FORM NO. 3319–298 REV A ProLine String Trimmer Model No. 53002 — 7900001 & Up Model No. 53003 — 7900001 & Up Model No. 53010 — 7900001 & Up Model No. 53011 — 7900001 & Up 16” & 18” Gas Modèle No. 51903 — 790000001 et suivants Modèle No. 51904 — 790000001 et suivants Modèle No. 51906 — 790000001 et suivants Modèle No. 51907 — 790000001 et suivants 16” & 18” Gas Modelos N. 51903 — 790000001 y siguientes Modelos N. 51904 — 790000001 y siguientes Modelos N. 51906 — 790000001 y siguientes Modelos N.
WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. AVERTISSEMENT: Les gaz d’échappement du moteur de ce produit contiennent des produits chimiques reconnus dans l’état de Californie comme cancérigènes, responsables de malformations congénitales, ou comme nocifs à l’égard des fonctions de la reproduction.
Figures 1 2 English 1. 2. 3. 4. 5. Trimmer Head Gearcase Shaft Assembly Loop Handle Attachment Ring for Shoulder Harness 6. Shaft Grip 7. Clutch Drum Housing 8. Engine 9. Model and Serial Number Decal (on rear of engine stand) 10. Air Filter 11. Trimmer Head Shield 12. Throttle Trigger and Stop Switch 13. Throttle Cable and Stop Switch Wire 14. Fuel Tank 2. 1. 10 feet (3m) Minimum 1. 2. 1. The Toro Company – 1996 Printed in USA 2.
3 5 m-2967 English English 1. 50 ft. (15 m) Minimum 1. Engine 2. M5 x 20 or M6 x 20 Screw Français 1. 1. Español 1. 1. 4 m-2968 ii 2. Español 2. m-2967 3. Shaft 4. Clutch Drum Housing Français 2. 2.
6 8 m-2970 English 1. Loop Handle 2. Screw (4) 3. Rubber Sleeve English 4. Bottom Clamp 5. Nut (4) 1. Shaft Grip 2. Plastic Tube 1. 2. 2. Español Español 1. 3. Stop Switch Wires 4. Throttle Cable Français Français 1. m-2972 1. 2. 2.
9 10 m-2973 m-3041 English English 1. Air Cleaner Cover 2. Cylinder Cover 3. Knob Français 1. iv Throttle Cable Housing Cable Adjuster Sleeve Locknut Throttle Cable 5. 6. 7. 8. Français 2. Español 1. 1. 2. 3. 4. 1. 2. Español 2. 1. 2.
11 12 m-2974 English 1. Cable Adjuster Sleeve 2. Carburetor Throttle Cam 3. Throttle Stop/Idle Speed Adjuster Screw Bracket 2. Español 1. m-2975 English Français 1. 4. Idle Speed Adjuster Screw 5. Slotted Fitting 2. 1. 2. 3. 4. 5. Gearcase Trimmer Head Shield M5 x 25 Screw (2) Flat Washer Plate 6. 7. 8. 9. Lock Washer M5 x 12 Screw (4) Hex Nut String Cutoff Blade Français 1. 2. Español 1. 2.
13 14 1 3 2 1 4 6 5 2 1 m-2976 Model 53002 & 53003 English 1. Gearcase 2. 3mm Hex Wrench 3. Splined Shaft 4. Boss Adapter 5. Trimmer Head Adapter 6. Trimmer Head 2. vi 2. Fuel Return Line 1. 2. Español Español 1. 1. Primer Bulb Français Français 1. English 2. 1. 2.
15 17 1 1 2 3 2 4 m-2939 English Model 53010 & 53011 m-3040 English 1. Primer Bulb 2. Fuel Return Line 1. Stop Switch 2. Fast-idle Lock 3. Throttle Trigger (in fast-idle start position) Français Français 1. 1. 2. 2. Español Español 1. 1. 4. Throttle Trigger (in idle position) 2. 2. 16 1 2 m-2938 English 1. Starter Handle 2. Choke Lever (typical) Français 1. 2. Español 1. 2.
18 20 m-2968 English 1. Throttle Trigger in Idle Position English 2. No Trimmer Head Rotation 2. 1. 2. 3. 4. 2. Français Français 1. m-2968 Español 1. Hearing Protection Eye Protection Right Arm Slightly Bent Left Arm Fully Extended, Hand Holding Loop Handle 1. 5. Hand Holding Throttle Grip, Fingers on Throttle Trigger 6. Trimmer Head Near and Parallel to Ground 2. Español 19 1. m-2974 English 1. Idle Speed Adjustment Screw Français 1. 2. Español 1. viii 2. 2.
21 23 m-2979 m-2981 English 1. Three inches (7.6 cm) Above Ground English Français 1. Three inches (7.6 cm) Above Ground 1. 2. Français Español 1. 1. 2. 2. Español 1. 22 2.
