Form No. 3328-357 Mid-Size Mower ProLine Hydro 15 hp with 48 Side Discharge Mower Model No. 30526—Serial No.
Warning Setting up the Hydro Linkage . . . . . . . . . . . . . . . . Checking the Hydraulic Fluid . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting and Stopping the Engine . . . . . . . . . . . . . . Operating Neutral Locks . . . . . . . . . . . . . . . . . . . .
Introduction Safety Read this manual carefully to learn how to operate and maintain your product properly. The information in this manual can help you and others avoid injury and product damage. Although Toro designs and produces safe products, you are responsible for operating the product properly and safely. This machine meets or exceeds the B71.4 1999 specifications of the American National Standards Institute, in effect at time of production.
• Slow down and use caution when making turns and crossing roads and sidewalks. Stop blades if not mowing. • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. • Use only an approved container • Be aware of the mower discharge direction and do not point it at anyone. • Never remove gas cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke. • Do not operate the mower under the influence of alcohol or drugs.
Toro Mower Safety DO The following list contains safety information specific to Toro products and other safety information you must know. • Remove obstacles such as rocks, tree limbs, etc. from the mowing area. Watch for holes, ruts or bumps. Tall grass can hide obstacles. This product is capable of amputating hands and feet and throwing objects. Always follow all safety instructions to avoid serious injury or death. • Watch for holes, ruts or bumps. Tall grass can hide obstacles.
Slope Chart 7
Safety and Instruction 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 lost. 1-523552 1-430005 66-1340 54-9220 67-5360 63-8440 1.
95-2814 99-3943 1. Engine 95-5537 1. Read the Operator’s Manual for instructions on operating the cutting blade 2. Push forward to engage 3. Pull back to disengage 106-2733 1. Fast 2. Continuous variable setting 3. Slow 105-4109 98-0776 105-4110 98-5130 1. Warning—read the Operator’s Manual for instructions on torquing the blade bolt/nut to 75-80 ft.-lb.(102-106 N⋅m).
106-2738 1. Forward 2. Neutral 3. Reverse 4. Engine—stop 5. Engine—run 6. Warning—wear hearing protection. 7. Fast 11 8. Continuous variable setting 9. Slow 10.
Gasoline and Oil Warning Recommended Gasoline Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. Use unleaded regular gasoline suitable for automotive use (85 pump octane minimum). Use leaded regular gasoline if unleaded regular is not available. • Avoid prolonged breathing of vapors. • Keep face away from nozzle and gas tank or conditioner opening. • Keep gas away from eyes and skin.
Setup Note: Determine the left and right sides of the machine from the normal operating position. Loose Parts Note: Use the chart below to verify all parts have been shipped. DESCRIPTION QTY. Caster assemblies 2 Bolt, 3/8 x 3/4 in. 8 Flange nut, 3/8 in. 8 Upper handle 1 Flanged bolt, 3/8 x 1 in. 4 Flanged nut, 3/8 in.
Installing the Front Casters 2. Secure each leg of the upper handle to the rear frame and bracket with two flange bolts (3/8 x 1 in. (26 mm), spring washers and flange nuts (Fig. 3). Tighten until spring washers are compressed. 1. Align the casters with the holes on the top and front of the mower, and insert 8 bolts (3/8 x 3/4 in.) through the mower. Secure the caster with 8 flange nuts (3/8 in.) below the mower (Fig. 2). 3.
4. Loosen the cable clamp and insert the cable behind it (Fig. 5). 6 1 2 5. Pull on the cable and move the throttle control to the Fast position. Tighten clamp screw. 3 Installing the Blade Control (PTO) Rod 4 5 1. From outer side of bell crank, insert end of blade control (PTO) rod thru hole (Fig. 6). 7 1 m–5998 Figure 7 1. 2. 3. 4. 3 5. Control rod 6. Operator Presence Control lever (OPC) 7. Hairpin cotter 4. Thread rod fittings equal distance onto each control rod.
Installing the Control Arm Rods 1. Insert control arm swivel thru hole in speed control crank and secure with hairpin cotter (Fig. 9). 2 1 1 3 3 m–5996 Figure 11 1. Speed control rod 2. Speed control lever 2 3. Install yoke end of speed control rod to the speed control crank with a clevis pin and hairpin cotter (Fig. 12). m–5994 Figure 9 1. Control arm 2. Swivel 3. Hair pin cotter 3. Speed control crank 2. Repeat this procedure for the opposite side. Installing the Speed Control Rod 3 1.
