Page 1
3200 2-Wheel or All-Wheel Drive Traction Unit Model No. 31900—Serial No. 407970823 and Up Model No. 31901—Serial No. 407970000 and Up Model No. 31907—Serial No. 407900000 and Up Model No. 31909—Serial No. 407900000 and Up *3446-607* Register at www.Toro.com. Original Instructions (EN)
It is a violation of California Public Resource Code additional information, contact an Authorized Service Section 4442 or 4443 to use or operate the engine on Dealer or Toro Customer Service and have the model any forest-covered, brush-covered, or grass-covered and serial numbers of your product ready.
Starting the Engine ........... 42 Resetting the PTO Function......42 Shutting Off the Engine........42 g000502 After Operation ............ 43 Figure 2 After Operation Safety ........43 Safety-alert symbol Servicing the Cutting Unit ......... 43 Towing the Machine .......... 45 Hauling the Machine .........
Safety Hydraulic System Maintenance ......68 Hydraulic System Safety........68 Hydraulic Fluid Specifications......68 Models 31900 and 31901 have been designed in Checking the Hydraulic-Fluid Level....68 accordance with ANSI B71.4-2017 and with EN ISO Changing the Hydraulic Fluid and 5395 when you complete the setup procedures and Filters ............
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. decal106-9206 106-9206 decalbatterysymbols 1. Wheel torque specifications Battery Symbols 2.
Page 6
decal133-8062 133-8062 decal115-8155 115-8155 1. Warning—read the Operator's Manual, do not prime or use starting fluid. decal138-2765 138-2765 3. Fixed speed—low 1. Off 2. Intermittent windshield 4. Fixed speed—high wiper speed decal125-9688 125-9688 1. Off 3. On 2. Windshield wipers 4.
Page 7
decal138-7473 138-7473 1. Fast 2. Slow decal138-7471 138-7471 1. Engine—start 5. Push down to disengage the cutting blade. 2. Engine—run 6. Deck—lower 3. Engine—stop 7. Deck—raise 4. Lift up to engage the cutting blade. decal139-6215 139-6215 1. Warning—read the 5. Cutting/dismemberment Operator’s Manual;...
Page 8
decal139-6224 139-6224 1. Parking 2. Parking brake—engaged brake—disengaged decal140-1460 140-1460 1. To move the machine 3. To adjust the steering forward, press forward on wheel, press the tilt lever. the pedal. 2. To move the machine backward, press backward on the pedal. decal139-6304 139-6304 1.
Page 9
decal144-3950 144-3950 1. Read the Operator's Manual for more information on servicing the machine. decal140-6632 140-6632 1. Read the Operator’s 4. Fan and interior light (40 Manual for fuse information. 2. A/C clutch and condenser 5. Front of machine fan (25 A) 3.
Page 10
Decal 144-3952: Affix over Decal 139-6215 (as shown in the CE Kit Installation Instructions) for use in CE-compliant countries (Models 31900 and 31901 only). decal144-3952 144-3952 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.
Procedure Description Qty. Optional attachment (ordered separately; refer to your authorized Toro distributor) Install the attachment. Socket-head screw (3/8 inch) Washer (3/8 inch) Flange locknut (3/8 inch) – No parts required Check the fluid levels. – No parts required Check the tire pressure.
Install each tire as follows: Torque the wheel lug nuts; refer to Torquing the Wheel-Lug Nuts (page 61). • 2-wheel-drive machines: Apply thread-locking compound to the bolt (5/8 x 1-1/4 inch). Use a small washer, large washer, bolt (5/8 x 1-1/4 inch), and to secure the wheel to the axle spindle (Figure Removing the Front Tires...
Install the grease fittings to the large pins (Figure Use 2 nuts (3/8 inch) and 2 bolts (3/8 x 2-3/4 inches) to secure the large pins to the frame Installing the Lift-Arm (Figure Assembly Models 31900, 31901, and 31907 Only Parts needed for this procedure: Right lift arm Left lift arm...
Perform the following steps to secure the hydraulic cylinders to the lift arms: Place a drain pan under the hydraulic manifold (shown in Figure Note: You must bleed out a small amount of hydraulic fluid to manually retract the lift cylinders.
