FORM NO. 3319–942GB Z–320 OUT FRONT Z Model No. 74191 – 890001 & Up Operator’s Manual IMPORTANT: Read this manual carefully. It contains information about your safety and the safety of others. Also become familiar with the controls and their proper use before you operate the product.
Introduction Thank you for purchasing a Toro product. All of us at Toro want you to be completely satisfied with your new product, so feel free to contact your local Authorized Service Dealer for help with service, genuine replacement parts, or other information you may require. Whenever you contact your Authorized Service Dealer or the factory, always know the model and serial numbers of your product.
Contents Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gasoline and Oil . . . . . . . . . . . . . . . . . . . . . . . . Recommended Gasoline . . . . . . . . . . . . . . Stabilizer/Conditioner . . . . . . . . . . . . . . . . Filling the Fuel Tank . . . . . . . . . . . . . . . . . Check Engine Oil Level . . . . . . . . . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loose Parts . . . . . . . . . . . . . . . . . . . . . . . . .
Contents 2
Safety Safe Operation Practices for Ride-on (riding) Rotary Lawnmower Machines Preparation 1. While mowing, always wear substantial footwear and long trousers. Do not operate the equipment when barefoot or wearing open sandals. Training 2. Thoroughly inspect the area where the equipment is to be used and remove all objects which may be thrown by the machine. 3. WARNING – Petrol is highly flammable. 1. Read the instructions carefully.
Safety Operation 7. Watch out for traffic when crossing or near roadways. Do not operate the engine in a confined space where dangerous carbon monoxide fumes can collect. 8. Stop the blades rotating before crossing surfaces other than grass. 2. Mow only in daylight or in good artificial light. 9. 3. Before attempting to start the engine, disengage all blade attachment clutches and shift into neutral.
Safety 15. Stop the engine and disengage drive to attachment • before refuelling; • before removing the grass catcher; • before making height adjustment unless adjustment can be made from the operator’s position. 16. Reduce the throttle setting during engine run-out and, if the engine is provided with a shut-off valve, turn the fuel off at the conclusion of mowing. Maintenance and storage 1. Keep all nuts, bolts and screws tight to be sure the equipment is in safe working condition. 2.
Safety Slope Chart Read all safety instructions on pages 3–10.
Safety 7
Safety Symbols Glossary Safety alert triangle– symbol within triangle indicates a hazard Fire, open light & smoking prohibited Safety alert symbol Fire or open flame Explosion Read operator’s manual Consult technical manual for proper service procedures Keep children away from battery Shut off engine & remove key before preforming maintenance or repair work Do not dispose of lead battery in garbage Caustic liquids, chemical burns to fingers or hand Stay a safe distance from the machine Caution,
Safety Symbols Glossary Do not open or remove safety shields while engine is running Stored energy hazard, kickback or upward motion Thrown or flying objects, whole body exposure Dismemberment, rider backing Thrown or flying objects, whole body exposure Keep guards and safety sheilds in place Do not carry passengers Dismemberment, Out Front Z in forward motion Severing of toes & fingers, rotary mower blade Machine rollover, Out Front Z Hand & arm engagement, belt drive Machine rollover, do not u
Safety Symbols Glossary Fast Slow Brake system Parking brake Decreasing/Increasing Battery On/Run Oil Lubrication Point Off/stop Power take off (PTO) Engine start Engage Engine run Disengage Engine stop Elapsed Operating Hours Choke 10 Alarm
Gasoline and Oil Recommended Gasoline Stabilizer/Conditioner Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. Add the correct amount of gas stabilizer/conditioner to the gas. Using a stabilizer/conditioner in the machine: 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.
Assembly Loose Parts Note: Use the chart below to verify all parts have been shipped. DESCRIPTION QTY.
