Honda HT3810, Owner'S Manual

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Page 3: ... of severe personal injury or death if instructions are not followed CAUTION Indicates a possibility of personal injury or equipment damage if instructions are not followed NOTE Gives helpful information If a problem should arise or if you have any questions about the lawn tractor consult an authorized Honda dealer Honda lawn tractors are designed to give safe and dependable service if operated ac...

Page 4: ...3 JTR LS 10 4 PRE OPERATION CHECKS 15 5 OPERATION 25 l Starting the engine l Mowing l Stopping the engine l High altitude operation 6 TRANSPtiRTllilG SiORAGE 34 7 MAINTENANCE 39 8 WIRING DIAGRAM 54 9 TROUBLE SHOOTING 55 10 SPECIFICATIONS 58 11 WARRANTY SERVICE 59 ...

Page 5: ...SAFETY LABEL LOCATIONS Read all safety instructions before operating the lawn tractor ID0 NOT OPERATE MWER WITHOUT DISCHARGE ICLEAR LAWN OF DEBRIS AND OBJECTS ID0 NOT MOW NEAR PEOPLE OR PETS OBJECTS MAY GE THROWN FROM MOWER 3 ...

Page 6: ...TURNING OR OPERATING ON SLOPES I STOP ENGINE BEFORE REMOVING GRASS CATCHER OR CLEANING DISCHARGE CHUTE I KEEP ALL SHIELDS AND SAFETY DEVICES IN PLACE KEEP PEOPLE AND PETS AT A SAFE DISTANCE WHILE OPERATING I THIS LAWN TRACTOR IS NOT LEGAL FOR USE ON PUBLIC STREETS OR HIGHWAYS GASOLINE IS FLAMMABLE STOP ENGINE AVOID HEAT SPARKS AND OPEN FLAME WHEN REFUELING ...

Page 7: ... proper instructions l Do not allow passengers to ride on the tractor or any of its attachments l Children should not be permitted to operate this lawn tractor l To prevent serious injury never put your hands or feet under the cutter deck l Do not operate the lawn tractor while barefoot Wear sturdy shoes or boots and clothing that is not loose l Be alert Do not operate the lawn tractor when you ar...

Page 8: ... Reverse l Do not mow in Reverse unless it is absolutely necessary l Use extra care when pulling a trailer or when using optional attachments a Be sure that any accessories trailer hitch etc are securely mounted and that they do not interfere with the safe operation of the tractor b Reduce operating speeds when using attachments and limit loads to those you can safely control c Use care when backi...

Page 9: ...ll bags may cause the mower to tip over CLEANING AND STORAGE l Leaves grass clippings oil and other combustible materials can become a fire hazard Be sure to keep the engine compartment the upper cutter deck surfaces and the belt and pulley areas clean l Stop the engine before removing the grass bags or cleaning the discharge chute l Check the condition of the grass catcher bags frequently For you...

Page 10: ...TIFICATION SEAT POWER TAI SHIFT LEVER PARKING LEVER E OFF P T 0 LEVER rSTEERING WHEEL BRAKE MDA CUTTER DECK PARKING INDICATOR HEADLIGHT SWITCH INTAKE DECK HEIGHT ADJUSTING LEVER Wl 7 IGHT FUEL GAUGE w FUEL FILLER CAP 8 ...

Page 11: ...Engine compartment FUSE BOX 3i AIR CLEANER SPARK PLUG CUTTER DECK BELT ADJUSTING KNOB OIL GRAIN PLUG 9 ...

Page 12: ...ide of the control panel Key positions START to start the engine ON to run the engine after starting OFF to stop the engine F i START NOTE The starter motor will not work unless the shift lever is in NEUTRAL and the P T 0 lever is in the OFF Disengaged position 2 Throttle lever The throttle lever controls engine speed from SLOW idle to FAST max speed and START CHOKE is for starting a cold engine N...

Page 13: ...CAUTION To avoid damage to the cutter deck always raise it fully when driving the lawn tractor to and from the mowing area this provides maximum ground clearance To avoid damaging or disabling the handle locking mechanism never at tempt to screw the adjusting lever s set button in or out CUTTER DECK HEIGHT SET BUTTON 4 Power Take Off P T O lever SET BUTTON This lever engages and disengages the pow...

