Form No. 3325-976 Rev A 170-DH Lawn Tractor Model No.
Important The engine in this product is not equipped with a spark arrester muffler. In some areas it is a violation of the law to use or operate this engine on any forest-covered, brush-covered, or grass-covered land. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Maintenance Schedule . . . . . . . . . Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tire Pressure . . . .
Training Write the product model and serial numbers in the space below: • Read the instructions carefully. Be familiar with the controls and the proper use of the equipment. Model No. • Never allow children or people unfamiliar with these instructions to use the lawnmower. Local regulations can restrict the age of the operator. Serial No. • Never mow while people, especially children, or pets are nearby.
• Stop the blades rotating before crossing surfaces other than grass. – If fuel is spilled, do not attempt to start the engine but move the machine away from the area of spillage and avoid creating any source of ignition until fuel vapors have dissipated. • When using any attachments, never direct discharge of material toward bystanders nor allow anyone near the machine while in operation. – Replace all fuel tanks and container caps securely.
• To reduce the fire hazard, keep the engine, silencer, battery compartment and fuel storage area free of grass, leaves, or excessive grease. Sound Pressure Level This unit has an equivalent continuous A-weighted sound pressure at the operator ear of: 79 dB(A), based on measurements of identical machines per procedures outlined in Directive 84/538/EEC and amendments. • Check the grass catcher frequently for wear or deterioration. • Replace worn or damaged parts for safety.
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. 104-3194 1. Crushing/dismemberment hazard—look back and down while backing up. 99-7824 1. Thrown object hazard—keep bystanders away. 2. Thrown object hazard from mower—keep the deflector in place. 3. Cutting/dismemberment hazard of hands or feet—stay away from rotating blades and moving parts. 2. Parking brake 3.
4-3240 1. Decrease height of cut 2. Increase height of cut 104-3243 1. To drive the mower, push the lever in. 2. To push the mower, pull the lever out. 104-2853 1. Increase the discharge opening when mowing long, wet grass. 104-3238 1. Starting procedure 2. Read the operator’s manual. 3. Check the engine oil level. 4. Raise the cutting unit. 5. Put the traction control pedal in neutral. 6. Set the parking brake. 7. If the engine is cold, move the throttle lever to Choke. 8.
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. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills. • Do not fill the fuel tank completely full. Add gasoline to the fuel tank until the level is 1/4 to 1/2 in. (6 to 13 mm) below the bottom of the filler neck. This empty space in the tank allows gasoline to expand.
Controls Add the correct amount of gas stabilizer/conditioner to the gas. Become familiar with all of the controls (Fig. 2) before you start the engine and operate the machine. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. 6 2 5 1 Filling the Fuel Tank 4 1. Shut the engine off and set the parking brake. Allow the engine to cool for two minutes. 7 3 2.
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. Raise the seat and loosen the adjustment knobs (Fig. 3). 2 3 2. Move the seat to the desired position and tighten the adjustment knobs. 1 Figure 4 1. Blade control (PTO) 2. Engaged 1 3. Disengaged Disengaging the Blade(s) 1. Depress the brake pedal to stop the machine. m–4841 2. Push the PTO in to Disengaged (Fig. 4). Figure 3 1.
Setting the Height of Cut Adjusting the Mower Gauge Wheels The height-of-cut lever (deck lift) is used to raise and lower the mower to the desired cutting height. The mower front gauge wheels are used to guide the mower over uneven ground. The mower wheels must always be in the bottom (lowest) hole in the wheel bracket (Fig. 8). The cutting height may be set in one of seven positions from approximately 25 to 102 mm (1 to 4 inches).
Stopping Note: To start a warm engine, move the throttle lever to the Fast position. 1. Move the throttle lever to Slow (Fig. 11). 6. Turn the ignition key clockwise and hold it in the Start position (Fig. 11). When the engine starts, release the key. Important To prevent backfiring and damage to the engine, do not move the throttle lever to Choke or Fast to stop the engine.
Setting the KeyChoice Switch to Operate in Reverse A red light on the front console (Fig. 13) turns on, indicating that the interlock is disabled. 1 An interlock feature on the tractor prevents the power take off (PTO) from operating when backing up. If you shift into reverse with the PTO engaged (i.e., with mower blades or other attachment running), the engine will stop. Do not mow in reverse unless absolutely necessary.
