manitou mla 628 gears

[wind up]

well can anyone help , my manitou will not achieve forth gear -- first ,second ,third easy but it will not jump into forth oil levels etc seem ok , does anyone have any experience ? thankyou

 

[ACEngineering]

well can anyone help , my manitou will not achieve forth gear -- first ,second ,third easy but it will not jump into forth oil levels etc seem ok , does anyone have any experience ? thankyou

628 series 1,2 or 3?

Pm me your email can send you info.
Might be under reving
Speed sensor fault
Or solenoid failed
Or something up with the egs lever?
Theres self diagnostic on the egs lever but easier for me to just send you the files on email than explain it all here.

 

[Mikko]

I have the same problem with my Manitou mla. Could you advise me also where the problem is.

Thanks

 

[Timbo]

Does the egs show 4th on the leds when you select it ?

 

[Mikko]

No It doesn't light up.

Mikko

 

[Timbo]

Controller problem then?. But run the self test first, could be open circuit on the 4th solonoid.
The egs unit is mega dollars.

 

[Mikko]

How it happens? Thats quite a new machine for me.

Mikko

 

[Sam Smith]

Having problems with manitou mla 628 6 speed gear system will not pick up 3rd gear drives in 4th instead any ideas?

 

[18 wheeler]

had the same problem,
My one turned out to be the solenoid…..

 

[Timbo]

had the same problem,
My one turned out to be the solenoid…..

Having problems with manitou mla 628 6 speed gear system will not pick up 3rd gear drives in 4th instead any ideas?

Be one of the solonoids or wiring as above

 

[ACEngineering]

Having problems with manitou mla 628 6 speed gear system will not pick up 3rd gear drives in 4th instead any ideas?

6speed version were rare, i should have the solenoid sequence some where.

 

[ACEngineering]

Having problems with manitou mla 628 6 speed gear system will not pick up 3rd gear drives in 4th instead any ideas?

Solenoid B is top and D is bottom, use this to ID the solenoid or power supply that isn't working right, i say you must have 3rd gear cause solenoid A is used in all forward gears and solenoid E is used in the first 4 gears.

Its the same box for 4 and 6 speed, its only the control unit that selects different combinations of the 5 solenoids to give the gear ratios, so there are quite a few combos so not uncommon for one solenoid or power to fail and end up with a different gear radio that what the display has selected.

You can rule out speed sensor cause that wouldn't stop just one gear working.

Although there are 5 solenoids there are actually 6 clutches, not 100% which one of the solenoids does it but the 6th clutch is operated when certain solenoid/s are not powered up.

 

[ACEngineering]

Solenoid B is top and D is bottom, use this to ID the solenoid or power supply that isn't working right, i say you must have 3rd gear cause solenoid A is used in all forward gears and solenoid E is used in the first 4 gears.

Its the same box for 4 and 6 speed, its only the control unit that selects different combinations of the 5 solenoids to give the gear ratios, so there are quite a few combos so not uncommon for one solenoid or power to fail and end up with a different gear radio that what the display has selected.

You can rule out speed sensor cause that wouldn't stop just one gear working.

Although there are 5 solenoids there are actually 6 clutches, not 100% which one of the solenoids does it but the 6th clutch is operated when certain solenoid/s are not powered up.

Having problems with manitou mla 628 6 speed gear system will not pick up 3rd gear drives in 4th instead any ideas?

Actually i dont think that sequence is correct for the MLA?

this is the 4 speed sequence for the MLA (solenoids are labeled differently to fit drawings which came from @leone75 and are for cat TH62)

I honestly do not know or can not find the info from manitou for the 6 speed sequence doesn't seem to be any 6speed info available from manitou even though it was an option on the MLA 627 and early 628.

 

[18 wheeler]

Pretty sure the diagram you kindly sent me a few years ago (the one above) didn’t quite add up.

3rd gear solenoid is near the bottom and a single sequence so straight forward to work out which one by process of elimination.

 

[ACEngineering]

Pretty sure the diagram you kindly sent me a few years ago (the one above) didn’t quite add up.

3rd gear solenoid is near the bottom and a single sequence so straight forward to work out which one by process of elimination.

the one above is for all 4 speed MLA's, the only 6speed one i can find was for a cat TH62 which could well be different as the drive is taken off the back output shaft to a transfer box and then on to the axles so it might be working in reverse compared to the MLA?

 

[Chokess]

Im having problems with my mla 627 it wont go into 3rd of 4th gear any solutions also the front prop shaft seal is leaking in the transmissions is it much of a job to to replace