Assembly Install Castor Wheel Check Tire Pressure 1. Remove nut, washers, spacer and axle shaft from fork (Fig. 1). Check the air pressure in all tires: refer to Tire Pressure in Maintenance section. 2. Jack up rear of unit and install rear wheel into castor fork (Fig. 1). 3. Place wheel with spacer installed and washers between fork and slide bolt through bearings (Fig. 1). 4. Secure bolt with 1/2” locknut (Fig. 1). 5. Torque nut to 75 ft–lb (55 N⋅m). 6. Grease castor wheel bearings (Fig.
Assembly Activate the Battery 1 Bulk electrolyte with 1.260 specific gravity must be purchased from a local battery supply outlet. 1. Remove the battery from the machine. IMPORTANT: Be careful not to damage the long vent tube when removing the battery box. 2 3 m–1262 POTENTIAL HAZARD • Battery electrolyte contains sulfuric acid which is a deadly poison and it causes severe burns. WHAT CAN HAPPEN • If you carelessly drink electrolyte you could die or if it gets onto your skin you will be burned.
Assembly 3. Leave the covers off and connect a 3 to 4 amp battery charger to the battery posts (Fig. 3). Charge the battery at a rate of 4 amperes or less for 4 hours (12 volts). Install Battery 1. Fill battery with electrolyte and charge, refer to BATTERY, page 49. 2. Position battery in tray with terminal posts toward the engine (Fig. 4). 3. Slide the red terminal boot onto the red battery cable. 4.
Assembly Install Recycler Baffles Recycler Operation 1. Remove spring below footrest, remove hairpin cotter and clevis pin from latch and slide chute out of blower opening (Fig. 5). When operating the mower with Recycler baffles installed you must disengage the blower drive belt. 2. Tilt mower into the vertical position, refer to; Tilting the Mower, page 26. 1. Stop the engine, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2.
Assembly Install Bagger and Discharge Baffles Bagger Operation When operating the mower with bagger baffles installed you must engage the blower drive belt. When changing between bagging and recycling baffles must be removed and replaced 1. 2. Tilt mower into the vertical position, refer to; Tilting the Mower, page 26. Remove locknuts, carriage bolts and Recycler baffles from the mower (Fig. 6). Note: 3. 4. Save all hardware for use when installing Recycler baffles.
Operation Think Safety First Controls Please carefully read all the safety instructions on pages 3–8. Knowing this information could help you, your family, pets or bystanders avoid injury. Become familiar with all the controls (Fig. 1) before you start the engine and operate the machine. 1 2 POTENTIAL HAZARD • Loud sounds can cause ear damage and loss of hearing. 3 • Ear damage or hearing loss may occur.
Operation Parking Brake Always set the parking brake when you stop the machine or leave it unattended. Setting the Parking Brake 1. Move the motion control levers to neutral (Fig. 1). 2. Pull up on the parking brake lever to set the parking brake (Fig. 2). The parking brake lever should stay firmly in the “SET” position. Releasing the Parking Brake 1. Push in on the button and lower parking brake lever to “OFF” (Fig. 2). 1 2 3 m–3287 Figure 2 1. Parking brake–SET 2. Button 3.
Operation Starting and Stopping Engine 2 1 Starting 1. Sit down on the seat and set the parking brake; refer to Setting the Parking Brake, page 19. 2. Move the motion control levers to neutral. 3. Move the PTO (power take off) to “OFF” (Fig. 3). 4. Move the throttle control midway between “SLOW” and “FAST” positions before starting a cold engine. 5. Move the choke control to “ON” position before starting a cold engine. Note: 6.
Operation Stopping 1. Move the throttle lever to “SLOW” (Fig. 5). 2. Set the parking brake. 3. Turn the ignition key to “OFF” (Fig. 6). Note: 4. 5. If the engine has been working hard or is hot, let it idle for a minute before turning the ignition key “OFF.” This helps cool the engine before it is stopped. In an emergency, the engine may be stopped by turning the ignition key to “OFF.
