New 147 updates & electric lift woes

[aprophet2]

My son and I have been having a lot of fun with the 147 we picked up a few months ago. Since my last post we bolted on a new seat, restored the rims, and added new rubber all around. Only 1 out of 4 original tires had a slow leak. I am amazed at the quality of those 50 year old OEM Goodyear tires but they owed us nothing and were deeply cracked in spite of the fact that they still held air, so they've been put out to pasture. On top of all that a lot of scrubbing and degreasing and the old machine really doesn't look too bad. The electric lift works consistently and through its full stroke but when we bolted on the plow last weekend we realized that the lift is really weak. In other words it won't lift the plow completely unless you help it. Does anybody know if this could be low voltage from the starter/gen or if its just worn out? How serviceable are these electric lifts? My search of the forums seem to indicate that there is no direct or obvious aftermarket replacement and my search of google shows that OEM units remaining in the wild are very expensive. Any advice or direction on this lift is appreciated. We're kind of stuck at this point since we bought the tractor in hopes of using it this winter as a plow rig. Thanks!