Owner’s Manual Trimmer/Mower • • • • • Safety Assembly Features/Controls Operation Maintenance • Parts List Models 52051– 4HP Std. 52052– 4.5 HP Elec. TH • Obje RO sma the ll cts sucWN deb OB • Keehazardcutting ris h as JEC p chil to eyeshea will rock • Befeet awa be s, T HA d, resu thro peb aler y dren and t to from , pets exp ltingwn bles ZA hidd mac and ose in viol and RD Do RO en hine bys d signently bod ifica by obs othe not and r servTATIN tacl whil tand y part nt es.
Dear Owner: You now own one of the finest trimmer/mowers available. It was designed to easily handle a wide variety of trimming, mowing and clearing chores. You will find the Trimmer/Mower to be an invaluable tool in caring for your property. Please carefully read this Manual which tells you how to safely and easily assemble, operate, and maintain your machine. Be sure that you and any other operators carefully follow the recommended safety practices at all times.
Section 1 Safety SPARK ARRESTER WARNING TO RESIDENTS OF CALIFORNIA AND SEVERAL OTHER STATES Under California law, and under the laws of several other states, you are not permitted to operate an internal combustion engine using hydrocarbon fuels on any forest covered, brush covered, or grass covered land, or on land covered with grain, hay, or other flammable agricultural crop, without an engine spark arrestor in continuous effective working order.
Section 1: Safety 20. Always wear approved safety goggles or safety glasses with side shields when operating equipment. The use of any powered machine can result in foreign objects being thrown by highspeed rotating parts which can cause personal injury or property damage. Stay away from glass and other easily thrown or breakable objects. 21. Wear work gloves and sturdy footwear when using this equipment. Leather work shoes or short boots are ideal.
Section 1: Safety 2. Never run the engine inside a closed area. 3. Never clean, make adjustments or repairs with the engine running. Disconnect the spark plug wire and keep the wire away from the plug to prevent accidental starting. Remove key on electric start models. 4. Keep all nuts and bolts tight, especially the trimmer head attachment bolts, and keep equipment in good condition. Check mounting hardware on trimmer head every time you change trimmer line and prior to each use. 5.
Section 2 Assembly WARNING STEP 1: Unpack, Check Contents STEP 2: Install Handlebars To prevent personal injury or property damage, do not attempt to start the engine until all assembly steps are complete and you have read and understand all of the safety and the operating instructions in this Manual. Remove and discard all protective packaging material (plastic film and cardboard) from the handlebars and the machine.
Section 2:Assembly STEP 3: Add Motor Oil CAUTION Do not overfill the engine with motor oil as engine damage could result. A. The unit’s engine was shipped without motor oil which MUST BE ADDED before the engine is started. B. See the Engine Owner’s Manual you received for filling instructions and for the correct oil specifications for your engine. Engine must be level when checking oil level.
Section 3 Features and Controls The following are features and controls found on the various models of the Trimmer/Mower. Read the description and location of each feature and control. Unless otherwise noted, a detailed descriptions of each feature and control can be found in “Section 4: Operation.” MOWER CONTROLS/FEATURES Trimmer Head Control Bail The control bail (A, Fig. 3-1) is used to start and stop trimmer head motion. Pull the control bail up against the handlebar to activate the trimmer head.
Section 4 Operation E. Check the trimmer head control bail for freedom of movement. WARNING Before operating your machine, carefully read and understand all safety (Section 1), controls (Section 3) and operating instructions (Section 4) in this Manual, in the separate Engine Owner’s Manual, and on the decals on the machine. Failure to follow these instructions can result in serious personal injury.
Section 4: Operation ADJUST LINE CUTTING HEIGHT CAUTION Before adjusting the cutting height, shut off the engine, wait for all moving parts to stop, allow the engine to cool, disconnect the spark plug wire and prevent it from touching the spark plug. Failure to comply could result in personal injury or property damage. Cutting Height Adjustment The cutting height of the trimmer line adjusts from 1-1/2"-to-4-1/2" high in infinite increments.
Section 4: Operation OPERATING THE TRIMMER / MOWER Once you have read and understood the sections in this Manual on “Safety,” “Features and Controls,” “Assembly,” and “Operation,” you are ready to start and operate your trimmer/mower. WARNING “START” position to start the engine. (Use short starting cycles –15 seconds per minute– to extend starter life.) When released, the key will automatically move to the “RUN” position. Checklist Before Starting: 1.
Section 4: Operation TRIMMING & MOWING TECHNIQUES AND TIPS Trim When Wet or Dry Grass and most other materials are most efficiently trimmed when dry. But the trimmer/mower will do a fine job even with damp or wet materials. When conditions are moist or damp, be sure to clean debris off the machine regularly to keep cutting efficiency high. And watch your footing. Clean the Trimmer/Mower On a Regular Basis Clean under the trimmer/mower frequently to remove any grass buildup.
