Form No. 3425-221 Rev B Reelmaster® 3550 Traction Unit Model No. 03910—Serial No. 403340001 and Up Register at www.Toro.com.
Visit www.Toro.com for more information, including safety tips, training materials, accessory information, help finding a dealer, or to register your product. This product complies with all relevant European directives. For details, please see the separate product specific Declaration of Conformity (DOC) sheet. Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready.
Contents Changing the Fuel Filter Canister...................... 38 Bleeding Air from the Injectors .......................... 38 Electrical System Maintenance ........................... 39 Electrical System Safety ................................... 39 Servicing the Battery......................................... 39 Checking the Fuses .......................................... 39 Drive System Maintenance .................................. 40 Checking the Tire Pressure...............................
Safety This machine has been designed in accordance with EN ISO 5395:2017 (when you complete the setup procedures) and ANSI B71.4-2017. Important: For CE required regulatory data, refer to the Declaration of Conformity supplied with the machine. General Safety This product is capable of amputating hands and feet and of throwing objects. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.
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. decal133-8062 decal110-9642 133-8062 110-9642 1. Stored energy hazard—read the Operator's Manual. 2. Move the cotter pin to the hole closest to the rod bracket and then remove the lift arm and pivot yoke. decal93-7276 93-7276 1. Explosion hazard—wear eye protection. 2.
decal120-2102 120–2102 1. Read the Operator’s Manual decal120-1683 120-1683 4. Warning—do not park the machine on slopes; engage the parking brake, lower the cutting units, shut off the engine, and remove the key before leaving the machine. 1. Warning—read the Operator's Manual; all operators should be trained before operating the machine. 5. Thrown object hazard—keep bystanders away. 2. Warning—read the Operator's Manual before towing the machine. 3.
decal121-7884 121–7884 1. 8 blade reel adjustment 3. Read the Operator’s Manual for information on adjusting the reel. 2.
decal121-7928 121-7928 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in the conditions on that day and at that site.
decal120-2105 120-2105 1. Lower the reels. 5. Read the Operator’s Manual for information on starting the engine—1) Sit in the operator’s position; 2) Turn the key to the engine—preheat position; 3) Wait until the electrical preheat light turns off; 4) Turn the key to the engine—start position; 5) Disengage the parking brake. 2. Raise the reels. 6.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Use Qty. Right hose guide Left hose guide 1 1 Install the cutting units. No parts required – Adjust the turf compensation spring. Warning decal (138-1186) 1 Install the CE decal, if required. 4 Lock bracket Rivet Washer Screw (1/4 x 2 inches) Locknut (1/4 inch) 1 2 1 1 1 Install the hood latch (CE only). 5 Cutting-unit kickstand 1 Use the cutting-unit kickstand.
compensation spring is mounted to the same side of the cutting unit as the reel drive motor. Position the turf compensation as follows: 1 A. Installing the Cutting Units Remove the 2 carriage bolts and nuts securing the rod bracket to the cutting unit tabs (Figure 4). Parts needed for this procedure: 1 Right hose guide 1 Left hose guide Procedure 1. g003949 Park the machine on a level surface, engage the parking brake, shut off the engine, and remove the key from the ignition switch. 2.
g031275 Figure 6 1. Cutting unit 1 5. Cutting unit 5 2. Cutting unit 2 6. Reel motor 3. Cutting unit 3 7. Weight 4. Cutting unit 4 g015160 Figure 7 1. Hose guide (left side shown) 3. Nuts 2. Rod bracket g019602 Figure 8 1. Hose guides (each must lean toward the center cutting unit) 8. Lower all the lift arms completely. 9. Remove the snapper pin and the cap from the lift-arm pivot yoke (Figure 9). g003975 Figure 9 1. Snapper pin 12 2.
10. Note: Use the slot if a steering cutting unit is For the front cutting units, slide a cutting unit under the lift arm while inserting the carrier frame shaft up into the lift-arm pivot yoke (Figure 10). desired or use the hole if the cutting unit is to be locked in position (Figure 12). 14. Secure the lift-arm chain to the chain bracket with the snapper pin (Figure 12). Note: Use the number of chain links specified in the cutting unit Operator's Manual. g003948 Figure 12 g020321 Figure 10 1.
