Safety Instructions & Operator’s Manual for LAWN TRACTOR HYDROSTATIC DRIVE SERIES H MODELS HYDROSTATIC DRIVE LT145H33HBV LT145H38HBV LT150H38HKV WLT145H38HBV MODEL NUMBER EXPLANATION LT 145 H MODEL DESIGNATION ENGINE HP DRIVE SYSTEM TYPE CUTTING WIDTH LT/WLT – Lawn Tractor Model Designation 145 - 14.5 HP, 150 – 15.
IMPORTANT SAFETY INSTRUCTIONS WARNING: This powerful cutting machine is capable of amputating hands and feet and can throw objects that can cause injury and damage! Failure to comply with the following SAFETY instructions could result in serious injury or death to the operator or other persons. The owner of the machine must understand these instructions and must allow only persons who understand these instructions to operate machine.
IMPORTANT SAFETY INSTRUCTIONS PREPARATION OPERATION (Continued From Previous Page) 7. Keep people and pets out of mowing area. Immediately STOP blades, STOP engine, and STOP machine if anyone enters the area. 8. Check shields, deflectors, switches, blade controls and other safety devices frequently for proper operation and location. 9. Make sure all safety decals are clearly legible. Replace if damaged. 10. Protect yourself when mowing and wear safety glasses, long pants and substantial footwear. 11.
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS .......... 2 - 3 SECTION 4 ADJUSTMENTS & REPAIR........................... 17-32 TABLE OF CONTENTS ........................................ 4 Engine Adjustments & Repair ..........................17 Mower Deck & Component Adjustments ........17 Blade Brake Adjustment ...................................17 33” Deck Blade Brake Adjustment ...............17 38” Deck Blade Brake Adjustment ...............17 Blade Belt Adjustment (33” Deck) ...................
Section 1 - FAMILIARIZATION CONTROL PANEL PARK BRAKE LEVER CHOKE FAST SLOW CLUTCH/BRAKE PEDAL DOWN KEY CUTTING HEIGHT ADJUSTMENT LEVER ENGINE SPEED CONTROL OPERATOR’S SEAT SEAT ADJUSTMENT KNOB STEERING WHEEL DASHBOARD CONTROLS SPEED CONTROL LEVER FUEL TANK (UNDER HOOD) BATTERY (UNDER SEAT) HOOD OVERRIDE LEVER BLADE ENGAGEMENT LEVER HEADLIGHTS DISCHARGE DEFLECTOR MOWING DECK (33” SHOWN) ENGINE FIGURE 1.
Section 2 - OPERATING INSTRUCTIONS 2.1 PRE-START CHECKLIST Make the following checks and perform service as required before each start-up. 2.1.1. Check tires and add air as needed to bring pressure to 12 P.S.I. in front tires and 12 P.S.I. in rear tires. FUEL TANK 2.1.2. Check guards, deflectors and covers to make sure all are in place and securely tightened. If guards are missing or damaged, replace BEFORE using mower. TIGHTEN CAP AFTER FILLING TANK 2.1.3.
Section 2 - OPERATING INSTRUCTIONS 2.3 STARTING & OPERATION 2.3.1. STARTING ENGINE 1. Take a comfortable position in seat of machine, look around to make sure that the area you are going to mow is clear of people, children and pets. Take note of any stationary obstacles! 5. Choke engine for cold starting by moving engine speed control to "CHOKE" position. Little or no choking will be needed when restarting a warm engine. Insert key in switch.
Section 2 - OPERATING INSTRUCTIONS 2.3 STARTING & OPERATION (continued) 2.3.2. STARTING WHEEL DRIVE 1. Shift speed control lever to neutral. 2. Start engine. Refer to Section “STARTING ENGINE”. 3. Release clutch/brake pedal. 4. Slowly shift speed control lever forward for forward motion or to the rear for reverse motion. See Figure 2.7. 2.4 STOPPING ENGINE, BLADE, & WHEEL DRIVE 2.4.1. STOPPING ENGINE 1. Stop engine by turning key to the "OFF" position. See Figure 2.9.