Installing the Fuel Tank Installing the Muffler 1. Apply retaining adhesive, such as Loctite RC 609 or 680, to the threads of the 2 threaded studs (5/16 x 7/8”in.) supplied in loose parts. Install studs into the two left holes in underside of fuel tank 1. Loosen the clamp (Fig. 15). 2. Align the fuel tank to the top of the rear frame, and secure the right side of the fuel tank with 2 bolts (5/16 x 3/4 in.), 2 lock washers (5/16 in.), and 2 washers (5/16 in.) (Fig. 13).
Adjusting the Tracking 7. Run the machine at low idle for 15 minutes to allow any air to purge out of the system and warm fluid. Refer to Starting and Stopping the Engine on page 20. Refer to Adjusting the Tracking on page 39. 8. Recheck the fluid level while the fluid is warm. If required, add fluid to the reservoir until it reaches the hot level of the baffle. Checking the Hydraulic Fluid Check the hydraulic fluid level before engine is first started.
Operation Note: Determine the left and right sides of the machine from the normal operating position. Speed control lever – This machine has a variable speed control with a neutral position. This controls how fast the machine will travel. Think Safety First Drive levers – Release drive levers to engage forward traction operation and squeeze to reverse. Squeeze right side of drive lever to turn right and left side to turn left. Carefully read all the safety instructions and decals in the safety section.
Starting and Stopping the Engine Stopping Starting 2. Move drive levers to neutral and set neutral locks. 1. Connect the wires to the spark plugs. 3. Disengage the blade control (PTO) and move the speed control lever to neutral. 1. Move the throttle lever to “SLOW” (Fig. 20). 2. Open the fuel valve. 4. Let engine idle for 30 to 60 seconds before turning the ignition key “OFF.
Releasing the Neutral Lock 2 1. Squeeze the drive levers back. 1 2. Place thumbs on the upper part of of locks and move them forward until in forward slot (Fig. 21). 2 4 3 1 6 Figure 22 5 1. Handle 2. Operator Presence Control levers (OPC) 3 4 m–5388 Figure 21 1. Handle 2. Neutral lock 3. Neutral position 3. Blade control knob (PTO) 4. Drive Lever Disengaging the Mower Blades (PTO) 4. Drive lever 5. Full speed forward 6.
• The speed control lever is shifted out of neutral without holding OPC levers. 2 • The blade control knob (PTO) is pulled up without holding the OPC levers. Testing the Safety Interlock System Test the safety interlock system before you use the machine each time. If the safety system does not operate as described, have an Authorized Service Dealer repair the safety system immediately. 1 1. Set the neutral locks and place speed control lever in neutral.
Transporting Machines Caution Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary lighting and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets or bystanders avoid injury.
Adjusting the Blade Height 6. Remove the 2 axle adjustment bolts (Fig. 26). Adjust the Blades by using the 4 spacers (1/4 in.) spacers on the blade spindle bolts. This allows a range, in 1/4 in. (6 mm) increments, of cutting height in any axle position. Use the same number of blade spacers on all blades to achieve a level cut (2 above and 2 below, 1 above and 3 below, etc.). 1 1. Disengage the PTO, turn the ignition key to off, and remove the key. E D C B A 2.
Height-of-Cut Chart No. of Spacers Below Caster Number of 1/4 in. Blade Spacers Below Spindle Axle Position 1/2 in. (13mm) 3/16 in. (5 mm) 4 3 2 1 0 A 0 0 1 in. (26 mm) 1–1/4 in. (32 mm) 1–1/2 in. (38 mm) 1–3/4 in. (45 mm) 2 in. (45 mm) A 0 1 1–1/8 in. (29 mm) 1–3/8 in. (35 mm) 1–5/8 in. (41 mm) 1–7/8 in. (48 mm) 2–1/8 in. (55 mm) A 1 0 1–3/8 in. (35 mm) 1–5/8 in. (41 mm) 1–7/8 in. (48 mm) 2–1/8 in. (55 mm) 2–3/8 in. (55 mm) B 0 1 1–3/8 in. (35 mm) 1–5/8 in.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position.
Caution Someone could accidently start the engine and seriously injure you or other bystanders. Disconnect the wires from the spark plugs before you do any maintenance. Set the wire aside so that it does not accidentally contact the spark plug. Servicing the Cutting Blades To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, keep extra blades on hand.