2 3 Adjusting the Turf Compensation Spring Installing the CE Decal Parts needed for this procedure: 1 No Parts Required Warning decal (138-1186) Procedure Procedure The turf compensation spring (Figure 14) transfers weight from the front to the rear roller. This helps to reduce a wave pattern in the turf, also known as marcelling or bobbing. If this machine will be used for CE, affix the warning decal (138-1186) over the English warning decal (120-1683).
g012630 Figure 17 1. Hood latch g012628 Figure 15 1. Hood-latch bracket 3. 2. Rivets 7. Screw the bolt into the other arm of the hood-lock bracket to lock the latch in position (Figure 18). While aligning the mounting holes, position the CE lock bracket and the hood-latch bracket onto the hood. Note: Tighten the bolt securely but do not tighten the nut. Note: The lock bracket must be against the hood (Figure 16). Do not remove the bolt and nut from the lock-bracket arm. g012631 Figure 18 1.
Product Overview g003945 Figure 21 g020158 Figure 19 1. Engine hood 5. Seat adjustment lever 2. Seat 6. Front cutting units 3. Control arm 7. Rear cutting units 4. Steering wheel 1. Cutting-unit kickstand Controls Secure the kickstand to the chain bracket with the snapper pin (Figure 20). g020079 Figure 22 1. Forward traction pedal 3. Mow/transport slide 2. Reverse traction pedal 4. Tilt-steering lever g004144 Figure 20 1. Chain bracket Traction Pedals 3. Cutting-unit kickstand 2.
Mow/Transport Slide Using your heel, move the mow/transport slide (Figure 22) to the left to transport and to the right to mow. The cutting units will only operate in the MOW position and not lower in the TRANSPORT position. Important: The mow speed is set at the factory to 9.7 km/h (6 mph). It can be increased or decreased by adjusting the speed stop screw (Figure 23). g019980 Figure 24 1. Parking brake 7. Oil-pressure light 2. Ignition switch 8. Temperature light 3. Enable/Disable switch 9.
Power Point Engine Coolant Temperature Warning Light The power point, located on the outside of the control panel, is a 12 V power supply for electronic devices (Figure 26). The temperature warning light (Figure 24) glows if the engine coolant temperature is high. At this temperature, the cutting units are disabled. If the coolant temperature rises another 5.5° C (10° F), the engine shuts off to prevent further damage.
parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty. g020248 Figure 27 1. Backlap lever 2. Reel speed control knob Backlap Lever Use the backlap lever in conjunction with the lower mow/raise control lever for the reels (Figure 27). Specifications Note: Specifications and design are subject to change without notice.
Performing Daily Maintenance Operation Before Operation Service Interval: Before each use or daily Note: Determine the left and right sides of the machine from the normal operating position. Before starting the machine each day, perform the Each Use/Daily procedures listed in Maintenance (page 30). Before Operation Safety Checking the Parking Brake General Safety Service Interval: Before each use or daily • Never allow children or untrained people to operate or service the machine.
Filling the Fuel Tank Use only clean, fresh diesel fuel or biodiesel fuels with low (<500 ppm) or ultra low (<15 ppm) sulfur content. The minimum cetane rating should be 40. Purchase fuel in quantities that can be used within 180 days to ensure fuel freshness. The fuel tank capacity is approximately 42 L (11 US gallons). g008884 Figure 29 Use summer-grade diesel fuel (Number 2-D) at temperatures above -7°C (20°F) and winter-grade diesel fuel (Number 1-D or Number 1-D/2-D blend) below -7°C (20°F ).
Adjusting the Seat Changing the Seat Position The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. 1. Move the lever sideways to unlock the seat (Figure 30). 2. Slide the seat to the desired position and release the lever to lock it in position. Changing the Seat Suspension You can adjust the seat to provide a smooth and comfortable ride. Position the seat where you are most comfortable.
Slope Safety • Before you start the engine, ensure that all drives • • • • • • • • • • • • are in neutral, the parking brake is engaged, and you are in the operating position. Do not carry passengers on the machine and keep bystanders and pets away from the machine during operation. Operate the machine only in good visibility to avoid holes or hidden hazards. Avoid mowing on wet grass. Reduced traction could cause the machine to slide. Keep your hands and feet away from the cutting units.
