Hydraulic brakes on a 30K GVW chassis?

[Blakesmaster]

Obviously air brakes are a better option but are they necessary? This isn't a licensing issue, I'm just looking at a used bucket that has hydraulic brakes and am wondering if that's a good enough reason to walk away from the truck. I would never be towing any more than a chipper or a dingo with a full load of chips. Opinions? Advice? Thanks guys.

 

[tree MDS]

I suspect you would be fine. Just make sure the belt that drives the pump for your brakes is in good shape and fluid is good, that's the deal with those, I think. There should be an electric backup for the brakes too, in case something does go south.

You can't have everything, you cheap bastard!

 

[Bigus Termitius]

Sure it would be fine. I'd want brakes on whatever I might tow as well, just be on the safe side.

 

[Blakesmaster]

Sure it would be fine. I'd want brakes on whatever I might tow as well, just be on the safe side.

Yeah, we never hooked up our chipper brakes as we deemed them unnecessary behind the F800, but we'll be getting them refurbished for this truck if we get it.

 

[lxt]

if its diesel??? id want airbrakes!

if its gas???? well, hydraulics are ok..........the 30,000 gvw not sure you`ll see that or want too if its gas??? whats the curb weight/unladen weight....to me that always made a big difference!

I just remember Asplundh gas powered buckets with hyd brakes......great when new.....but 2-3years down the road those things where pigs on the hill & hell to stop going down the other side!!!


LXT..............

 

[treemandan]

Yeah, we never hooked up our chipper brakes as we deemed them unnecessary behind the F800, but we'll be getting them refurbished for this truck if we get it.

Yeah well the guys at the DOT stop might not be thinking the same thing you are about them chipper brakes.

 

[Blakesmaster]

if its diesel??? id want airbrakes!

if its gas???? well, hydraulics are ok..........the 30,000 gvw not sure you`ll see that or want too if its gas??? whats the curb weight/unladen weight....to me that always made a big difference!

I just remember Asplundh gas powered buckets with hyd brakes......great when new.....but 2-3years down the road those things where pigs on the hill & hell to stop going down the other side!!!


LXT..............

Not sure what it being a diesel or a gas has to do with whether or not hydraulic brakes will stop it, but yeah, it's diesel. No doubt about it, I WANT air brakes, but being the cheap bastard I am, I'm still considering buying this truck. Just wondering how much of a deal breaker hydraulic brakes on a forestry bucket should be.

 

[tree MDS]

Not sure what it being a diesel or a gas has to do with whether or not hydraulic brakes will stop it, but yeah, it's diesel. No doubt about it, I WANT air brakes, but being the cheap bastard I am, I'm still considering buying this truck. Just wondering how much of a deal breaker hydraulic brakes on a forestry bucket should be.

I'm curious as the what the truck being gas or diesel has to do with the brakes as well. I could see standard vs. automatic being an issue to consider with regards to stopping, but not gas vs. diesel.

I think if hyd. brakes are good enough for asplundh, they will be fine for your operation..

 

[Blakesmaster]

I'm curious as the what the truck being gas or diesel has to do with the brakes as well. I could see standard vs. automatic being an issue to consider with regards to stopping, but not gas vs. diesel.

I think if hyd. brakes are good enough for asplundh, they will be fine for your operation..

I was being coy last night but maybe there's a difference compression-wise for engine braking on a down shift? I don't know. I guess I'll assume that if it's been manufactured as is there's no real reason to be afraid of it.

 

[tree MDS]

I was being coy last night but maybe there's a difference compression-wise for engine braking on a down shift? I don't know. I guess I'll assume that if it's been manufactured as is there's no real reason to be afraid of it.

Diesel engines typically have way more compression than gas.. the way I understand it. I think you'll be good to go.

 

[Blakesmaster]

Diesel engines typically have way more compression than gas.. the way I understand it. I think you'll be good to go.

I feel so much better now, oh wise one. lol

On to the next question, anybody know any pros/cons of a 3126b CAT engine? Not a lot of definitive info out there but from what I've gathered, it's not the best diesel but if taken care of and well maintained, it's perfectly fine. Thoughts?

 

[tree MDS]

I feel so much better now, oh wise one. lol

On to the next question, anybody know any pros/cons of a 3126b CAT engine? Not a lot of definitive info out there but from what I've gathered, it's not the best diesel but if taken care of and well maintained, it's perfectly fine. Thoughts?

OMFG!! NOT THE CAT 3126b!! DON'T DO IT MAN!!! :msp_scared::msp_scared:

...

 

[Mike Cantolina]

Diesels are heavier.

 

[jg55056]

Main difference in brakes is the ease of maintenance on air over hydraulic. After years of service air brakes are still easy to fix. Hydraulic can be a bit of a pain when dealing with lines, bleeding, air in system, leaky seals here and there. Not near as much to go wrong on an air brake system. Air brakes are relatively cheap to fix because the simplicity of the system. The 3126 is a good engine, just weak. Maintain it and it should last.

 

[Grace Tree]

Plus, it sounds cooler and you can use them to get the guy ahead of you moving when the light turns green or let someone know they pulled out in front of you without blowing the horn. This is more important than safety.
Phil

 

[ducaticorse]

My 97 33k Aspluhnd stopped fine with a load of chips ad a bandit 150.

 

[Natewood]

I cant think of a better in town diesel for a medium duty truck....Those cat 3116 had issues but the 3126 was a much better motor. I got one wit 328xxx in town miles running like new still...

 

[ducaticorse]

I cant think of a better in town diesel for a medium duty truck....Those cat 3116 had issues but the 3126 was a much better motor. I got one wit 328xxx in town miles running like new still...

328K in town miles?

 

[Natewood]

328K in town miles?

mostly... it went down the coast for a couple hurricanes but even the once it got there it was stop and go 40 mi radius stuff

 

[lego1970]

The difference between air versus hydraulic.

Air is easier if useing couplings (hooking up trailers) does not boil, and since you have air you can operate other companants such as starters, windshild wipers, and various other pneumatic componants.

The bad thing is that air requires hp to compress the air, can get ice formation in the lines, and since it's an open system salt spray, humidity and other contaminants from the air are injested and dispersed into the entire system. They also are not as linear in their braking performance.....more springy and tempature fluctation will alter the braking perfomance.

Hydaulic,
Pros is that the braking is linear, it's a closed system, and does not rob the motor of hp.

Cons. Doesn't hook up well if your useing a coupling system. Boils under high temps.


I'm sure the hydraulics are fine. The engineers do a pretty good job of designing and matching up componants, however a bad operator can destroy the design of any good engineering platform.

I know nothing about the 3126B Cat engine other then that they have been used extensively in Cement truck, School buses and other local applications therefore while there may be certian design flaws, parts and experienced mechanics should be plentiful.

Good luck.