Form No. 3350–738 Mid–Size Mower ProLine Pistol Grip Hydro 15 HP with 36 inch Side Discharge Mower Model No. 30433—Serial No. 250000001 and Up Operator’s Manual Register your product at www.Toro.
Warning Checking the Tire Pressure . . . . . . . . . . . . . . . . . Checking the Hydraulic Fluid and Engine Oil . . Setting Up the Hydro Linkage . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting and Stopping the Engine . . . . . . . . . . . . Operating Neutral Locks . . . . . . . . . . . . . . . . . .
Changing the Side-to-Side Leveling . . . . . . . . . . Matching Height of Cut . . . . . . . . . . . . . . . . . . . . Replacing the Mower Belt . . . . . . . . . . . . . . . . . . Replacing the PTO Drive Belt . . . . . . . . . . . . . . . Replacing the Caster Wheel Fork Bushings . . . . Caster Wheel and Bearings Service . . . . . . . . . . . Replacing the Grass Deflector . . . . . . . . . . . . . . . Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Diagram . . . . . . . . . . . .
• Never operate with the discharge deflector raised, removed or altered, unless using a grass catcher. • The owner/user can prevent and is responsible for accidents or injuries occurring to himself or herself, other people or property. • Do not change the engine governor setting or overspeed the engine. Preparation • Evaluate the terrain to determine what accessories and attachments are needed to properly and safely perform the job. Only use accessories and attachments approved by the manufacturer.
• Use care when checking blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only replace blades. Never straighten or weld them. • Use only Toro-approved attachments. Warranty may be voided if used with unapproved attachments. • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running. Slope Operation Slopes and ramps are a major factor related to loss-of-control and accidents, which can result in severe injury or death.
• Never tamper with safety devices. Check safety systems for proper operation before each use. • Use only genuine replacement parts to ensure that original standards are maintained. • Check brake operation frequently. Adjust and service as required. • Hydraulic fluid escaping under pressure can penetrate the skin and cause injury. Use cardboard or paper to find hydraulic leaks. Never use your hands.
Slope Chart Fold along appropriate line Example: Compare slope with folded edge. Align this edge with a vertical surface (Tree, Building, Fence post, pole, etc.
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.
98-4387 1. Warning—wear hearing protection.
106-0635 106-5515 1. Keep bystanders a safe distance from the machine. 2. Do not allow bystanders to be hit by thrown objects. 3. Do not operate the mower with the deflector up or removed. 4. Stop the engine and pick up debris before operating. 5. Cutting of hand or foot, mower. 6. Engine—stop 7. Engine—run 8. Hour meter 1. Choke 2. Fast 9. To drive forward, move the controls as illustrated. 10. To place the machine in neutral, move the controls as illustrated. 11.
Gasoline and Oil Recommended Gasoline Warning Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. Gasoline is harmful or fatal if swallowed. Long–term exposure to vapors can cause serious injury and illness. Important Never use methanol, gasoline containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged. Do not mix oil with gasoline.
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. Step 1 2 3 4 5 6 7 8 9 Description Qty.
1 Step Step 2 Parts needed for this step: Parts needed for this step: • 1 Handle assembly • 1 Fuel tank with studs installed • 2 Flange bolts, 3/8 x 1 inch • 2 Bolts, 5/16 x 7/8 inch • 2 Flange bolts, 3/8 x 1–1/4 inch • 2 Lock washers, 5/16 inch • 4 Flange nuts, 3/8 inch • 2 Flat washers, 5/16 inch • 2 Springs Installing the Handle Assembly • 1 Hose clamp 1. Align handle with upper mounting holes in rear frame (Fig. 2). Installing the Fuel Tank 2.
Note: Tighten left side of the gas tank until it is completely tight and then unscrew the locknut one full turn. This will allow the spring to work. Step 6 7 8 3 Parts needed for this step: • 2 E–clips 3 3 4 2 5 1 Installing the Control Rods 1. For a starting point, make sure the rod fittings are threaded approximately 2–1/2 inches (63 mm) onto the control rods (Fig. 5). m–6640 Figure 4 1. 2. 3. 4. Bolt, 5/8 x 7/8 inch Lock washer, 5/16 inch Washer, 5/16 inch Spring 5. 6. 7. 8. 2.
