The engine exhaust from this product contains chemicals known to the State defects or other reproductive harm.
MANUAL CAREFULLY. that follow: 65 WARNING: contains chemicals birth defects, and other of the Honda H4518H publication is based on the of printing. changes at any time without written permission. and it must Pay special...
Safety Messages Your safety and the safety important safety messages these messages carefully. A safety message alerts you to potential Each safety message is preceded words: DANGER, WARNING, These mean: You WILL be KILLED or SERIOUSLY follow follow You CAN be HURT if you don’t Each message tells you what the hazard is, what can happen, do to avoid...
SAFETY INFORMATION SAFETY LABEL LOCATIONS The labels shown here contain carefully. These labels are considered comes off or becomes hard to read, contact I AWARNING 1 important safety information. permanent parts of your tractor. your dealer GASOLINE IS FLAMMABLE STOP ENGINE, AVOID HEAT, SPARKS, AND OPEN FLAME WHEN REFUELING.
LAWN TRACTOR SAFETY For your safety and the safety precautions: Operator Responsibility Keep lawn tractor tractor in poor, or questionable Be sure all safety place, these items Know how to stop the engine Understand the use of all controls. Allowing anyone, tion result...
Blade Hazard The blades are sharp, and they cause serious injury. Keep your hands and feet is running. Stop the engine, disengage key before inspection Disconnect the spark starting. Wear heavy when cleaning out the mower blades. Thrown Object Hazard Objects hit by the blades and may...
The engine and exhaust main hot for a while after can cause burn injuries Avoid touching a hot engine Allow the engine to cool lawn tractor indoors. Carbon Monoxide Poisoning Exhaust contains poisonous gas. Breathing exhaust death. If you run the engine ed, the air you breathe gas.
2. COMPONENT IDENTIFICATION POWER TAKE-OFF PARKING BRAKE LEVER CUlTER PARKING INDICATOR LAMP TEMP INDICATOR LAMP DECK HEIGHT ADJUSTING LEVER - CUTTER DECK DRIVE ADJUSTING KNOB (PTO) LEVER STEERING WHEEL ’ DECK FRAME SERIAL NUMBER HEADLIGHT SWITCH FUEL INDICATOR LAMP HEADLIGHT RUFFLER TRANSMISSION OIL FILLER CAP...
Engine compartment OIL DRAIN PLUG * Record the frame and engine serial numbers when ordering inquiries (see page 84). Frame serial number: Engine serial number: serial numbers for your reference. parts, and when making RESERVE TANK RADIATOR DRAIN PLUG Refer to the technical or warranty...
3. CONTROLS Engine Switch Always remove lawn tractor is unattended from starting the engine. This lawn tractor is equipped which controls all the electrical hand side of the control Key positions: “START” “ON“ “OFF“ ENGINE - SWITCH 1 NOTICE 1 D o not leave when the engine is not running...
Cutter Deck Height Adjusting This lever is used to raise and lower height, squeeze the handle Raise or lower the lever dicator. At that point, the handle lock returns Cutting height: 1.0, 1.5, To avoid damage to the cutter the lawn tractor to and from the mowing ground clearance.
Shift Lever Use the shift lever to change and/or to shift the transmission To drive lawn tractor move shift lever reverse, slowly move NOTE: The shift lever lever returns to NEUTRAL lawn tractor to a complete Be sure that the shift Mowing in the transport quality.
Power Take-Off (PTO) Lever This lever engages and disengages blades. Lever positions: (Engaged). OFF (Disengaged) PTO LEVER NOTE: An interlock switch lever is in the OFF position. Brake Pedal The brake pedal and the pedal is fully depressed, return to NEUTRAL. If the released, the lawn...
Parking Brake Lever and Warning Buzzer This lever is used to set the brake To apply the parking brake, on the control panel will To release parking button, lower the lever A warning buzzer will out of the neutral position switch is in the “ON”...
Transmission Release Lever This lever is used when hand. Operating the transmission hill, could result in a loss of control damage. 1 NOTICE perating the transmission ning can damage the transmission. To operate the transmission 1. Stop the engine and apply 2.
Headlight Switch The headlight switch izzl NoT’CE Poor visibility Reduce speed when turns the headlights ON and OFF. increases risk operating the tractor in low light conditions. of striking hidden objects. HEADLIGHT SWITCH...