Operation The Safety Interlock System 4. “SET” the parking brake, move power take off (PTO) to “OFF” and hold the motion control levers in neutral. Now start the engine. While the engine is running, move the motion control levers forward or reverse; the engine should stop. 5. Tilt the hopper up, “SET” the parking brake, move power take off (PTO) to “OFF” and hold the motion control levers in neutral. Now start the engine.
Operation Driving Forward or Backward 5 The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the throttle control in the “FAST” position for best attachment performance. Always operate in the full throttle position when operating attachments. 4 5 2 2 1 1 3 3 5 4 5 Forward m–3288 1. Release the parking brake; refer to Setting the Parking Brake, page 19. 2. To go forward, slowly push the motion control levers forward (Fig. 9). Note: Figure 9 1.
Operation Backward 1. Release the parking brake; refer to Setting the Parking Brake, page 19. 2. To go backward, slowly pull the motion control levers rearward (Fig. 9). To go straight, move both motion control levers the same distance (Fig. 9). Positioning the Seat The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. 1. To adjust, remove the locknut and washer, and tip seat forward (Fig. 10).
Operation Adjusting Height-of-Cut Adjusting Rollers The height-of-cut is adjusted from 1” to 4-1/2” (25 to 115 mm) in 1/2” (13 mm) increments by relocating four clevis pins in different hole locations. The rollers are preset for heights-of-cut below 2” (51 mm) If the height-of-cut is set to the 2” (51 mm) or above the rollers must be adjusted to the lower hole location. 1. 2. 3. To adjust, remove hairpin cotter and clevis pin from mower hanger bracket (Fig. 18).
Operation Tilting the Mower 4. Lift on side of mower to release weight on latch pin and pull out on latch pin to release (Fig. 15). Lower rear of mower onto roller. Repeat on the other side. The mower can be tilted up for ease of service or to shorten unit length for transport and storage. 4 To Raise Mower 1 1. Set the parking brake and check that PTO cover is down against footrest (Fig. 17). 2. Remove 5/16–18 x 7/8” (11 mm) shoulder bolt and 5/16” flange nut holding PTO cover down (Fig. 17). 3.
Operation Dumping the Hopper To Lower Mower 1. Pull out latch pins and rotate into notch to hold in the open position (Fig. 15). Standing in front of the mower, pull forward on front and lower mower (Fig. 16). 2. Rotate latch pins into released position and lift on side of mower until latch pin engages (Fig. 15). Repeat on the other side. 3. 4. The hopper is equipped with a “hopper full” sensor that checks for a full condition. When the alarm buzzer sounds the hopper needs to be emptied. 1.
Operation Pushing the Machine by Hand IMPORTANT: Always push the machine by hand. Never tow the machine because hydraulic damage may occur. To Push the Machine 1. Disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. 2. Rotate pump by-pass valves counterclockwise 2 turns to push. This allows hydraulic fluid to by-pass the pump enabling the wheels to turn (Fig. 19).
Maintenance Service Interval Chart Service Operation Each Use 8 Hours Hydraulic fluid–check level Initial X Oil—check level 25 Hours 50 Hours 100 Hours 200 Hours X X Oil—change* X Initial X Oil Filter–change (200 hours or every other oil change) Hydraulic filter–change Initial Safety System—check X Hopper – clean X X X X X X X X X Screens – clean (as required) Mower Housing – clean Storage Service X X X X Cutting Blades – check X X Chassis—grease* X X Drive Shaft—greas
Maintenance POTENTIAL HAZARD • If you leave the key in the ignition switch, someone could start the engine. WHAT CAN HAPPEN • Accidental starting of the engine could seriously injure you or other bystanders. HOW TO AVOID THE HAZARD • Remove the key from the ignition switch and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).
Maintenance 3. Carefully slide the foam element off the paper element (Fig. 20). 4. Unscrew the cover nut and remove the cover and paper element (Fig. 20). 1 Cleaning the Foam and Paper Elements 1. Foam Element 2 A. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. m–1213 Figure 22 B. Dry the element by squeezing it in a clean cloth (do not wring). 1. Paper element C. Put one or two ounces of oil on the element (Fig. 21).