Page 14: ...eed to reverse or from reverse to a forward speed Shifting bet ween forward and reverse speeds while the tractor is moving can cause transmission damage When shifting from one forward speed range to another while moving do not force the shift lever and do not shift up or down more than one slot at a time Do not operate the shift lever on a slope NOTE The tractor will pull away from a stop in any s...

Page 15: ...o maintain a safe speed when visibility is poor HEADLIGHT 7 Brake pedal Depressing the pedal will first disengage the tractor drive clutch As you continue to depress the pedal the brake will be applied to stop the tractor When the pedal is released the clutch will engage automatically CAUTION Releasing the brake pedal too slowly or holding the pedal halfway out can cause the clutch to slip and may...

Page 16: ...off the engine switch before setting the parking brake A warning buzzer will sound if the parking brake is engaged while the transmission is in gear and the engine switch is ON Pull the lever up slightly and press the lever button lower the lever while holding the button in The parking indicator lamp should go off m Operating the lawn tractor with the parking brake set will result in severe damage...

Page 17: ...spark plug cap before performing the pre operation inspection CAUTION l Inspect with the Lawn Tractor on level ground l Pull the parking brake fully up set the shift lever in N Neutral and the P T O lever in the OFF position before inspecting 1 Check the air intake screen Remove grass and dirt from both right and left side SCREENS to prevent the engine from overheating COOLING AIR INTAKE 15 ...

Page 18: ...rew it in d Check the oil level shown on the dipstick If near or below the lower level mark fill to the upper level mark with the recommended oil Use Honda 4 stroke oil or an equivalent high detergent premium quality motor oil certified to meet or exceed U S automobile manufacturers re quirements for service classification SE or SF Motor oils classified SE or SF will show this designation on the c...

Page 19: ...id getting dirt dust or water in the fuel tank Use of a lower octane gasoline can cause persistent pinging or heavy spark knock a metallic rapping noise which if severe can lead to engine damage CAUTION If spark knock or pinging occurs at a steady engine speed under normal load change brands of gasoline If spark knock or pinging persists consult your authorized Honda dealer Failure to do so is con...

Page 20: ...ed by Honda There are two types of gasohol one containing ethanol and the other containing methanol Do not use gasohol that contains more than 10 ethanol Do not use gasoline containing methanol methyl or wood alcohol that does not also contain cosolvents and corrosion inhibitors for methanol Never use gasoline contain ing more than 5 methanol even if it has cosolvents and corrosion inhibitors NOTE...

Page 21: ...ing wear Inspect brake lining condition every time the lawn tractor is used Press firmly on the brake pedal with your hand and then check the position of the brake wear indicator If the indicator is near the wear limit point take the lawn tractor to an Authorized Honda Power Equipment Dealer for repair rami Under no circumstances should the lawn tractor be operated if the brake lining is at the se...

Page 22: ...e If replace the belts as described on page 48m50 CUTTER DECK DRIVE BELT BLADE BELT 3 Check belt tension at the tensioner arm The mark on the tensioner arm should align with the tension indicatbr If not turn the adjusting knob to align the mark with the indicator CAUTION If the lawn tractor has been running the muffler will be very hot Allow it to cool before proceeding TENSIONER ARM BELT TENSION ...

Page 23: ...d electrolyte Contact with skin or eyes may cause severe burns Wear protective clothing and a face shield If electrolyte gets on your skin flush with water If electrolyte gets in your eyes flush with water for at least 15 minutgs and call a physician immediately l Electrolyte is poisonous If swallowed drink large quantities of water or milk and follow with milk of magnesia or vegetable oil and cal...

Page 24: ...bly 3 Tighten the seat mounting bolts securely SEAT MOUNTING 9 Check the tire pressure CAUTION Improper inflation may lead to premature tire failure Never ex ceed the manufacturer s maximum tire pressure specification Check the tire pressure with an air pressure gauge Pressure Front 0 9 1 1 kg cm2 12 8 15 6 psi Rear 0 6 Q 8 kg cm2 8 5 l 1 4 psi 22 ...

Page 25: ...t your hands from the cutter blades 1 Move the P T O lever to the OFF disengaged position and raise the cutter deck height adjusting lever to the highest position 2 Inspect both blades for cracks bending or wear The right blade can be seen through the discharge opening on the right side of the cutter deck The left blade can be seen under the left side of the cutter deck Turn the blades 180 to insp...