1. 2. Ensure that the parking brake is engaged and the cutting unit drive switch is in the DISENGAGE position. CAUTION Contact with moving parts could result in injury. Remove your foot from the traction pedal and ensure that the pedal is in the NEUTRAL position. 3. Move the throttle lever to the 1/2 throttle position. 4.
4. To set the reel speed, rotate the knob (Figure 32) until the indicator arrow is in line with the number designating the desired setting. 3. While relieving the spring tension, remove the bolt and locknut securing the spring actuator to the bracket (Figure 33). g020259 g020250 Figure 32 Figure 33 1. Reel speed control knob 1. Spring 3. Additional hole locations 2. Spring actuator Note: You can increase or decrease the reel speed to compensate for turf conditions.
g020251 Figure 35 1. Diagnostic light g008891 Figure 34 When the controller diagnostic light blinks, 1 of the following problems has been detected by the controller: 1. Fuel-injection pump bleed screw 5. Turn the key in the ignition switch to the ON position. The electric fuel pump will begin operation, thereby forcing air out around the air-bleed screw. • An output has been shorted. • An output is open circuited.
Checking the Interlock Switches Note: Ensure that the correct overlay decal is positioned on the Diagnostic ACE display. Service Interval: Before each use or daily The purpose of the interlock switches is to prevent the engine from cranking or starting unless the traction pedal is in the NEUTRAL position, the Enable/Disable switch is in the DISABLE position, and the Lower Mow/Raise control is in the NEUTRAL position.
Verifying Output Function of the everyday use of the machine. When you are finished using the Diagnostic ACE, disconnect it from the machine and connect the loop-back connector to the harness connector. The machine does not operate without the loop-back connector installed on the harness. Store the Diagnostic ACE in a dry, secure location in the shop, not on the machine. 1. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key. 2.
After Operation • Use full-width ramps for loading the machine into a trailer or truck. • Tie the machine down securely. After Operation Safety General Safety • Always shut off the engine, remove the key (if equipped), wait for all moving parts to stop, and allow the machine to cool before adjusting, servicing, cleaning, or storing the machine. • Clean grass and debris from the cutting units, drives, mufflers, cooling screens, and engine compartment 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. Maintenance Safety • If possible, do not perform maintenance while the engine is running. Keep away from moving parts. • Before adjusting, cleaning, servicing, or leaving the machine, do the following: – Park the machine on a level surface. – Move the throttle switch to the low-idle position. – Disengage the cutting units. – Lower the cutting units. – Ensure that the traction is in neutral.
Maintenance Service Interval Every 400 hours Every 2 years Maintenance Procedure • • • • Check the fuel lines and connections. Replace the fuel filter canister. Service the parking brakes. Change the hydraulic fluid. • Drain and clean the fuel tank. CAUTION If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the switch before you do any maintenance.
Daily Maintenance Checklist Duplicate this page for routine use. For the week of: Maintenance Check Item Mon. Tues. Wed. Thurs. Fri. Sat. Sun. Check the safety interlock operation. Check the brake operation. Check the engine-oil level. Check the cooling system fluid level. Drain the water/fuel separator. Check the air filter, dust cup, and burp valve. Check for unusual engine noises.1 Check the radiator for debris. Check for unusual operating noises. Check the hydraulic system fluid level.
Pre-Maintenance Procedures Removing the Battery Cover Loosen the knobs and remove the battery cover (Figure 40). Removing the Hood Note: Refer to Servicing the Battery (page 39) for 1. Unlatch and raise the hood. 2. Remove the hairpin cotter securing the hood pivot to the mounting brackets (Figure 39). more information. g008874 Figure 40 1. Battery cover g008908 Figure 39 1. Hairpin cotter 3. Slide the hood to the right side, lift the other side, and pull it out of the brackets.
Lubrication • Rear lift-arm pivots and lift cylinders (3 each side); refer to Figure 43. Greasing the Bearings and Bushings Service Interval: Every 50 hours (daily when conditions are dusty and dirty). Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key from the ignition switch. Lubricate the grease fittings regularly with No. 2 lithium grease.