Follow the procedures each use: 1. Park the lawn tractor 2. Place the shift lever 3. Disconnect the spark tal engine start-up. If the engine the pre-operation checks, OPENING/CLOSING THE HOOD To open, pull up at the grip area until the hood stops at the fully open position. If the hood is opened while the hydraulic lift arms are raised, the hood can strike the arms.
ENGINE Running the engine damage. 1, Place the lawn tractor 2. Open engine hood, Remove the dipstick 3. Reinsert it all the way 4. If the level is low, dipstick. Do not overfill. Use 4-stroke motor oil that meets or exceeds classification SF or SG.
FUEL Fuel Level/Refueling Removethefueltankcapandcheckthefuellevel.Refillthetankifthelevelislow. If the low fuel indicator gal) or less remaining Fuel tank capacity: 9.0 P (2.38 US gal, 1.98 Imp gal) Gasoline is extremely flammable, treme care when handling Refuel in a well ventilated and sparks away, and do not smoke Gasoline vapors or spilled gasoline...
Fuel Recommendation Use unleaded gasoline This engine is certified Unleaded gasoline produces tends exhaust system Never use stale or contaminated dirt or water in the fuel tank. Occasionally you may hear light “spark noise) while operating If spark knock or pinging change brands of gasoline.
Oxygenated Fuels Some conventional gasolines compound. These gasolines meet clean air standards, oxygenated fuels to help reduce If you use an oxygenated octane rating requirement. Before using an oxygenated provinces require this information The following are the EPA approved ETHANOL - (ethyl or grain alcohol) You may use gasoline Gasoline “Gasohol”.
AIR CLEANER Check that the air cleaner ty air cleaner will restrict mance. A damaged rapid engine wear. 1. Open hood and remove cover and air cleaner 2. Inspect cleaner necessary. If the cedure described 3. Reinstall air cleaner wing nuts securely.
COOLANT Coolant Level Check the coolant level operating temperature. If the coolant level is near the MIN mark, add coolant mark. If there is no coolant in the reserve for leaks and repaired if necessary. and reserve tank. The coolant is hot and under pressure and severe scalding could result.
BATTERY ELECTROLYTE Open the hood, and check The electrolyte level must be kept between IftheelectrolytelevelisneartheLOWERmark,removethebatteryfillercapsand carefully add distilled water to each cell until the liquid line (see page 61). LOWER LIMIT Batteries an explosion, causing away and provide adequate CHEMICAL HAZARD: tact with eyes or skin, even through Wear...
TRANSMISSION OIL INSPECTION Check the transmission and the transmission at ambient NOTE: HST fluid changes stick is calibrated 68OF (2OOC). Within ween the upper and lower If the fluid temperature transmission fluid. To measure transmission fluid. If the fluid temperature mark on the dip stick.
CUTTER DECK Prior to using the mower, not built up in the deck. CUTTER DECK DRIVE Inspection 1. Lower the deck as far as it will go with and raise the hood. 2. Inspect the belts for damage ed or excessively CUTTER DECK DRIVE BELT Cutter deck drive belt tension...
ANTI-SCALP ROLLER anti-scalp rollers vent blades from “scalping” high spots. designed to “float”‘, portant to set the anti-scalp correctly. setting type of terrain being and the cut height. FLAT TERRAIN For flat terrain, use the lower in the anti-scalp roller shaft. the hole with the hole on the deck that corresponds...
TIRES 1 NOTICE) verinflation Inflate the tires to manufacturer’s Check the tire pressure Pressure: Front ..98 kPa (1.0 kg/cm2, 14.2 psi) Rear ..78 kPa (0.8 kg/cm*, AIR PRESSURE GAUGE SEAT ADJUSTMENT Adjust seat position front...
BLADE Before each use, inspect Remove the ignition cidental starting. Wear heavy gloves 1. Set the parking brake, position. 2. Raise the deck height 3. Inspect the blades inch deck a. The right blade left blade can been b. Rotate the blades 42 and 46 inch a.
4. If either of the blades remove the cutter deck removal instructions blades that are worn must be replaced. the tractor to your proper tools, blade removal and installation 38 inch type 3iEiil 42 and 46 inch type Broken nieces cause serious injury.
SAFETY SWITCH Before performing these on the seat or set the parking 1. PTO switch inspection shift With the lever in the N (Neutral) (Engaged) position. Check that the starter turned to the START Return the PTO lever to the OFF (Disengaged) 2.
