The woodruff key had to be removed in order for the seal to slide by and that took a bit of cajoling. A little pull with only hand torque on a puller and the blade hub was removed. The blade hub has one lock screw and (fortunately) the shaft has a recess - none of that dreaded upset condition on the shaft. Got the fuel drained out and stood the trowel on a small work table and lashed it to the wall shelving.
Here is an update to the walk behind trowel. Or a slide hammer and some form of seal removal screw attachment to a slide hammer? Or get the one with the pivot bar that is made for seals on shafts? But better to keep dirt and debris from the seal removal from falling inside, maybe just turn the trowel on edge and conjure something (unistrut, plywood triangle, clamp to bench, etc etc) to facilitate that position.either way, working from underneath isnt going to be fun. Was thinking to use the storage stand and perhaps it will hold the trowel upside down (once I remove the handle). Wonder why it went out but have to change it 'cause the one drip a month has changed to a little puddle in a couple weeks.Īm thinking to remove the gasoline and the oil from the Honda engine and then invert the machine to allow access from the above. Machine is pretty clean from abusive concrete and looking at the seal and the manual, looks like the typical grease seal.īearing shows no play. The gearbox takes the horizontal shaft from the motor and via a worm gear arrangement, turns the vertical output shaft.
Said trowel is a MQ Whiteman 36" four blade. Was curious if any has experience changing the oil seal on the gearbox output shaft on a walk behind concrete trowel?