LTH120 Owner’s Manual 1
SAFETY RULES Safe Operation Practices for Ride-On Mowers IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS. FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH. I. GENERAL OPERATION • Read, understand, and follow all instructions in the manual and on the machine before starting. • Only allow responsible adults, who are familiar with the instructions, to operate the machine.
SAFETY RULES Safe Operation Practices for Ride-On Mowers • • • • • • • • • • • • • • • • Mower blades are sharp and can cut. Wrap the blade(s) or wear gloves, and use extra caution when servicing them. Check brake operation frequently. Adjust and service as required. Be sure the area is clear of other people before mowing. Stop machine if anyone enters the area. Never carry passengers or children even with the blades off. Do not mow in reverse unless absolutely necessary.
PRODUCT SPECIFICATIONS CONGRATULATIONS on your purchase of a new tractor. It has been designed, engineered and manufactured to give you the best possible dependability and performance. Should you experience any problem you cannot easily remedy, please contact your nearest authorized service center/department. We have competent, well-trained technicians and the proper tools to service or repair this unit. Please read and retain this manual.
UNASSEMBLED PARTS Steering Wheel Slope Sheet Steering Wheel Adapter Keys Steering Wheel Insert Steering Sleeve Steering Extension Shaft (2) Keys (1) Hex Bolt 3/8-16 x 1 Seat (1) Large Flat Washer (1) Washer 17/32 x 1-3/16 x 12 Gauge (1) Lock Washer 1/2 (1) Lock washer 3/8 (1) Hex Bolt 5/16-18 x 1-1/4 (1) Hex Bolt 1/2-13 x 1 (1) Locknut 5/16-18 5 (1) Shoulder Bolt 5/16-18
ASSEMBLY Your new tractor has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To ensure safe and proper operation of your tractor all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to insure proper tightness. STEERING WHEEL INSERT TOOLS REQUIRED FOR ASSEMBLY A socket wrench set will make assembly easier. Standard wrench sizes are listed.
ASSEMBLY • INSTALL SEAT (See Fig. 3) Adjust seat before tightening adjustment knob. • Remove adjustment bolt, lockwasher and flat washer securing seat to cardboard packing and set aside for assembly of seat to tractor. • Pivot seat upward and remove from the cardboard packing. Remove the carboard packing and discard. • Place seat on seat pan and assemble shoulder bolt. Tighten shoulder bolt securely. • Assemble adjustment bolt, lockwasher and flat washer loosely. Do not tighten.
ASSEMBLY 3CHECKLIST DEFLECTOR SHIELD BEFORE YOU OPERATE AND ENJOY YOUR NEW TRACTOR, WE WISH TO ASSURE THAT YOU RECEIVE THE BEST PERFORMANCE AND SATISFACTION FROM THIS QUALITY PRODUCT. PLEASE REVIEW THE FOLLOWING CHECKLIST: 3 All assembly instructions have been completed. 3 No remaining loose parts in carton. 3 Battery is properly prepared and charged. (Minimum 1 hour at 6 amps). 3 Seat is adjusted comfortably and tightened securely. 3 All tires are properly inflated.
OPERATION These symbols may appear on your tractor or in literature supplied with the product. Learn and understand their meaning.
OPERATION KNOW YOUR TRACTOR READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Compare the illustrations with your tractor to familiarize yourself with the locations of various controls and adjustments. Save this manual for future reference.
OPERATION The operation of any tractor can result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your tractor or performing any adjustments or repairs. We recommend a wide vision safety mask over spectacles or standard safety glasses. NOTE: Under certain conditions when tractor is standing idle with the engine running, hot engine exhaust gases may cause “browning” of grass.
OPERATION TO OPERATE MOWER (See Fig. 7) TO TRANSPORT (See Figs. 6 and 8) Your tractor is equipped with an operator presence sensing switch. Any attempt by the operator to leave the seat with the engine running and the attachment clutch engaged will shut off the engine. • Select desired height of cut. • Start mower blades by engaging attachment clutch control. • TO STOP MOWER BLADES - disengage attachment clutch control.
OPERATION COLD WEATHER STARTING ( 50° F and below) • When engine starts, allow engine to run with the throttle control in the choke position until the engine runs roughly, then move throttle control to fast position. This may require an engine warm-up period from several seconds to several minutes, depending on the temperature. ADD GASOLINE • Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane.
OPERATION NOTE: During this procedure there will be no movement of drive wheels. The air is being removed from hydraulic drive system. • Move motion control lever to neutral (N) position. Shutoff engine and set parking brake. • Engage transmission by placing freewheel control in driving position (See “TO TRANSPORT” in this section of manual). • Sitting in the tractor seat, start engine. After the engine is running, move throttle control to half (1/2) speed.