5. OPERATION STARTING THE ENGINE Exhaust contains cause loss of consciousness enclosed area. Be sure to provide NOTE: Before starting release lever under the seat 1. Sit on the seat and adjust parking brake lever is set, the transmission the OFF (disengaged) 2.
3. Turn the engine switch to START. (5 second maximum) and release key when the engine starts. Ru nning the starter motor for more than 5 seconds can damage the motor. If the engine fails to start, release the engine switch key, and wait at least 10 seconds before...
To help prevent engine equipped with a JEMP comes on and the warning check the coolant level (see p. To prevent before cleaning the radiator Continuing can lead to severe engine damage caused by overheating, INDICATOR LAMP. buzzer sounds, (p. 25) and clean the radiator accidental start-up,...
Seat Safety Switch Operation The seat safety switch weight is off the seat 1. While parked on a level surface, Rise off the seat-the 2. Return the PTO lever to OFF (Disengaged) Release the parking brake and place the shift lever in the slow mowing While driving slowly, 3.
MOWING Before operating this SAFETY INSTRUCTIONS Rotating blades and thrown Always stop the engine before the grass bags. Unseen hazards may cause tor. Look for and avoid terrain. Operating the lawn tractor could cause it to tip or roll over. Certain maneuvers ing surfaces;...
To avoid leaving uncut grass, engage sion from neutral to the desired For best quality FAST position and select Mowing at low or medium mance and cut quality. For best results, select Rapid speed changes Do not move the shift as this will affect cut quality.
STARTING THE LAWN TRACTOR Be sure the obstacles before mowing. 1. Set the cutter deck NOTE: Be sure that selected cutting height INDICAT SET BUTTON 2. Move the throttle NOTE: For best cut quality, tle lever in the FAST Use the shift lever to select mowing...
3. Move the PTO lever to the ON (Engaged) piciE--1 To avoid premature always engage and disengage the PTO lever with a quick, smooth motion. 4. Move the shift lever When operating ground speed that will give you safe ground ning at full throttle.
CUTTING PATTERNS These cutting patterns surface. In a small area First make 2 or 3 turns continue cutting in the reverse In a large area The first round of cuts or 3 turns in a clockwise turn to the right and continue have finished...
Mowing unsquare areas If your mowing area several blocks so you can mow Overlapping on straightaways. Be sure that each mowing overlap width is between the mower’s front tires. Overlapping in curves When cutting in curves overlap the previous of the mower’s rear tires.
OPERATION ON HILLS This lawn tractor is intended slopes exceeding NOTE: If you feel that suggest that available at many hardware Mowing on Hills: Reduce speed and exercise Always drive up and down or drive across the face over. Empty grass bags when cause...
STOPPING THE ENGINE In an emergency: Turn the engine depress the foot Set the parking In normal use; Move the PTO lever to OFF (Disengaged). Move the shift Set the parking Turn the engine Remove the engine switch OFF and brake.
HIGH ALTITUDE OPERATION At high altitude, the standard Performance will decrease, fuel mixture also foul High altitude performance carburetor. If you always (6,000 feet), have your dealer Even with carburetor 3.5%for each 300 meter (1,OOOfeet) increase in altitude. horsepower will be greater NOTICE When the carburetor the air-fuel mixture will be too lean for low altitude use.
The engine and remain hot for a while after stopping. system can cause serious Avoid touching the engine the engine has stopped. lawn tractor. To wing the lawn push another vehicle Transport the lawn tractor avoid gasoline spillage, Gasoline is extremely plode, causing injury or death,...
TOWING Trailer Safety Avoid sudden starts the trailer or attachment accident. Never allow anyone Failure to use the proper type of trailer hitch could cause the tractor overturn resulting The weight of a trail& especially when operating To avoid loss of control, or rough surface.
Maximum Towing Weight: On flat terrain: ............227 kg (500 On grades (1 O”...
7. MAINTENANCE THE IMPORTANCE OF MAINTENANCE Good maintenance is essential It will also help reduce Improper maintenance, cause a malfunction in which you can be seriously hurt or killed. Always follow the inspection ules in this owner’s manual. To help you properly maintenance schedule, procedures...
MAINTENANCE SAFETY Some of the most important warn you ofeveryconceivable Only you can decide whether Failure to properly follow maintenance you to be seriously hurt or killed. Always follow the procedures Safety precautions Make sure the engine will eliminate several Carbon monoxide Be sure there is adequate Burns from hot parts.
