Form No. 3451-553 Rev A Groundsmaster® 4500-D or 4700-D Rotary Mower Model No. 30893—Serial No. 410500000 and Up Model No. 30899—Serial No. 410500000 and Up Register at www.Toro.com.
(Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. Please refer to the engine manufacturer’s information included with the machine. Introduction g000502 Figure 2 This machine is a ride-on, rotary-blade lawn mower intended to be used by professional, hired operators in commercial applications. It is primarily designed for cutting grass on well-maintained lawns in parks, sports fields, and on commercial grounds.
Contents Using the Cutting-Unit Storage Lanyard............ 37 Using the Transport Latches ............................. 38 Hauling the Machine ......................................... 38 Pushing or Towing the Machine ........................ 38 Locating the Tie-Down Points ........................... 39 Maintenance ........................................................... 40 Maintenance Safety.......................................... 40 Recommended Maintenance Schedule(s) ...........
Safety Servicing the Hydraulic Fluid ............................ 62 Checking the Hydraulic Lines and Hoses............................................................ 65 Cutting Unit Maintenance ..................................... 66 Removing the Cutting Units .............................. 66 Installing the Cutting Units ................................ 66 Servicing the Front Roller ................................. 66 Blade Maintenance .............................................. 67 Blade Safety ...
decal106-6754 106-6754 1. Warning—do not touch the hot surface. decal112-5297 112-5297 2. Cutting/dismemberment hazard, fan and entanglement hazard, belt—stay away from moving parts. 1. Warning—read the Operator's Manual; do not operate the machine unless you are trained. 2. Warning—read the Operator's Manual before towing the machine. 3.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. decal117-4764 117-4764 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. Wear eye protection. 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 1.
decal121-3887 121-3887 1. Read the Operator’s Manual. decal120-8947 120-8947 1. Warning—read the Operator’s Manual. 4. If the roll bar is raised, wear the seat belt. decal127-3700 127-3700 For Groundsmaster 4700 Only 2. There is no rollover 5. If the roll bar is lowered, protection when the roll do not wear the seat belt. bar is down. 3. There is rollover protection 6. Drive slowly when turning. when the roll bar is up. 1. Raise the left cutting unit. 4. Set the cruise control. 2.
decal136-3185 136-3185 1. Headlights—Off 5. Low 2. Headlights—On 6. Lower the left cutting unit. 3. High/Low—Auto 7. Lower the center cutting unit. 8. Lower the right cutting unit. 4. Traction controls decal136-3711 136-3711 1. Check every 8 hours. 14. Fan belt tension 2. Read the Operator’s Manual for lubrication information. 3. Tire pressure 15. Engine air filter 4. Engine-coolant level 17. Hydraulic-fluid level 5. Engine oil 18. Read the Operator’s Manual. 19. Fluid specification 6.
decal145-5257 145-5257 1. TEC—7.5 A 2. Power—10 A 6. Power seat—10 A 7. Engine—10 A 3. InfoCenter—2 A 4. Auxiliary power—10 A 8. TEC—2 A 9. Telematics—10 A 5. Work lights—10 A 10. Cab—60 A decal121-3627 121-3627 1.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description 1 2 3 Use Qty. No parts required – Adjust the roller scraper (optional). No parts required – Install the mulching baffle (optional). No parts required – Prepare the machine. Media and Additional Parts Description Use Qty. Operator's Manual 1 Review before operating the machine. Engine owner’s manual 1 Refer to the manual for additional maintenance information.
1 2 Adjusting the Roller Scraper Installing the Mulching Baffle Optional Optional No Parts Required No Parts Required Procedure Procedure The optional rear roller scraper functions best when there is an even gap of 0.5 to 1 mm (0.02 to 0.04 inch) between the scraper and the roller. Contact your authorized Toro distributor for the correct mulching baffle. 1. Loosen the grease fitting and the mounting screw (Figure 3). 1.