Page 26: ...e and install the blades yourself see blade removal and installation instructions on pages 51 52 J e3 BENT FEZi CRACKED Severe personal injury can result if a piece of blade breaks off and is thrown from under the cutter deck l Never operate the lawn tractor with a worn or damaged blade l Never operate the lawn tractor with a blade that is cracked or notched at the base of its upturned rear edge C...

Page 27: ...of conciousness and lead to death Never run the engine in an enclosed area Be sure to provide adequate ventilation 1 Sit on the seat and check that the transmission is in neutral and the P T 0 lever is in the OFF Disengaged position 2 Move the throttle lever to the START CHOKE position START CHOKE 1 25 ...

Page 28: ...e the key and wait at least 10 seconds before operating the starter motor again 4 After the engine starts let the engine switch return to ON 5 After the engine warms up move the throttle lever to the SLOW position NOTE When the engine is warm or the air temperature is high move the throttle to SLOW as soon as the engine starts 26 ...

Page 29: ...op immediately 2 Return the P T 0 lever to OFF Disengaged and restart the engine Release the parking brake and place the shift lever in the 1st speed range While driving slowly rise off the seat the engine should stop immediately mm To prevent loss of control perform this check on level ground never on a slope 27 ...

Page 30: ...n you are sure the area is completely cleared re mow at the desired height l If the lawn tractor accidentally gets caught by some object hole or curb do not try to ride over the obstruction or turn the steering to free the mower the steering mechanism or cutter deck may be damaged NOTE For best results wait until the lawn is dry before mowing 1 Set the cutter deck height adjusting lever to the des...

Page 31: ...he engine is operating at full throttle THROTTLE LEVER FAST t NOTE You may operate the lawn tractor at intermediate throttle settings if desired but always maintain sufficient engine speed for good pulling power and efficient blade operation Use the shift lever to select the desired driving speed range 3 Move the P T O lever to the ON Engaged position OFF 29 ...

Page 32: ...lope the lawn tractor may roll backwards during clutch engagement and this could cause it to tip over resulting in severe personal injury l Abruptly applying either the brake pedal or the parking brake lever while the tractor is rolling backwards down a slope may cause the tractor to tip over A Set parking brake B Apply pressure to the brake pedal C Move the throttle lever to mid range D Shift the...

Page 33: ...ern is only recommended for a flat level lawn sur face See safe operating rules page 5 l To spread grass cuttings evenly mow the outside perimeter of the lawn in a clockwise direction and then mow the rest of the lawn counterclockwise I 1 31 ...

Page 34: ...T 0 lever to OFF Disengaged 2 Move the shift lever to the Neutral position 3 Set the parking brake 4 Turn the engine switch OFF mi m Always remove the key from the engine switch whenever the lawn tractor is unattended to prevent children or unauthorized persons from starting the engine 32 OFF I ...

Page 35: ... than 6 000 feet above sea level ask your authorized Honda lawn tractor dealer to perform these carburetor modifications Even with suitable carburetor jetting engine horsepower will decrease ap proximately 3 5 for each 1 000 foot increase in altitude The affect of altitude on horsepower will be greater than this if no carburetor modification is made CAUTION Operation of the riding mower at an alti...

Page 36: ...wn points shown below CAUTION To avoid damaging the tie rods be careful not to put the rope around or near them when securing the front end FRONT REAR TIE kODS PROPER TIE DOWN POINTS Iw m Spilled fuel may ignite To avoid fuel and oil spillage keep the trac tor level when transporting CAUTION Do not pull the lawn tractor behind another vehicle and do not use the lawn tractor to push another vehicle...

Page 37: ...el tank when the exhaust system is hot Disconnect the spark plug cap and turn the engine switch to the ON posi tion to activate the fuel pump Loosen the carburetor drain screw and drain the fuel into a suitable gasoline container After draining turn the engine switch OFF and tighten the drain screw securely m Gasoline is extremely flammable and is explosive under certain conditions Do not smoke or...

Page 38: ...PTO Power Take off lever in the ON position Turn the front clutch several rotations by hand then return the PTO lever to the OFF position Reinstall the spark plugs e CAUTION Be sure to wear heavy duty gloves when turning the front clutch If the lawn tractor has been running the engine will be very hot Allow it to cool before proceeding 3 Remove the battery and store in a cool dry place Recharge it...

Page 39: ...he deck height adjusting lever to snap upward when the release button is pressed Hold the lever firmly and carefully return it to the UPPER position after removing the deck LOCK PIN 5 Turn the cutter deck upside down Clean the underside of the deck with water and dry thoroughly 6 For longer service and greater efficiency keep the underside of the mower housing clean and free of accumulated grass c...