EMISSION CONTROL SYSTEM Source of Emissions The combustion process hydrocarbons. Control because, undercertain subjected to sunlight. is toxic. Honda utilizes lean carburetor sions of carbon monoxide, The U.S. and California EPA and California regulations instructions describing systems. The following instructions emissions from your Honda Tampering...
Replacement Parts The emission control certified to conform with EPA and California mend the use of genuine These original-design dards as the original parts, so you can be confident of replacement parts that are not of the original the effectiveness of your emission A manufacturer of an aftermarket...
Perform at every indicated month or operating hour interval, Transmission oil NOTE: Emission related Replace the paper element (1) Service more freqently (2) These items should be serviced by an authorized owner has the proper tools and is mechanically (3) For Professional commercial nance intervals.
ENGINE OIL CHANGE Drain while draining. Used motor oil may cause skin cancer tact with the skin for prolonged Although this is unlikely, still advisable to thoroughly as possible after handling 1. Open the engine Remove the oil filler container. Be careful NOTE: To remove...
OIL FILTER CHANGE Drain the engine oil, and retighten Remove the oil filter, and drain the oil into a suitable used oil filter. 3. Clean the filter mounting clean engine oil. I%%%] Use only a genuine Honda oil filter or a filter of equivalent specified for your model.
AIR CLEANER SERVICE A dirty air cleaner will restrict lawn tractor in very specified in the MAINTENANCE Operating the engine 1. Open the engine hood. 2. Remove the wing elements and separate tears and replace NOTE: Be sure to remove so that can inspect 3.
SPARK PLUG SERVICE Recommended spark plug: BPR5ES11 Touching burns. Let the engine Spark plugs of the wrong For good performance, deposits. Open the engine Clean any dirt from Use a spark plug Visually inspect the spark parent wear, or if the insulators plugs with a wire...
6. Install the spark plugs carefully, 7. After each spark plug is seated, tighten the washer. Loose spark plugs can get hot enough to damage Overtightening may damage NOTE: If installing to compress the washers. turn after the spark plugs seat to compress by hand, to avoid with a spark plug wrench the threads.
BATTERY SERVICE Battery Refilling If the lawn tractor is operated tion and battery plate If rapid loss of electrolyte weak, causing slow authorized Honda lawn Open the engine hood Fill the battery with battery. Batteries cause serious injury charging. CHEMICAL HAZARD: tact with eyes or skin, even through Wear...
Battery Cleaning If the battery terminals and clean the terminals. 1. Remove the battery 2. Disconnect the battery at the battery positive POSITIVE I+) TERMINAL Remove battery terminals with a wire Clean the battery ing care not to get the solution tery thoroughly.
WHEEL REMOVAL Do not attempt to remove level ground. Do not attempt to remove ment and knowledge Block the wheels securely. Front Wheel 1. Remove the cotter 2. Jack up the front washer, and front 3. Install the front wheel 4.
CUlTER DECK Cutter Deck Removal 1. Lower the mower deck and remove the tensioner arm. 2. At the front of the tractor, and work the belt off pulley BELT TENSION 3. Remove the belt from 4. Remove the six gold-colored 5.
7. Firmly hold the cutter and set button, and allow When the mower cause the deck hei ht adjusting button is pressed. If old the lever firmlv and carefullv position. Turn the steering wheel deck from the right Installation is the reverse After installing the belt and adjusting the belt tension, start the engine and shift the PTO lever into ON and OFF to be sure that it operates properly.
Cutter Deck Drive Belt Replacement Never attempt running. Remove spark plug caps to prevent Wear heavy gloves working with the cutter If the tractor has been running, very hot. Allow them to cool before Lower the cutter deck. Remove belt tension Remove the belt stopper A.
5. Open the hood. 6. Open the upper radiator 7. Remove the belt through sliding it sideways 8. Installation sequence for belt tension adjustment. NOTE: Be careful not to damage After installing the belt and adjusting the belt tension, start the engine and shift the PTO lever into ON and OFF to be sure that it operates properly.
Blade Belt Replacement 38 inch deck. 1. Lower the cutter deck, remove 2. Remove the nuts 3. Pull the belt off pulley tensioner pulley. Wear heavy blade belt, and don’t 4. Remove belt from BELT/ STOPPER the cutter deck. See page 64. and then remove the belt stopper...