3 Preparing the Machine No Parts Required Procedure 1. Park the machine on a level surface. 2. For Groundsmaster 4500 and 4700 machines, release the No. 4 and No. 5 cutting-unit cables (Figure 27). 3. For Groundsmaster 4700 machines, release the No. 6 and No. 7 cutting-unit latches (Figure 30). 4. Lower the cutting units. 5. Engage the parking brake. 6. Shut off the engine and remove the key. 7. Check the tire pressure before use; refer to Checking the Tire Pressure (page 20).
Tilt-Steering Pedal Product Overview To tilt the steering wheel toward you, press the foot pedal down, pull the steering tower toward you to the most comfortable position, and release the pedal (Figure 5). To move the steering wheel away from you, press the foot pedal and release it when the steering wheel reaches the desired operating position. Controls Key Switch The key switch (Figure 6) has 3 positions: OFF, ON/PREHEAT , and START . g009979 Figure 5 1. Brake pedal 4. Traction pedal 2.
Note: If you have the switch in the H/L AUTO position, you cannot lower the decks from the fully-raised position unless the traction pedal is in neutral and the machine is stopped. Cruise-Control Switch The cruise-control switch locks in the cruise control to maintain the desired ground speed (Figure 7). Pressing the rear of the switch turns off the cruise control, the middle position of the switch enables the cruise-control function, and the front of the switch sets the desired ground speed.
Armrest Adjustment Knob Rotate the knob to adjust the armrest angle (Figure 9). Seat-Back Adjustment Lever Move the lever to adjust the seat-back angle (Figure 9). Weight Gauge The weight gauge indicates when the seat is adjusted to the operator’s weight (Figure 9). Adjust the height by positioning the suspension within the range of the green region. Weight Adjustment Lever Use this lever to adjust the seat to your weight (Figure 9).
Specifications g322289 Figure 10 1. Cutting unit 1 3. Cutting unit 3 5. Cutting unit 5 2. Cutting unit 2 4. Cutting unit 4 6. Cutting unit 6 (4700 only) 16 7.
Machine Specifications Specifications Table Description 4500-D Figure 10 reference 4700-D Figure 10 reference Width of cut 280 cm (110 inches) D 380 cm (150 inches) F Cutting units down 286 cm (113 inches) E 391 cm (154 inches) G Cutting units up (transport) 224 cm (88 inches) A 224 cm (88 inches) A Front 224 cm (88 inches) B 224 cm (88 inches) B Rear 141 cm (56 inches) M 141 cm (56 inches) M 226 cm (88.8 inches) C 226 cm (88.
Checking the Engine-Oil Level Operation Note: Determine the left and right sides of the machine from the normal operating position. Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine-Oil Level (page 47). Before Operation Checking the Cooling System Before Operation Safety General Safety Before you start the engine and use the machine, check the cooling system; refer to Checking the Cooling System (page 59).
• Monitor seals, hoses, gaskets in contact with fuel • Never keep fuel in containers with zinc plating on as they may degrade over time. the inside. • Fuel filter plugging may occur for a time after you • Do not use fuel additives. convert to biodiesel blends. Petroleum Diesel • For more information on biodiesel, contact your authorized Toro distributor. Cetane rating: 45 or higher Sulfur content: Low sulfur (<500 ppm) Adding Fuel Fuel Table Diesel fuel specification Location ASTM D975 No.
Checking the Tire Pressure Service Interval: Before each use or daily The correct air pressure in the tires is 138 kPa (20 psi). Important: Maintain the recommended pressure in all tires to ensure a good quality of cut and proper machine performance. Do not under-inflate the tires. Check the air pressure in all the tires before operating the machine. g033359 Figure 14 Rear Wheels WARNING Failing to maintain proper torque of the wheel lug nuts could result in personal injury.
CAUTION If safety interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine. The interlock switches are designed to shut off the machine when you rise from the seat when the traction pedal is pressed.
