Tw230 diesel Timberwolf Ford chipper 2017 were is the speed sensor no images any were on the internet

[John sue]

hi everybody I have a 2017 diesel Timberwolf to For Chipper I cannot for the life of me find the speed sensor where is it? Please put a picture on here. I cannot find a picture on Google on images on the full entire Internet no one seems to have one.

[s o c]

I think stress control works of alternator. Rarely gives trouble.

[htb]

It does run off alternator on the late 150

[Tree monkey 1682]

12 hours ago, John sue said:

hi everybody I have a 2017 diesel Timberwolf to For Chipper I cannot for the life of me find the speed sensor where is it? Please put a picture on here. I cannot find a picture on Google on images on the full entire Internet no one seems to have one.

Speak to timberwolf / entec uk for exploded diagrams 

[Mick Dempsey]

Just had a look at mine and buggered if I can find it!

[openspaceman]

9 minutes ago, Mick Dempsey said:

Just had a look at mine and buggered if I can find it!

The W terminal ( I think) on the alternator sends a stream of pulses to the control box, because the size of the pulleys are known the relationship of the rate of pulses to the rpm of the flywheel is fixed and the control box can stop (and slightly reverse??) the feed if the flywheel slows.

 

RDS used to make a box that cut the fuel to the injector pump if the engine overheated or lost oil pressure, is this included in modern ECUs @Jase hutch?

[Jase hutch]

Yes , also if the alternator wasn't changing. 

[John sue]

On 29/11/2025 at 10:41, Tree monkey 1682 said:

Speak to timberwolf / entec uk for exploded diagrams 

Iv downloaded all the online stuff carnt find any were 

 

[GarethM]

27 minutes ago, John sue said:

I've downloaded all the online stuff can't find any were 

As has been discussed, the box of tricks takes a feed from the alternator to know it's speed probably by sensing the alternator amperage.

 

Probably best checking for loose connections, but if the chipper is charging the battery the stress control box would be my initial guess and or the feed switches and emergency stops.

 

Granted, last Kubota one I repaired had a black sensor next to the flywheel on the starter side of the engine and used SP4 shown in the diagrams.

Edited 23 minutes ago by GarethM

[John sue]

Hi there yes iv checked all the switches in both infeed and reverse buttons✅ 

checked the relays ✅

checked for loose wires ✅

checked the full loom for damaged wires ✅

and crimped the relay connectors tighter ✅

i have check the stop switch on the red safety bar ✅

checked the plug under the hopper and all looks good ✅

 

 

the only thing that I can think to try now is changed the alternator 

or check the wires on that but it charges the battery lovely no issues 

I hope it’s not the h box as I feel that’s gonna be exspensive 

every thing works except the feed won’t stay on 

 

Just seeing if any one on here found any other way of solving there a pretty popular chipper so I carnt be the only one that’s had this problem 😢