Engine Maintenance Engine Safety • Shut off the engine before checking the oil or adding oil to the crankcase. • Do not change the governor speed or overspeed the engine. g008902 Figure 46 Checking the Engine-Oil Level • Belt tension pivot (Figure 47) Service Interval: Before each use or daily The engine is shipped with oil in the crankcase; however, the oil level must be checked before and after the engine is first started. Crankcase capacity is approximately 3.8 L (4 US qt) with the filter.
1. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key. 2. Release the latches securing the air-cleaner cover to the air-cleaner body (Figure 50). 3. Remove the cover from the air-cleaner body (Figure 50). 4. Before removing the filter, use low-pressure air (276 kPa [40 psi], clean and dry) to help remove large accumulations of debris packed between outside of primary filter and the canister.
10. Install the cover orienting the rubber outlet valve in a downward position—between approximately 5 o’clock to 7 o’clock when viewed from the end. 11. Secure the cover latches. Fuel System Maintenance Servicing the Fuel Tank Changing the Engine Oil and Filter Service Interval: Every 2 years—Drain and clean the fuel tank. Service Interval: After the first 50 hours Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key.
g008913 Figure 54 1. Fuel injectors g009880 Figure 53 1. Water separator/filter canister 2. Vent plug 4. 3. Drain valve 3. Move the throttle to the FAST position. 4. Turn the key in the key switch to the START position and watch the fuel flow around the connector. Turn the key to the OFF position when there is a continuous flow. 5. Tighten the pipe connector securely. 6. Repeat the procedure on the remaining nozzles. Tighten the valve after draining.
Electrical System Maintenance WARNING Incorrect battery cable routing could damage the tractor and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Electrical System Safety • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last.
Drive System Maintenance Checking the Tire Pressure Service Interval: Before each use or daily The tires are over-inflated for shipping. Therefore, release some of the air to reduce the pressure. The correct air pressure in the tires is 83 kPa (12 psi). g008922 Note: Maintain the recommended pressure in all tires Figure 55 to ensure a good quality of cut and proper machine performance. 1. Traction adjustment cam 2. Locknut DANGER WARNING Low tire pressure decreases machine side hill stability.
Cooling System Maintenance CAUTION If the engine has been running, the pressurized, hot coolant can escape and cause burns. Cooling System Safety • Do not open the radiator cap when the engine is running. • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets. • Use a rag when opening the radiator cap, and open the cap slowly to allow steam to escape. • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns.
Brake Maintenance Cleaning the Engine Cooling System Adjusting the Parking Brake Service Interval: Before each use or daily Remove debris from the radiator daily. Clean it more frequently in dirty conditions. 1. Service Interval: Every 200 hours—Check the adjustment of the parking brake. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key from the ignition switch. 2. Raise the hood. 3.
Removing the Front Wheels 1. Remove the 4 lug nuts that secure the front wheel to the hub, and remove the wheel (Figure 60). g332520 Figure 62 Machines with the Optional Grass Shield 1. Locknut 2. Hub and brake drum g332518 Figure 60 1. Lug nut 3. Hub 2. Wheel 2. 3. Wheel-motor shaft Repeat step 1 at the other side of the machine. Removing the Wheel Hub and Brake Drum 2. Repeat step 1 at the other side of the machine. 3. Release the parking brake. 4.
Cleaning the Brake Drum and Shoes At both sides of the machine, clean inside the brake drums, the brake shoes, backing plate (Figure 64) , and when installed, the optional grass shield of any grass, dirt, and dust. g332545 Figure 66 Machines with the Optional Grass Shield g332543 Figure 64 1. Backing plate Inspecting and Lubricating the Brake Cam Shaft 1. 2.