Selecting a Blade Standard Combination Sail This blade was designed to provide excellent lift and dispersion in almost any condition. If more or less lift and discharge velocity is required, consider a different blade. Attributes: Excellent lift and dispersion in most conditions Angled Sail The blade generally performs best in lower heights of cut—1.9 to 6.4 cm (3/4 to 2-1/2 inches). Attributes: • Discharge remains more even at lower heights of cut.
Choosing Accessories Optional Equipment Configurations Angle Sail Blade High-Lift, Parallel-Sail Blade (Do not use with the mulching baffle) Mulching Baffle Roller Scraper Grass Cutting: 1.9 to 4.4 cm (3/4 to 1-3/4 inches) height of cut Recommended in most applications May work well in light or sparse turf Grass Cutting: 5 to 6.
Using the InfoCenter LCD Display InfoCenter Icon Description SERVICE DUE The InfoCenter LCD display shows information about your machine, such as the operating status, various diagnostics and other information about the machine (Figure 17). There is a splash screen and main information screen of the InfoCenter. You can switch between the splash screen and main information screen at any time by pressing any of the InfoCenter buttons and then selecting the appropriate directional arrow.
InfoCenter Icon Description (cont'd.) InfoCenter Icon Description (cont'd.) Engine Engine start is denied Key switch Engine shutdown Cutting units are lowering Engine coolant is too hot Cutting units are raising Hydraulic fluid is too hot PIN code Sit down or engage parking brake Hydraulic fluid temperature Accessible only by entering PIN CAN bus Using the Menus InfoCenter To access the InfoCenter menu system, press the menu access button while at the main screen.
Service Menu Item Description Hours Lists the total number of hours that the machine, engine, and fan have been on, as well as the number of hours the machine has been transported and overheated Counts Counterbalance Controls the amount of counterbalance applied by the cutting units Turnaround Turns Turnaround on and off *Only operator-faced text is translated. Faults, Service, and Diagnostics screens are service-faced. Titles are in the selected language, but menu items are in English.
Viewing and Changing the Protected Menu Settings 1. In the Protected Menu, scroll down to Protect Settings. 2. To view and change the settings without entering a PIN code, use the right button to change the Protect Settings to OFF. 3. To view and change the settings with a PIN code, use the left button to select ON, set the PIN code, and turn the key to the OFF position and then to the ON position.
Turning the Smart Power ON/OFF 1. In the settings menu, scroll down to Smart Power. 2. Press the right button to switch between ON and OFF. 3. Press the left button to exit. During Operation During Operation Safety General Safety • The owner/operator can prevent and is responsible Setting the Counterbalance 1. In the Settings Menu, scroll down to Counterbalance. 2. Press the right button to select counterbalance and change between the LOW, MEDIUM, and HIGH settings.
• Lower a folding roll bar temporarily only when • Before you leave the operator’s position, do the following: – Park the machine on a level surface. • – Disengage the power takeoff and lower the attachments. • – Engage the parking brake. – Shut off the engine and remove the key. – Wait for all movement to stop. necessary. Do not wear the seat belt when the roll bar is folded down. Be aware that there is no rollover protection when a folded roll bar is in the down position.
Understanding the Operating Characteristics of the Machine operate in low speed range. This setting is preferable for operation in a shop area, loading or unloading from a trailer, climbing steep inclines, or any other operation where the higher traction speeds of the high speed range is not desired. • This machine has an automotive-style throttle that • If an obstacle is in the way, lift the cutting units to is controlled by the traction pedal. mow around it.
Using the High and Low Speed Range Switch This machine is equipped with 2 traction speed ranges; low and high. The speed range switch allows you to select the following positions (Figure 20): • High/Low Auto range: Selecting the H/L AUTO position allows the machine to automatically select between the low and high speed ranges. The H/L AUTO position is comparable to selecting D (drive) in your car with an automatic transmission.
is limited from 0 to 75% and matched to the full stroke of the traction pedal. This setting increases the traction pedal resolution, resulting in improved control. How far you move the traction pedal changes how much the machine's speed changes. Using the Brake Pedals Important: In emergency braking situations, remove your foot from the traction pedal and then press the brake pedals. g321522 Figure 21 1.
