machine from the normal operating position. • Extinguish all cigarettes, cigars, pipes, and other sources of ignition. Important: Before operating the machine, check • Use only an approved fuel container. • Do not remove the fuel cap or fill the fuel tank the fluid levels, and remove debris from the machine.
Using Stabilizer/Conditioner During Operation Use fuel stabilizer/conditioner in the machine to keep the fuel fresh longer when used as directed by the fuel-stabilizer manufacturer. During Operation Safety Important: Do not use fuel additives containing General Safety methanol or ethanol. • Keep your hands and feet away from moving Add the amount of fuel stabilizer/conditioner to fresh fuel as directed by the fuel-stabilizer manufacturer. Filling the Fuel Tank 1.
• Never leave a running machine unattended. Before leaving the operating position, do the following: – Drop-offs – Park the machine on a level surface. – Embankments – Lower the boom to the ground. – Bodies of water – Engage the parking brake. The machine could suddenly roll over if a track goes over the edge or the edge caves in. Maintain a safe distance between the machine and any hazard. – Ditches – Shut off the engine and remove the key. • Check for overhead clearance (i.e.
Driving the Machine Starting the Engine 1. Move the throttle lever midway between the SLOW and FAST positions (Figure 16). Use the traction controls to move the machine. The farther you move the traction controls in any direction, the faster the machine moves in that direction. Release the traction controls to stop the machine. CAUTION When reversing, you may back into stationary objects or over bystanders and cause serious personal injury or death. g251917 Figure 16 1.
Digging a Trench 1. Operating Tips • Clean the area of trash, branches, and rocks Start the engine, raise the boom, move the throttle lever to the FAST position, and move the machine over the area to be trenched. before trenching to prevent damaging the machine. • Always begin trenching with the slowest ground speed possible. Increase speed if conditions permit. If the chain speed slows down, reduce the ground speed to keep the chain moving at its fastest rate. Do not spin the tracks while trenching.
After Operation After Operation Safety • Park the machine on a level surface, disengage the trencher hydraulics, lower the boom, engage the parking brake, shut off the engine, and remove the key. Wait for all movement to stop and allow the machine to cool before adjusting, servicing, cleaning, or storing it. • Clean debris from the attachments, drives, mufflers, and engine to help prevent fires. Clean up oil or fuel spills.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. CAUTION If you leave the key in the key switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the key switch and disconnect the wires from the spark plugs before you do any maintenance. Set the wires aside so that they do not accidentally contact the spark plugs.
Maintenance Service Interval Maintenance Procedure Every 150 hours • For Kohler engines—Inspect the outer air filter. Every 200 hours • For Kohler engines—change the engine-oil filter (more often in dirty or dusty conditions). • For Toro engines—check the valve clearance. • For Toro engines—replace the spark plug(s). • Replace the fuel filter. • Replace the hydraulic filter. Every 250 hours • Check and grease the road wheels.
Pre-Maintenance Procedures Loosen all fasteners on each cover a few turns so that the cover is loose but still attached, then go back and loosen them until the cover comes free. This prevents you from accidentally stripping the bolts free of the retainers. Removing the Cover Plate 1. 2. 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. 2.
Lubrication Greasing the Machine Service Interval: Before each use or daily (Grease immediately after every washing.) Grease Type: General-purpose grease. 1. Park the machine on a level surface, engage the parking brake, and lower the boom. 2. Shut off the engine and remove the key. 3. Clean the grease fittings with a rag. 4. Connect a grease gun to each fitting (Figure 22 through Figure 24). 5. Pump grease into the fittings until grease begins to ooze out of the bearings (approximately 3 pumps).
Engine Maintenance Servicing a Kohler® Engine Engine Safety Servicing the Air Cleaner • Shut off the engine before checking the oil or Service Interval: Every 150 hours—For Kohler engines—Inspect the outer air filter. adding oil to the crankcase. Every 300 hours/Yearly (whichever comes first)—For Kohler engines—replace the outer air filter (more often in dusty or sandy conditions). • Do not change the engine governor setting or overspeed the engine.
Note: Avoid knocking the filter into the side of 9. the body. 3. Carefully slide the outer filter over the safety filter (Figure 28). Remove the inner filter only if you intend to replace it. Note: Ensure that the outer filter is fully seated by pushing on the outer rim while installing it. Important: Never attempt to clean the inner Important: Do not press on the soft, inside area of the filter. filter. If the safety filter is dirty, then the outer filter is damaged. Replace both filters. 4.