Section 2 - OPERATING INSTRUCTIONS 2.4.5. RELEASING PARK BRAKE 1. Fully depress clutch/brake pedal. Move park brake lever “DOWN” to release park brake. Release clutch/brake pedal. See Figure 2.13. 2.4 STOPPING 2.4.3. STOPPING MOWER BLADE 1. Stop mower blade by moving blade engagement lever down to the "OFF" position. See Figure 2.11. PARK BRAKE LEVER CLUTCH/BRAKE PEDAL BLADE ENGAGEMENT LEVER OFF FULLY DEPRESS CLUTCH/BRAKE PEDAL FIGURE 2.11 WARNING FIGURE 2.
Section 2 - OPERATING INSTRUCTIONS 2.6. ROLLING TRACTOR WITH ENGINE OFF 2.6.1. Rolling Hydro Models 1. With engine "OFF", move to rear of tractor. 2. Pull the roll release control all the way out to disengage the hydro transmission. See Figure 2.15. WARNING PULL ROLL RELEASE CONTROL ALL THE WAY OUT TO DISENGAGE HYDRO TRANSMISSION DO NOT disengage the hydro transmission and coast down slopes.
Section 2 - OPERATING INSTRUCTIONS 2.7.1. 1. 2. 3. 4. 2.7. REVERSE LOCKOUT MECHANISM Data indicates that tragic back-over accidents occur each year. These accidents usually involve unsupervised children. Many times these children have been given rides on the machine and have been trained to view this potentially dangerous piece of machinery as fun rather than being taught how to avoid danger. Reverse Lockout Mechanism Override Stop machine. Stop blades. Depress and hold Override Lever.
Section 3 - MAINTENANCE 3.1 INTRODUCTION To retain the quality of the Tractor, use genuine SNAPPER replacement parts only. Contact a local SNAPPER dealer for parts and service assistance. For the correct part or information for a particular Tractor, always mention the model and serial number. SNAPPER recommends returning the Tractor to an authorized SNAPPER dealer annually for inspection and addition of any new devices, which might upgrade the safety of the Tractor.
Section 3 - MAINTENANCE 3.2.3. CHECK MOWER BLADE (Continued) 3.3 SERVICE - EVERY 25 OPERATING HOURS 3.3.1. CHECK ENGINE 1. Change engine oil. Refer to Section “CHANGE ENGINE OIL”. Refer to engine owner's manual for oil specification. 2. Remove and clean engine air pre-cleaner. See Figure 3.5. Refer to engine owner's manual for cleaning instructions. ENGINE AIR CLEANER TORQUE 38” BLADES TO 70 TO 80 FT. LBS. FIGURE 3.3 3.2.4. CHECK 33" DECK DRIVE BELT 1.
Section 3 - MAINTENANCE 4. Steering Sector Gear Lubricate with a light coat of general purpose grease. See Figure 3.8. 3.3.4. TRACTOR LUBRICATION 1. Front Wheel Bearings Lubricate each front wheel bearing through the grease fitting on wheel hub. Using general purpose grease in a grease gun, add grease until grease purges from bearing. See Figure 3.6. FUEL TANK STEERING SECTOR AXLE SPINDLE LUBRICATION FITTING SECTOR GEAR FRONT WHEEL BEARING LUBRICATION FITTING FIGURE 3.6 FIGURE 3.8 2.
Section 3 - MAINTENANCE 3.3.4. TRACTOR LUBRICATION (Continued From Previous Page) 7. Steering Tie Rod Lubricate both ends of steering tie rod with a small amount of SAE30 oil. See Figure 3.10. PARK BRAKE LEVER LUBRICATE COMPONENTS ON UNDERSIDE OF TRACTOR LUBRICATE BOTH ENDS OF TIE ROD FIGURE 3.12 10. Deck Lift Mechanism Lubricate all wear and pivot points of the deck lift 3.4 SERVICE - ANNUALLY Perform all maintenance as described in Section “SERVICE - EVERY 25 OPERATING HOURS”.
Section 3 - MAINTENANCE 3.4 SERVICE - ANNUALLY 3.4.2. FUEL FILTER (Continued From Previous Page) 3. Install new fuel filter part number 1-4359. See Figure 3.14. NEW FUEL FILTER PART NUMBER 1-4359 FIGURE 3.14 4. Fill fuel tank with fresh gasoline. Refer to engine owner's manual for fuel specifications. 3.4.3. SPARK PLUG Remove and replace engine spark plug. Refer to engine owner's manual for correct replacement plug and gap specifications. 3.4.4.