Section 5 Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the machine, shut off engine, disconnect spark plug wire, and make sure that all moving parts have come to a complete stop. Remove ignition key on electric start models. Failure to follow these instructions can result in personal injury or property damage. NOTE: All references to left, right, front and rear of the machine are determined by standing behind the handlebars and facing the direction of forward travel.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage. ADJUSTING TRIMMER HEAD ENGAGEMENT REMOVING & REPLACING THE TRIMMER HEAD A.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage. INSPECTING / REPLACING THE DRIVE BELT The drive belt can be inspected or replaced from beneath the machine deck.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage. BELT PERFORMANCE TROUBLESHOOTING Sub-par belt performance (noise, overheating, cracking, etc.), can be caused by several situations.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage. Replace the trimmer lines when they wear to the point that trimming and mowing projects take too long and require too much movement.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage.
Section 5: Maintenance/Repairs WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models. Failure to follow these instructions can result in serious personal injury or property damage. BATTERY RECHARGING DANGER • Wet conditions can cause an electric shock hazard during battery charging. Avoid when conditions when charging.
Section 5: Maintenance/Repairs TROUBLESHOOTING Before performing any of the corrections in this Troubleshooting Chart, refer to the appropriate information contained in this Manual for the correct safety precautions and operating or maintenance procedures. Contact your local authorized Engine Service Dealer for engine service. Contact your local authorized Trimmer/Mower dealer for service problems with the machine. PROBLEM Engine does not start. POSSIBLE CAUSE 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Parts Ordering Information If you need service or parts: WARNING For service assistance or parts, contact your local authorized dealer or the factory. WE URGE USING ONLY GENUINE REPLACEMENT PARTS WHICH MEET ALL THE LATEST REQUIREMENTS. REPLACEMENT PARTS MANUFACTURED BY OTHERS COULD PRESENT SAFETY HAZARDS, EVEN THOUGH THEY MAY FIT ON THE UNIT. Your local dealer or the factory service department will need to know the model/serial numbers of the unit to provide the most efficient service.
Trimmer/Mower Parts List 15 35, 36 7 14, 38 6 16 9 33 34 22 21 8 26 13 19 37 12 18 26 2 42 39 37 20 17 24 3 5 37 4 43 40 23 1 32 37 23 24 28 27 41 23 41 25 28 40 22 31 29 30 25 ENGINE, DECK, COVERS AND GUARDS, BATTERY 20 31
Models 52051 and 52052 ENGINE, DECK, COVERS AND GUARDS, BATTERY Ref. # 1 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 20 21 22 23 24 Part # 1916993 1904511 1904403 1739687 1915964 1915892 1916853 1916854 * * 1915965 9301 1915240 1915276 1915304 1916571 1910835 1909647 1909697 1915268 1915204001 90063 1768194 1754128 Description Deck with decals....................................... Decal-Hot Surface..................................... Decal-Warning/Thrown Objects ................ Decal-Danger Feet/Hands ....
Trimmer/Mower Parts List HANDLEBAR ASSEMBLY 4 1 7 9 2 10 7 19 13 5 12 14 19 25 22 24 23 20 17 14 22
Models 52051 and 52052 HANDLEBAR ASSEMBLY Ref. # 1 2 3 4 5 6 7 9 10 11 12 13 Part # Description 1915963 1915889 ---1915270001 1749977001 ---1908677 1908673 1910852 ---1983658 1185814 (A) Model 52051 Upper Handlebar w/decal ....................... Bail Decal ............................................... Ref. No. Not Used Bail ......................................................... Cable Bracket ......................................... Ref. No. Not Used Nyliner Bushing...............................
Trimmer/Mower Parts List 14 17 1 13 17 2 15 3 14 13 5 13 7 15 5 1 13 2 3 13 LOWER STEERING ASSEMBLY Ref. # 1 2 3 5 13 Part # 1910823 1915823 1915824 1733398 1744708 Description Wheel - 6 spoke ..................................... Wheel Stud............................................. Wheel Mounting Bracket ........................ Top Lock Nut, 3/8-16 ............................. Hex Lock Nut, 5/16-18 ........................... Qty. Ref.
Models 52051 and 52052 TRIM HEAD ASSEMBLY Ref. # Part # 1 2 3 4 1910863 1910861 1915857 -- 5 6 7 8 1910862 1915220001 1915239 1904308 Description Qty. Shoulder Washer.................................... Spindle Head .......................................... Trimmer Head ........................................ Trimmer String (see Ref. 1 and 2 below) ..................................... Hex Spline Washer ................................. Wear Cup ...............................................
CUSTOMER SERVICE INFORMATION Owner Registration Card Please fill out and mail the enclosed owner registration card. The purpose of this card is to register each unit at the factory in order to keep the owner informed with informational bulletins and safety literature. Customer Service and Technical Service If you have questions or problems with the unit, contact your local dealer or call or write to the factory. (When calling or writing the factory, provide the model/serial number of the unit.