3. Repeat steps 1 and 2 at the other side of the machine. 4. Move the parking brake lever down (the disengaged position). Inspecting the Brake Linkage 1. Inspect the left and right brake-rod assemblies (Figure 68) for damage and wear. Note: If the brake rod parts are damaged and worn, replace them; refer to the Service Manual for your machine. g332521 Figure 69 1. Woodruff key 3. g332541 2.
g332520 Figure 71 Machines with the Optional Grass Shield 1. Locknut 2. Hub and brake drum 4. 3. Wheel-motor shaft Secure the wheel hub to the shaft with the locknut (Figure 70 or Figure 71), and tighten by hand. Note: The brake shoes and backing plate must concentrically align with the brake drum. If the shoes, plate, and drum are misaligned, refer to the Service Manual for your machine. 5. Repeat steps 1 through 4 at the other side of the machine. Installing the Wheel 1.
Belt Maintenance the engine, and remove the key from the ignition switch. 2. Servicing the Engine Belts Service Interval: After the first 10 hours—Check the condition and tension of all belts. Insert a nut driver or small piece of tubing onto the end of the belt tensioning spring. WARNING The spring is under a heavy load and could cause personal injury Every 100 hours—Check the condition and tension of all belts. Use caution when de-tensioning the spring. Tensioning the Alternator/Fan Belt 1.
Controls System Maintenance Hydraulic System Maintenance Adjusting the Throttle Hydraulic System Safety 1. • Seek immediate medical attention if fluid is injected Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key from the ignition switch. 2. Position the throttle lever rearward so that it stops against the control panel slot. 3. Loosen the throttle cable connector on the injection pump lever arm (Figure 75).
Pour point, ASTM D97 -36.7°C to -45°C (-34°F to -49°F) 11 or better 500 ppm (maximum) FZG, fail stage Water content (new fluid) Industry Specifications: Vickers I-286-S, Vickers M-2950-S, Denison HF-0, Vickers 35 VQ 25 (Eaton ATS373-C) The proper hydraulic fluids must be specified for mobile machinery (as opposed to industrial plant usage), multiweight-type, with ZnDTP or ZDDP anti-wear additive package (not an ashless-type fluid).
g019986 Figure 77 1. Hydraulic filter 3. Lubricate the new filter gasket and fill the filter with hydraulic fluid. 4. Ensure that the filter mounting area is clean. Screw the filter on until the gasket contacts the mounting plate; then tighten the filter 1/2 turn. 5. Start the engine and let it run for about 2 minutes to purge air from the system. Shut off the engine and check for leaks. g020253 Figure 78 1. Hydraulic hose 3. Install the hydraulic hose when hydraulic fluid stops draining. 4.
Checking the Hydraulic Lines and Hoses Cutting Unit System Maintenance Service Interval: Before each use or daily Blade Safety Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the engine, and remove the key from the ignition switch. • A worn or damaged blade or bedknife can break, and a piece could be thrown toward you or bystanders, resulting in serious personal injury or death.
DANGER Changing the engine speed while backlapping may cause the cutting units to stall. • Never change the engine speed while backlapping • Backlap only at idle engine speed. 5. Set the reel speed control to position 1 (Figure 81). g004552 Figure 80 1. Gauge bar 4. Holes used for setting groomer HOG 2. Height adjusting screw 5. Hole not used 3. Nut Backlapping the Cutting Units WARNING g020248 Contact with the cutting units or other moving parts can result in personal injury. Figure 81 1.
10. Storage To make an adjustment to the cutting units while backlapping, turn the cutting units off by moving the Lower Mow/Raise lever rearward; the Enable/Disable switch to the DISABLE position, and shut off the engine. After completing the adjustments, repeat steps 5 through 9. 11. Repeat the procedure for all the cutting units that you want to backlap. 12.
F. Either store the battery on the shelf or on the machine in a cool area. Leave the cables disconnected if the battery is stored on the machine. Preparing the Engine 1. Drain the engine oil from the oil pan and replace the drain plug. 2. Remove and discard the oil filter. Install a new oil filter. 3. Refill the oil pan with approximately 3.8 L (4 US qt) of SAE 15W-40 motor oil. 4. Start the engine and run it at idle speed for approximately 2 minutes. 5. Shut off the engine. 6.
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The Toro Warranty A Two-Year Limited Warranty Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Commercial product (“Product”) to be free from defects in materials or workmanship for two years or 1500 operational hours*, whichever occurs first. This warranty is applicable to all products with the exception of Aerators (refer to separate warranty statements for these products).