25 26 1 2 3 4 m-2983 5 6 4" and 5" Head Assembly English 1. Housing 2. Eyelet (2) 3. Spool (with Line) 4. Spring 5. Bump Knob 6. Spool Cover Français 1. 2. Español 1. x 2.
1 1 27 28 ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ 2 3 4 m-2930 2 5 English 6 1. Air Filter Cover 2. Foam Filter Français 1. 2. Español 6" Head Assembly 1. 2. English 1. Housing 2. Eyelet (2) 3. Spring 4. Spool (with Line) 5. Bump Knob 6. Spool Cover 29 1 2 3 Français 1. 2. Español 1. 2. m-2997 English 1. Air Filter Cover 2. FIlter Screen 3. Foam Ring Français 1. 2. Español 1. 2.
30 31 m-2931 English 1. Wire 2. Fuel Pick-up Hose 3. Fuel Filter Français m-3010 2. Español English 1. Filter Screen 2. Cutout (typical) 1. 3. Air Filter Cover 4. Plastic Post (typical) 1. 2. Français 1. 32 2. Español 1. 2. m-2927 English 1. Muffler Cover 2. Socket Head Screw Français 1. 2. Español 1. xii 2.
33 35 m-2934 English 1. Screw 2. Cylinder Cover Français 1. 2. Español m-3043 English 1. 2. 1. Socket Head Screw (4) 2. Tail 3. Screen 34 4. Gasket 5. Plate 6. Muffler Français 1. ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ 2. Español 1. 2. m-2932 English 1. .024”–.028” (0.6–0.7 mm) Français 1. 2. Español 1. 2.
36 38 m-2991 m-3042 English 1. Socket Head Screw (2) 2. Tail 3. Gasket English 4. Spark Arrester 5. Muffler 1. Strap Harness Français 1. Français 1. Español 2. 1. Español 1. 2. 37 m-3002 xiv 2. 2.
Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operator Safety . . . . . . . . . . . . . . . . . . . . . String Trimmer Safety . . . . . . . . . . . . . . . . Fuel Safety . . . . . . . . . . . . . . . . . . . . . . . . . Power String Trimmer Operating Safety . . Safety and Instruction Decals . . . . . . . . . . Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DANGER, WARNING and CAUTION are signal words used to identify the level of hazard. However, regardless of the hazard, be extremely careful. 4. Always wear heavy, long pants, boots and gloves. Do not wear loose clothing, jewelry, short pants, sandals, or go barefoot. Secure hair so it is above shoulder length. DANGER signals an extreme hazard that will cause serious injury or death if the recommended precautions are not followed. 5.
8. Maintain the String Trimmer according to the recommended maintenance intervals and procedures in the Maintenance section on page 12. 10. Store fuel and String Trimmer away from open flame, sparks and excessive heat. Make sure fuel vapors cannot reach sparks or open flames from water heaters, furnaces, electric motors, etc. 9. Shut off the engine and wait until the trimmer head has completely stopped moving before checking, performing maintenance on or working on the String Trimmer.
12. Use the right tool for the job. Do not use the Trimmer for any job that is not recommended by Toro. 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. ON SHAFT (Part No. M221501) ON SHAFT (Part No. M221502) Assembly Assembling Engine and Drive Shaft Assembly The drive shaft, clutch drum housing and gearcase are assembled.
2. Insert the throttle cable through the cable adjuster sleeve on the carburetor bracket. Make sure the end of the cable housing is seated positively in the sleeve (Figs. 10 and 11). 3. Position the slotted fitting on the carburetor so the recessed hole for the cable lug is away from the cable adjuster sleeve (Fig. 10). 4. Rotate the carburetor throttle cam clockwise and slip the throttle cable through the slot in the slotted fitting, making sure the cable lug drops into the recessed hole (Figs.
POTENTIAL HAZARD • Foreign objects can be thrown by Trimmer. POTENTIAL HAZARD • If the trimmer head is not adequately tightened, it can come loose from the Trimmer during use. WHAT CAN HAPPEN • Contact with thrown objects can cause personal injury. WHAT CAN HAPPEN • This may cause damage to property or HOW TO AVOID THE HAZARD • Never operate the Trimmer without the trimmer head shield in place. personal injury.
2. Mix and pour fuel outdoors and where there are no sparks or flames. 3. Always shut off the engine before refueling. Never remove the String Trimmer fuel tank cap while the engine is running or right after just stopping the engine. IMPORTANT: Do not use National Marine Manufacturer’s Association (NMMA) or BIA certified oils. This type of 2–cycle engine oil does not have the proper additives for air-cooled, 2–cycle engines and can cause engine damage. Do not use automotive motor oil.
Mixing Gasoline And Oil Fuel Mixture Chart Gasoline IMPORTANT: The engine used on this String Trimmer is of a 2–cycle design. The internal moving parts of the engine, i.e., crankshaft bearings, piston pin bearings and piston to cylinder wall contact surfaces, require oil mixed with the gasoline for lubrication. 50:1 2-cycle oil 1 gallon 2.6 oz. 2 gallons 5.2 oz. 5 gallons 12.8 oz.