Bracket Parts needed for this procedure: Models 31900, 31901, and 31907 Seat Kit (ordered separately; refer to your authorized Only Toro distributor) Procedure Parts needed for this procedure: Tie-down bracket Install the seat; refer to the Seat Kit Installation Instructions.
Note: Ensure that the foam collar remains on the steering shaft (Figure 14). Slide the steering wheel and washer onto the steering shaft (Figure 14). Installing the Steering Use the nylock nut to secure the steering wheel to the shaft. Tighten the nylock nut to 27 to 35 Wheel N∙m (20 to 26 ft-lb).
Installing the Bumper Models 31900, 31901, and 31907 Only Parts needed for this procedure: Bumper Bolt (3/8 x 2-3/4 inches) Bolt (3/8 x 3-1/4 inches) Nut (3/8 inch) Procedure Remove the bumper from the shipping skid. Loosely secure the upper area of the bumper to the machine frame using 4 bolts (3/8 x 3-1/4 inches) and 4 nuts (3/8 inch) as shown in Figure...
(Figure 18), authorized Toro distributor) and slide the yoke over the shaft. Socket-head screw (3/8 inch) Washer (3/8 inch) Flange locknut (3/8 inch) Procedure Important: When switching attachments, confirm with your authorized Toro distributor the...
(Figure 19), and secure the capscrew with a flange-locknut (3/8 inch). Incrementally torque the locknuts to 61 N∙m (45 ft-lb) in an alternating pattern. Checking the Fluid Levels g340624 Figure 18 No Parts Required 1. Driveshaft yoke 2. Input shaft Procedure Assemble a socket-head capscrew (3/8 x 2-1/4 Before you start the engine for the first time, perform...
Installing the CE Kit Parts needed for this procedure: CE Kit (ordered separately; refer to your authorized Toro distributor) Procedure If you operate the machine in a country that complies to CE standards, install the CE Kit; refer to the kit...
Adding Rear Weight Parts needed for this procedure: Weight—19 kg (42 lb) [amount varies per your model] Weight—6 kg (15 lb) [amount varies per your model] Weight Bracket Kit (if necessary) Weight—11 kg (25 lb) [amount varies per your model] Refer to the following table for the weight that is shipped with each machine: Model Shipped Rear Weight...
Page 23
Minimum Required Rear Weight Number of Weights Required 19 kg (42 lb) 6 kg (15 lb) 11 kg (25 lb) Attachment Model Traction Unit Number(s) or Model Number Total Name 31970, 31971, 31974 31970, 31971, 31974 and Sunshade 31972, 31973, 31975 31972, 31973, 31975 and...
Page 24
Minimum Required Rear Weight (cont'd.) Number of Weights Required 19 kg (42 lb) 6 kg (15 lb) 11 kg (25 lb) Attachment Model Traction Unit Number(s) or Model Number Total Name 31970, 31971 31970, 31971 and Sunshade 31972, 31973 31972, 31973 and Sunshade 02835 02835 and...
Page 25
Sunshade 31970, 31971 31970, 31971 and Sunshade 31972, 31973 31907 31972, 31973 and Sunshade 02835 02835 and Sunshade If you need to add rear weight, contact your authorized Toro distributor for additional weights and refer to the following installation procedures:...
Page 26
2. Nut Add the required amount of weights. Tighten the weight-lock-rod hardware to secure the weight to the bumper. Adding 6 kg (15 lb) Weights Refer to your authorized Toro distributor to order the following parts: Part Name Quantity Part Number...
Page 27
For traction unit/attachment configurations that require up to 2 weights (11 kg or 25 lb each) : Refer to your authorized Toro distributor to order the Weight Bracket Kit (Part Number 144-0480). Install the Weight Bracket Kit; refer to the kit Installation Instructions.
Adjusting the Weight Transfer of the Attachment No Parts Required Procedure Perform this procedure only if you are installing an attachment other than the standard rotary cutting units (e.g., snowthrower, blade, or flail). g299920 You can change the hydraulic pressure used to Figure 23 transfer the weight of the attachment to the traction unit by adjusting the weight-transfer valve of the...