Maintenance Engine Oil Checking Oil Level Change oil: • After the first 5 operating hours. • After every 100 operating hours. Note: 1. Park the machine on a level surface, disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Clean around the oil dipstick (Fig. 23) so dirt cannot fall into the filler hole and damage the engine. 3. Unscrew the oil dipstick and wipe the metal end clean (Fig. 23). 4.
Maintenance Changing/Draining Oil Change Oil Filter 1. Start the engine and let it run five minutes. This warms the oil so it drains better. Replace the oil filter every 200 hours or every other oil change. 2. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. Then disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key.
Maintenance Spark Plug Checking the Spark Plug 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. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary. 1. IMPORTANT: Never clean the spark plug(s).
Maintenance Greasing and Lubrication 2. Grease the fittings on drive shaft and universal joints (Fig. 29). The unit must be lubricated regularly. Refer to the Service Interval Chart on page 29. Grease Type: No. 2 general purpose lithium base or molybdenum base grease. How to Grease m-3203 1. Disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Clean the grease fittings with a rag. Make sure to scrape any paint off the front of the fitting(s).
Maintenance Lubricate Power Take Off (PTO) Gearbox Lubricate Mower Gearbox Check the oil level in the PTO gearbox every 50 operating hours. Change the oil every 500 hours or six months, whichever occurs first. 6. Remove plug on the side of the gearbox and check the level of lubrication in the gearbox. If level is low, add SAE EP-80\90 wt. gear oil until level is up to side plug in gearbox. (Fig. 32). 7. Repeat for remaining gearboxes. Oil Type: SAE EP-80\90 wt. gear oil Capacity: 16 oz. (377 ml) 1.
Maintenance Replacing the Castor Wheel Fork Bushings 4. Insert a pin punch into the mounting tube and carefully drive out the bushings (Fig. 35). Clean the inside of the mounting tube. The castor wheel forks are mounted in bushings pressed into the top and bottom of the carrier frame mounting tubes. To check the bushings, move the castor forks back and forth and side-to-side. If a castor fork is loose, the bushings are worn and must be replaced. 5. Grease the inside and outside of the new bushings.
Maintenance Servicing the Castor Wheels and Bearings The castor wheels rotate on a roller bearing supported by a spanner bushing. If the bearing is kept well lubricated, wear will be minimal. Failure to keep the bearing well lubricated will cause rapid wear. A wobbly castor wheel usually indicates a worn bearing. 1. Remove the locknut and wheel bolt holding the castor wheel to the castor fork (Fig. 36). 2.
Maintenance Replacing Push Arm Bushings The push arms have pressed in bushings on the end mounted to the traction unit. To check the bushings, move the push arms side-to-side and examine for wear. If a push arm is loose, the bushings are worn and must be replaced. 1. Remove the mower: refer to Removing the Mower in the Installation section. 2. Inspect the pivot pin assembly for wear and replace if necessary. 3. Remove the retaining ring and flat washer securing the push arm to the mower (Fig. 37). 4.
Maintenance Cleaning the Cooling Systems Before each use, check and clean cooling screen. Remove any build–up of grass, dirt or other debris from the oil cooler screen and engine air intake. Every 100 hours clean oil cooler, engine cylinder and cylinder head cooling fins. Also clean around carburetor, governor levers and linkage. This will help insure adequate cooling to hydraulic pumps, motors and engine and will reduce the possibility of overheating and mechanical damage. 1.
Maintenance Fuel Filter Fuel Tank Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. Draining The Fuel Tank Replacing the Fuel Filter POTENTIAL HAZARD • In certain conditions gasoline is extremely flammable and highly explosive. Never install a dirty filter if it is removed from the fuel line. 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key.