Adjusting the Cruise Control Speed Operating the Cruise Control After the cruise control switch is enabled on the console Figure 24, use the InfoCenter to adjust the speed setting of the cruise control (Figure 25). Setting the Cruise Control The cruise-control switch locks in the cruise control to maintain the desired ground speed.
Understanding the Acceleration Mode appearance and traction capability in most turf conditions. Decreasing the counterbalance setting can produce a more stable cutting unit but can decrease the traction capability. Increasing the counterbalance setting can increase the traction capability, but may result in a poor after-cut appearance; refer to Accessing Protected Menus (page 26).
When the temperature is less than -7°C (20°F), the starter motor can be run for 30 seconds on then 60 seconds off for 2 attempts. 7. Pull the PTO switch to engage the cutting units. Note: The engine speed automatically rises to high idle when you lower the cutting units and activate the PTO switch. Important: Shut off the engine and allow the engine to cool before you check for oil leaks, loose parts, or other malfunctions. 8.
when you maintain turf on a regular schedule to avoid removing more than 25 mm (1 inch) of growth per cutting. When you cut too much growth with the mulching baffles installed, the after-cut appearance may deteriorate and the observed power to cut the turf increases. The mulching baffles also perform well for shredding leaves in the fall. Selecting the Proper Height-of-Cut Setting to Suit Conditions g036843 Remove no more than approximately 25 mm (1 inch), or 1/3 of the grass blade when cutting.
Securing the Cutting Units After Operation 1. Ensure that the PTO is disengaged. General Safety 2. Park the machine on a level surface. • Shut off the engine, remove the key, and wait 3. Engage the parking brake. 4. Fully raise the cutting units. 5. Align the lanyard to the carrier shaft of the lift arm for the forward outer-cutting unit (Figure 28). • • • • • • for all movement to stop before you leave the operator’s position.
4. With the cutting units lowered, slip the loop of the lanyard into the slot in the reinforcement plate of the roller support (Figure 29). g225485 Figure 29 1. Reinforcement-plate slot (roller support) g038610 2. Lanyard loop Figure 30 Using the Transport Latches Hauling the Machine Groundsmaster 4700 Only • Use the 2 rear-transport latches for the No.
2. Locating the Tie-Down Points Rotate each valve 3 turns counter-clockwise to open and allow the fluid to bypass internally. Note: Do not open the valve more than 3 turns. Because fluid is bypassed, you can move the machine slowly without damaging the transmission. Note: Use properly-rated DOT-approved straps in 4 corners to tie down the machine. • On each side of the frame by the operator’s platform (Figure 33) • On the rear bumper (Figure 33) g036666 g036664 Figure 32 g368441 Figure 31 1.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Important: Refer to your engine owner’s manual for additional maintenance procedures. Note: Download a free copy of the electrical or hydraulic schematic by visiting www.Toro.com and searching for your machine from the Manuals link on the home page.
Maintenance Service Interval Maintenance Procedure Every 200 hours • Torque the wheel lug nuts. Every 250 hours • Change the engine oil and filter. Every 400 hours • Service the air cleaner (earlier if the air-cleaner indicator shows red, and more frequently in extremely dirty or dusty conditions). • Inspect the fuel lines and connections. • Replace the fuel-filter canister. • Replace the engine fuel filter. • Check for end-play in the planetary drives.
For the week of: Maintenance Check Item Monday Tuesday Wednesday Thursday Friday Saturday Check for unusual operating noises. Check the hydraulic-fluid level. Check the hydraulic hoses for damage. Check for fluid leaks. Check the fuel level. Check the tire pressure. Check the instrument operation. Check the height-of-cut adjustment. Lubricate all the grease fittings.2 Clean the machine. Touch up any damaged paint.
