For Ducks sakes.

[Storrsy]

So been using the Tak Duck a bit today. A problem seems to have arisen. The foot brake which you depress fully to engage the parking brake works well and when engaged won't go anywhere. However, the problem is when I go up a slope it doesn't go up as if something is binding- the engine bogs right down when I press the accelerator. One time it did it something suddenly freed up and it went up the slope without restriction but then next time I tried it was back again... Any ideas? Cheers

 

[V8Druid]

So been using the Tak Duck a bit today. A problem seems to have arisen. The foot brake which you depress fully to engage the parking brake works well and when engaged won't go anywhere. However, the problem is when I go up a slope it doesn't go up as if something is binding- the engine bogs right down when I press the accelerator. One time it did it something suddenly freed up and it went up the slope without restriction but then next time I tried it was back again... Any ideas? Cheers

do you have a physical/mechanical lock down for the pedal which has to be released to release the brake?
do you also have a 'switched' park/working brake (mine has never seemed to work - assume it operates when a servo motion is engaged?)
try a 'creep' backwards, 'fore going forwards (or vice versa) might be sticking ?

 

[CPS]

No crap behind the petal causing it not to return properly?

 

[Storrsy]

do you have a physical/mechanical lock down for the pedal which has to be released to release the brake?
do you also have a 'switched' park/working brake (mine has never seemed to work - assume it operates when a servo motion is engaged?)
try a 'creep' backwards, 'fore going forwards (or vice versa) might be sticking ?

Yes physical lock down for the pedal. Which releases fine . It also has a switch for park brake but I don't touch this so don't think it's the problem. Rory suggested it might be the high/low solenoid (which doesn't work too well anyway) not automatically stepping down to low when the slope increases. To me it feels more like brakes sticking and not sure if it automatically steps down to low anyway- but am easy thing to test next time.

 

[V8Druid]

Yes physical lock down for the pedal. Which releases fine . It also has a switch for park brake but I don't touch this so don't think it's the problem. Rory suggested it might be the high/low solenoid (which doesn't work too well anyway) not automatically stepping down to low when the slope increases. To me it feels more like brakes sticking and not sure if it automatically steps down to low anyway- but am easy thing to test next time.

do you have a high/low/crawler switch set up .. mine will step down to low from high automatically, if it can't cope with the demand. Crawler has to be switched in and is available in high or low - high crawler is somewhere between hi and low, speed wise
how long has it been stood about 'fore you had it ? Might just need exercising?

 

[Storrsy]

do you have a high/low/crawler switch set up .. mine will step down to low from high automatically, if it can't cope with the demand. Crawler has to be switched in and is available in high or low - high crawler is somewhere between hi and low, speed wise
how long has it been stood about 'fore you had it ? Might just need exercising?

So it has 2 switches. One is crawler and the other is low. When neither are engaged it's in high- not sure if it's steps down automatically to low when a hill arises. The seller used a G clamp to keep the solenoid in to engage low when its onsite as he said the switch doesn't always engage low. It was working fine the other day was going up and down a steep ramp with out issues in high.

 

[V8Druid]

So it has 2 switches. One is crawler and the other is low. When neither are engaged it's in high- not sure if it's steps down automatically to low when a hill arises. The seller used a G clamp to keep the solenoid in to engage low when its onsite as he said the switch doesn't always engage low. It was working fine the other day was going up and down a steep ramp with out issues in high.

it will move off in low anyway and step up to high probably - should step down to low automatically or it'll grind to a halt
the lack of/intermittent engagement for low could well be down to dirty slip rings down through the commutator -- some contact cleaner applied to the rings'd possibly help

 

[bobthebuilder]

do you have a road going travel switch lever?

 

[Storrsy]

it will move off in low anyway and step up to high probably - should step down to low automatically or it'll grind to a halt
the lack of/intermittent engagement for low could well be down to dirty slip rings down through the commutator -- some contact cleaner applied to the rings'd possibly help

Ok thanks. Will look into the high/low solenoid and report back. Felt like brakes were binding to me but all new to me. Funny when it's sitting there idling away I can hear solenoids operating despite nothing actually being used.

 

[Storrsy]

do you have a road going travel switch lever?

Not as far as I know. The problem is intermittent because it has been going up slopes fine and then all of a sudden decides not on the next one- hits a hill and engine just bogs/labours intensly but won't climb the slope.

 

[V8Druid]

Ok thanks. Will look into the high/low solenoid and report back. Felt like brakes were binding to me but all new to me. Funny when it's sitting there idling away I can hear solenoids operating despite nothing actually being used.

curious?

