JS145 noisy slew

Derrick Hughes

Member
Location
Ceredigion
Had a noise in the slew for a while now just when it stops , not when it's turning , like a break binding noise , I've greased the lot many times including the one under the sump guard , could it be an oil valve that's doing it , no play at all in the slew ring and turns free , just a deep hum when it stops
 

Zetor

Member
Location
Northumberland
Likely a sensor, slew brake will be dragging, had this on both my JS’s
don’t recommend using it until fixed.
Brake is a 2 stage system controlled by sensor usually located in a small valve block behind the cab, sure we just unplugged it to diagnose it, what age is it?
 

Derrick Hughes

Member
Location
Ceredigion
Neither of mine are as new as that but I suspect it’ll be a similar system
IMG_20211117_101816629.jpg
am I right in thinking it can't be the slew bearing as it only does it as it stops , or not ?
 

Zetor

Member
Location
Northumberland
Not that block, could be the on on the right, worth checking the sensor first, mine only made a noise on the slow down,
If it’s not the sensor then it’s a strip down probably in the planetary,
 

ollievaltra

Member
Livestock Farmer
Location
Central Scotland
I've had an older js130 on hire and it started groaning when slowing down after slewing, It was a few years ago now but sure it was a solinoid in the back right of the machine somewhere.
 
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