Troy-Bilt 52051- Manual

3 Section 1: Safety and debris shield. Make sure they arenot bent, damaged, or loose. 10. Only use eighteen-inch long .130"or .155" diameter trimmer line. Neveruse other lengths, diameters or materialas trimmer line. 11. Trimmer line moves at high speedand can cut. Alwaysstop the engine and ...

2 4 Section Assembly Introduction Carefully follow these assembly stepsto correctly prepare your machine foruse. It is recommended that you readthis section in its entirety before begin-ning assembly.NOTE: If an assembly step applies onlyto certain models, those models arenoted at the beginning of t...

5 Section 2:Assembly STEP 3: Add Motor Oil A. The unit’s engine was shippedwithout motor oil which MUST BEADDED before the engine is started. B. See the Engine Owner’s Manual youreceived for filling instructions and forthe correct oil specifications for yourengine. Engine must be level whenchecking ...

6 3 Section DA NG ER KEEP HANDS and FEET AWAY WA RNIN G THR OW N O BJE CT H AZA RD Objects such as rocks, pebbles and small debris will be thrown violently by the cutting head, resulting in significant hazard to eyes and exposed body parts! Keep children, pets and bystanders 50 feet away from machin...

7 4 Section Operation NOTE: All references to left, right, frontand rear of the machine are determinedby standing in the operator’s position. PRE-START CHECKLIST A. Review Section 1: Safety and alsoSection 3: Features and Controls. B. Check equipment for loose or miss-ing hardware. Tighten or replac...

8 Section 4: Operation ADJUST LINE CUTTING HEIGHT Cutting Height Adjustment The cutting height of the trimmer lineadjusts from 1-1/2"-to-4-1/2" high ininfinite increments. The cutting heighthas been factory-set at one of thehigher settings– we recommend thatyou start at this higher setting a...

9 Section 4: Operation Once you have read and understoodthe sections in this Manual on “Safety,”“Features and Controls,” “Assembly,”and “Operation,” you are ready to startand operate your trimmer/mower. Checklist Before Starting: 1. Complete the Pre-Start Checklist inthis section of the Manual. You ...

10 Trim When Wet or Dry Grass and most other materials are most efficiently trimmed when dry. Butthe trimmer/mower will do a fine jobeven with damp or wet materials.When conditions are moist or damp, besure to clean debris off the machineregularly to keep cutting efficiencyhigh. And watch your footi...

11 5 Section Maintenance/Repairs NOTE: All references to left, right,front and rear of the machine aredetermined by standing behind thehandlebars and facing the directionof forward travel. Before inspecting, cleaning orservicing the machine, shut offengine, disconnect spark plugw i r e , a n d m a k...

14 Section 5: Maintenance/Repairs BELT PERFORMANCETROUBLESHOOTING Sub-par belt performance (noise, overheating, cracking, etc.), can becaused by several situations. Followthe steps below to correct belt perfor-mance problems. Also use thesechecks after installing a new belt. Aftershutting the engine...

15 Section 5: Maintenance/Repairs CHANGING TRIMMER/MOWER LINES Replace the trimmer lines when they wear to the point that trimming andmowing projects take too long and re-quire too much movement. A goodrule of thumb is to change the lineswhen they reach half their originallength. To Change Trimmer L...

16 CLEANING THE ENGINEFOAM DEBRIS FILTER It is extremely important to keep thefoam debris filter (A, Figure 5-14) freeof dirt and dust so the engine can runas efficiently and as cool as possible. Clean the foam debris filter every timeyou refuel (also remove all debris fromaround the fuel fill cap)....

18 Section 5: Maintenance/Repairs TROUBLESHOOTING Before performing any of the corrections in this Troubleshooting Chart, refer to the appropriate information contained in thisManual for the correct safety precautions and operating or maintenance procedures. Contact your local authorized EngineServi...

19 Parts Ordering Information If you need service or parts: For service assistance or parts, contact your local authorizeddealer or the factory. Your local dealer or the factory service department will needto know the model/serial numbers of the unit to provide themost efficient service. See the bac...

20 Trimmer/Mower Parts List ENGINE, DECK, COVERS AND GUARDS, BATTERY 1 3 12 23 22 32 28 28 25 25 33 35, 36 34 26 37 26 23 29 30 41 40 40 41 31 27 23 4 24 37 24 43 42 37 5 6 9 2 19 7 8 39 17 18 14, 38 15 13 16 20 21 37 31 22

22 Trimmer/Mower Parts List 1 10 19 22 23 24 25 19 5 12 14 14 17 20 13 4 7 7 2 9 HANDLEBAR ASSEMBLY

24 Trimmer/Mower Parts List 1 1910823 Wheel - 6 spoke ..................................... 2 2 1915823 Wheel Stud ............................................. 2 3 1915824 Wheel Mounting Bracket ........................ 2 5 1733398 Top Lock Nut, 3/8-16 ............................. 2 13 1744708 Hex...

CUSTOMER SERVICE INFORMATION Owner Registration Card Please fill out and mail the enclosed ownerregistration card. The purpose of this card isto register each unit at the factory in order tokeep the owner informed with informationalbulletins and safety literature. Warranty Service The warranty state...