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Walk Behind Lawn Mower
Owner/Operator Manual
Models
911086 - LM21
911087 - LM21S
ENGLISH
FRANÇAIS
ESPAÑOL
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01198200A 2/04
producto.
Supersedes 01198200
Printed in USA
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CONTROLS AND FEATURES 13. Trous de réglage du guidon 11 ESPAÑOL 1 1. Control del motor 2. Varilla de control de velocidad 10 3. Cebador 9 4. Cubierta de la descarga lateral 7 5. Deflector de la descarga 2 lateral 8 6. Palancas de la altura de 12 6 corte (ajustadores de la rueda) 7. Puerta trasera 13 8. Manillares ajustables y 6 plegables 9. Bolsa de recolección del césped 10. Manilla de arranque de 5 retroceso 4 3 11. Control de la transmisión de la rueda Figure 1 OM1410 (autopropulsi
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TABLE OF CONTENTS Controls and Features . . . . . . . . . . . . . 3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . 18 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Troubleshooting . . . . . . . . . . . . . . . . . 19 Assembly . . . . . . . . . . . . . . . . . . . . . . . . 9 Service Parts . . . . . . . . . . . . . . . . . . . . 20 Operation . . . . . . . . . . . . . . . . . . . . . . . 10 Accessories . . . . . . . . . . . . . . . . . . . . . 20 Maintenance . . . . . .
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5. Instruct customer on controls and DISCLAIMER operation of unit. Discuss and emphasize Ariens reserves the right to discontinue, make the Safety Rules. Give customer changes to, and add improvements upon its Owner/Operator, Parts, and Engine products at any time without public notice or manuals. Advise customer to thoroughly read and understand them. obligation.The descriptions and specifications contained in this manual were in effect at printing. Equipment described within this ma
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SAFETY DECALS AND LOCATIONS ALWAYS replace missing or damaged safety decals. Refer to Figure 3 for safety decal locations.
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Fumes from engine exhaust can cause death SAFETY RULES or serious injury. DO NOT run engine in an If unit is to be used by someone other than enclosed area. original purchaser; loaned, rented or sold, ALWAYS provide this manual and any needed ALWAYS protect eyes, face, and body with safety training before operation. adequate safety gear and protective clothes. Wear sturdy footwear, gloves and safety Read, understand and follow all safety goggles or safety glasses with side shields prac
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Stop engine before removing and emptying • NO Flames! grass bag. • Allow engine to cool before filling fuel tank. When mulching or bagging, ALWAYS install Never fill containers inside a vehicle or on a discharge cover. truck or trailer bed with a plastic liner. Always When side discharging, ALWAYS install side place containers on the ground away from discharge deflector. your vehicle before filling. ALWAYS shut off engine, allow blade to stop When practical, remove gas-powered and disco
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Replace worn-out mufflers immediately. ALWAYS clean unit before extended storage. Continued use could result in fire or explosion. See engine manual for proper storage. Sharp edges can cut or amputate fingers or a DO NOT store unit inside a building with fuel in hand. Wrap blade or wear sturdy gloves to the fuel tank where any ignition sources are service. present. Use only replacement parts designed for your Use only accessories which have been unit. See your Ariens Dealer. approved by Arie
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1 3 2 1. Speed Control Rod 2. Hair Pin 3. Speed Control Bell Crank OM0300 Figure 5 OPERATION Handlebar CONTROLS AND FEATURES Adjust handlebar to a safe and comfortable See Figure 1 for locations. height. Refer to Service and Adjustments for instructions. WARNING: Improper operation can Recoil Starter Handle lead to injury. Learn what the controls do and how they work. When pulled, handle will turn engine over. Thoroughly read and understand entire Operator Manual. CUTTING HEIGHT ADJUSTMEN
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High Low Low High 1 1 Rear Front 1. Cutting Height Lever OM0165 Figure 6 Speed control rod should hold the desired Cutting Height Settings Chart speed. If not, adjust speed control bell crank Notch Cut grass length (See Service and Adjustments). LOW 1" (25 mm) WHEEL DRIVE CONTROL (self- 2 1-3/8" (35 mm) propelled models) 3 1-3/4" (45 mm) 4 2-1/4" (57 mm) CAUTION: Unit will move forward at engine start if wheel drive control is 5 2-3/4" (70 mm) engaged. ALWAYS release wheel HIGH 3-1/4" (83 m
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FILLING FUEL TANK Grass Bag Removal 1. Shut off unit. 2. Lift rear door. CAUTION: AVOID INJURY. Read 3. Use handle to lift bag off mounting flange. and understand the entire Safety section before proceeding. 4. Close rear door. NOTE: Empty grass bag and clean mower pan after each use. DO NOT allow grass To add fuel to fuel tank: clumps or a grass coating to collect inside of 1. Put unit in open or well-ventilated area. grass bag or mower pan. Remove grass bag from mower, wash bag with hos
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2. For engines with a primer, push primer 2. Release engine/blade control. bulb 2 or 3 times for a cold engine. Mowing Tips NOTE: It is unnecessary to prime or choke a Cut grass when it is dry. warm engine. Keep mower blades sharp. 3. With engine/blade control held against the handlebar, grasp starter handle and Do not set cutting height too low. For tall pull rope slowly until it pulls harder. This grass, mow twice. is the compression stroke. Let rope Do not mow too fast. rewind slowly.
