I have a Bush Hog (tm) 502 I run with the 8N. Three years ago I replaced most of the steel decking, and while it was apart, serviced the gearbox. Installed a Speedi-Sleeve on the output shaft and installed new double seals (book calls for two). Also replaced the input shaft seal. No Speedi-Sleeve needed here. Adjusted gear lash per the instructions.
Installed Bush Hog (tm) recommended weight full synthetic lubricant. Have had NO leaks in over 100 hours of running, and even after a full day of mowing the pastures (at lease 8 hours), the gearbox doesn't get over 100*F.
I used to check the oil level every few hours of mowing, but I have since stopped doing it. Level is always at the same point, and doesn't leak. zuhnc
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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