Just found out today that if your reving the engine the bloody thing treats i as driving time was using the plant on the truck on high revs checked and it recorded as driving hat normal
bjd:
Just found out today that if your reving the engine the bloody thing treats i as driving time was using the plant on the truck on high revs checked and it recorded as driving hat normal
Didn’t know that could happen, I’ve got an analogue “cd player” type unit and that can flash to driving when being loaded by a large bucket (when the lorry is rocked,particularly if the body is raised to weigh it).
One of our drivers says his digitach won’t record any breaks less than 45 minutes, anyone else had this problem?
poxy things you would think with all the teccnolageythey would be better this time of year there an hour behind as well due to our time zone give me an anologe any day
The tacho is wired up to the speedo not the rev counter so i cant see how it registered the revs as driving time :-/
bubsy06:
The tacho is wired up to the speedo not the rev counter so i cant see how it registered the revs as driving time :-/
correct
supposing original post is also correct get the vehicle in for a check summat is up at mill
If it has recorded it get it looked at ASAP when winter comes it might look like you have had no breaks!!
I believe the sensor for the tacho is on the gearbox. So high revs might get noticed by the tacho.
theres a story that the Irish have worked out how too fool the sensor so it wont write on your card.
Muckaway:
One of our drivers says his digitach won’t record any breaks less than 45 minutes, anyone else had this problem?
It wont record any breaks of less than 15 minutes…
chris mc:
If it has recorded it get it looked at ASAP when winter comes it might look like you have had no breaks!!I believe the sensor for the tacho is on the gearbox. So high revs might get noticed by the tacho.
theres a story that the Irish have worked out how too fool the sensor so it wont write on your card.
And the Dutch, Polish, Danish, Germans, French etc etc! Oh and funnily enough, the British too.
Let me guess; when you said ‘using the plant on the vehicle’ you’re using something that hat a PTO driven from some form of reduction box that takes it’s power from the gearbox output shaft. In which case the digital tacho will regard the vehicle as moving because the output shaft is rotating and that’s what the motion sensor uses as it’s signal, the fact that the vehicle is stationary using the PTO is not registered by the VU as that is happening ‘downstream’ of where the tacho picks its’ data signal from.
The only thing that comes to mind is use the ‘out of scope’ function to record time on site when the vehicle is stationary with the PTO running. Bit of a chore but to be fair the analogue tacho would do exactly the same thing because it’s motion sensor is the same type and fitted in the same place.
VUs not recording anything less than 45 minutes break. Two options;
1- the tacho is faulty
2- the driver is not pushing button correctly
Leaving aside the old argument about ‘split minutes’ if the vehicle is stationary for 12 whole minutes and you have selected ‘break,’ that is what will be recorded on the VU and any card inserted. However, as we all know, 12 minutes is not a break as far as the drivers hours regulations are concerned.
geebee45:
Let me guess; when you said ‘using the plant on the vehicle’ you’re using something that hat a PTO driven from some form of reduction box that takes it’s power from the gearbox output shaft. In which case the digital tacho will regard the vehicle as moving because the output shaft is rotating and that’s what the motion sensor uses as it’s signal, the fact that the vehicle is stationary using the PTO is not registered by the VU as that is happening ‘downstream’ of where the tacho picks its’ data signal from.The only thing that comes to mind is use the ‘out of scope’ function to record time on site when the vehicle is stationary with the PTO running. Bit of a chore but to be fair the analogue tacho would do exactly the same thing because it’s motion sensor is the same type and fitted in the same place.
VUs not recording anything less than 45 minutes break. Two options;
1- the tacho is faulty
2- the driver is not pushing button correctlyLeaving aside the old argument about ‘split minutes’ if the vehicle is stationary for 12 whole minutes and you have selected ‘break,’ that is what will be recorded on the VU and any card inserted. However, as we all know, 12 minutes is not a break as far as the drivers hours regulations are concerned.
you dropped a clanger this time SHERLOCK…PTO’s take there drive from the input side of the gearbox as this is conected to the engine and spins constantly when the engine is running and clutch is released, to run a pto from the output side would require the truck be in gear whic would mean the wheels would be turning…unless he drives a mack with 2 netural positions,1 on the stick and 1 on the range change 
205:
geebee45:
Let me guess; when you said ‘using the plant on the vehicle’ you’re using something that hat a PTO driven from some form of reduction box that takes it’s power from the gearbox output shaft. In which case the digital tacho will regard the vehicle as moving because the output shaft is rotating and that’s what the motion sensor uses as it’s signal, the fact that the vehicle is stationary using the PTO is not registered by the VU as that is happening ‘downstream’ of where the tacho picks its’ data signal from.The only thing that comes to mind is use the ‘out of scope’ function to record time on site when the vehicle is stationary with the PTO running. Bit of a chore but to be fair the analogue tacho would do exactly the same thing because it’s motion sensor is the same type and fitted in the same place.
