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If the fasteners are tight, a new gasket or oil seal may be required. If the leak is from around a shaft and oil seal, the oil seal probably needs to be replaced. See your authorized dealer or contact the factory for service or advice. IMPORTANT: Never operate the tiller if the transmission is low on oil. Check the oil level after every 30 hours of operation and whenever there is any oil leakage. CHECK HARDWARE At least every 10 operating hours, check the unit for loose or missing hardware (screws, bolts, nuts, hairpin cotters, etc.). Loose or missing hardware can lead to equipment failure, poor performance, or oil leaks. Be sure to check the three end cap mounting screws located at the rear of the transmission (Figure 5-3). Lift the tine flap to service those screws. 25 Section 5: Maintenance A WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all parts to come to a f ^ complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on elec-trie start models. Failure to follow these instructions can result in serious personal injury or I~1 property damage. TRANSMISSION GEAR OIL SERVICE Check the transmission gear oil level after every 30 hours of operation or whenever you notice any oil leak. Operating the tiller when the transmission is low on oil can result in severe damage. A. To Check Transmission Gear Oil Level: 1. Check the gear oil level when the transmission is cool. Gear oil will expand in warm operating temperatures and this expansion will provide an incorrect oil level reading. 2. To check the gear oil level (and to add oil, if necessary), refer to “STEP 5: Check Gear Oil Level in Transmission” in Section 2 of this manual. B. To Drain and Refill the Transmission: The transmission gear oil does not need to be changed unless it has been contaminated with dirt, sand or metal particles. 1. Prop up the left side of the unit so that it will be securely supported when the left side wheel is removed. Remove the left side wheel by removing the wheel pin. 2. Unscrew the plastic gear oil fill plug from the top of the transmission. 3. Place a clean pan below the transmission drain plug (see Figure 5-4) and remove the drain plug. The oil will start flowing out of the drain hole (it may flow slowly, especially in cold temperatures). 4. Remove the transmission gear oil level check plug that is located a few inches above the left side wheel shaft. 5. When the oil stops flowing, tilt the transmission forward to drain oil from the rear of the transmission. 6. After draining the oil, clean the threads of the drain plug, apply a non-hardening, removable gasket sealant to the threads, and securely reinstall the drain plug. 7. Using a clean funnel, slowly add SAE 140 or SAE 85W-140 weight gear oil (with an API rating of GL-4 only) to the transmission. The transmission holds approximately 3-1/4 pints (52-54 ounces). Tilt the tiller slightly backwards to make sure the gear oil reaches the rear (tine) end of the transmission. Stop adding gear oil when it begins to flow from the oil level check hole on the side of the transmission. 8. Securely reinstall the oil level check plug. 9. Securely reinstall the gear oil fill plug on top of the transmission. 10. Remove the prop and reinstall the wheel. Figure 5-4: Remove drain plug to drain transmission gear oil (also remove oil fill plug and oil level check plug). ENGINE OIL SERVICE Check the engine oil level before starting the engine each day and check it after each 5 hours of continuous operation. Running the engine when it is low on oil will quickly ruin the engine. It is recommended that you change the motor oil after every 10 hours of operation and even sooner when operating in extremely dirty or dusty conditions. A. To Check the Engine Oil Level: 1. Move the tiller to a level area and shut off the engine. 2. Level the engine by putting the Depth Regulator Lever in the second notch from the top. 3. Clean the area around the oil dipstick or oil fill tube to prevent dirt from falling into the crankcase. 4. On engines with an oil fill tube, remove the filler cap, add oil (if required) until it reaches the top of the tube and reinstall the filler cap. 5. On engines with a dipstick, remove it, wipe it clean, and reinstall it finger-tight. Remove the dipstick and check the reading. Add oil (if required) to bring the level to the FULL mark. Do not overfill. B. To Change the Engine Oil: Change the engine oil as instructed in the separate Engine Owner’s Manual. AIR CLEANER SERVICE The engine air cleaner filters dirt and dust out of the air before it enters the carburetor. Operating the engine with a dirty, clogged air filter can cause poor performance and damage to the engine. Never operate the engine without the air cleaner installed. Inspect and service the air cleaner more often if operating in very dusty or dirty conditions. Service the air cleaner as instructed in the...

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