Page 40: ...charge the battery and install it in the tractor 2 Remove the spark plug and check that it is clean and properly gapped see p 43 Turn the engine a few revolutions by hand without the spark plug 3 Thread the spark plug in as far as possible by hand then tighten it l 8 to l 4 turn further with the plug wrench 4 Check the engine oil level see p 16 5 Fill the fuel tank and start the engine by followin...

Page 41: ...e data and feels he is mechanically qualified CAUTION Use only genuine Honda parts or their equivalent for maintenance or repair Replacement parts which are not of equivalent quality may damage the tractor Periodic inspection and adjustment of the Honda HT3810 is essential if high level performance is to be maintained Regular maintenance will also ensure a long service life The required service in...

Page 42: ...ently when used in dusty areas 2 These items should be serviced by an authorized Honda lawn tractor dealer unless the owner has pro per tools and is mechanically proficient See the Honda Shop Manual 31 For professional commercial use log hours of operation to determine proper ntenance intervals 40 ...

Page 43: ...FILLER CAP OIL DRAIN PLUG WRENCH OIL DRAIN PLUG UPPER LEVEL LOWER LEVEL CAUTION Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods Although this is unlikely unless you han dle used oil on a daily basis it is still advisable to thoroughly wash your hands i with soap and water as soon as possible after handling used oil NOTE Please dispose of used ...

Page 44: ... the air cleaner cover Remove the ele ments and separate them Care fully check both elements for holes or tears and replace if damaged 3 Foam element Clean in warm soapy water rinse and allow to dry thoroughly Or clean in high flash point solvent and allow to dry Dip the element in clean engine oil and squeeze out all the excess The engine will smoke during initial start up if too much oil is left...

Page 45: ... spark plug base 3 Use a spark plug wrench to remove the spark plug hl iY SPARK PLUG WRENCH w I SPAFiK PLUG CAP 4 Visually inspect the spark plug Discard it if the insulator is cracked or chipped Clean the spark plug with a wire brush if it is to be reused 5 Measure the plug gap with a feeler gauge The gap should be 0 6 0 7 mm 0 024 0 028 in Correct as I necessary by carefully bending the side ele...

Page 46: ...ed l 2 turn with a wrench to compress its washer If a used plug is being reinstalled it should only require 118 to l 4 turn after being seated CAUTION l The spark plug must be securely tightened An improperly tightened plug can become very hot and possibly damage the engine l Never use a spark plug with an improper heat range ...

Page 47: ... an enclosed space l The battery contains sulfuric acid electrolyte Contact with skin or eyes may cause severe burns Wear protective clothing and a face shield If electrolyte gets on your skin flush with water If electrolyte gets in your eyes flush with water for at least 15 r minutes and call a physician immediately l Electrolyte is poisonous If swallowed drink large quantities of water or milk a...

Page 48: ...plosive under certain conditions Do not smoke or allow flames or sparks in the area l After installing the filter check for leaks and make sure the area is dry 2 before starting the engine FUEL FILTER REAR WHEEL 6 Headlight bulb replacement Push and twist the bulb connector counterclock wise then remove the connector and bulb When installing the bulb align the projection on the base of the bulb wi...

Page 49: ...nowledge to do so properly Block wheels securely 1 Remove the center cap and cotter pin 2 Remove the wheel hub nut with a 19 mm socket 3 Raise the wheel using a jack at the nearest jack point and remove the wheel 4 Install the wheel in the reverse order of removal Be sure to use a new cot ter pin and bend it properly as shown Jack points Front Rear CENTER CAP COTT R PIN FL AT WASHER ...

Page 50: ...will be very hot Allow them to cool before proceeding 1 Lower the cutter deck 2 Loosen the belt tension adjusting knob Remove the belt stopper B located near the tensioner pulley and raise the pulley on the tensioner arm side Remove the belt from the pulleys starting with the one on the opposite side 3 Remove the belt from the cutter deck driven pulley 4 Open the engine hood and remove the belt st...

Page 51: ...s 3 6 mm 0 1 0 2 in then tighten the 6 mm bolts securely l After installing the belt and adjusting the belt tension see page 201 start the engine and shift the P T O lever into ON and OFF to be sure that it operates properly BELT STOPPER B CUTiER DECK DRIVE BELT 3 B mm 0 1 0 2 in BEkT STOPPER A TS MUFFLER 49 ...