Changing the Engine Oil 1. Start the engine and let it run 5 minutes. This warms the oil so it drains better. 2. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. 3. Lower the boom and engage the parking brake. 4. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 5. Change the oil (Figure 31).
6. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 32). g194610 g027477 Figure 32 7. Start the engine and drive to a flat area. 8. Check the oil level again. Figure 33 Changing the Engine-Oil Filter 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 27). 2. Change the engine-oil filter (Figure 33).
Servicing the Spark Plug(s) Checking the Spark Plug(s) Service Interval: Every 500 hours Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, or cracks. Make sure that the air gap between the center and side electrodes is correct before installing the spark plug(s). Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.
Servicing a Toro Engine Installing the Filter Important: To prevent engine damage, always operate the engine with the air filter and the cover installed. Servicing the Air Cleaner Service Interval: Every 300 hours—For Toro engines—replace the air filter (more often in dirty or dusty conditions). 1. If you are installing a new filter, check the filter for shipping damage. Note: Do not use a damaged filter. Removing the Filter 1. 2.
Checking the Engine-Oil Level 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. 2. Shut off the engine and remove the key. g272603 g194611 Figure 40 Changing the Engine Oil and Oil Filter 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. 2. Shut off the engine and remove the key. 3. Drain the oil from the engine (Figure 41). g029570 Figure 41 4.
Note: Ensure that the oil-filter gasket touches the engine and then turn the filter an extra 3/4 turn. g193530 Figure 43 6. g027477 Figure 42 5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 43). 32 Dispose of the used oil at a recycling center.
Servicing the Spark Plug(s) Checking the Spark Plug(s) Service Interval: Every 100 hours/Yearly (whichever comes first)—For Toro engines—check the spark plug(s). Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, or cracks. Every 200 hours/Every 2 years (whichever comes first)—For Toro engines—replace the spark plug(s). If you see light brown or gray on the insulator, the engine is operating properly.
Draining the Fuel Tank Fuel System Maintenance DANGER 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. Refer to Fuel Safety (page 15) for a complete list of fuel related precautions. 1. Park the machine on a level surface, engage the parking brake, and lower the boom. 2. Shut off the engine and remove the key. 3. Turn the fuel-shutoff valve to the closed position (Figure 47). 4.
Replacing the Fuel Filter Electrical System Maintenance Service Interval: Every 200 hours Never install a dirty filter if it is removed from the fuel line. Electrical System Safety Note: Note how the fuel filter is installed in order to • Disconnect the battery before repairing the install the new filter correctly. machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last. Note: Wipe up any spilled fuel. 1.
Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery. Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 0°C (32°F). 1. Remove the battery from the machine; refer to Removing the Battery (page 35). 2. Charge the battery for 4 to 8 hours at a rate of 3 to 4 A (Figure 50).
5. If the batteries are corroded, clean them with a battery cleaner or a solution of 4 parts water and 1 part baking soda. 6. Rinse the battery with clear water. 7. Coat the battery posts and cable connectors with Grafo 112X (skin-over) grease (Toro Part No. 505-47) or petroleum jelly to prevent corrosion. 8. Install the battery; refer to Installing the Battery (page 37). not allow the electrolyte to fall below the lower line (Figure 51). g000537 Figure 51 Installing the Battery 1.
Replacing the Fuses 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. 2. Shut off the engine and remove the key. 3. Remove the bolt and access panel on the right side of the machine (Figure 52). Drive System Maintenance Servicing the Tracks Cleaning the Tracks Service Interval: Before each use or daily Check the tracks for excessive wear and clean them periodically. If the tracks are worn, replace them. g259092 4.
Checking and Adjusting the Track Tension is applied to the track span. Adjust the torque on the tensioning bolt as needed. Service Interval: After the first 50 hours Every 100 hours To check the tension of each track, place 20.4 kg (45 lb) on the track midway between the front road wheel and the drive wheel. The track should flex no more than 0.6 to 1 cm (1/4 to 3/8 inch). If it does, adjust the track tension using the following procedure: g007833 Figure 55 1.
Replacing the Tracks When the tracks are badly worn, replace them. 1. Park the machine on a level surface, engage the parking brake, and lower the boom. 2. Shut off the engine and remove the key. 3. Lift and support the side of the unit to be worked on so that the track is 7.6 to 10 cm (3 to 4 inches) off the ground. 4. Back out the tensioning bolt and jam nut (Figure 56). 5. Loosen the clamp bolts (Figure 56). 6. Push the front road wheel rearward as far as it can goes (Figure 57).