Pushing the Machine by Hand forward (Fig. 15). The farther you move the traction control pedal, the faster the machine will move forward. To slow down release the pressure on the traction control pedal. Important Always push the machine by hand. Never tow the machine because transaxle damage may occur. To go backward, release the parking brake; refer to Releasing the Parking Brake, page 12. Place your foot on the reverse speed pedal and slowly press on the pedal to move backward (Fig. 15).
Emptying the Grass Collector When the collector warning light (Fig. 5) comes on and the buzzer sounds, the grass collector is full and must be emptied. Important To prevent the discharge tunnel from getting clogged, the PTO must be disengaged when the warning light and buzzer are activated. 1. Disengage the PTO and move the throttle to Slow. 2. Pull out the telescoping dump lever and push it forward and down to empty the grass collector (Fig. 16). 1 Figure 17 1.
Mow at Correct Intervals When Stopping Normally, mow every four days. But remember, grass grows at different rates at different times. So to maintain the same cutting height, which is a good practice, mow more often in early spring. As the grass growth rate slows in mid summer, mow less frequently. If you cannot mow for an extended period, first mow at a high cutting height; then mow again two days later at a lower height setting.
Maintenance Service Interval Maintenance Procedure • Replace the oil filter. • Replace the paper air cleaner.2 • Check the spark plug. Every 100 hours • • • • • • Before storage 1Every 2More Perform all of the maintenance procedures listed above. Check the belts for wear or cracks. Drain the gasoline. Paint chipped surfaces. Charge the battery and disconnect the cables. Replace the fuel filter.
1 2 2 3 1 1868 Figure 18 1. Oil dipstick 2. Metal end 3. Filler tube 1869 Figure 19 1. Oil drain plug 2. Oil dipstick/fill tube Changing and Draining the Oil Changing the Oil Filter 1. Start the engine and let it run five minutes. This warms the oil so that it drains better. Replace the oil filter every 100 hours or yearly, whichever occurs first. 2. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely.
Brake Tire Pressure The brake is on the right side of the rear axle, inside the rear tire (Fig. 21). If the tractor requires more than one meter to stop at high speed in the highest gear, then the brake must be adjusted. Maintain the air pressure in the front tires at 120 kPa and in the rear tires at 100 kPa. Check the pressure at the valve stem after every 25 operating hours or yearly, whichever occurs first (Fig. 22). Check the tires when they are cold to get the most accurate pressure reading.
Where to Add Grease Figure 23 Lubrication List Item Name Quantity Interval (hours) Lubricant 1 Front wheel—grease fitting 2 25 Grease 2 Steering ball joints 4 50 Oil 3 Steering sector gear 1 50 Grease 4 Steering pinion gear 1 25 Grease 5 Steering shaft bearing 1 50 Oil 6 Steering shaft bearing 1 50 Oil 7 Motion lever—grease fitting 1 50 Grease 8 Shaft hub for lifting the mower deck 1 50 Oil 9 Motion link ball joints 4 50 Oil 10 Brake pedal hub 2 50 Oil
Fuse 5 5 Service Interval/Specification 1 The electrical system is protected by fuses. They are located beneath the hood, near the fuel tank (Fig. 24). No maintenance is required, however, if a fuse blows check the circuit wiring for a short. 3 4 2 To replace a fuse, pull up to remove it from the socket. Push down to insert it. • Main, battery—15 amp • Headlights—10 amp 4 • Interlock, electric clutch—10 amp 1874 Figure 25 • Full bag buzzer—5 amp 1 5 2 1. Bulb holder 2. Reflector 3. Tabs 3 4.
Battery 2 Service Interval/Specification Check the electrolyte level in the battery before each use. Always keep the battery clean and fully charged. Use a paper towel to clean the battery and battery box. 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. Voltage: 12 v, 190 Cold Cranking Amps 1 Removing the Battery 1.
Adding Water to the Battery 4. Install the battery in the chassis; refer to Installing the Battery, page 25. The best time to add distilled water to the battery is just before you operate the machine. This lets the water mix thoroughly with the electrolyte solution. Spark Plug 1. Clean the top of the battery with a paper towel. Service Interval/Specification 2. Remove the filler caps (Fig. 28). Install a new spark plug(s) after every 100 operating hours.