Page 52: ...move the bolt and nuts and then remove the pulley covers 3 Pull the belt off pulley A hold the belt securely and slowly release the idle pulley CAUTION If the belt is not released slowly the idle pulley will move sud denly and could injure your hand 4 Remove the belt from the other pulleys and replace the belt PULLEY PULLEY A 50 ...

Page 53: ...ss 1 Remove the cutter deck from the tractor see page 38 2 Turn the cutter deck upside down 3 Clean dirt and grass from the blade and the inside of the cutter deck 4 Hold the blade firmly and use a torque wrench to check that the blade bolt is properly tightened Blade bolt torque 4 5 5 5 kg m 32 6 39 8 ft lb TORQUE W Blade removal 1 Hold the blade firmly and remove the blade bolt and the washer 2 ...

Page 54: ...e and the low lift blade on the left sides as shown LEFT a FRONT RIGHT c DISCHARGE CAUTION Be sure the blade is properly aligned with the blade holder before tightening the blade bolt Do not allow the blade to overlap the edge of the holder l Install the washer with the side marked INSIDE facing the blade l The blade bolt and washer are specially designed for this application and must not be repla...

Page 55: ...e spark arrester must be serviced every 100 hours to main tain its effifiency 1 Remove the two 5 mm screws from the exhaust pipe tip Remove the exhaust pipe tip and spark arrester CAUTION Be careful not to damage the spark arrester screen 2 Use a wire brush to remove carbon deposits from the spark arrester screen NOTE Inspect the spark arrester screen for holes or tears Replace if necessary 3 Rein...

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Page 57: ...rized HONDA lawn carburetor tractor dealer 7 Discharged battery or Charge battery or retighten terminal loose terminal see p 45 Engine loses power 1 Dirty air cleaner elements Clean or replace elements see p 42 2 Spark plug faulty or Regap plug or replace improperly gapped 3 Engine overloaded Shift to lower speed Engine overheats 1 Cooling air intake plugged Clean cooling air intake see p 15 2 Eng...

Page 58: ...Dead cell in battery Replace battery 2 Loose electrical connec Check connections and lines tions or broken wire Uneven mowing 1 Tractor speed too fast Shift to lower speed 2 Grass accumulation Clean deck inside see p 37 inside deck 3 Dull blade Sharpen blade or replace 4 Tires improperly inflated Check tire inflation see p 22 5 Mower not level Check cutter deck mounting 6 Wrong cutter deck height ...

Page 59: ...o not rotate or stop 1 Blade drive belt worn or Replace with new belt see p 50 broken 2 P T O lever cable cut or See your authorized HONDA lawn out of adjustment tractor dealer 3 Faulty P T O clutch assy See your authorized HONDA lawn or worn disk tractor dealer Tractor does not move or clutch does not engage properly when the transmission is shifted into gear 1 Faulty clutch assy See authorized H...

Page 60: ...single cylinder 4 stroke gasoline engine 406 cm3 24 8 cu in 86 x 70 mm 3 4 x 2 8 in 18 BTDC Transistorized magneto Forced air cooled 1 2P 1 27 US qt BR4HS NGK W14FR U ND l755xl270xl045mm 69 1 x 49 6 x 41 1 in 720 mm 28 3 in 680 mm 26 8 in 1160 mm 45 7 in 965 mm 38 0 in l l 2 2 2 l 2 3 3 l 2 4 in 247 kg 544 6 lb Front 15 x 6 00 6 Rear 18 x 8 50 8 Front 1 0kg cm2 Rear 0 7 kg cm 5 Forward 1 Reverse 1...

Page 61: ...tact the Power Equipment Customer Relations Department of American Honda Motor Co Inc American Honda Motor Co Inc Power Equipment Customer Relations Department P O Box 50 Gardena California 90247 0805 Telephone 213 604 2400 We will need the following information in order to assist you Your name address and telephone number Product model and serial number Date of purchase Dealer name and address Na...

Page 62: ...his way If you are dissatisfied with the decision made by the dealership s management contact the Honda Power Equipment Customer Relations Office You can write American Honda Motor Co Inc Power Equipment Division Customer Relations Office 4900 Marconi Drive Alpharetta GA 30005 8847 Or telephone 770 497 6400 M F 8 30 am 7 00 pm EST When you write or call please provide the following information Mod...

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