Slew motor broken on crane.

[elfinwood saws]

We have an old LV Star timber crane and today the outputshaft snapped on the slew motor, it's a hydraulic motor with a slipper clutch and the output shaft has snapped just below the drive pinion, the motor has no name or numbers on it! WE can as a last resort have the shaft bored and tapped and a threaded insert made, screw the broken piece back on and weld round the join. I would really like to fit a new shaft or a complete new motor, i'l stick some photos up tomorrow. Anyone else had the same problem and how did you over come it? cheers Mark.

[elfinwood saws]

I do relise that the shaft broke because of the wear in the slew ring.

[rowan lee]

Sounds like more headache for you pal. But you seem to enjoy fixing stuff.

Hows the little forwarder project coming along?

[Breezeblock]

ive seen it before on scrap shears usually it just keeps breaking the motor bolts the slew ring must be really worn to break the shaft are you sure it isnt the crossover valve thats jammed shut

[elfinwood saws]

The slew ring is really worn, trying to find a new slew ring, the motor and shaft are been repaired by the local machine shop.

[elfinwood saws]

There are some more photos of the forwarder on another thread, Brunette photos, should be back together in a couple of weeks.

[elfinwood saws]

Got the slew motor shaft repaired, slew ring is and oddball, found a company in Italy but they have non in stock and won't be making any for 10 weeks, cost 1000 pounds! so dismantled the ring and it,s only the rollers that,s worn, so it will be getting rebuilt with new bearing rollers and jobs a good'un the LV Star will live again.

[Robert_S]

great to see you rebuilding that brunette mate. good on ya

[elfinwood saws]

The crane is all back together, it,s done a full shift today forwarding and worked perfect. I,m well happy.