Pre-Maintenance Procedures Lifting the Machine Use the following as points to lift the machine: Front of the machine—at the frame of the machine, forward of the wheel-drive motors (Figure 34) Important: Do not support the machine at the wheel-drive motors. Keep the lifting equipment clear of hydraulic tubing and hoses. g036671 Figure 35 Opening the Hood Tilt the hood to access the chassis as shown in Figure 36.
Lubrication Accessing the Hydraulic Lift Compartment Greasing the Bearings and Bushings Tilt the seat to access the hydraulic lift compartment as shown in Figure 37. Service Interval: Every 50 hours (also after every washing). Grease specification: No.
• Cutting-unit spindle-shaft bearings (2 per cutting • Steering-cylinder ball joints (2) as shown in Figure unit) as shown in Figure 42 40 Note: You can use either fitting, whichever is more accessible. Pump grease into the fitting until a small amount appears at the bottom of the spindle housing (under the cutting unit). g009708 Figure 42 g009706 Figure 40 1.
Engine Maintenance Engine Safety • Shut off the engine and remove the key before checking the oil or adding oil to the crankcase. g198631 • Do not change the governor speed or overspeed the engine. Servicing the Air Cleaner Service Interval: Every 400 hours Check the air-cleaner body for damage which could cause an air leak. Replace it if it is damaged. Check the whole intake system for leaks, damage, or loose hose clamps.
If the engine oil level is above the Full mark, change the engine oil. The best time to check the engine oil is when the engine is cool before it has been started for the day. If it has already been run, allow the oil to drain back down to the sump for at least 10 minutes before checking. If the oil level is at or below the Add mark on the dipstick, add oil to bring the oil level to the Full mark. Do not overfill the engine with oil.
Crankcase Oil Capacity Fuel System Maintenance Approximately 5.7 L (6 US qt) with the filter. Changing the Engine Oil and Filter DANGER Service Interval: Every 250 hours 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. Note: To reset the service due indicator in the Infocenter; refer to Setting the Service Due Timer (page 28). 1.
Replacing the Fuel-Filter Canister Servicing the Fuel-Water Separator Service Interval: Every 400 hours—Replace the fuel-filter canister. Replace the fuel-filter canister as shown in Figure 51. Prime the filter and the lines to the high pressure pump after replacing the filter; refer to Priming the Fuel System (page 51).
Servicing the Fuel Filter Cleaning the Fuel-Pickup Tube Screen Service Interval: Every 400 hours 1. Clean the area around the fuel-filter head (Figure 52). The fuel-pickup tube, located inside the fuel tank, is equipped with a screen to help prevent debris from entering the fuel system. Remove the fuel-pickup tube and clean the screen as required. 1. Remove the hose clamp that secures the fuel supply hose to the fitting of the fuel-pickup tube (Figure 53). g028799 Figure 52 1. Fuel-filter head 2.
Priming the Fuel System Electrical System Maintenance Prime the fuel system before starting the engine for the first time, after running out of fuel, or after fuel system maintenance (e.g., draining the filter/water separator, replacing a fuel hose). Electrical System Safety To prime the fuel system, perform the following steps: 1. Ensure that fuel is in the fuel tank. 2. Perform the following steps to prime the filter and the lines to the high pressure pump to prevent wear or damage to the pump: A.
2. Remove the rubber boot from the positive terminal and inspect the battery. 3. Remove the negative cable (black) from the negative (-) terminal and the positive cable (red) from the positive (+) terminal of the battery (Figure 54). WARNING Incorrect battery cable routing could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable.
Locating the Fuses The fuse block for the machine is located in the right storage box g010255 Figure 57 1. Fuses decal136-3338 3. Figure 55 1. Loosen the latch for the cover of the right storage box and raise the cover (Figure 56) to expose the fuse block (Figure 57). g009985 Figure 56 1. Latch 2. 2. Right storage box Replace the open fuse(s) as needed (Figure 57). 53 Close the cover of the right storage box and secure the cover with the latch (Figure 56).