Maintenance 5. Install the fuel line onto the fuel shut-off valve. Slide the hose clamp close to the fuel shut-off valve to secure the fuel line (Fig. 42). 4 3. Remove cap from filler neck and look inside to check fluid level. Fluid level should be above the bottom of the screen (Fig. 43). 4. If level is low, add fluid to raise level to above the bottom of the screen (Fig. 43). 5. Install cap on filler neck. 1 3 1 2 2 m–3293 Figure 42 1. Fuel shut-off valve 2. Hose clamp 3 3. Fuel line 4.
Maintenance 3. Place drain pan under filter, remove the old filter and wipe the filter adapter gasket surface clean (Fig. 44). 1 3 2 m–1256 Figure 45 1 m–3291 1. Hydraulic filter 2. Gasket 3. Adapter Figure 44 1. Hydraulic filter Bleeding Hydraulic System 4. Apply a thin coat hydro fluid to the rubber gasket on the replacement filter (Fig. 45). 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.
Maintenance 4. IMPORTANT: Motion control lever must contact forward stop before pump contacts internal stop or pump damage may occur. POTENTIAL HAZARD • Hydraulic fluid escaping under pressure can penetrate skin and cause injury. WHAT CAN HAPPEN • Fluid accidentally injected into the skin must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result. Rotate control rod 1 turn, to lengthen rod, and tighten jam nuts (Fig. 46). 5.
Maintenance Adjust Mowing Speed Reference Position The mowing speed reference position is a spring loaded stop that can be felt, as extra spring force when, pushing motion controls forward. The motion control levers return to this pre-set position when forward pressure is reduced. Below the pre-set speed the motion control levers remain in their placed location. The reference position is factory set for cutting grass at approximately 5 mph. 4 3 Adjusting Reference Speed 1.
Maintenance Replacing Power Take Off (PTO) Belts 4. Install new PTO belts over clutch and route around gearbox pulleys and above spring loaded idler (Fig. 49). Check power take off (PTO) belts for wear after every 50 hours of operation. 5. Hold spring loaded idler against belts and pull spring down to install on lower bolt mount (Fig. 48). 6. Install clutch stop (Fig. 48). Tighten mounting bolts securely. 7. Plug clutch wire into wire harness. 1. 2. 3.
Maintenance Replacing the Traction Belt Replacing the Blower Belt Check traction drive belt for wear after every 50 hours of operation. Squealing when the belt is rotating, blower slipping causing frequent clogging of chute and blower, frayed belt edges, burn marks and cracks are all signs of a worn blower belt. Replace the blower belt if any of these conditions are evident. 1. Remove PTO belts; refer to Replacing Power Take Off (PTO) Belts. 2.
Maintenance Fuse Service Interval/Specification The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check component/circuit for malfunction or short. Fuse: Main F1–30 amp, blade-type Alternator F2–25 amp, blade-type Safety Interlock and Clutch F3–15 amp, blade-type 1. Remove dash panel screws to gain access to fuse holder (Fig. 52). 2. To replace fuses pull out on the fuse to remove it (Fig. 52). 4 3 2 1 m–3223 Figure 52 1. Main-30 amp 2.
Maintenance Battery Check the electrolyte level in the battery every 8 hours. Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of four parts water and one part baking soda. Apply a light coating of grease to the battery terminals to prevent corrosion. IMPORTANT: Do not overfill the battery because electrolyte (sulfuric acid) can cause severe corrosion and damage to the chassis. 4.
Maintenance Cleaning Hopper Screens For best clipping collection, maximum air flow through the hopper is required. To provide maximum air flow, the hopper screens must be kept clean. 1. To clean the hopper screens dump the hopper to remove grass clippings. 2. With the door open, remove the knobs at the upper front of the hopper and slide the screens out the rear of the hopper (Fig. 54). 3. 4.
Maintenance Cutting Blades To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand. POTENTIAL HAZARD • A blade that is worn or damaged could break apart and pieces could be thrown at bystanders or at you as you use the mower. Inspecting the Blades 1. Inspect the cutting edges (Fig 56). If the edges are not sharp or have nicks, remove and sharpen the blades. Refer to Sharpening the Blades on page 53. 2.