6 5 4 4 MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE 1 m–2539 3 Figure 30 3. Rotate the opposite ends of the blades forward. 2 m–3779 4. Measure from a level surface to the cutting edge of the blades at the same position as in step 1 above. The difference between the dimensions obtained in steps 1 and 2 must not exceed 1/8 in. (3 mm). Figure 31 1. Blade 2. Blade bolt 3. Cone washer Note: If this dimension exceeds 1/8 in. (3 mm), the blade is bent and must be replaced.
Installing the Blades 3 4 1. Place the blade onto the bolt and over the cone washer. Select the proper number of spacers for the height-ofcut and slide the bolt into the spindle (Fig. 31). 2 ÔÔÔÔÔ ÔÔÔÔÔ ÔÔÔÔÔ ÔÔÔÔÔ ÔÔÔÔÔ Important The curved part of the blade must point upward toward the inside of the mower to ensure proper cutting. 2. Install the remaining spacers and secure them with a thin washer and a nut (Fig. 31). 5 1 3. Torque the blade bolt to 75–80 ft.-lb. (101–108 N m).
Cleaning the Paper Element Oil Type: Detergent oil (API service SE/CC, SE, SF, or SG) 1. Lightly tap the element on a flat surface to remove dust and dirt (Fig. 36). Crankcase Capacity: with filter, 57.5 oz. (1.6 l); without filter, 51 oz. (1.4 l) Viscosity: Refer to the table below USE THESE SAE VISCOSITY OILS 1 2 m–4695 Figure 36 1. Paper element Checking the Engine Oil Level 2. Rubber seal 1. Park the machine on a level surface. 2.
Important Do not overfill the crankcase with oil and run the engine; engine damage can result. Note: Change the oil filter more frequently when the operating conditions are extremely dusty or sandy. Changing the Oil 1. Drain the oil from the engine; refer to Changing the Oil, page 31. 2. Remove the old filter (Fig. 39). 1. Start the engine and let it run five minutes. This warms the oil so that it drains better. 2.
2. Tighten the spark plugs to 11 ft.-lb. (15 N.m). 3. Connect the wires to the spark plugs (Fig. 40). Checking the Tire Pressure Service Interval/Specification 1 Maintain the air pressure in the front and rear tires as specified. Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Fig. 42). Check the tires when they are cold to get the most accurate pressure reading.
Applying the Grease This will help ensure adequate cooling and correct engine speed and reduce the possibility of overheating and mechanical damage to the engine. 1. Disengage the PTO, turn the ignition key to off, and remove the key. 2. Wait for all moving parts to stop before leaving the operating position and then chock or block tires. Draining the Fuel Tank 3. Clean the grease fittings with a rag and scrape any paint from the front of the fittings. Danger 4.
Note: Install a new fuel filter while the fuel tank is empty. Refer to Replacing the Fuel Filter, page 34. 4. Locate filter under engine base and place drain pan under filter (Fig. 45). 9. Install the fuel line onto the fuel filter, and slide the hose clamp close to the filter to secure the fuel line. 5. Remove the old filter and wipe the filter adapter gasket surface clean (Fig. 45).
each variable displacement pump. Air in other parts of the hydraulic system will be purged through normal operation once the charge pump is ”primed”. 8. Allow unit to run several minutes after the charge pumps are ”primed” with drive system in the full speed position. 1. Disengage the PTO, turn the ignition key to off, and remove the key. Wait for all moving parts to stop before leaving the operating position. 9. Check the hydro control linkage adjustment.
Adjusting the Neutral Control Linkages 4. Check the orientation of the tabs on the ends of the speed control crank. These tabs should be pointing straight down at the 6 o’clock position approximately (Fig. 48). Warning 5. Adjust the threaded yoke at the bottom of the speed control linkage until the tabs are at the 6 o’clock position (Fig. 48). 1 Engine must be running so control linkage adjustments can be performed. Contact with moving parts or hot surfaces may cause personal injury.
Adjusting the Hydro Control Linkages 7. Squeeze one drive lever until an increased resistance is felt. This is where neutral should be. Note: Make sure you have not reached the end of the neutral lock slot. If you have, shorten the control lever linkage. Refer to Adjusting the Control Rod on page 39. Warning 8. If the wheel turns while holding the drive lever in neutral, the neutral control linkages need to be adjusted (Fig. 49). If wheel stops then go to step 12.