CUSTOMER RESPONSIBILITIES MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERVICE E S S GE RS US RS UR OUR OU SON ORA U O H O H H A 0 ST E 8H SE 25 50 10 Y RE Y Y Y Y RE R R R R R O O E E F E E E F SERVICE EV EV EV EV BE EV BE H AC DATES Check Brake Operation Check Tire Pressure T R A C T 0 R Check Operator Presence and Interlock Systems Check for Loose Fasteners 7 Sharpen/Replace Mower Blades 4 Lubrication Chart Check Battery Level 6 Clean Battery and Terminals Check Transaxle Cooling
CUSTOMER RESPONSIBILITIES TRACTOR IMPORTANT: TO ENSURE PROPER ASSEMBLY, CENTER HOLE IN BLADE MUST ALIGN WITH STAR ON MANDREL ASSEMBLY. Always observe safety rules when performing any maintenance. • BRAKE OPERATION If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. (See “TO ADJUST BRAKE” in the Service and Adjustments section of this manual). • IMPORTANT: BLADE BOLT IS GRADE 8 HEAT TREATED. TO SHARPEN BLADE (See Fig.
CUSTOMER RESPONSIBILITIES V-BELTS TO CHANGE ENGINE OIL (See Fig. 13) Determine temperature range expected before oil change. All oil must meet API service classification SF, SG or SH. • Be sure tractor is on level surface. • Oil will drain more freely when warm. • Catch oil in a suitable container. • Remove oil fill cap/dipstick. Be careful not to allow dirt to enter the engine when changing oil. • Remove drain plug. • After oil has drained completely, replace oil drain plug and tighten securely.
CUSTOMER RESPONSIBILITIES AIR FILTER (See Fig. 14) MUFFLER Your engine will not run properly using a dirty air filter. Clean the foam pre-cleaner after every 25 hours of operation or every season. Service paper cartridge every 100 hours of operation or every season, whichever occurs first. Service air cleaner more often under dusty conditions. • Remove knob(s) and cover. TO SERVICE PRE-CLEANER • Slide foam pre-cleaner off cartridge. • Wash it in liquid detergent and water.
SERVICE AND ADJUSTMENTS CAUTION: BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: • Depress clutch/brake pedal fully and set parking brake. • Place motion control lever in neutral (N) position. • Place attachment clutch in “DISENGAGED” position. • Turn ignition key “OFF” and remove key. • Make sure the blades and all moving parts have completely stopped. • Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. TO REMOVE MOWER (See Fig.
SERVICE AND ADJUSTMENTS TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 21) SUSPENSION ARM FIG. 18 FRONT-TO-BACK ADJUSTMENT (SEE FIGS. 23 AND 24) IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TOSIDE. To obtain the best cutting results, the mower housing should be adjusted so that the front is approximately 1/8" to 1/2" lower than the rear when the mower is in its highest position.
SERVICE AND ADJUSTMENTS TO REPLACE MOTION DRIVE BELT (See Fig. 23) • • Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest. • Remove mower (See “TO REMOVE MOWER” in this section of this manual.) • Remove belt from stationary idler and clutching idler. • Pull belt slack toward rear of tractor. Carefully remove belt upwards from transmission input pulley and over cooling fan blades.
SERVICE AND ADJUSTMENTS TO REMOVE WHEEL FOR REPAIRS (See Fig. 25) NEGATIVE TERMINAL POSITIVE TERMINAL • • Block up axle securely. Remove axle cover, retaining ring and washers to allow wheel removal (rear wheel contains a square key - Do not lose). • Repair tire and reassemble. • On rear wheels only: align grooves in rear wheel hub and axle. Insert square key. • Replace washers and snap retaining ring securely in axle groove. • Replace axle cover.
SERVICE AND ADJUSTMENTS ENGINE KEPS NUT TO ADJUST THROTTLE CONTROL CABLE (See Fig. 30) HEX BOLT POSITIVE (RED) CABLE The throttle control has been preset at the factory and adjustment should not be necessary. Check adjustment as described below before loosening cable. If adjustment is necessary, proceed as follows: • With engine not running, move throttle control lever from slow to choke position. Slowly move lever from choke to fast position.