42 and 46 inch cutter 1. Lower the cutter 2. Remove the nuts 3. Pull the belt off pulley tensioner pulley. Wear heavy blade belt, and don’t 4. Remove the belt from 42 inch type 46 inch type deck deck, Remove the cutter and then...
Blade Bolt Tightness Blade Replacement To avoid disconnect the spark plug cap to prevent gloves to protect your hands from the cutter H Blade bolt tightness - 1. Remove the deck Turn the deck upside Clean dirt and grass from Hold blade blade...
Blade Installation piGiEF1 us e a genuine - 1. Clean dirt and grass the cutter deck. Install the blade 38 inch cutter deck Right and left blades NOTE: high-lift blade on the right sides, as shown. 38 inch type Be sure the blade is properly ing the blade bolt.
SPARK ARRESTER MAINTENANCE You can purchase an optional, from your authorized required in some areas; check local laws and regulations Honda product. The muffler hot for a while after the engine hot. Allow it to cool before spark arrester must efficiency.
FUSE REPLACEMENT The fuse box is located When frequent fuse failure overload in the electrical dealer for repair. To replace fuse, pull the old fuse out of the clips with your finger. fuse into the clips. Never use fuse Serious damage to the electrical Turn the engine...
FUEL FILTER CHANGE Remove the fuel filter visually inspect it through Replace the filter if it is contaminated NOTE: Drain the gastank See page 75. HEADLIGHT BULB REPLACEMENT Open the engine hood, turn up the bulb connector. Push twist bulb connector and bulb.
PREPARATION FOR STORAGE The engine becomes after stopping. Allow Contact burns or fires. Let the engine The following steps it will be stored for longer 1. Pump all gasoline Loosen carburetor gasoline container. After Gasoline plode, causing serious gasoline. Keep flames and sparks If gasoline is not drained...
2. Change the engine oil (see page 56). NOTE: If the lawn remove spark plugs oz.) of clean motor Place the PTO (Power Take-off) several rotations by hand, Reinstall the spark plugs. Be sure to wear clutch. If the lawn tractor Allow it to cool before...
4. If equipped with clean the bags before 5. Remove the cutter 6. Turn cutter deck with water, and dry thoroughly. 7. For longer service mower housing washing it down brush and scraper. Cleaning and rust prevention storage. 8. Reinstall the cutter 9.
9. TROUBLESHOOTING Engine fails to start; 1. No fuel. in gear. -Position 2. Shift lever 3. PTO lever engaged. not set. -Set 4. Parking brake 5. Seat switch is not depressed. 6. Spark plug faulty improperly gapped. loose -Check 7. Spark plug wire or disconnected.
Oil consumption 1. Incorrect oil viscosity--------, 2. Oil leaks 3. Worn piston ring, 4. Oil level high Excessive vibration; 1. Loose blade or engine- mounting hardware. 2. Blade damaged or out of balance. 3. Belt damaged 4. Each pulley damaged pulleys not aligned.
Blade does not rotate 1. Blade belt and drive worn or broken. 2. PTO lever malfunction- Scalping 1. Anti-scalp rollers not adjusted properly. 2. Cutting height 3. Turning speed fast 4. Uneven surface 5. Rough and uneven Mowing load is too 1.
Dry weight Tire size Air pressure Transmission Travel speed (2,950 rpm) Fuel tank capacity Battery NOTE: Specifications H4518H MZAT GX640 OHC Twin cylinder 635 cm3 (38.7 cu in) 76 x 70 mm (3.0 x 2.8 in) 22” BTDC C.D.I. Liquid cooled 2.7 P (2.9 US qt)
Almost all problems are solved in this way. If you are dissatisfied with the decision made by the dealership’s contact the Honda Power Equipment American Honda Motor Co., Inc. Power Equipment Customer Relations Office...
When you write or call, please provide the following information: • Model and serial numbers • Name of the dealer who sold the Honda power equipment to you • Name and address of the dealer who services your equipment •...
AIR CLEANER: Inspection Service ... BATTERY: Cleaning Electrolyte Level ... BRAKE: Parking: Inspection.. Lamp/Buzzer Pedal: Operation Wear Indicator..CARBURETOR MODIFICATION FOR HIGH ALTITUDE COOLANT ... COMPONENT IDENTIFICATION CONTENTS CONTROLS: Engine Switch ... Headlight Switch..CUTTER DECK..Cutter Deck Removal Cutter Deck Drive Belt Replacement Blade Bolt Replacement..