Manitou 629-20 no drive

GTB · Apr 26, 2017

2015 machine here with no drive. The handbrake light doesn't go off and therefore it will not engage drive.

Any suggestions please? I know you could bypass the switch on older models but not sure what to do on this one.

Thanks

ACEngineering · Apr 26, 2017

GTB said:
2015 machine here with no drive. The handbrake light doesn't go off and therefore it will not engage drive.

Any suggestions please? I know you could bypass the switch on older models but not sure what to do on this one.

Thanks

It'll be the handbrake switch or adjustment i expect. It'll have 4 wires in it. 2 pairs do the warning light and the other 2 disconnect the drive unless they changed them but doubt it still same transmission as the 627 etc.
Or it could be seat pad disconnect switch but that normally sounds a buzzer and dont think it puts handbrake light on.

Next to brake fluid pot will be a unit with relay and buzzer built in to it thats the transmission control unit. Had the pins of the muilt plug burn out on one once would be an easy thing to check.

GTB · Apr 26, 2017

Thanks @ACEngineering

BK741 · Apr 26, 2017

The 629 wont have the electronic relay behind the brake res, the trans cut off is controlled by the spu controller. This will be the same on MT and MLT with en1500 hydraulics. ACE is right probably the handbrake switch, out of adjustment or cable pin moved or snapped.

GTB · Apr 26, 2017

Sorted now thanks. It was a loose linkage pin on the handbrake. Its the one that activates the switch.

BK741 · Apr 26, 2017

Good news. Done a few like that the last couple of weeks.

ACEngineering · Apr 26, 2017

GTB said:
Sorted now thanks. It was a loose linkage pin on the handbrake. Its the one that activates the switch.

Manitou never adjust the handbrake right or dealers on PDI.

Assuming you got the handbrake in the axle with the levers on top still? slacken the handbrake handle off, adjust the slack on the cable at the axle end so the levers are just clear of the stop bolts but only just or brakes may bind when hot. Adjust the handbrake lever in cab as required.
If the levers on the axle are just clear of the stops it puts tension on the cable and pulls the handbrake lever in the cab down tight on to the disconnect switch.

Same applies to the side engine manitous with handbrake on the transmission, adjust handbrake so the lever is just clear of the stop bolt.

Lazy Eric · Apr 26, 2017

GTB said:
Sorted now thanks. It was a loose linkage pin on the handbrake. Its the one that activates the switch.

Was it the spilt pin that had sheared , letting the main pin slip across thus missing the switch?
Mines always doing it.

mo! · Apr 26, 2017

ACEngineering said:
Manitou never adjust the handbrake right or dealers on PDI.

Assuming you got the handbrake in the axle with the levers on top still? slacken the handbrake handle off, adjust the slack on the cable at the axle end so the levers are just clear of the stop bolts but only just or brakes may bind when hot. Adjust the handbrake lever in cab as required.
If the levers on the axle are just clear of the stops it puts tension on the cable and pulls the handbrake lever in the cab down tight on to the disconnect switch.

Same applies to the side engine manitous with handbrake on the transmission, adjust handbrake so the lever is just clear of the stop bolt.

I had to do this recently when the handbrake lever adjuster ran out of adjustment. The lever on the right hand of the axle was very stiff with half the movement of the left. I gave it some lube and worked it back and forth for a bit. Any tips?

GTB · Apr 27, 2017

Lazy Eric said:
Was it the spilt pin that had sheared , letting the main pin slip across thus missing the switch?
Mines always doing it.

Yes it was. My son knew about the problem but hadn't got round to sorting it. Pity he hadn't thought to tell me.

Mickstup · May 16, 2017

Friend is using a 51 plate manitou that has lost forwsrd and reverse drive, how do you get to the handbrake switch and split pin mentioned above, I haven't had a good look at it yet, cheers.

ACEngineering · May 16, 2017

Mickstup said:
Friend is using a 51 plate manitou that has lost forwsrd and reverse drive, how do you get to the handbrake switch and split pin mentioned above, I haven't had a good look at it yet, cheers.

Depends on the model

often a cover over the lever, remove it then either 2 bolts holding the lever in and disconnect the cable to take the whole lot out or some screws on another cover that the lever and cable are fixed to again remove the whole thing. a lot easier than trying to work from underneath.

of cause it may not even be that at fault but its a good place to start at the switch

Mickstup · May 16, 2017

Thanks for that, about to go and have a look see, will report back.

Bevelgear · Mar 2, 2024

BK741 said:
The 629 wont have the electronic relay behind the brake res, the trans cut off is controlled by the spu controller. This will be the same on MT and MLT with en1500 hydraulics. ACE is right probably the handbrake switch, out of adjustment or cable pin moved or snapped.

Very helpful thanks

Manitou 629-20 no drive

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