pm 66 takes both hands adjust blade

[Mike Hedges]

Have a PM 66 , about 5 years old. I have blown out dust with air compressor and used small brushs to clean and have oiled. It takes both hands to raise blade and change angle . Any suggestions

[Scott Haddix]

Starting with the most basic possibility, can you confirm you have adequately loosened the lock knob at the center of the front handwheel that you use to lock the blade in place?

[Mike Hedges]

yes the nut is loose

[Ted Shrader]

Mike -

This happens to mine occasionally. You said you cleaned the elevation/tilt gear teeth. Did you put some wax on them, too?

Next put some Boeshield T9 in the bushings where the elevation/tilt shafts ride. Then squirt some in the trunnion pivots where it goes up/down and tilts. You wil have to put one of those squirt straws in the spray nozzle. Work the mechanisms as you are adding the lube and it will free up. Then add a light coat of wax to the ways where the trunnion tilts.

Good luck,
Ted

[Dewey Torres]

Mike -

This happens to mine occasionally. You said you cleaned the elevation/tilt gear teeth. Did you put some wax on them, too?

Next put some Boeshield T9 in the bushings where the elevation/tilt shafts ride. Then squirt some in the trunnion pivots where it goes up/down and tilts. You wil have to put one of those squirt straws in the spray nozzle. Work the mechanisms as you are adding the lube and it will free up. Then add a light coat of wax to the ways where the trunnion tilts.

Good luck,
Ted


Ted,
This is something I can use. My UNI has not yet required maintenance like this but I will keep this in mind... Thanks!

[Mike Hedges]

Ted , thanks for the info, will try and get back to you

[Karl Brogger]

-Back off the rack gear a bit. They are always too tight. The front one for angle is pretty easy to get too.

-Lube the pinion and the rack with grease. Don't bother with dry lube, wd40 etc. Same with the curved tracks for the tilt. The up + down pivots on a pin, and with out disassembly can't really be lubed effectively. I've kicked around taking this apart and adding a grease zerk.

Yes, dust will stick to the grease, but it also stays put for quite a while. It came from the factory that way.