Owner’s Manual SNOWTHROWER HS621 iii 01994 I American Honda II I II Motor Co., Inc.
Thank you for purchasing a Honda snowthrower. We want to help you get the best results from your new snowthrower and to operate it safely. This manual contains the information on how to do that; please read it carefully. This owner’s manual describes the operation and maintenance of HONDA snowthrower: HS621 All information in this publication is based on the latest product information available at the time of printing. Honda Motor Co., Ltd.
CONTENTS SAFETY ................................................................................................................ Safety label locations ...................................................................................... 4 Safety Information .......................................................................................... COMPONENT IDENTIFICATION .........................................................................7 8 CONTROLS ..................................................
SAFETY Safety label locations These labels warn you of potential hazards that can cause serious injury. Read them carefully. If a label comes off or becomes hard to read, contact your Honda snowthrower dealer for a replacement. ISHUT OFF ENGINE WHEN REFUELING.
Safety information To ensure safe operation* Always make a pre-operation check (pages 11 thru 13 1 before you start the engine. You may prevent an accident or equipment damage. l Honda snowthrowers are designed to give safe and dependable service if operated according to instructions. Read and understand this Owner’s Manual before operating the snowthrower. Failure to do so could result in personal injury or equipment damage.
Adjust the snow discharge chute to avoid hitting the operator, bystanders, windows, and other objects with ejected snow. Stay clear of the snow discharge chute while the engine is running. .* Children and pets must be kept away from the area of operation to avoid injury from flying debris and contact with the snowthrower. l To avoid overturning, be careful when changing the direction of the snowthrower while operating it on a slope. Do not use the snowthrower to remove snow from roofs.
l l l Gasoline is extremely flammable and is explosive under certain conditions. Do not smoke or allow flames or sparks where the snowthrower is refueled or where gasoline is stored. Refuel in a well-ventilated area with the engine stopped. Do not overfill the fuel tank, and make sure the filler cap is closed securely after refueling. Never run the engine in an enclosed or conffined area. Exhaust contains poisonous carbon monoxide gas; exposure can. cause loss of consciousness and may lead to death.
COMPONENT IDENTIFICATION AUG/ER CLUTCH LEVER CHUTE GUIDE HANDLE CHUTE GlJ@E . CAP CHUTE’ \\, AUGERPADDLE’ / 7 CENTER PADDLE ENGIkjE SWITCH STARTER BUTTON SPARK PLUG COV ENGINE SERIAL NUMBER I ENGINE OIL DRAIN PLUG ’ SCRAPER BLADE \ FRAME SERIAL NUMBER Record the frame and engine serial numbers for your reference. Refer to the serial numbers when ordering parts, and when making technical or warranty inquiries (see page 41 1.
CONTROLS Engine switch Use the engine switch to turn the ignition system ON for starting, and to STOP the engine. ENGINE SWITCH A.C. starter button Push the starter button to operate the electric starter. (AS type) STARTER SUTTON Fuel valve The fuel valve opens and closes the fuel line leading from the fuel tank to the carburetor. Make sure that the valve is positioned exactly at either the ON or OFF position.
Choke knob Close the choke when the engine is cold or difficult to start. CHOKE KNOB Starter grip Pull this grip to start the engine. ” ,c _.-.-_.
Chute guide handle The chute guide controls the snow discharge angle and direction. Auger clutch lever When the clutch lever is squeezed, the snowthrowing into operation, and the snowthrower moves forward. mechanism is put OPERATES AUGER CLUTCH L NOTE: Never squeeze the auger clutch on cleared ground; the snowthrower start suddenly.
PRE-OPERATION CHECK Fuel recommendation Check the snowthrower on level ground with the engine stopped. Check the fuel level, and refill the tank if the fuel level is low. Refuel carefully to avoid overfilling or spilling fuel. There should be no fuel in the filler neck. FUEL TANK CAPACITY: l l l l l 1.25 0 (0.330 US gal ,0.275 Imp gal) Gasoline is extremely flammable and is explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped.