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CHECK WHEEL DRIVE CONTROL 2 (self-propelled models) 3 The unit must stop quickly and completely when the control is released. Adjust or repair if 1 necessary. See Service and Adjustments. CHECK GRASS BAG Check grass bag frequently for wear or 1 deterioration. Replace worn or damaged bag OM0235 with Ariens original equipment replacement bag only. Replace CLEAN UNIT Before each use clean unit, muffler and engine 4 surfaces of debris, oil or fuel spills to ensure proper cooling and prevent f
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NOTE: Loose spark plug wire terminals can Every 100 hours of operation or yearly (more cause sparking. Replace terminal if damaged. often if conditions require) remove blower housing and clean cooling fins. See engine CHECK ENGINE COOLING manual for instructions. CHECK MUFFLER WARNING: HOT SURFACES can Check muffler for debris, cracks, wear, or cause death or serious injury. DO NOT TOUCH parts which are hot other damage. from operation. ALWAYS allow parts to cool. CAUTION: Replace worn ou
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4. Tighten lower ENGINE/BLADE CONTROL cable nut to 1/8" ADJUSTMENT (3mm) below To adjust engine/blade control: bracket. Release z-bend bracket. 1. Loosen cable nuts away from bracket. OM1020 5. Tighten upper cable nut until bracket is secure between cable nuts. OM1030 6. Engage engine/blade control. Measure distance between middle of z-bend and cable bracket. Measurement should be as shown below. 1.325"-1.788" (3.4cm - 4.5cm) OM1010 2. Squeeze z-bend bracket at engine end o
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DRIVE BELT REPLACEMENT WHEEL DRIVE CONTROL (self-propelled models) ADJUSTMENT (self-propelled models) See Figure 11. 2 6 1-1/2" to 2" 1 (3.8 to 5cm) 2 4 3 4 3 5 1 OM0290 1. Blade 1. Traction Cable 2. Bolt, Lock Washer & 2. Handlebar Indentation Flat Washer 3. Cable Nuts 3. Drive Belt 4. Wheel Drive Control 4. Idler 5. Drive Sheave 6. Engine Pulley Figure 11 The wheel drive must start to engage when Figure 10 OM1250 wheel drive control is between 1-1/2” and 2” (3.8 and 5 cm) away from the ha
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SPEED CONTROL BELL CRANK 1 (self-propelled units) 2 The speed control bell crank holds the speed control rod in position after a speed has been set. The spring washers may become loose with normal wear. If the speed control rod does not stay firmly in position, adjust the speed control bell crank. See Figure 12. 4 To adjust: 1. Remove cover, fully compress the helical spring lock washers with lock nut and then back lock nut off, one 3 quarter turn. 5 6 2. If the speed control rod is stil
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TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTION 1. Fuel tank empty or low. 1. Check fuel level. Fill tank if Engine will necessary. 2. Spark plug wire loose or off. not start 2. Check connection. 3. Engine/Blade control cable detached, broken, or not 3. Check cable. Adjust, repair adjusted properly. or replace as necessary. 1. Mower clogged with grass. 1. Clear clippings from under Engine is mower. (Allow the mower to difficult to clear clippings before restart shutting off engine.)
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SERVICE PARTS ACCESSORIES Always use genuine Ariens parts to keep See your authorized Ariens dealer to add your mower running like new. these optional accessories. Mower Model 911086 911087 71102400 Dethatcher Air Filter 21535600 71103700 Leaf Shredder Fuel Filter 21533900 71103000 Grass Bag Blade 01137000 71103200 Rear Discharge Chute 71103500 Mulchmaster Mulching Kit 71104100 Swivel Wheel Kit GB - 20
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SPECIFICATIONS Model Number 911086 911087 Description LM21 LM21S Length - in (cm) 61.5 (156) Height - in (cm) 38 (96,5) Width - in (cm) 23 (58,4) Actual Weight - lbs (kg) 77 (35) 93 (42,27) Cutting Width 21 (53,3) Cutting Height - in. (cm) 6 Positions: 1.00 - 3.25 (2,5 - 8,3) Engine, 4 cycle Briggs & Stratton Quantum Engine Power Max - HP (kw) 3.6 (2,6) Max Rotation Speed -1 3100 of Cutting Edge - RPM (min ) Governed RPM 3000 +/- 100 12 (197) Displacement Cu. In. (cc) Cylinder Bore Aluminum Eng
