Troy-Bilt Bronco Operation Manual - Page 18

Maintenance & Adjustments 6 Maintenance WARNING: Before performing any maintenance or repairs, disengage PTO, move shift lever into neutral position, set parking brake, stop engine and remove key to prevent unintended starting. Engine Refer to the Engine Operator/Owner Manual for engine maintenance instructions. Check engine oil level before each use as instructed in the Engine Operator/Owner Manual packed with your unit. Follow the instructions carefully. Changing Engine Oil For draining oil from the engine's crankcase, a plastic oil drain sleeve is packed with this Operator's Manual. To drain the oil, proceed as follows: 1. Run the engine for a few minutes to allow the oil in the crankcase to warm up. Warm oil will flow more freely and carry away more of the engine sediment which may have settled at the bottom of the crankcase. Use care to avoid burns from hot oil. 2. Open the tractor's hood and locate the oil drain port on the right side of the engine. 3. Pop open the protective cap on the end of the oil drain valve to expose the drain port. See Fig 6-1. 4. Remove the oil fill cap/ dipstick from the oil fill tube. 5. Push the oil drain hose (packed with this manual) onto the oil drain port. Route the opposite end of the hose into an appropriate oil collection container with at least a 2.5 quart capacity, to collect the used oil. 6. Rotate the drain valve counter-clockwise and release to drain the oil. See Fig 6-1. 7. After the oil has finished draining, push the end of the oil drain valve back in, until the tabs click into place. Re-cap the end of the oil drain valve to keep debris from entering the drain port. 8. Replace the oil filter as instructed in the separate engine Owner's Manual. 9. Refill the engine with new oil. Refer to the engine Owner's Manual for information regarding the proper volume and weight of engine oil. IMPORTANT: Refer to the Engine Operator/Owner Manual packed with your unit for information regarding the quantity and proper viscosity of motor oil. Air Cleaner Service the pre-cleaner and cartridge/air cleaner element as instructed in the Engine Operator/Owner Manual packed with your unit. Spark Plug The spark plug should be cleaned and the gap reset once a season. Spark plug replacement is recommended at the start of each mowing season. Refer to the Engine Operator/Owner Manual for correct plug type and gap specifications. Lubrication WARNING: Before lubricating, repairing, or inspecting, always disengage PTO, move shift lever into neutral position, set parking brake, stop engine and remove key to prevent unintended starting. Engine Lubricate the engine with motor oil as instructed in the Engine Owner Manual packed with your unit. Pivot Points & Linkage Lubricate all the pivot points on the drive system, parking brake and lift linkage at least once a season with light oil. Rear Wheels The rear wheels should be removed from the axles once a season. Lubricate the axles and the rims well with an all-purpose grease before re-installing them. Cleaning the Engine And Deck Figure 6-1 Any fuel or oil spilled on the machine should be wiped off promptly. Do NOT allow debris to accumulate around the cooling fins of the engine or on any other part of the machine. IMPORTANT: The use of a pressure washer to clean your tractor is NOT recommended. It may cause damage to electrical components, spindles, pulleys, bearings or the engine. 18