Warning 1 Electrical system will not perform proper safety shut off with Operator Presence Control (OPC) levers held in place. • Make sure Operator Presence Control (OPC) levers are working when adjustment is completed. • Never operate this unit with Operator Presence Control (OPC) levers held in place. 3 2 7. Loosen the front nut on left hydro control linkage as shown in figure 50. m–5394 8. Turn the left rear adjusting nut counter–clockwise until wheel rotates forward (Fig. 50). Figure 50 1.
2. Move the respective drive lever upward until it reaches the neutral position and engage neutral locks. Note: The OPC levers must be held down whenever the speed control lever is out of the neutral position or the engine will kill. 3. If the tire rotates in either direction, the length of the control rod will need to be adjusted. 4. Adjust the right side linkage by turning the quick track knob counterclockwise until the tire begins to rotate forward (Fig. 52). Adjusting the Control Rods 5.
2 3 4 1 1 m–5398 Figure 54 1. Quick track knob Figure 55 Adjusting the Spring Anchor Links 1. Spring anchor 2. Standard setting For medium or heavy duty drive conditions, such as operating with a sulky on steep slopes, a higher spring force may be required on the hydro pump control arms to prevent the drive system from stalling. Checking the Belts 3. Medium setting 4. Heavy duty setting Service Interval/Specification 1. Disengage the PTO, turn the ignition key to off, and remove the key.
1 3 3 4 2 1 4 5 2 m–4731 m–4731 Figure 56 1. Idler pulley 2. 1/2 in. (13 mm) deflection here Figure 58 3. Assist arm 4. Front stop 1. Locknut 2. Turnbuckle 3. Rear idler pulley 8. Engage the blade control (PTO) lever. 4. Front position for idler pulley 5. Belt guide 13. Check the belt guide under the engine frame for proper adjustment (Fig. 58). 9. Check the clearance between the bell crank and the transmission output shaft (Fig. 57).
Replacing the Grass Deflector Important The belt must be tight enough to not slip during heavy loads while cutting grass. Over tensioning the belt will reduce the bearing life of the belt and the spindle. Warning 1. Disengage the PTO, turn the ignition key to off, and remove the key. An uncovered discharge opening could allow the lawn mower to throw objects in the operator’s or bystander’s direction and result in serious injury. Also, contact with the blade could occur. 2.
Important The grass deflector must be spring-loaded in the down position. Lift the deflector up to check that it snaps to the fully down position. Wiring Diagram BLADE SWITCH BROWN 12.
CASE DRAIN HIGH PRESSURE CHARGE PUMP INLET Filter High Pressure Reverse Front of Machine 44 High Pressure Reverse High Pressure Forward Hydraulic Tank Hydraulic Diagram High Pressure Reverse
Cleaning and Storage B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). 1. Disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. Remove the key. C. Stop the engine, allow it to cool and drain the fuel tank; refer to Draining Fuel Tank, page 33. D. Restart the engine and run it until it stops. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.
Troubleshooting PROBLEM Engine g will not start, starts hard, or f il to keep fails k running. i g Engine loses power. Engine g overheats. Machine does not drive. POSSIBLE CAUSES CORRECTIVE ACTION 1. Fuel tank is empty. 1. Fill fuel tank with gasoline. 2. PTO is on (Pulled up). 2. Turn PTO off (Push in). 3. Speed control lever is in gear. 3. Move speed control lever to neutral. 4. Choke is not ON. 4. Move choke lever to ON. 5. Air cleaner is dirty. 5.
PROBLEM Machine moves slowly in neutral. Machine tracks left or right. g Abnormal vibration. Uneven cutting g height. g Blades do not rotate. POSSIBLE CAUSES CORRECTIVE ACTION 1. Neutral is mis-adjusted. 1. Adjust hydro linkages. 2. Neutral control spring is broken or missing. 2. Replace neutral control spring. 1. Tire pressure is not correct. 1. Adjust tire pressure. 2. Tracking knob not adjusted correctly. 2. Adjust tracking knob. 1. Cutting blade(s) is/are bent or unbalanced. 1.
The Toro Total Coverage Guarantee LCE A Limited Warranty Conditions and Products Covered Owner Responsibilities The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the listed Toro Products if defective in materials or workmanship. The following time periods apply from the date of purchase: You must maintain your Toro Product by following the maintenance procedures described in the operator’s manual.