Starting And Stopping B. Make sure the throttle trigger is set to the fast-idle start position (Fig. 17). Before Starting The Engine C. Pull the starter handle until the engine starts (Fig. 16). 1. Fill the fuel tank as instructed in the Before Operation section of this manual. 2. Rest the String Trimmer on the ground. 3. Make sure the trimmer head is clear of any broken glass, nails, wire, rocks or other debris. 4. Keep all bystanders, children and animals away from the working area.
Operation POTENTIAL HAZARD • Engine must be running to make some carburetor adjustments. • When engine is running, trimmer head is rotating and other parts are moving. • Read the Safety instructions on page 2 concerning proper use of the String Trimmer. WHAT CAN HAPPEN • Contact with rotating trimmer head or other moving parts could cause serious personal injury or death. HOW TO AVOID THE HAZARD • Keep hands, feet and clothing away from trimmer head and other moving parts.
• Make certain all moving parts have stopped and disconnect the spark plug before inspecting the equipment for damage. • Never use a String Trimmer that has chipped, cracked or broken trimmer head. Rewinding the Trimmer Spool POTENTIAL HAZARD • Use of improper line could cause line to break and be thrown in operator’s or bystander’s direction. Cutting with Nylon Trimmer Line • The tip of the line does the cutting. The line should stay extended while cutting (Fig. 21).
Maintenance IMPORTANT: The air filter screen is designed to fit into the air filter cover ONE WAY ONLY. Make sure the cutouts in the screen fit onto the matching plastic posts in the air filter cover. The fit should be snug (Fig. 30). Air Filter Maintenance Interval 6. • The air filter should be cleaned daily, or more often when working in extremely dusty conditions. • Replace after every 100 hours of operation. Reinstall the air filter cover and tighten the knob (Fig. 29).
• Replace the spark plug (NGK BPM6Y) after every 100 hours of operation. Spark Plug Maintenance 5. Clean the electrodes with a stiff brush (Fig. 34). 6. Adjust the electrode air gap to .024–.028 in. (0.6–0.7mm) (Fig. 34). 7. Replace the spark plug if it is oil-fouled, damaged, or if the electrodes are worn down. 8. Do not overtighten the spark plug when installing. The tightening torque is 95–148 in. lbs. (10.7–16.6 NSm). 9. Reinstall the cylinder and air cleaner covers (Fig. 9).
2. Loosen the knob and lift off the cylinder cover (Fig. 9). 2. Remove the four socket head screws holding the spark arrester assembly to the muffler (Fig. 35). 3. Clean all dirt and debris from the cooling fins and from around the cylinder base. 3. 4. Reinstall the cylinder and air cleaner covers (Fig. 9). Remove and clean the tail, screen, gasket and plate with a safety solvent and a stiff brush. If any part cannot be thoroughly cleaned, it must be replaced. 4.
General Cleaning and Tightening POTENTIAL HAZARD • Oil may squirt out of the spark plug opening when you pull the starter handle. WHAT CAN HAPPEN • Oil can cause eye injuries. POTENTIAL HAZARD • When engine is running, cutting head is rotating and other parts are moving. HOW TO AVOID THE HAZARD • Protect your eyes and keep your face away from the spark plug opening. WHAT CAN HAPPEN • Contact with rotating cutting head or other moving parts could cause serious personal injury or death.
2. POTENTIAL HAZARD • Without the Brushcutter blade shield installed on the String Trimmer, the Brushcutter blade can throw foreign objects. • Without the correct blade shield, handles and strap installed on the String Trimmer, the Brushcutter can produce side thrust which can expose the operator and bystanders to blade contact. Brushcutter Accessory Kit, Model No. 53050—allows you to convert the String Trimmer to a Brushcutter; available for Industrial Models (53002 and 53003) only.
Specifications Note: All models are CARB approved.
California Emission Control Warranty Statement Your Warranty Rights And Obligations The California Air Resources Board and Toro are pleased to explain the emission control system warranty of your 1995 and later lawn and garden equipment engine. In California, new lawn and garden equipment engines must be designed, built and equipped to meet the State’s stringent anti–smog standards.
Manufacturer’s Warranty Coverage: • The warranty period begins on the date the engine or equipment is delivered to the retail purchaser. • The manufacturer warrants to the initial owner and each subsequent purchaser, that the engine is free from defects in material and workmanship which cause the failure of a warranted part for a period of two years. • Repair of replacement of warranted part will be performed at no charge to the owner at an Authorized Toro Service Dealer.
THE TORO TOTAL COVERAGE GUARANTEE A OneĆYear Limited Warranty (A TwoĆYear Full Warranty for Residential Use) LCG What Is Covered By This Express Warranty? The Toro Company promises to repair any TORO Product used for commercial, institutional, or rental purposes if defective in materials or workmanship for a period of one year from the date of purchase. The cost of parts and labor are included, but the customer pays the transportation cost.