Drive System Maintenance g028798 Figure 59 1. Front drive wheels 4. Repeat step 3 for the other drive wheel. 5. If either wheel moves, contact your authorized Toro distributor to have the planetary drive rebuilt. g225611 Figure 58 Checking the Planetary Gear-Drive Lubricant Checking for End-Play in the Planetary Drives Service Interval: Every 400 hours (check if you notice external leakage).
The oil level should be at the bottom of the check-plug hole. g225609 Figure 62 g225606 Figure 61 1. Check-plug hole 2. Check plug 1. Drain-plug hole 3. Check plug 2. Fill plug 4. Drain plug 3. If the oil level is low, remove the fill plug at the 12 o’clock position and add oil until it begins to flow out of the hole at the 3 o’clock position. 3. Place a drain pan under the planetary hub, remove the drain plug at the 6 o’clock position, and allow the oil to fully drain (Figure 62). 4.
Filling the Planetary-Gear-Drive with Lubricant 1. Checking the Rear Axle and Gearbox for Leaks Through the fill-plug hole, slowly fill the planetary with 0.65 L (22 fl oz) of high quality SAE 85W-140 wt gear lube. Service Interval: Before each use or daily Visually inspect the rear axle and rear-axle gearbox for leaks. Important: If the planetary fills before the 0.
lube or until the lubricant is up to the bottom of the hole. 7. Install the check plug. Checking the Rear-Axle-Gearbox Lubricant Service Interval: Every 400 hours g009716 The gear box is filled with SAE 85W-140 gear lube. The capacity is 0.5 L (16 fl oz). Visually inspect for leaks daily. Figure 67 2. Fill plug 1. Check plug Changing the Rear-Axle Lubricant 1. Park the machine on a level surface, engage the parking brake, lower the cutting units, shut off the engine, and remove the key. 2.
Cooling System Maintenance Note: The front measurement must be 3 mm (1/8 inch) less than the rear measurement. Cooling System Safety • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets. • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns. – Always allow the engine to cool at least 15 minutes before removing the radiator cap. g009169 Figure 70 1. Front of the machine 2.
Important: Coolant concentration should be a 50/50 mixture of coolant to water. • Preferred: When mixing coolant from a concentrate, mix it with distilled water. • Preferred option: If distilled water is not available, use a pre-mix coolant instead of a concentrate. • Minimum requirement: If distilled water and pre-mix coolant are not available, mix concentrated coolant with clean drinkable water.
Cleaning the Cooling System Service Interval: Before each use or daily—Remove debris from the engine area, oil cooler, and radiator (clean them more frequently in dirty conditions). This machine is equipped with a hydraulically driven fan drive system that automatically (or manually) reverses to reduce oil cooler/radiator and screen debris buildup. While this feature can help reduce the time required to clean oil cooler/radiator, it does not eliminate the need for routine cleaning.
Brake Maintenance Belt Maintenance Adjusting the Service Brakes Servicing the Alternator Belt Adjust the service brakes when there is more than 25 mm (1 inch) of free travel of the brake pedal, or when the brakes do not work effectively. Free travel is the distance the brake pedal moves before you feel braking resistance. Service Interval: Every 100 hours 1. Park the machine on a level surface, engage the parking brake, lower the cutting units, shut off the engine, and remove the key. 2.
Hydraulic System Maintenance Servicing the Hydraulic Fluid Hydraulic System Safety Hydraulic Fluid Specifications The reservoir is filled at the factory with high-quality hydraulic fluid. Check the level of the hydraulic fluid before you first start the engine and daily thereafter; refer to Checking the Hydraulic-Fluid Level (page 63). • Seek immediate medical attention if fluid is injected into skin. Injected fluid must be surgically removed within a few hours by a doctor.
maximum biodegradability and performance, the hydraulic system should be thoroughly flushed of conventional fluid. The oil is available in 19 L (5 US gallon) pails or 208 L (55 US gallon) drums from your authorized Toro distributor. Checking the Hydraulic-Fluid Level g198718 Service Interval: Before each use or daily 1. Park the machine on a level surface, engage the parking brake, lower the cutting units, shut off the engine, and remove the key. 2. Check the hydraulic-fluid level (Figure 77).