Occasionally you may hear light “spark knock” or “pinging” (metallic rapping noise) while operating under heavy loads. This is no cause for concern. If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. If spark knock or pinging persists, see an authorized Honda snowthrower dealer. rGi%iE-J Running the engine with persistent spark knock or pinging can cause engine damage.
Engine oil Inspection: With the snowthrower on a level surface, remove the oil filler cap and wipe the dipstick clean. Insert the dipstick into the filler neck, but do not screw it in. Remove the dipstick and check the oil level. If the level is low, fill to the top of the oil filler neck with the recommended oil. OIL FILLER NECK -xl -30 0 -20 20 -10 40 WF 0 10-C 011 5w-30 OIL FILLER CAP AND DIPSTICK OIL CAPACITY: UPPER LEVEL 0.60 Q (0.63 US qt ,0.63 Imp qt) 0 G &p r--z-7.:::: -.r:......
STARTING THE ENGINE Never run the engine in an enclosed or confined area. Exhaust contains poisonous carbon monoxide gas; exposure can cause loss of consciousness and may lead to death. 1, Connect the female end of your power cord to the switch box and the male end to a properly grounded 120 Volt A/C outlet. (AS Type) IUSE ONLY WITH GROUNDEO OUTLET ANCI 3-WIRE CORD. 1120 VOLT A.C. ONLY NO0 NOT CRANK OVER I MINUTE WllHOlJl~~\ COOLING 16 MINUTES. NO0 NOT USE IN RAIN. ^.m.-/r\ ^a-- 1 2.
2. Turn the fuel valve to the ON position. Be sure that the drain knob is tightened securely. FUEL VALVE DRAIN KNOB 3. In cold weather and when the engine is cold, move the,choke to the CLOSE position. CHOKE KNOB 4. Pull the starter grip lightly until you feel resistance, then pull briskly. JV] Damage may result if the starter grip is pulled while the engine is running.
l l l l Push the starter button until the engine starts. (AS Type) Do not operate the starter for more than 1 minute. If the engine fails to start, release the button and allow the starter to cool for 15 minutes before operating it again. To avoid serious engine damage, never operate the starter while the engine is running. After the engine starts, disconnect the power cord from the electrical outlet first, and then from the switch box. STARTER BUTTON 5. Let the engine warm up for several minutes.
SNOWTHROWER OPERATION Before operating this equipment you should read and understand the SAFETY INFORMATION on page 4-6. 1. Hold the handle firmly with your one hand. 2. Squeeze the auger clutch lever with your other hand to engage the snowthrowing mechanism. When you release your hand, it will stop. AUGER CLUTCH LEVER NOTE: To move the snowthrower forward, raise the handle up and away from the ground. The snowthrower will move forward as long as the auger contacts the ground.
3.Start the snowthrowing operation only after the engine has warmed up and is running smoothly. l l Adjust the snow discharge chute to avoid hitting the operator, bystanders, windows, and other objects with thrown snow. Stay clear of the snow discharge chute while the engine is running. If the snow discharge chute becomes clogged, stop the engine and use a wooden stick to unclog it. Never put your hand into the snow discharge chute while the engine is running; serious personal injury could result.
4. When the temperature is high, and the snow is wet and heavy, operate at reduced speed. l Walk the snowthrower slowly to remove hard or deep snow. Push handle down and forward for additional traction and overlap each swath if necessary. 5. When the height of the snow is greater than the height of the snowthrowing mechanism, push the snowthrower back and forth to remove snow gradually.
High altitude operation At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plug, cause hard starting and contribute to air pollution. High altitude performance can be improved by installing a smaller diameter main fuel jet in the carburetor and readjusting the pilot screw.
STOPPING THE ENGINE To STOP the engine in an emergency, turn the engine switch immediately. To stop the engine in normal circumstances. 1 .Turn the engine switch to the OFF position. OFF FF ENGINE SWITCH AS Type A Type 2. Turn the fuel valve to the OFF position.