Product Overview the recommended pressure setting for the attachment. • Rotate the adjusting screw clockwise to increase the pressure. • Rotate the adjusting screw counterclockwise to decrease the pressure. Attachment Weight-Transfer Pressure Rotary cutting unit 1,724 kPa (250 psi) Flail Mower (Model Number 1,379 kPa (200 psi) 02835) Snowthrower...
Controls Parking Brake Whenever you shut off the engine, engage the Traction Pedal parking brake (Figure 16) to prevent the machine from accidentally moving. Note: Adjust the seat position before you operate the • Engage the parking brake: Pull the handle up to machine.
Console Key Switch The key switch has 3 positions: O Refer to the following sections for a description of the REHEAT and S console controls (Figure 28). TART Use the switch to start or shut off the engine [refer Starting the Engine (page 42) Shutting Off the Engine (page 42)] or to review the display-screen...
Contact Cutting Unit Width your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all Model 31970 198 cm (78 inches) approved attachments and accessories. Model 31971...
Checking the Machine Daily Operation Check the following machine systems each day Before Operation before operating the machine: • Air-cleaner indicator; refer to Servicing the Air Cleaner (page 54) Before Operation Safety • Engine oil; refer to Checking the Engine-Oil Level (page 52) General Safety •...
• Fuel filter plugging may occur for period after converting to biodiesel blends. Fuel Specification • Contact your authorized Toro distributor if you wish Important: Use only low sulphur or ultra-low for more information on biodiesel. sulphur diesel fuel. Failure to observe the following cautions may Filling the Fuel Tank damage the engine.
4. Important: If engine does not shut off, there is a malfunction in the safety-interlock system. Refer to your authorized Toro distributor. g287495 Figure 32 With the engine running and the PTO switch set...
Page 38
WARNING There is no rollover protection when the roll bar is lowered. • Do not operate the machine on uneven ground or on a hill side with a lowered roll bar. g257846 • Lower the roll bar only when absolutely necessary.
Description Contains a list of the recent AULTS g308751 machine faults. Refer to Figure 35 the Service Manual or your authorized Toro distributor 1. Battery level and hour 2. Engine temperature for more information on the meter screen screen menu.
Page 40
The factory default PIN code for you machine Indicates if the PTO is active. is “1234”. Indicates if the engine NGINE If you changed the PIN code and forgot the code, inputs/outputs are active. contact your authorized Toro distributor for assistance.
Do not operate the machine while ill, tired, or • Use accessories, attachments, and replacement under the influence of alcohol or drugs. parts approved by Toro only. • Use your full attention while operating the machine. Do not engage in any activity that Rollover Protection System causes distractions;...
Roll Bar • Identify hazards at the base of the slope. • A cab installed by Toro is a roll bar. If there are hazards, mow the slope with a pedestrian-controlled machine. • Always wear your seat belt.
Move the PTO switch to the O position. Rotate the key switch to the O position and remove the key from the switch. After Operation After Operation Safety General Safety • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position.
Page 44
Press the lift switch to raise the cutting unit to the T position. RANSPORT Engage the parking brake, shut off the engine, and remove the key. Remove the pins from the height-of-cut plates (Figure 38). g298276 Figure 40 g258474 Figure 38 Rotating the Cutting Unit to the 1.
g297087 Figure 43 1. Traction pump 2. Bypass valve Use an 18 mm (11/16 inch) box-end wrench to loosen the bypass valve, then open the valve 3 revolutions maximum. Important: Do not start or run the engine when the valve is set to the bypass position. After towing and before starting the engine, tighten the bypass valve to 20 N·m (15 ft-lb).
If the cutting units are in the transport position, use Note: Download a free copy of the electrical or the positive mechanical lock (if equipped) before hydraulic schematic by visiting www.Toro.com and you leave the machine unattended. searching for your machine from the Manuals link on the home page.
Maintenance Service Maintenance Procedure Interval • Torque the wheel-lug nuts. • Inspect the cooling-system hoses. Every 200 hours • Adjust the PTO-clutch gap. • Change the engine oil and filter (when the machine is used in dirty or dusty conditions) [Models 31900 and 31901 only]. •...
