Think I have my CDS problems figured out!

[Chris A]

so my CDS was a repo unit, I bought it with 400 hours, and since I've had it I've had problems with the clutch being overloaded and slipping out. Now I found that all the fluid lines are completely clogged! Looks like a couple rounds with a descaler and I should be good to go! Maybe I'll finally get some heat out of it too. The last 2 weeks I've been struggling to keep 1 of my 2 CDS' running at a given time. The old 47 is still in peices waiting to be re-wired.

 

[Dolly Llama]

so my CDS was a repo unit, I bought it with 400 hours, and since I've had it I've had problems with the clutch being overloaded and slipping out. Now I found that all the fluid lines are completely clogged! Looks like a couple rounds with a descaler and I should be good to go! Maybe I'll finally get some heat out of it too. The last 2 weeks I've been struggling to keep 1 of my 2 CDS' running at a given time. The old 47 is still in peices waiting to be re-wired.

Chris, hopefully someone will correct me if I'm wrong, but blockage in the plumbing shouldn't cause your clutch slippage probs.
no more than a low flow (small jet) tool or partially closing the ball valve on the end of your solution line would.
Choke off the flow and the unloader/regulator by-passes thru the loop

are you sure it's the clutch slipping and not the belts?

..L.T.A.

 

[Jim Martin]

clutch slip is normally a glazed clutch or a over load

 

[Greenie]

maybe the clutch is just hooped?

have you put a new clutch on it recently...or same one since you bought it?

what are the symtoms again?

 

[Chris A]

This has been ongoing, the belts are good, the clutch is new, the water lines are the worst I've ever seen. Water's not even recirculating to the water box. I waterclawed a job yesterday with the pressure system off and it was fine. Here's the symptoms:

-clutch slipping out under "full" load (12-13 hg)
-Heat drops off considerably when wand is set down (after 10 seconds or so)
-Water lines are so clogged up that virtually nothing is flowing through them

When I talked to Hydramaster yesterday they told me to check the inlet and outlet hoses on the blower HX for debris, they were clear. Wouldn't it be feasable that these lines are so goobed that they're causing the pump to work overtime and strain the eintire system? I'm waiting on some descaler to come in so I can test this for sure.

 

[TimP]

You may want to check voltage to the clutch. I've heard low voltage may cause problems with clutches. Not that this is the problem but it's a possibility.

I wouldn't think a pump would cause a problem unless the pump itself itsn't moving properly or there is something wrong with the pump clutch. Internal plumbing would affect flow rates. Maybe you might have an unloader problem that recirculates the water so that the water don't build pressure beyond what you set it at? I don't know.

 

[Chris A]

I think the unloader may be part of it. I'm taking it apart now.

 

[Jim Martin]

is the waste tank filling up real fast..????

 

[Chris A]

no not at all.

 

[Greenie]

the million dollar question is, how in the hell did all the lines get "clogged"?

you may be ahead of the game to just swap out some new hoses, and then do the descale, it may be too far gone in it's current state to repsond to just a descale?

 

[Rex Tyus]

Once a clutch "slips" it is no longer new. It is burnt. Ask me how I know. TimP is also correct the number one cause for clutch failure is voltage drop. I state this because I read it on the little brochure that came with every one of the NUMEROUS clutches I went through before I found the voltage problem.

Voltage meters are cheap. Check the voltage on the wire going directly to the clutch. make sure your ground wire is good as well. 12v will be a minimum. 11.9 don't get it. Better around 13 volts. This may not be your problem but it is a distinct possibilty, and an easy check.

I am serious about the clutch being burnt when it slips under load also.

 

[Dolly Llama]

well then, tell the young man where to buy one so he doesn't hosed by Bridgepoint or HM


..L.T.A.

 

[Rex Tyus]

well then, tell the young man where to buy one so he doesn't hosed by Bridgepoint or HM


..L.T.A.

What a volt meter? or a clutch? Volt meter as bad as i hate to say it WALMART even has them. Lowes or any electrical supply place.

A clutch, get the model off the one he has and take it to Carquest. They can cross reference about anything. Or better yet find a good Pitts distributor and cross reference what ever cheap chinese pos is on there and get a good one.

 

[Chris A]

I've replaced the clutch once, this ones got about 30 hours on it.

 

[Rex Tyus]

So the one you have hasn't "slipped" yet? If it hasn't you are good when you get the other issues resolved. If it has, there is a good chance it will again even after the cause is identified and corrected. Have you checked your voltage to the clutch recently? My drop was caused by the parking brake feed back resistor or something like that. The heat down here just cooked them. SOOOOO I cut that sucker out. Eliminated the auto shutdown float switch as well. A known source of failure.

This is a stupid question and I appoligize if it has been covered, but did you remember to burnish the new clutch when you installed it? I think Jim may have mention it earlier but missed the responses if any on it. I feel your pain. A continuous clutch problem can be very un nerving. I hope you get it resolved.

 

[Out of Character - 0]

How does one burnish a clutch?

I've installed 2 of them on our machines and never been informed I needed to burnish, I've also not had problems with the new ones.

 

[Rex Tyus]

How does one burnish a clutch?

I've installed 2 of them on our machines and never been informed I needed to burnish, I've also not had problems with the new ones.

Keep the machine on low rpm setting. turn power on for a couple of seconds then off 15 to 20 times. I forgot what the percentage of torque potential is lost when this is not done but it was significant. If you have been using it for a significant amount of time is has more than likely burnished itself. If recently installed it is a quick saftey measure worth doing. As far as I know Cleanco drives their blowers harder than most others, thus requiringa higher level of performance from a clutch.

It really is STRONGLY suggested on clutch replacement for the Cleanco's I don't know about the lesser truck mounts. :mrgreen:

 

[Chris A]

I did burnish it, I'll check the voltage tomorrow, Ive got a couple jobs I'm gonna tackle with my old van first, then I'll tear into it in the afternoon.

 

[D Rice]

I think Doug Cox had the problem figured out on your last post. If the float switches on the mix tank are working it tells the Dema valve (solenoid) on the water inlet to open and bring in fresh water which in turn siphons chemical into the system. My local dealer is no help but Hydra Master tech dept will walk you through it, talk to Dennis, the guy is the best. They have always been very helpful when I call.

 

[Chris A]

actually Doug this is a different CDS I'm talking about now, my daily driver is a 4.8 Salsa that's been giving me problems. The onbe not getting fresh water is my old retired 4.7

 

[Chris A]

update, trucks in the shop, I'm done f*cking with it.

 

[Bob Foster]

.

 

[Jim Pemberton]

That won't be necessary Bob. We aren't charging him a red cent, or any other cent, for that matter..

I'll work it out with the seller later.

 

[Chris A]

Brother, I have felt your pain.

Ask them to justify every red cent and why they did what they did and ask for the old parts back.

Bob I'm fortunate enough to have a dist. that I trust, which is why I drive 120 miles to Pembertons instead of 20 for my local TM wrench monkey.

 

[Rex Tyus]

Any update on this? Just curious what the solution was if it has been identfied yet.

 

[Chris A]

Yeah, actually I have it back now, apparently the clogged lines throughout the entire system caused an extra load, which glazed the serpentine belt! So actually the clutch was ok the whole time, it was the belt slipping. Also same reason why the pump clutch didn't go, it was the belt. At any rate I've had it back for a week and a half and 'sall good.

 

[Rex Tyus]

Glad to hear you got it going. It reminds me of a time I had power steering fluid leaking on the serpentine......That was a pain in the ass.

 

[Chris A]

I would imagine