Step 4 Step 5 Parts needed for this step: Parts needed for this step: • 1 Cotter pin • 2 Hairpin cotter pins • 1 Washer Installing the Hairpin Cotter Pins and Washers Installing the Speed Control Rod Unused height–of–cut spacers may be stored on posts and retained by a hairpin cotter. 1. Install the swivel into the speed control crank and secure it with a washer and cotter pin (Fig. 6). 1.
Step Checking the Neutral Stud 7 Refer to Adjusting the Neutral Stud on page 39. Checking the Control Rods Refer to Adjusting the Control Rods on page 40. Checking the Tracking No parts needed for this step. Refer to Adjusting Tracking on page 41. Checking the Hydraulic Fluid and Engine Oil Operation Check the hydraulic fluid level before the engine is first started. Note: Determine the left and right sides of the machine from the normal operating position.
Operator Presence Control (OPC) levers – OPC levers are used in conjunction with deck engagement switch (PTO) to release blade brake and engage clutch to drive mower blades. Release OPC levers to disengage mower blades. 8 3 9 5 6 2 Blade control switch (PTO) – Pull switch used in conjunction with OPC levers to release blade brake and engage clutch to drive mower blades. Speed control lever – This machine has a variable speed control with a neutral position.
2. Place thumbs on the upper part of the neutral locks and rotate them forward until in the forward slot (Fig. 11). Important Do not pull recoil rope to its limit or let go of the starter handle when rope is pulled out because rope may break or recoil assembly may be damaged. 2 Stopping 7 1. Squeeze the drive levers to the Neutral position and set the neutral locks. 1 2. Let engine idle for 30 to 60 seconds before turning the ignition key Off. 6 8 5 3. Turn the ignition key to Off (Fig. 10).
Disengaging the Mower Blades (PTO) 2 1 1. Release Operator Presence Control (OPC) levers to disengage blades (Fig. 13). The Safety Interlock System 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. m–6614 Figure 12 1. Parking brake lever (released position) 2.
5. With the engine running, move the speed control lever forward. Release the OPC levers. The engine should kill. Bringing Machine to Neutral Position 6. If all the above conditions are not met have an Authorized Service Dealer repair the safety system immediately. Always set the neutral lock when you stop the machine. Set the parking brake if it is left unattended. 1. Squeeze the drive levers back toward the grips to neutral position. Driving Forward or Backward 2. Set the neutral locks.
Side Discharge or Mulch Grass 3. Open the by-pass valves, by turning them counter clockwise 1 to 2 turns, to push the machine. This allows hydraulic fluid to by-pass the pump and the wheels to turn (Fig. 15). This mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Important Rotate by-pass valve a maximum of 2 turns so the valve does not come out of the body causing fluid to run out.
Important All four hairpin cotter pins must be in the same hole location and with the correct number of spacers for a level cut. 3 4 3 4 1 1 4 2 Figure 17 5 1 1. Center Gage Wheels and Spacer 2. Nut m-4856 2 4 2 m–5230 Figure 16 1. Carrier Frame 2. Hairpin Cotter 3. Front height–of–cut post 4. Spacers 5. Back height–of–cut post Adjusting the Center Gage Wheels The gage wheels need to be adjusted in the proper hole location for each height-of-cut position.
Adjusting the Handle Height 4. Remove the lower flange bolts (3/8 x 1 inch) and flange nuts securing handle to rear frame (Fig. 20). The handle position can be adjusted to match the operator ’s height preference. 5. Pivot handle to desired operating position and install lower flange bolts (3/8 x 1 inch) and flange nuts into mounting holes. Tighten all flange bolts. Note: 7 1. Remove the hairpin cotter pin and clevis pin from the drive lever and neutral lock (Fig. 18).
Maintenance Note: Determine the left and right sides of the machine from the normal operating position.
Servicing the Air Cleaner Service Interval/Specification Note: Excess oil in the foam element restricts the air flow through the element and may reach the paper filter and clog it. Foam Element: Clean and re-oil after every 25 operating hours. Important worn. Replace the foam element if it is torn or Paper Element: Replace after every 100 operating hours. 2 Inspect the foam and paper elements, and replace them if they are damaged or excessively dirty.