Section 4 - ADJUSTMENT & REPAIR WARNING DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. 4.1 ENGINE ADJUSTMENTS & REPAIR Refer to the engine owner's manual for those adjustments and/or repairs that can be made by the owner.
Section 4 - ADJUSTMENT & REPAIR 8. (33" Deck) To adjust tension, remove extension rod mounting bolt and nut. See Figure 4.4. 9. Move extension rod to next hole towards rear of deck and secure with mounting bolt and nut. 10. Measure extension spring with blade engagement lever in the "ON" and "OFF" positions. See Figure 4.3. Continue adjustment until tension is correct. WARNING DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake.
Section 4 - ADJUSTMENT & REPAIR 4.2.4. ADJUSTING MOWER BLADE – 33” DECK (Continued from previous page) 4.2.5. 33" DECK LEVEL ADJUSTMENT (SIDE TO SIDE) NOTE: Adjust tire pressure, 12 P.S.I. front and rear, before adjusting deck. 1. Move tractor to a firm, level surface. 2. Turn engine "OFF". Remove key. 3. Place a piece of angle iron under center rear of deck. 4. Remove hair pins and washers securing rear of deck to sector plates. See Figure 4.7. 5.
Section 4 - ADJUSTMENT & REPAIR WARNING 33” DECK SHOWN DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. 4.2.5. REAR FRONT X + 1/4” MEASURE FROM BLADE TIPS TO FLOOR FIGURE 4.
Section 4 - ADJUSTMENT & REPAIR WARNING 38” DECK DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. 4.2.8.
Section 4 - ADJUSTMENT & REPAIR WARNING REAR TO FRONT VIEW OF DECK DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. X - 1/8” X ANGLE IRON 4.2.9. 38" DECK LEVEL ADJUSTMENT (FRONT TO REAR) 1. Position the blades as shown.
Section 4 - ADJUSTMENT & REPAIR 4. Turn the neutral adjustment nut 1/4 turn clockwise to reduce FORWARD creep. Turn the adjustment nut 1/4 turn counter clockwise to reduce Reverse creep. Only turn the adjustment nut in 1/4 turn increments. 5. Check for creep in neutral. Start engine. Move speed control lever to rear edge of the neutral detent. Machine should not move. If further adjustment is required, stop engine and repeat Step 4.
Section 4 - ADJUSTMENT & REPAIR 4.3.4. TRACTION DRIVE BELT ADJUSTMENT Should a gradual loss of traction be noticed, it may be necessary to adjust the traction drive belt tension. Adjust as follows: 1. Move tractor to a firm, level surface. 2. Turn engine "OFF". Remove key. 3. Remove mowing deck. 4. Remove the traction drive belt stationary idler mounting bolt. See Figure 4.21. 5. Move the stationary idler one hole towards left side of tractor for more belt tension.
Section 4 - ADJUSTMENT & REPAIR 4.4.3. (STANDARD) BLADE SHARPENING Blades should be kept sharp at all times. When the blades are dull, cut grass will be ragged and lawn will usually turn brown. Sharpen standard blades as follows: 1. Move tractor to a firm, level surface. 2. Turn engine "OFF". Remove key. 3. Remove mowing deck from tractor. 4. Remove mower blade(s). 5. If a blade is in good condition, sharpen cutting edge at an angle of 22 to 28 degrees. DO NOT sharpen beyond existing cutting edge.
Section 4 - ADJUSTMENT & REPAIR WARNING SPINDLE ASSEMBLY DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. Wear heavy leather gloves when handling or working around cutting blades.
Section 4 - ADJUSTMENT & REPAIR WARNING 30” & 33” BELT GUIDES SHOWN DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool. 4.4.7. TRACTION DRIVE BELT REPLACEMENT Mower Deck Removal (Continued from previous page) 5.
Section 4 - ADJUSTMENT & REPAIR Traction drive belt replacement 1. Place new traction drive belt over transmission pulley and span to engine pulley. 2. Place belt into top groove of engine pulley. 3. Route belt through stationary and tension idlers. See Figure 4.36. WARNING DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug.