Maintenance Check Item For the week of: Mon. Tues. Wed. Thurs. Fri. Sat. Sun. Check for unusual engine noises. Check for unusual operating noises. Check the hydraulic hoses for damage. Check for fluid leaks. Check the tire pressure. Check the instrument operation.
Raising the Hood Chock the 2 rear wheels with chocks to prevent the machine from moving. Release the straps from each side of the Position the jack securely under the desired machine (Figure 46). jacking point. After raising the front of the machine, use an appropriate jack stand under the machine frame to support the machine.
Lubrication Greasing the Bearings and Bushings Service Interval: Before each use or daily—Grease the PTO driveshaft (cross-bearings and telescoping splines). Every 50 hours—Grease the bearings and bushings. The machine has grease fittings that you must g303694 Figure 48 lubricate regularly with No. 2 lithium grease. 1.
Page 51
g285509 Figure 50 Front of the machine 1. Attachment pivot hubs 3. Lift-arm pivot hubs 2. Lift-cylinder bushings • Rear of the machine (Figure 51): – Axle spindle hubs (2) – Hydraulic-cylinder ball joint (2) g353292 Figure 51 Rear of the machine (bumper removed) 1.
• Alternate oil: SAE 10W-30 or 5W-30 (all temperatures) Changing the Engine Oil and Filter Toro Premium Engine Oil is available from your authorized Toro distributor in either 15W-40 or 10W-30 Service Interval: Every 500 hours—Change the viscosity grades. engine oil and filter.
Page 53
g297639 Figure 53 Change the engine-oil filter as shown in Figure g031261 Note: Figure 54 Ensure that the oil-filter gasket touches the engine, and then an extra 3/4 turn is completed.
Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air-cleaner restriction indicator and replace the filter elements if necessary. Every 250 hours—Change the air-cleaner element. Check the air-cleaner body for damage, which could cause an air leak. Replace the body if it is damaged. Check the intake system for leaks, damage, or loose hose clamps Service the air-cleaner element only when the...
Servicing the Fuel/Water Fuel System Separator Maintenance Service Interval: Every 400 hours DANGER Replace the fuel/water separator as shown in Figure Under certain conditions, diesel fuel and fuel vapors are highly flammable and explosive. A fire or explosion from fuel can burn you and others and can cause property damage.
Servicing the Fuel Filter Service Interval: Every 400 hours Servicing the Fuel Filter Models 31900 and 31901 Rotate the fuel-valve lever to the O position (Figure 59). Clean the area around the fuel-filter head (Figure 59). g326083 Figure 60 1. Fuel filter 2.
Cleaning the Fuel Tank Electrical System Maintenance Service Interval: Yearly—Drain and clean the fuel tank Drain and clean tank if fuel system becomes Electrical System Safety contaminated or if you store the machine for an extended period. Use clean diesel fuel to flush out •...
Disconnecting the Battery Connecting the Battery WARNING WARNING Battery terminals or metal tools could short Incorrect battery cable routing could damage against metal components, causing sparks. the machine and cables, causing sparks. Sparks can cause the battery gasses to Sparks can cause the battery gasses to explode, resulting in personal injury.
Wash the entire case with a solution of baking soda and water. Coat both battery posts and cable connectors with Grafo 112X (skin-over) grease (Toro Part Number 505-47) to prevent corrosion. Slide the rubber insulator over the positive terminal. g285614 Close the battery cover.
Page 60
Refer to the Traction-Unit Fuse Block (page 60) table for a description of each fuse on the traction-unit fuse block (Figure 66): g285656 Figure 67 1. Fuse box cover 3. Cab fuses 2. Thumb screw g289587 Figure 66 Refer to the Cab Fuse Block (page 60) table for a description of each fuse on the cab fuse block...
Aligning the PTO Driveshaft Drive System Maintenance If you separate the PTO-driveshaft telescoping end the from the clutch end, ensure that the markings are aligned (Figure 71) when you install the telescoping end. The end yokes should also be aligned as shown Torquing the Wheel-Lug Figure Nuts...