3. Install the air cleaner cover and secure with cover nuts (Fig. 21). 1 Servicing the Engine Oil 2 3 Service Interval/Specification Change oil: • After the first 8 operating hours. • After every 100 operating hours. Note: Change oil more frequently when operating conditions are extremely dusty or sandy. Figure 24 1. Oil dipstick 2. Metal end Oil Type: Detergent oil (API service SF, SG or SH) 3. Filler tube Crankcase Capacity: w/filter, 64 oz. (1.
7. Slowly pour approximately 80% of the specified oil into the filler cap (Fig. 24). Refer to Servicing the Engine Oil, page 28. Servicing the Spark Plug 8. Check the oil level; refer to Checking the Oil Level, page 28. Check the spark plug(s) after every 200 operating hours. Make sure the air gap between the center and side electrodes is correct before installing the spark plug.
2. Check the gap between the center and side electrodes (Fig. 28). Bend the side electrode (Fig. 28) if the gap is not correct. 2 1 3 1 0.040 in. (1.02 mm) m–5391 m–5390 Figure 29 1. Fuse, 10 amp Figure 28 1. Center electrode insulator 2. Side electrode 3. Air gap (not to scale) Greasing and Lubrication Service Interval/Specification Grease with No. 2 general purpose lithium base or molybdenum base grease. Installing the Spark Plug(s) 1. Install the spark plug(s) and metal washer.
m–7905 Figure 32 Figure 30 Cleaning the Cooling System Lubricating the Caster Bearings Service Interval/Specification 1. Lubricate the front wheel bearings and front spindles until grease begins to ooze out of the bearings (Fig. 31). Before each use, check and clean engine cooling system. Remove any build–up of grass, dirt or other debris from the cylinder and cylinder head cooling fins, air intake screen on flywheel end, and carburetor–governor levers and linkage.
Servicing the Fuel Tank Danger In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. 1 2 • Drain gasoline from the fuel tank when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills. • Never smoke when draining gasoline, and stay away from an open flame or where a spark may ignite the gasoline fumes. m–6367 Figure 33 1. Rear Tire 2.
Servicing the Fuel Filter Service Interval/Specification Servicing the Hydraulic System Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. Checking the Hydraulic Fluid Replacing the Fuel Filter Check the hydraulic fluid level before engine is first started. Never install a dirty filter if it is removed from the fuel line. Check the hydraulic fluid level after first 8 operating hours. Note: Note how the fuel filter is installed.
3. Place drain pan under filter, remove the old filter and wipe the filter adapter gasket surface clean (Fig. 38). 1 2 4 3 m–5615 Figure 37 1. Cap 2. Baffle 1 m–6575 3. Cold fluid level—full 4. Hot fluid level—full Figure 38 1. Hydraulic filter Warning 4. Apply a thin coat hydro fluid to the rubber gasket on the replacement filter (Fig. 39). Hydraulic fluid escaping under pressure can penetrate skin and cause injury. 5. Install replacement hydraulic filter onto the filter adapter.
10. Recheck level while fluid is warm. Add fluid to raise level to top of the baffle, if required. Do not overfill. Warning Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Bleeding the Hydraulic System The traction system is self bleeding, however, it may be necessary to bleed the system if fluid is changed or after work is performed on the system.
2 12 4 4 1 6 3 5 3 m–6477 1 2 Figure 40 1. Speed control lever 2. Full speed position 3. Neutral position 3 9 1 Side View 4 4. Medium speed position 5. Control panel 2 5 3. Check the orientation of the tabs on the ends of the speed control crank. These tabs should approximately be pointing straight down at the 6 o’clock position (Fig. 41). m–6607 Figure 41 1. Speed control rod 2. Nut 3. Speed control crank 4.
Adjusting the Hydro Control Linkages 9. To adjust the switch location, loosen the two neutral bracket screws holding the switch plate to the frame (Fig. 42). 10. Adjust the switch up or down to obtain an 1/8 to 1/4 inch (3 to 6 mm) space (Fig. 42). Warning 11. Tighten the two neutral bracket screws holding the switch plate (Fig. 42). Engine must be running so control linkage adjustments can be performed. Contact with moving parts or hot surfaces may cause personal injury.