STORAGE Immediately prepare your tractor for storage at the end of the season or if the tractor will not be used for 30 days or more. ENGINE FUEL SYSTEM CAUTION: Never store the tractor with gasoline in the tank inside a building where fumes may reach an open flame or spark. Allow the engine to cool before storing in any enclosure. IMPORTANT: IT IS IMPORTANT TO PREVENT GUM DEPOSITS FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH AS CARBURETOR, FUEL FILTER, FUEL HOSE, OR TANK DURING STORAGE.
TROUBLESHOOTING POINTS PROBLEM CAUSE Will not start 1. 2. 3. 4. 5. 6. 7. Out of fuel. Engine not “CHOKED” properly. Engine flooded. Bad spark plug. Dirty air filter. Dirty fuel filter. Water in fuel. 1. 2. 3. 4. 5. 6. 7. 8. 9. Loose or damaged wiring. Carburetor out of adjustment. 8. 9. 10. Hard to start CORRECTION Engine valves out of adjustment. 10. Fill fuel tank. See “TO START ENGINE” in Operation section. Wait several minutes before attempting to start. Replace spark plug.
TROUBLESHOOTING POINTS PROBLEM CAUSE CORRECTION Engine continues to run 1. when operator leaves seat with attachment clutch engaged Faulty operator-safety presence control system. 1. Check wiring, switches and connections. If not corrected, contact an authorized service center/ department. Poor cut - uneven 1. 2. 3. 4. 5. Worn, bent or loose blade. Mower deck not level. Buildup of grass, leaves, and trash under mower. Bent blade mandrel.
TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 SCHEMATIC RED BLACK BATTERY RED A RED FUSE AMMETER (OPTIONAL) M STARTER BLACK WHITE SOLENOID RED B S G BLACK L M CLUTCH / BRAKE (PEDAL UP) A1 A2 WHITE SEAT SWITCH (NOT OCCUPIED) IGNITION SWITCH WHITE BLACK BLACK BLACK BLACK HOUR METER ATT'MENT CLUTCH (CLUTCH OFF) GROUNDING CONNECTOR (OPTIONAL) BLUE SPARK PLUG GAP (2 PLUGS ON TWIN CYL.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 ELECTRICAL 21 22 42 24 41 70 43 27 27 40 26 20 20 25 16 16 33 30 52 D.C .
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 ELECTRICAL KEY NO. PART NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 CHASSIS AND ENCLOSURES KEY NO. PART NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 DRIVE KEY NO. PART NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 STEERING ASSEMBLY KEY NO. PART NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 SEAT ASSEMBLY 1 8 8 9 14 9 7 7 10 5 6 22 21 2 24 5 26 16 25 15 23 4 13 17 KEY PART NO. NO. 1 2 3 4 5 6 7 8 9 10 12 13 14 532140838 532140551 874760616 819131610 532145006 873800600 532124181 817060616 819131614 532155925 532121246 532121248 872050412 3 12 KEY PART NO. NO. DESCRIPTION Seat Bracket Pivot Seat 8 720 Bolt Fin Hex 3/8-16unc X 1 Washer 13/32 X 1 X 10 Ga Clip Push-In Nut Hex w/Ins.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 DECALS 3 4 10 9 20 1 8 5 6 14 KEY NO. PART NO. 1 3 4 5 6 8 9 10 14 20 532157032 532157193 532157195 532166100 532171458 532137259 532150617 532157140 532136832 532145005 DESCRIPTION KEY NO. Decal Oper.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 ENGINE KEY NO. PART NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 MOWER DECK KEY PART NO. NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO.
REPAIR PARTS TRACTOR - MODEL NO. LTH120 (954140106A), PRODUCT NO. 954 14 01-06 MOWER LIFT KEY NO. PART NO.
SERVICE NOTES 44
SERVICE NOTES 45
SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION SIGHTING GUIDE CUT OUT ON D THIS OTT IS A ED L 15° S INES LOP E ONLY RIDE UP AND DOWN HILL, NOT ACROSS HILL 46 SIGHT AND HOLD THIS LEVEL WITH SKY LINE OR TREE. 15° MAX. Operate your Tractor up and down the face of slopes (not greater than 15°), never across the face. Make turns gradually to prevent tipping or loss of control. Exercise extreme caution when changing direction on slopes.
WARRANTY STATEMENT SECTION 1: LIMITED WARRANTY Husqvarna Forest & Garden Company (“Husqvarna”) warrants Husqvarna product to the original purchaser to be free from defects in material and workmanship from the date of purchase for the “Warranty Period” of the product as set forth below: Lifetime Warranty: All tiller tines, trimmer shafts, ignition coils and modules on hand held product.
532171589 10.26.99 RD 48 Printed in U.S.A.