Changing the Hydraulic Fluid Use Toro replacement filters Part No. 94-2621 for the rear (cutting units) of the machine and Part No. 75-1310 for the front (charge) of the machine. Service Interval: Every 2,000 hours—If you are using the recommended hydraulic fluid, change the hydraulic fluid. Important: Using another filter may void the warranty on some components. 1.
Checking the Hydraulic Lines and Hoses Service Interval: Before each use or daily Every 2 years Inspect the hydraulic lines and hoses daily for leaks, kinked lines, loose mounting supports, wear, loose fittings, weather deterioration, and chemical deterioration. Make all necessary repairs before operating the machine. g036709 WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury. • Seek immediate medical help if fluid is injected into skin.
Cutting Unit Maintenance Installing the Cutting Units Removing the Cutting Units 1. Park the machine on a level surface, engage the parking brake, lower the cutting units, shut off the engine, and remove the key. 2. Disconnect and remove the hydraulic motor from the cutting unit (Figure 80). Cover the top of the spindle to prevent contamination. 1. Move the cutting unit into position in front of the machine. 2. Slide the cutting unit-carrier frame onto the lift-arm-pivot pin (Figure 81).
Blade Maintenance Assembling the Front Roller 1. Press the first bearing into the roller housing (Figure 82). Press on the outer race only or equally on the inner and outer race. 2. Insert the spacer (Figure 82). 3. Press the second bearing into the roller housing (Figure 82). Pressing equally on the inner and outer race until the inner race contacts the spacer. 4. Install the roller assembly into the cutting-unit frame. 5. Verify that there is no more than a 1.5 mm (0.
6. side. Adjust the other side to within ± 2.2 mm (0.090 inch) of the correct side. Compare the 12 o’clock measured height to the height-of-cut setting. It should be within 0.7 mm (0.030 inch). The 3 and 9 o’clock heights should be 1.6 to 6.0 mm (0.060 to 0.240 inch) higher than the 12 o’clock setting and within 2.2 mm (0.090 inch) of each other. If any of these measurements are not within specification, proceed to Adjusting the Blade Plane (page 68).
Inspecting and Sharpening the Cutting Unit Blade(s) Both cutting edges and the sail, which is the turned-up portion opposite of the cutting edge, contribute to a good quality of cut. The sail is important because it lifts the grass up straight, thereby producing an even cut. However, the sail gradually wears down during operation. As the sail wears down, the quality of cut degrades, although the cutting edges are sharp. The cutting edge of the blade must be sharp so that the grass is cut rather than torn.
Storage Note: Remove the blades and sharpen them on a grinder. After sharpening the cutting edges, install the blade with the anti-scalp cup and blade bolt; refer to Removing and Installing the Cutting-Unit Blade(s) (page 68). 4. Storage Safety • Shut off the engine, remove the key, and wait Ensure that the blade is straight and parallel; lay the blade on a level surface and check its ends.
2. Remove and discard the oil filter. Install a new oil filter. 3. Refill the oil pan with designated quantity of motor oil. 4. Turn the key in the switch to the ON position, start the engine, and run it at idle speed for approximately 2 minutes. 5. Turn the key in the switch to the OFF position. 6. Thoroughly drain all fuel from the fuel tank, lines, and the fuel filter/water separator assembly. 7. Flush the fuel tank with fresh, clean diesel fuel. 8. Secure all fuel-system fittings. 9.
The Toro Warranty Two-Year or 1,500 Hours Limited Warranty Parts Conditions and Products Covered The Toro Company warrants your Toro Commercial product (“Product”) to be free from defects in materials or workmanship for 2 years or 1,500 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).