Cooling System • Preferred: When mixing coolant from a concentrate, mix it with distilled water. Maintenance • Preferred option: If distilled water is not available, use a pre-mix coolant instead of a concentrate. • Minimum requirement: If distilled water and Cooling System Safety pre-mix coolant are not available, mix concentrated coolant with clean drinkable water.
If the coolant is not visible at the C mark or below when cold, remove the expansion-tank cap and add the recommended replacement coolant [refer to Coolant Specification (page 62)] as required to bring the level to the C mark. Important: Do not use water only or alcohol-based coolants.
Brake Maintenance Checking and Adjusting the Parking Brake Service Interval: Every 400 hours Checking the Parking Brake Place jack stands under the front of the machine; refer to Raising the Front of the Machine (page 48). Remove the front wheels. g299613 Figure 76 Move the parking brake to the D...
Belt Maintenance Replacing the Traction Belt Checking the Alternator-Belt Tension Service Interval: After the first 10 hours After the first 50 hours Every 100 hours Proper tension of the belt allows 10 mm (3/8 inch) of deflection when a force of 4.5 kg (10 lb) is applied on the belt midway between the pulleys.
Controls System Maintenance Adjusting the PTO-Clutch Service Interval: Every 200 hours Allow the engine to cool. Raise the engine hood. Adjust the air gap so that a 0.3 mm (0.012 inch) feeler gauge slides in between the clutch lining and friction plate with light pressure (Figure 80).
Page 67
Move the traction pedal fully forward (Figure 81). Note: The traction pedal should contact the traction-pedal stop before the pump reaches full stroke. g320591 Figure 82 1. Jam nut (bottom of the footrest plate) Move the traction pedal to the full forward position (Figure 81).
Toro. This fluid is compatible with the elastomers used Hydraulic Fluid in Toro hydraulic systems and is suitable for a wide-range of temperature conditions. This fluid is Specifications compatible with conventional mineral oils, but for...
g286314 Figure 84 If the fluid level is below the appropriate lower mark (per your equipped attachment; refer g285821 to step 5) on the dipstick, add the specified Figure 83 hydraulic fluid into the tank. Repeat steps through until the fluid level appears between the appropriate 2 marks on the dipstick.
If the hydraulic fluid becomes contaminated, contact Install the drain plug when the hydraulic fluid your authorized Toro distributor; the system must be stops draining. flushed. Contaminated fluid looks milky or black when Install the reservoir dipstick and cap. compared to clean fluid.
Cab Maintenance Cleaning the Cab Important: Use care around the cab seals (Figure 86). If you are using a pressure washer, keep the washer wand at least 0.6 m (2 ft) away from the machine. Do not use the pressure washer directly on the cab seals or under the rear overhang.
Filling the Windshield-Wiper-Fluid Reservoir Note: The windshield-wiper-fluid reservoir is located next to the engine on the right side of the machine. Remove the cap (Figure 90) on the reservoir. g032951 Figure 88 1. Latch-mount assembly 3. Screen cover 2. Condenser filter Replacing the Dome Light Note: Refer to the Parts Catalog for the appropriate...
Storage Storage Safety • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it. • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or other appliance.
Page 74
The Toro Company (“Toro”) respects your privacy. When you purchase our products, we may collect certain personal information about you, either directly from you or through your local Toro company or dealer. Toro uses this information to fulfil contractual obligations - such as to register your warranty, process your warranty claim or to contact you in the event of a product recall - and for legitimate business purposes - such as to gauge customer satisfaction, improve our products or provide you with product information which may be of interest.
Page 75
While the exposure from Toro products may be negligible or well within the “no significant risk” range, out of an abundance of caution, Toro has elected to provide the Prop 65 warnings. Moreover, if Toro does not provide these warnings, it could be sued by the State of California or by private parties seeking to enforce Prop 65 and subject to substantial penalties.
Page 76
Countries Other than the United States or Canada Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor's service or have difficulty obtaining guarantee information, contact your Authorized Toro Service Center.
Need help?
Do you have a question about the Groundsmaster 3300 and is the answer not in the manual?
Questions and answers