Maintenance Checking for Bent Blades 1. 2. Rotate the blades until the ends face forward and backward (Fig. 57). Measure from a level surface to the cutting edge of the blades (Fig. 58). Note this dimension. Rotate the opposite ends of the blades forward. 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” (3 mm).
Maintenance Front 3 2 Sharpening the Blades 1. 1 Use a file to sharpen the cutting edge at both ends of the blade (Fig. 61). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. m–3372 1 Figure 59 1. Cutting edge 2. m–1854 1. Install the blade onto the blade retainer and secure with retainer bolt, spacer and washer (Fig. 54).
Maintenance Correcting Cutting Unit Mismatch Setting the Front-to-Rear Pitch 1. Check the tire pressure. If one cutter blade cuts lower than the other, correct as follows: 2. Position the blades front-to-rear (Fig. 63). Measure at “C” and “D” locations (Fig. 63) from a level surface to the cutting edge of the blades (Fig. 64). 3. The mower should be 1/8”–5/8” (3–16 mm) lower in front “C” than in the rear “D”. 1.
Maintenance Setting the Side-to-Side Leveling 1. Check the tire pressure. 2. Position the blades side-to-side (Fig.65 ). Measure at “A” and “B” locations (Fig. 65) from a level surface to the cutting edge of blades (Fig.66). 3. The difference between measurements “A” and “B” should be no more than 1/4” (6 mm). 4. To change the side-to-side leveling, remove the retaining ring and move the thrust washers on one castor wheel fork only.
connector bargger Optional BAG SENSOR PINK GREEN BUZZER connector Optional PINK 2 1 D4 GND BLACK K4 TAN CLOSED WHEN TRACTION DRIVE IS IN NEUTRAL SW2 (NEUTRAL) CLOSED WHEN TRACTION DRIVE IS IN NEUTRAL D3 GREY WHITE RED/WHT (INTERLOCK RELAY) YELLOW SW3 (NEUTRAL) RED/WHT DIODE MODULE D2 PINK PINK BLACK PINK SW4 (PTO) K1 2 BROWN BLACK (NEUTRAL RELAY) PINK TAN (START RELAY) YELLOW BROWN JUMPER S6 BROWN CLOSED WHEN PARK BRAKE IS SET K3 RED/WHT SW1 CLOSED WHEN (SEAT)OPER
A C B I FRONT PUMP 94-4705 94-4705 C A PUMP REAR B I 94-4714 RIGHT MOTOR A B 94-4712 94-4710 98-4384 FILTER 98-4384 HYDRAULIC TANK MOTOR LEFT B A 94-4713 94-4709 Maintenance Hydraulic Diagram COOLER 57
Maintenance Cleaning and Storage 1. 2. Disengage the power take off (PTO), set the parking brake and turn the ignition key to “OFF” to stop the engine. Remove the key. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine’s cylinder head fins and blower housing. 3. Clean any dirt and chaff from the mower, chute, blower and hopper. 4.
Troubleshooting PROBLEM Starter does not crank Engine g will not start,, starts hard,, or f il to fails t keep k running. i Engine g loses power. p POSSIBLE CAUSES CORRECTIVE ACTION 1. Power take off (PTO) is ENGAGED. 1. Move power take off (PTO) to DISENGAGED. 2. Parking brake is not on. 2. Set parking brake. 3. Motion control levers are not in neutral. 3. Move motion control levers into neutral. 4. Battery is dead. 4. Charge the battery. 5.
Troubleshooting PROBLEM Engine g overheats. Abnormal vibration. Machine does not drive. 60 POSSIBLE CAUSES CORRECTIVE ACTION 1. Engine load is excessive. 1. Reduce ground speed. 2. Oil level in crankcase is low. 2. Add oil to crankcase. 3. Cooling fins and air passages under engine blower housing are plugged. 3. Remove obstruction from cooling fins and air passages. 1. Engine mounting bolts are loose. 1. Tighten engine mounting bolts. 2.