Manitou 627 mlt bucket tilting under load
- Thread starter rob762
- Start date
ACEngineering
Member
- Location
- Oxon
Umm, sounds like you have a late model with elecy joystick? got a serial number? could be a joystick issue or a solenoid issue, something is not letting the tilt spool return to neutral when running.
ACEngineering
Member
- Location
- Oxon
Not sure if the serial number off the top of my head will need to check but it’s an 09 plate
ACEngineering
Member
- Location
- Oxon
ACEngineering
Member
- Location
- Oxon
ACEngineering
Member
- Location
- Oxon
TBH on this one it may not be a spool block, the key here is the fault stops with engine off, but that could be just because the lock out valve on the tilt ram is doing its job. its either the spool not centring due to wrong signals or a crack in the spool block which I have had before which does result in a new block.
ACEngineering
Member
- Location
- Oxon
also need to know if its 4 bank or 5 bank spool block, ie has it or did it ever have a PUH on it.
Serial number: 264295Oh not a late one then but an inbetweenerdefiantly need a serial number!
ACEngineering
Member
- Location
- Oxon
Spool block should look like this. 4 bank, this is good because you only have elecy for the AUX and the Extension, lift and tilt are old school pilot control from joystick base.
So your tilt circuit is on ports EI or second spool in from the inlet pressure pipe.
Remove the 2 small pilot pressure pipes from the ends of the tilt spool rod, start the machine, charge the joystick pilot circuit by turning the steering but don't touch the joystick. no oil should leak out of the pipes or the connections on the end of the spool.
If no leaks then its save to say the spool is in neutral (but you could pull it out and check the springs on each end if you wanted?) other wise its looking like a cracked block
I was expecting a later machine with full electric joystick which opens a whole new can of worms but this is quite an easy one
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ACEngineering
Member
- Location
- Oxon
PM sent with price of block.
For others reading, the OP has a 4 bank spool block fitted but oddly a 5 blank spool block is £30 cheaper to buy than the 4 bank
miniconnect
Member
- Location
- Argyll
Does the bucket tilt at all when you pressurize boom in or our, or use the lift functions? Ours had cracked the block internally doing much the same as yours.
ACE sorted us out. [emoji106]
ACE sorted us out. [emoji106]