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Bobcat  > Skid Steers  > S150 Charge Pressure Shutdown  
 
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 Author Thread: S150 Charge Pressure Shutdown
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
S150 Charge Pressure Shutdown
Posted: 05/01/2012 02:24 PM
I am trying to troubleshoot a charge pressure problem. Warning light blinks on startup. Hydraulics are unresponsive and then safety shutdown occurs. Once in awhile on startup, the hydraulics do kick in and then operation is normal, but lately it takes too many start cycles to make this happen so I think it is time to fix it. I have already switched out the pressure sensor, but no change in behavior. The hydraulic fluid indicator window was completely to the top with fluid so I pumped some out, since the repair manual says incorrect fluid level can cause problems. But that has not helped either. Any suggestions are greatly appreciated.
amigosdemo is not online. Last active: 11/7/2012 1:32:03 PM amigosdemo
Joined: 21 Jun 2011
Total Posts: 27
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 03:27 PM
IM having the same problem with mine. but my hydrolics dont kick in anymore. my harm bar light doesnt come on either.
Kermode is not online. Last active: 9/30/2012 7:02:24 AM Kermode
Joined: 15 Dec 2009
Total Posts: 134
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 05:08 PM
My S185 is doing something similar. When I lower the boom I get the three beeps of death, the lift and tilt valve BICS light goes out and it sets the code, "Failed charge pressure solenoid". The Bobcat mechanic is coming tomorrow to plug in his laptop and make sure that is what the problem is. I'll keep you posted if I find out anything.
biggie is not online. Last active: 5/2/2014 8:56:18 PM biggie
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Joined: 28 Jul 2011
Total Posts: 145
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 06:05 PM
Interesting problems. Could all of you. Tell use the code numbers you're getting. Because, It would help us figure if we are having the same issue. I had a Charge pressure warning come on. All it was, was a loose drive belt. Diag codes "R HUGE". Kermode. Are you talking about a lock valve solenoid? What # code are you getting?
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 07:27 PM
The code for my S150 is 05-14.
7LBSSMALLIE is not online. Last active: 9/25/2014 7:39:02 PM 7LBSSMALLIE
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Joined: 02 Feb 2012
Total Posts: 623
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 07:46 PM
first and foremost a low charge pressure needs confirmation , if low bad stuff happens ,is it actual or indacted. we had some glitches for lows on start up uaslly cold oil. and low throttle.this be normal. software fixed,allowing for errouens codes (nuicance).codes .to be eracited,, if actual low charge press (can only be confirmed with man guage) there are other issues that need dealt with NOW. charge press relief is shimable bring to hi side of spec.. but if actual low charge means oil going somewhere? jacking relief up will not fix problem.
7LBSSMALLIE is not online. Last active: 9/25/2014 7:39:02 PM 7LBSSMALLIE
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Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 07:51 PM
to be aboustley clear on low charge codes, a manual guage needs installed....confirm it is low and not just indacted.
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 08:07 PM
thanks, I will put in a gauge to confirm. But I suspect I will find there is low pressure because when the hydraulics are working, you can tell by a change in engine sound. When the hydraulics aren't working, it almost feels like the pump is waiting for a prime. Is there some solenoid valve that helps get the pump going?
amigosdemo is not online. Last active: 11/7/2012 1:32:03 PM amigosdemo
Joined: 21 Jun 2011
Total Posts: 27
 
Re: S150 Charge Pressure Shutdown
Posted: 05/01/2012 09:04 PM
my codes are 04-14,04-15. these codes are for a 773g
Bobcatdan is online. Last active: 10/1/2014 5:17:19 PM Bobcatdan
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Joined: 03 May 2012
Total Posts: 766
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 04:11 PM
Check your drive belt, I bet it is loose. No. 1 cause for low charge pressure codes is drive belt problems. Actual charge pressure problems are very rear. Also there could be a problem with the 5 volt system. A bad sensor can throw the 5 volts off, any sensor in the circuit.

Bobcat certified mechanic
amigosdemo is not online. Last active: 11/7/2012 1:32:03 PM amigosdemo
Joined: 21 Jun 2011
Total Posts: 27
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 04:56 PM
how would i go on checking the sensors?? i was told by the bobcat dealer that i had a short or ground somewhere in the machine they wanted 2k to fix the problem. they told me that it "might" be the harness.
Bobcatdan is online. Last active: 10/1/2014 5:17:19 PM Bobcatdan
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Total Posts: 766
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 06:04 PM
I'm a bobcat tech, I use the laptop to check the 5 volt system, if it is low, I unplug each sensor one at a time to see if 5 volts reappear. I would think you could use a voltmeter and say pull off one of the sensor ans see if you have 5 volts and go frome there. First thing, check your drive belt, pointer if it is still there should be at 3 o'clock and the belt should be tight with very little defection.

Bobcat certified mechanic
amigosdemo is not online. Last active: 11/7/2012 1:32:03 PM amigosdemo
Joined: 21 Jun 2011
Total Posts: 27
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 06:11 PM
thank you ill try that, this saturday. do you think this is why my seat bar light doesnt turn on? will this cause my hyd , oil light to turn on and shut my machine off?
Bobcatdan is online. Last active: 10/1/2014 5:17:19 PM Bobcatdan
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Total Posts: 766
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 06:21 PM
I'm going to tomorrow at work unplug the oil pressure sensor on a machine to make it go into shut down for another thread. I'm what to know if a machine is going into shut down, if it will not reconize seat bar and stay locked. Seat bar has nothing to with charge pressure, but I wondering if the machine is about to shut off, if it will not enable fuctions. Unless this thing has major electric problems, the two should not be related.

Bobcat certified mechanic
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
Re: S150 Charge Pressure Shutdown
Posted: 05/03/2012 09:46 PM
thanks for the suggestion. I just looked at it now. The tensioner wheel spins pretty easily when I work it with my fingers. It seems like it should press the belt harder. I can't see the indicator but I will clean it off tomorrow and take another look.
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
Re: S150 Charge Pressure Shutdown
Posted: 05/04/2012 09:27 AM
I think you are right, but I can't get any more travel out of the idler. Does that mean I need a new drive belt? The idler feels kind of rattle-ey also, Should it be replaced? This machine has about 700 hours on it. It also spent time at the coast so was subject to corrosion issues.
joelkiff is not online. Last active: 8/29/2012 3:54:41 PM joelkiff
Joined: 01 May 2012
Total Posts: 7
 
Re: S150 Charge Pressure Shutdown
Posted: 05/08/2012 10:13 PM
It was the drive belt. I put in a new one, and a new idler and it is working normally. Thanks!!!
7LBSSMALLIE is not online. Last active: 9/25/2014 7:39:02 PM 7LBSSMALLIE
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Joined: 02 Feb 2012
Total Posts: 623
 
Re: S150 Charge Pressure Shutdown
Posted: 05/09/2012 07:57 PM
idler tips. place in vice clamp with vice grips,spray withh pb turn handle on vice while tapping with hammer should collaspe to spring load, open and close it afew times than never seize, if u shape has divots need to replace it. as to why parts exceed replacemant i do not know and have issues with. another tip is to place the locking tab from a zip tie in it at1203 postition, foresaken that top spot it doesnt want to rotate out of, and personally bcd where you at im in the midwest
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