MAINTENANCE Periodic inspection and maintenance will help extend the service life of your snowthrower while keeping it in the best operating condition. Inspect or service as described on the next page. l l l l Shut off the engine before performing inspection and maintenance, and disconnect the spark plug wire from the plug so the engine cannot be started. If the engine must be run, make sure the area is well-ventilated.
Maintenance schedule . .
Tool kit SPARK PLUG WRENCH WRENCH HANDLE .
Engine oil change , Drain the oil while the engine is still warm to assure rapid and complete draining. 1. Remove the drain plug and filler cap, and drain the oil. Retighten the drain plug securely. 2. Fill the crankcase with the recommended oil (see page 13 1 and check the level. OIL CAPACITY: 0.60 Q(0.63 US qt ,053 Imp qt) UPPER LEVEi Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods.
Spark plug service Recommended spark plug: BPR5ES (NGK) W 1GEPR-U(NIPPONDENSO) mmm If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler while it is hot. To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. 1, Remove the spark plug cover then the spark plug cap. 2 Clean any dirt from around the spark plug base. 3. Use the wrench supplied in the tool kit to remove the spark plug. SPARK PLUG WRENCH 4.
5. Measure the plug gap with a feeler gauge. Correct as necessary by bending the side electrode. The gap should be: 0.70-0.80 mm 10.028-0.031 in) PLUG GAP 4 6. Make sure that the spark plug washer is in good condition and thread the spark plug in by hand to prevent cross-threading. 7.After the spak plug is seated, tighten with a spark plug wrench to compress the washer. NOTE: If installing a new spark plug, tighten l/2 turn after the spark plug seats to compress the washer.
Scraper inspection, adjustment and replacement If the auger housing guard and the scraper are deformed or improperly adjusted, the snowthrower will not clear the snow evenly. The snowthrower should be inspected and adjusted, and any faulty parts should be replaced. To Prevent accidental starting, turn the engine switch to the OFF position and disconnect the spark plug cap. Inspection: 1. Place the snowthrower on firm, level ground and check that the scraper blade contacts the ground evenly.
2. Set the chute straight ahead, and raise the chute guide to its highest position. 3.Tilt the snowthrower forward until it rests on the auger auger housing and chute guide. 4. Loosen the four self-locking nuts and lower the scraper blade fully. 5. Adjust the auger paddle-to-ground clearance by rotating the holders. NOTE: l The holders can be set in four directions. Be sure that all hoMers are set in the same directions.
6.Tighten the self-locking nuts securely while holding the blade firmly against the holders. 7. Return the snowthrower to the original position and check that the scraper blade contacts the ground evenly. Then, check that the auger paddle-to-ground clearance: 0- 2 mm (O-0.08 in) Replacement The scraper must be replaced if it is worn abnormally or the service limit is exceeded. 1.Turn the engine switch off and drain the fuel tank. 2. Lift the handle so that the auger housing faces down. 3.
Auger clutch cable inspection and adjustment Inspection For the auger brake to operate properly, there should be free play in the auger clutch cable with the auger clutch set in the “OFF” position. Check the free play at the tip of the clutch lever. Free play at the tip of the lever should be: 15.0-35.0 mm (0.59- 1.38 in) Adjustment is necessary if the free play is not within specification. Adjustment 1. Loosen the belt cover bolts and remove the belt cover. 2.
4. Adjust auger clutch lever free play by hooking the belt tension spring and /or clutch cable into the other holes in the adjusting plate. Move the spring and cable closer together to reduce free play, or farther apart to increase free play. ADJUSTING PLATE BELT TENSION SPRING CLUTCH CABLE 5. Connect the upper cable end to the clutch lever, and check clutch lever free play again (see page 31 1.Readjust if necessary.