VUs not recording anything less than 45 minutes break. Two options;
1- the tacho is faulty
2- the driver is not pushing button correctlyLeaving aside the old argument about ‘split minutes’ if the vehicle is stationary for 12 whole minutes and you have selected ‘break,’ that is what will be recorded on the VU and any card inserted. However, as we all know, 12 minutes is not a break as far as the drivers hours regulations are concerned.
you dropped a clanger this time SHERLOCK…PTO’s take there drive from the input side of the gearbox as this is conected to the engine and spins constantly when the engine is running and clutch is released, to run a pto from the output side would require the truck be in gear whic would mean the wheels would be turning…unless he drives a mack with 2 netural positions,1 on the stick and 1 on the range change
Bit harsh with the evil face 205!
Have you got your magnet on the wrong way round
fuse:
Have you got your magnet on the wrong way round
205 said;
you dropped a clanger this time SHERLOCK…PTO’s take there drive from the input side of the gearbox
.
I agree entirely with your comments, other than on the 5 vehicles that I have looked at where PTOs were driven from the gearbox output shaft, hence my original comment. Those 5 vehicles all displayed the characteristics described by the OP
geebee45:
205 said;you dropped a clanger this time SHERLOCK…PTO’s take there drive from the input side of the gearbox
.
I agree entirely with your comments, other than on the 5 vehicles that I have looked at where PTOs were driven from the gearbox output shaft, hence my original comment. Those 5 vehicles all displayed the characteristics described by the OP
I use a PTO with a lorry mounted crane and i can be using it for 3 hours, for example, and then drive for 2 and the digi tacho doesn’t warn me that I’m not taking my breaks. That being the case, I can’t see how the original post is correct.
certain vehicles, usually roadworking gear, use the vehicle propshaft to run the pto in a transfer box halfway down the chassis, we used to have to fit a new tacho speed sensor on the transfer box
205:
geebee45:
Let me guess; when you said ‘using the plant on the vehicle’ you’re using something that hat a PTO driven from some form of reduction box that takes it’s power from the gearbox output shaft. In which case the digital tacho will regard the vehicle as moving because the output shaft is rotating and that’s what the motion sensor uses as it’s signal, the fact that the vehicle is stationary using the PTO is not registered by the VU as that is happening ‘downstream’ of where the tacho picks its’ data signal from.The only thing that comes to mind is use the ‘out of scope’ function to record time on site when the vehicle is stationary with the PTO running. Bit of a chore but to be fair the analogue tacho would do exactly the same thing because it’s motion sensor is the same type and fitted in the same place.
VUs not recording anything less than 45 minutes break. Two options;
1- the tacho is faulty
2- the driver is not pushing button correctlyLeaving aside the old argument about ‘split minutes’ if the vehicle is stationary for 12 whole minutes and you have selected ‘break,’ that is what will be recorded on the VU and any card inserted. However, as we all know, 12 minutes is not a break as far as the drivers hours regulations are concerned.
you dropped a clanger this time SHERLOCK…PTO’s take there drive from the input side of the gearbox as this is conected to the engine and spins constantly when the engine is running and clutch is released, to run a pto from the output side would require the truck be in gear whic would mean the wheels would be turning…unless he drives a mack with 2 netural positions,1 on the stick and 1 on the range change
Mr Holmes I deduce you are talking out of somewhere dark and dingy, power take offs have many different positions, some vehicles require 2 or sometimes 3 units to drive ancillary equipment, tachographs also have separate facilities for recording more than just driving time. It is possible to use a tachograph to check if a fridge unit has been running constantly or if the vehicle has been idling unnecessarily.
I have never driven a Mack but i did drive a Scania 86 where you had to put the gear shift into 6th high and let the clutch out after activating the pto. I also drove a Ford D series which let you put the gearbox into any gear to drive the pto. The D series didn’t have a tachograph fitted, the Scania did.
Modern telematics can also do the same thing with many different types of data being analysed, idle time, fuel consumption, when doors are opened or closed, when tipper bodies are raised or if the driver stopped to fuel up
ok thxs guys but i have susssed it when using the plant the road wheels at the back are jacked up and they turn while its jaced so i think thats why its happening cheers
bjd:
ok thxs guys but i have susssed it when using the plant the road wheels at the back are jacked up and they turn while its jaced so i think thats why its happening cheers
Or in other words “what geebee45 said”
bjd:
ok thxs guys but i have susssed it when using the plant the road wheels at the back are jacked up and they turn while its jaced so i think thats why its happening cheers
which means the parking brake is not being used then ?