1. Park the machine so that the left front side is slightly lower than the right side to ensure that the fuel drains completely. Disengage the PTO, set the parking brake, stop the engine, and remove the ignition key. 2. Check the gap between the center and side electrodes (Fig. 30). Bend the side electrode (Fig. 30) if the gap is not correct. 2 3 2. Open the hood. 3. Squeeze the ends of the hose clamp together and slide it up the fuel line toward the fuel tank (Fig. 31). 1 .76 mm (0.03 in.) 4.
1 2 1 Figure 32 1. Fuel shut-off valve Figure 33 1. Knob 3. Open the hood. 4. Squeeze the ends of the hose clamps together and slide them away from the filter (Fig. 31). 2. Air cleaner cover 4. Carefully slide the foam element off the paper element (Fig. 34). 5. Remove the filter from the fuel lines. 6. Install a new filter and move the hose clamps close to the filter. 1 7. Close the hood.
Cleaning the Foam and Paper Elements Installing the Foam and Paper Elements 1. Foam Element Important To prevent engine damage, always operate the engine with the complete foam and paper air cleaner assembly installed. A. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. 1. Carefully slide the foam element onto the paper air cleaner element (Fig. 34). B. Dry the element by squeezing it in a clean cloth. 2.
Removing the Blade 1. Remove the mower; refer to Removing the Mower, page 30. 2 1 2. Carefully tip the mower over. 1855 Figure 40 1. Blade 3. Remove the bolt, washer, and blade (Fig. 38). A block of wood may be wedged between the blade and the mower to lock the blade when you are removing the bolt. 2. Balancer Installing the Blade(s) Note: The right blade has a left-hand threaded bolt. 1. Install the blade, washer, and blade bolt (Fig. 38). 4. Inspect all parts.
4. Loosen the two hex nuts on the idler pulley (Fig. 43). 3 5. Adjust the M10 nut until the belt flexes 5 mm with 3 kp of force (Fig. 43). 1 2 4 2 8 1 5 9 6 7 3 10 Figure 43 Figure 42 1. Idler pulley and idler arm assembly 2. V–belt 3. Engagement spring 4. Rear hairpin clips 5. Rear pins 6. 7. 8. 9. 10. Top View Front hairpin clips Front pin Engine pulley V-belt pulley Front suspension M12 nuts 1. Hex nuts 2. Mower belt 3. M10 nut 6. Tighten the two hex nuts on the idler pulley. 7.
Cleaning the Grass Collector and Tunnel 2 If the holes on the grass collector bag become clogged with dirt and grass or if the full-bag sensor is dirty, the collector must be cleaned. 1. Disengage the PTO, set the parking brake, stop the engine, and remove the ignition key. 1 2. Remove the grass collector; refer to Removing the Grass Collector, page 32. 3. Clean the collector bag with pressurized water. 4. Wipe the area around the full-bag sensor. 5.
engine and distribute the oil inside the cylinder. Install the spark plug(s); refer to Spark Plug, page 26. Do not install the wire on the spark plug(s). B. Run engine to distribute conditioned fuel through the fuel system (5 minutes). C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Draining the Fuel Tank, page 27. 11. Disconnect the negative battery cable. Clean the battery and battery terminals. Check the electrolyte level and charge it fully; refer to Battery, page 25.
Problem The engine g will not start, starts h d or ffails hard, il tto kkeep running. i The engine g loses power. There is abnormal vibration. Possible Causes Corrective Action 1. The operator is not seated. 1. Sit on the seat. 2. The fuel tank is empty. 2. Fill the fuel tank with gasoline. 3. The air cleaner is dirty. 3. Clean or replace the air cleaner element. 4. The spark plug wire is loose or disconnected. 4. Install the wire on the spark plug. 5.
Problem The blade(s) does not rotate. The cutting g height g is uneven. Possible Causes Corrective Action 1. The blade drive belt is worn, loose, or broken. 1. Install a new blade drive belt. 2. The blade drive belt is off of the pulley. 2. Install the blade drive belt and adjust it for the correct tension. 3. The grass collector is not in place. 3. Install the grass collector. 1. The tire pressure is incorrect. 1. Set the tire pressure. 2. The mower is not level. 2.