Drive belt inspection The drive belt is subject to wear and deterioration and should be checked every year before operation. If the snow discharge performance drops while operating the snowthrower, or if it clogs often with snow, the problem may be due to belt slippage. 1. Check auger clutch lever free play (see page 311, and adjust if necessary. 2. Remove the belt cover bolts, then remove the belt cover.
3.Slide the cable boot upward. The drive belt should be adjusted if the lengh “A” of the drive belt tension spring is less than 30 mm (1.18 in) with the auger clutch lever squeezed fully. If adjustment is required, consult your authorized Honda dealer.
I Paddle inspection The paddles are subject to wear and deterioration and should be checked every year before operation. Worn paddles reduce snow removal performance, and loose paddles, or loose material from damaged or deteriorated paddles, may damage the auger housing guard. To prevent accidental starting, turn the engine switch to the OFF position and disconnect the spark plug cap. 1. Drain the fuel. (See page 36 1 2.Tilt the snowthrower by raising the front end of the housing using the stopper. 3.
STORAGE STRAGE TIME Less than 1 month RECOMMENDED SERVICE PROCEDURE TO PREVENT HARD STARTING No preparation required 1 to 2 months Fill with fresh gasoline and add gasoline conditioner *. 2 months to 1 year Fill with fresh gasoline and add gasoline conditioner”. Drain the carburetor float bowl and fuel sediment cup (p. 37 1. 1 year or more Fill with fresh gasoline and add gasoline conditioner*. Drain the carburetor float bowl and fuel sediment cup (p. 37 1.
FUEL VALVE DRAIN H c. Keep the fuel valve OFF, remove, empty and clean the fuel strainer cup. d. Install the fuel strainer cup and tighten securely. UP 3.Remove the spark plug cover and spark plug and pour three tablespoonsful of clean motor oil into the cylinder. Pull the starter grip slowly two or three times to distribute the oil. Reinstall the spark plug.
4.Pull the starter grip until resistance is felt. This closes the valves and protects the engine from internal corrosion. Apply oil to the following parts for lubrication and rust prevention. 3l CHUTE ADJUSTI BOLT WHEEL SHAFT 7 l AUGER SHAFT BEARINGS Check all nuts, botts and fasteners, 38 and tighten securely if necessary.
TROUBLESHOOTING When the engine will not start: 1, Is the engine switch on? 2. Is the fuel valve on? 3. Is there enough fuel? If any fuel is spilled, make sure the area is dry before testing the spark plug or starting the engine. Spilled fuel or fuel vapor may ignite. 4. Is gasoline reaching the carburetor? To check, loosen the drain knob with the fuel valve on. Fuel should flow freely. 5. Is there a spark at the spark plug? a. Remove the spark plug cap.
SPECIFICATIONS Frame Model I I HS621 AS A Items SZAN b”“lz I 1I Overall length 1.230 mm (48.4 in) Overall width 570 mm (22.4 in) Overall height 980 mm (38.6 in) Dry weight 1 43.5 kg (95.9 Ibs) 41.5 kg (91.5 lbs) Wit Ith of snow clearance I 522 mm (20.6 in) Height of snow clearance 323 mm i12.7 in) Snowthrowing distance (differs Max. 10 m (32.8ft) accordingto the kind of snow) Clearing capacity 33 Ton/hour Continuous operating time 1.
CUSTOMER SERVICE INFORMATION . n Honda power equipment dealership personnel are trained professionals. They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership’s management. The Service Manager or General Manager can help. Almost all problems are solved in this way.
Current customer service contact information: United States, Puerto Rico, and U.S. Virgin Islands: Honda Power Equipment dealership personnel are trained professionals. They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership's management. The Service Manager or General Manager can help. Almost all problems are solved in this way.
INDEX COMPONENT IDENTIFICATION .........................................................................7 CONTROLS .......................................................................................................... AC. starter button ..........................................................................................ii Auger clutch lever .........................................................................................10 Chute guide handle ................................................
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