6. Turn the left rear adjusting nut counter–clockwise until wheel rotates forward (Fig. 45). 7. Turn the rear adjusting nut clockwise 1/4 of a turn at a time. Then move the speed control lever forward and back to neutral. Repeat this until left wheel stops rotating forward (Fig. 45). 1 3 Note: Make sure flat part of linkage is 90 degrees or perpendicular to pin part of swivel (Fig. 44). 2 8. Tighten the front nut on left hydro control linkage shown in figure 45. 1 2 m–6604 Figure 45 Back View 4 1.
5. Turn the knob clockwise 1/4 of a turn at a time. Then move the speed control forward and back to neutral. Repeat this until right wheel stops rotating forward (Fig. 47). 1. With the machine on jack stands, place the speed control lever in the neutral position (Fig. 40). 6. The spring that keeps tension on the knob should normally not need adjustment. However, if adjustment is needed, adjust the length of the spring to 1 inch (26 mm) between the washers (Fig. 47).
10. Release the drive lever to the forward drive position and squeeze back into the neutral position (Fig. 50). Check to see if the wheel stops. If not, repeat steps 8 and 9. 6 1 4 2 11. After adjustments are made, tighten the nut against the yoke. 12. Repeat this procedure for the opposite side. 3 Adjusting the Control Rod Checking the Control Rod 5 7 1. With rear of machine still on jack stands and engine running at full throttle, move the speed control lever to the medium speed position.
Tracking Adjustment 5. If there is a reasonable amount of force, no adjustment is required. 1. Remove the machine from any jack stands. Adjusting the Brake 2. Check the rear tire pressure. Refer to Checking the Tire Pressure Service on page 31. The brake handle is on the left side of machine (Fig. 52). If the parking brake does not hold securely, an adjustment is required. 3. Start and run the unit. Observe the tracking on a level, smooth, hard surface such as concrete or asphalt. 1.
Adjusting the Electric Clutch Before Inspecting or Servicing the Blades The clutch is adjustable to ensure proper engagement and proper braking. Check adjustment after every 100 hours of operation. Park the machine on a level surface, disengage the blade control (PTO) and set the parking brake. Turn the ignition key to off. Remove the key and disconnect the spark plug wire(s) from the spark plug(s). 1. To adjust clutch, tighten or loosen lock nuts on flange studs (Fig. 53). 2.
Front 3 1 A 2 A 5 m–1078 6 Figure 55 4 m–6368 Figure 57 1. Sail Area of Blade 2. Blade 3. Blade spindle MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE 4. Blade Bolt 5. Blade stiffener 6. Flat washer Sharpening the Blades m–1087 Figure 56 1. Use a file to sharpen the cutting edge at both ends of the blade (Fig. 58). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. 2. Rotate the opposite ends of the blades forward. 3.
Important The sail part of the blade must be pointing upward, toward the inside of the mower to ensure proper cutting (Fig. 57). 4. At the carrier frame cross tube, measure location A height (Fig. 60). This measurement must be 1–5/16 inch (33 mm), plus or minus a 1/4 inch (6 mm). 2. Install the lock washer and blade bolt (Fig. 57). Torque the blade bolt to 85–110 ft-lb (115–140 NSm). 5. If the height at location A is not correct, adjustment is needed. 6.
6. If the height at location A and B are not the same, change tire pressure slightly to make them the same. 2 3 5 3 24 in. (61cm) 3 5 A A B 4 2 4 B 1 m–6370 Figure 62 4 1 4 1. Caster Wheel 2. Carrier Frame 3. 1/4–3/8 inch (6 mm–10 mm) pitch over 24 inch (61 cm) length m–5237 Figure 61 1. Back view of machine 2. Top of engine deck 3. Tires 4. Same height at locations A and B 4. Height at locations A and B 5. Caster spacers Checking Carrier Frame Side–to–Side 1.