Checking and Greasing the Road Wheels Brake Maintenance Service Interval: Every 250 hours Testing the Parking Brake 1. Park the machine on a level surface, engage the parking brake, and lower the boom. 2. Shut off the engine and remove the key. 3. Remove the tracks; refer to Replacing the Tracks (page 40). 4. Remove the snap ring and cap from a road wheel (Figure 59). Service Interval: Before each use or daily g013416 Figure 59 1. Road wheel 3. Snap ring 2. Road wheel cap 5.
Hydraulic System Maintenance • • Pour Point, ASTM D97 -37 to -43°C (-35 to -46°F) API GL-4, AGCO Powerfluid 821 XL, Ford New Holland FNHA-2-C-201.00, Kubota UDT, John Deere J20C, Vickers 35VQ25 and Volvo WB-101/BM • Seek immediate medical attention if fluid is injected • 140 to 152 Industry Standards Hydraulic System Safety • Viscosity index, ASTM D2270 into skin. Injected fluid must be surgically removed within a few hours by a doctor.
5. Install the replacement hydraulic filter and filler cap (Figure 62) and torque the bolt on top to 13 to 15.5 N∙m (110 to 140 in-lb). 6. Clean up any spilled fluid. 7. Install the top cover. Changing the Hydraulic Fluid Service Interval: Every 400 hours/Yearly (whichever comes first) g007839 Figure 61 1. Filler-neck cap 6. 7. 8. 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the boom. 2. Shut off the engine and remove the key. 3.
11. Fill the hydraulic tank with hydraulic fluid; refer to Hydraulic Fluid Specifications (page 42). 12. Install the hydraulic filter and filler cap (Figure 62) and torque the bolt on top to 13 to 15.5 N∙m (110 to 140 in-lb). 13. Start the engine and let it run for a few minutes. 14. Shut off the engine. 15. Check the hydraulic-fluid level and top it off if necessary; refer to Checking the Hydraulic-Fluid Level (page 42). 16. Clean up any spilled fluid. 17.
8. Torque the 2 bolts and nuts securing the boom to 183 to 223 N∙m (135 to 165 ft-lb). Replacing the Drive Sprocket Over time, the drive sprocket wears, especially when it is used in sandy or clay soils. When this happens, the digging chain begins to slip. If the chain slips, replace the drive sprocket as follows: g287009 Figure 64 1. Bolts 2. Jam nut 3. Adjusting bolt B. Loosen the jam nut on the adjusting bolt in the boom. C. Loosen the adjusting bolt until you can remove the chain from the boom.
12. Slide the new sprocket onto the shaft (Figure 65). Cleaning Important: The arrow on the sprocket face should be visible from the right side of the trench and should point in a clockwise direction; if not, turn the sprocket around. Removing Debris from the Machine 13. Thread the 6 bolts into the sprocket finger tight (Figure 65). 14. Slowly begin tightening the bolts progressing around the sprocket until all bolts are torqued to 129 to 155 N∙m (95 to 115 ft-lb).
Storage handle to crank the engine and distribute the oil inside the cylinder. 1. Park the machine on a level surface, engage the parking brake, and lower the boom. 11. Install the spark plug, but do not install the wire on the spark plug. 2. Shut off the engine, remove the key, and wait for the engine to cool. 12. Charge the battery; refer to Charging the Battery (page 36). 3. Remove dirt and grime from the external parts of the entire machine, especially the engine.
Troubleshooting Problem The starter does not crank. The engine does not start, starts hard, or fails to keep running. The engine loses power. Possible Cause Corrective Action 1. The battery is discharged. 1. Charge the battery or replace it. 2. The electrical connections are corroded or loose. 3. The relay or switch is damaged. 2. Check the electrical connections for good contact. 3. Contact your Authorized Service Dealer. 1. The fuel tank is empty. 1. Fill the tank with fresh fuel. 2. 3. 4. 5.
Problem The trencher does not dig fast enough. The malfunction indicator light (MIL) comes on (Kohler machines only). Possible Cause Corrective Action 1. The digging teeth are worn. 1. Replace the digging teeth. 2. The chain you are using is not appropriate for the type of ground. 3. The hydraulic system is overheated. 4. The hydraulic system is obstructed, contaminated, or damaged. 2. Evaluate the ground type and change chains if necessary. 3. Shut down and allow the system to cool. 4.
Notes:
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California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