Not as far as I know. The problem is intermittent because it has been going up slopes fine and then all of a sudden decides not on the next one- hits a hill and engine just bogs/labours intensly but won't climb the slope.

usually has a lock out of the 'machinery' for road travel - i.e. so you can't operate the boom/dipper/slew

so it travels to the slope and bogs as soon as you start to climb ? - sounds like it's in high - tried crawler? - low seems to be 'dropping out' - solenoid held with a G clamp is not exactly OE spec. -- my best guess is slip ring issues giving intermittent power to that solenoid
you could try running a power line direct to the solenoid (you couldn't slew much/work) from the battery and if it holds in, you have the issue - slip rings'll corrode standing - copper/brass combi usually and doesn't take much to make them go open circuit in particular positions then

 

[Storrsy]

curious?

so it travels to the slope and bogs as soon as you start to climb ? - sounds like it's in high - tried crawler?

Yeah that's it. Goes ok on the flat- although not sure if the engine isn't working a little harder then it should. One time It was unable to go up a ramp so I swung 360 and then it suddenly went up fine.

The clicking solenoids when it's sat there seems a bit odd to me I must say but don't seek to effect operations- unless it's the cause of the brakes sticking ..

 

[Storrsy]

I'm enjoying messing around in the duck very much but already wishing I had something a little fresher- a mecalac 9MW perhaps

 

[V8Druid]

Yeah that's it. Goes ok on the flat- although not sure if the engine isn't working a little harder then it should. One time It was unable to go up a ramp so I swung 360 and then it suddenly went up fine.

The clicking solenoids when it's sat there seems a bit odd to me I must say but don't seek to effect operations- unless it's the cause of the brakes sticking ..

again sounds like it's in high ........ doing the 360 will mean the wiper fingers in the commutator'll have disturbed any crud and made a circuit

where are the solenoids that you can hear clicking? - upstairs or downstairs?

 

[V8Druid]

I'm enjoying messing around in the duck very much but already wishing I had something a little fresher- a mecalac 9MW perhaps

teething troubles - you'll get it sorted .. a duck really does need everything working in perfect harmony as it should ... took me a while to iron out some of the electrical issues with the 'Drema ... there is a LOT of leccies in a duck
the speed of mobility is a huge bonus with a duck

 

[Storrsy]

again sounds like it's in high ........ doing the 360 will mean the wiper fingers in the commutator'll have disturbed any crud and made a circuit

where are the solenoids that you can hear clicking? - upstairs or downstairs?

Sounds like theyre under the travel pedals...quite a robust thunk sound

Sorry what do you mean with the commutator- is that part of the solenoid?

 

[Storrsy]

teething troubles - you'll get it sorted .. a duck really does need everything working in perfect harmony as it should ... took me a while to iron out some of the electrical issues with the 'Drema ... there is a LOT of leccies in a duck
the speed of mobility is a huge bonus with a duck

Yeah a scary amount of solenoids I'm coming to realise and in general more moving parts although I imagine the TB175 is probably pretty basic compared with more modern offerings. So far I've been pretty pleased with where I've managed to get it on slopes etc. deliberately been trying to push the boundaries a bit (with caution in mind) just to get a feeling of it's capabilities etc. I'm still at the sitting slightly tensed up position

 

[V8Druid]

Sounds like they're under the travel pedals...quite a robust thunk sound

Sorry what do you mean with the commutator- is that part of the solenoid?

that's possibly travel valves operating - mine makes a few noises under the floor/pedal region - 's where my travel control valves are and often 'thunk' sat about idling - the pedals are usually servo pressure

commutator is the set of slip rings that go down through the centre of the rotary coupling carrying your hydraulics in the centre of the slew ring
this is mine

 

[V8Druid]

Yeah a scary amount of solenoids I'm coming to realise and in general more moving parts although I imagine the TB175 is probably pretty basic compared with more modern offerings. So far I've been pretty pleased with where I've managed to get it on slopes etc. deliberately been trying to push the boundaries a bit (with caution in mind) just to get a feeling of it's capabilities etc. I'm still at the sitting slightly tensed up position

up/down is no real issue - cross slope is seat foam time ..... trials with the boom cross carriage and hovering above the deck, downhill, to save yerself, will give you some idea ... the 'Drema is tall and cross slopes feels pretty dramatic - Ask @TiltyShaun

 

[Storrsy]

curious?

usually has a lock out of the 'machinery' for road travel - i.e. so you can't operate the boom/dipper/slew

so it travels to the slope and bogs as soon as you start to climb ? - sounds like it's in high - tried crawler? - low seems to be 'dropping out' - solenoid held with a G clamp is not exactly OE spec. -- my best guess is slip ring issues giving intermittent power to that solenoid
you could try running a power line direct to the solenoid (you couldn't slew much/work) from the battery and if it holds in, you have the issue - slip rings'll corrode standing - copper/brass combi usually and doesn't take much to make them go open circuit in particular positions then

Good advice thanks. The G clamp was what previous owner used haven't used it yet but thinking when it struggle on the slope if I clamp it and it works then I'm in the right ball park- then I can use your power to the solenoid suggestion to see if it's the actual solenoid at fault or the slip ring/connectors etc.