5 3 2 5 2 MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE B A m–1087 Figure 65 1 4 1 4 Changing the Deck Front-to-Rear Pitch m–6371 Figure 63 1. Caster Wheel 2. Carrier Frame 3. Front height–of–cut pins 4. Same height at locations A and B 5. Caster spacers Changing the front–to–rear pitch is done by adjusting the front height–of–cut posts. Changing the Deck Front–to–Rear Pitch by Adjusting Front Height–of–Cut Posts Checking the Deck Front-to-Rear Pitch 1.
Checking the Deck Side-to-Side Leveling 2. Set the height-of-cut to the 4 inch (101.6 mm) position following the height-of-cut decal. 3. With the machine on level surface, position one blade front-to-rear (Fig. 69). Measure at A and from level surface to the cutting edge of the blade tips (Fig. 70). 1. Check the tire pressure on both deck and traction unit. 2. Position the blades side-to-side (Fig. 67). Measure at A and B locations (Fig. 67) from a level surface to the cutting edge of blade tips (Fig.
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Remove the knobs and rubber washers holding the belt cover to the cutting unit and remove the belt cover. 5. Remove the PTO drive belt. Refer to Replacing the PTO Drive Belt on page 48. 3. Remove the knobs and rubber washers holding the carrier frame cover and remove the carrier frame cover. 6.
Replacing the Caster Wheel Fork Bushings 6. Inspect the caster wheel fork for wear and replace if necessary (Fig. 73). 7. Slide the caster wheel fork through the bushings in the mounting tube. Replace the spacer(s) onto the fork and secure with the retaining ring (Fig 73). The caster wheel forks are mounted in bushings pressed into the top and bottom of the carrier frame mounting tubes. To check the bushings, move the caster forks back and forth and side-to-side.
3. Install bolt and nut. Place the J hook end of spring around grass deflector (Fig. 76). 2 Important The grass deflector must be able to lower down into position. Lift the deflector up to test that it lowers into the full down position. 1 2 4 8 1 3 6 3 5 4 3 m–5210 1 Figure 75 1. Locknut 2. Wheel Bolt 3. Bushing 4. Spanner Bushing 5. Roller Bearing 8 5 7 5. To assemble, place one bushing into the wheel hub. Grease the roller bearing and spanner bushing and slide them into the wheel hub.
Wiring Diagram WIRE COLOR CODES W PTO Switch (Off) 1 2 PK W PINK BK BLACK PK BN BROWN R RED BU BLUE T TAN GN GREEN VIO VIOLET GY GREY W WHITE OR ORANGE Y YELLOW Neutral Switch (In Neutral) Y 7 5 8 4 PK BN Y F1 10A SPARK PLUG IGNITION MODULES Clutch Y 5 3 4 Y W MAG 2 1 + HR MTR AC REG AC K1 Interlock Relay KEY SWITCH – Operator Presence Switch (No Operator) PK PK D1 Park Brake Switch (On) HR MTR Y T MOD BK SPARK PLUG (OPEN = ON) (CLOSED = OFF) BK
Hydraulic Diagram Motor Right Side Pump Right Side B A Filter Expansion Tank Pump Left side B A Motor Left side Charge Pump Inlet Case Drain m–5225 52
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 the Fuel Tank, page 32. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.
PROBLEM Engine g loses power. p POSSIBLE CAUSES CORRECTIVE ACTION 1. Engine load is excessive. 1. Reduce ground speed. 2. Air cleaner is dirty. 2. Clean air cleaner element. 3. Oil level in crankcase is low. 3. Add oil to crankcase. 4. Cooling fins and air passages under engine blower housing are plugged. 4. Remove obstruction from cooling fins and air passages. 5. Spark plug is pitted, fouled, or gap is incorrect. 5. Install new, correctly gapped spark plug. 6.
PROBLEM Abnormal vibration. Uneven cutting g height. g Blades do not rotate. POSSIBLE CAUSES CORRECTIVE ACTION 1. Cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. Blade mounting bolt is loose. 2. Tighten blade mounting bolt. 3. Engine mounting bolts are loose. 3. Tighten engine mounting bolts. 4. Loose engine pulley, idler pulley, or blade pulley. 4. Tighten the appropriate pulley. 5. Engine pulley is damaged. 5. Contact Authorized Service Dealer. 6.
The Toro Total Coverage Guarantee A Limited Warranty Landscape Contractor Equipment (LCE) 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 product if defective in materials or workmanship.