Section 4 - ADJUSTMENT & REPAIR 38" Deck Drive Belt 1. Place tractor on a firm level surface. 2. Turn engine "OFF". Remove key. 3. Remove mower deck. 4. Remove spindle belt guard and tension idler. See Figure 4.39. WARNING DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot.
Section 4 - ADJUSTMENT & REPAIR 4.5 BATTERY 4.5.1. BATTERY REMOVAL 1. Raise operator's seat. 2. Remove the two adjusting knobs. 3. Remove seat assembly and move forward. Use care not to disconnect wires from seat switch. See Figure 4.41. 4.5.2. BATTERY INSTALLATION 1. Slide battery into battery housing. 2. Connect positive (+) cable first. 3. Connect negative (-) cable last. 4. Reinstall seat assembly. Use care not to disconnect wires from seat switch. 5. Reinstall the two adjusting knobs. 6.
Section 4 - ADJUSTMENT & REPAIR 4. With cell caps removed, connect battery charger to battery terminals; RED to positive (+) and BLACK to negative (-) terminal. WARNING DO NOT OVERFILL! DO NOT attempt to service or charge the battery while it is installed on the machine. DO NOT use “BOOST” chargers on the battery. IMPORTANT: 3/16” above cell plates is the recommended level. However do not try to measure this dimension. Never place anything in battery other than specified electrolyte. 4.5.5.
Section 4 - ADJUSTMENT & REPAIR AVAILABLE ACCESSORIES The SNAPPER Series H LAWN TRACTOR can be equipped with a variety of accessories that increase its versatility. The accessories available for each model are listed in the chart below. Contact an authorized SNAPPER dealer for ordering any of the accessories desired.
SECTION 5 - ELECTRICAL SYSTEM SCHEMATIC – WIRING HARNESS P.N. 2-6616 LT145H33HBV & LT145H38HBV SCHEMATIC – WIRING HARNESS P.N.
TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Starter Will Not Crank Engine 1. Battery dead. 2. Blown fuse. 3. Electrical connections loose or corroded. 4. Defective ignition switch. 5. Starter Spins without engaging. Engine Will Not Start 1. Blade engagement switch in the “ON” position. 2. Park brake not set. 3. Fuel tank empty. 4. Engine needs choking. 5. Spark plug wire disconnected. 6. Battery weak or dead. 7. Faulty interlock switch. 1. Operator not in seat. 2.
TROUBLESHOOTING GUIDE (Continued From Previous Page) PROBLEM Tractor Will Not Move Or Loss Of Traction Blade(s) Not Turning Cutting Grass Improperly Poor Grass Discharge Battery Will Not Charge Oil Leaking From Transmission PROBABLE CAUSE CORRECTIVE ACTION 1. Speed control handle in the neutral “N” position. 1. Place speed control in desired speed. 2. Roll release control in “ROLL” position. 2. Move roll release control to the engaged position. 3. Bring oil to proper level. 4. Adjust shifter. 5.
MAINTENANCE SCHEDULE SUBJECT EACH USE 5 HOURS 25 HOURS Engine SERVICE TO BE PERFORMED Check Oil Level REFERENCE PAGES Page 6 Engine Initial Oil Change Page 12 Engine Periodic Oil Change Page 13 Air Pre-Cleaner Service Sponge PreCleaner Element Engine Manual X** Air Cleaner Replace Element X** Spark Plug Replace Plugs Fuel Filter Replace Filter Engine Manual.
3 YEAR LIMITED WARRANTY For three (3) years from purchase date for the original purchaser's residential, non-commercial use, SNAPPER, through any authorized SNAPPER dealer will replace, free of charge (except for taxes where applicable), any part or parts found upon examination by the factory at McDonough, Georgia, to be defective in material or workmanship or both.
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Safety Instructions & Operator’s Manual for LAWN TRACTOR HYDROSTATIC DRIVE SERIES H IMPORTANT Snapper products are built using engines that meet or exceed all applicable emissions requirements on the date manufactured. The labels on those engines contain very important emissions information and critical safety warnings. Read, Understand, and Follow all warnings and instructions in this manual, the engine manual, and on the machine, engine and attachments.
