New Holland LS 150 Skid Steer

Wayne Mo · Nov 11, 2010

My 2002 model New Holland LS 150 skid steer has been intermittently indicating low hydraulic charge pressure and shutting down the engine. I was able to restart it and operate it up till today. It has been setting for a few weeks but now will not continue running and indicates the hydraulic charge pressure is low.
I heard these sometimes have a defective hydraulic charge sensor and also that maybe a filter change will fix it. It only has 300 hours on it and everything else works fine. I plan to remove the sensor if I can find it!
Anyone with experience with this problem with some advice?
Also the battery is the original and I suspect it is on borrowed time. Any suggestions on a replacement? I suspect the NH batteries are very expensive but the terminals connect to special studs instead of normal posts.

RodinNS · Nov 12, 2010

Have you checked the hydraulic oil level? Mine will shut down if it has a low oil level. I don't know if that's because the charge pressure drops or because there's a manometer there checking suction pressures as well... but check the oil first.
I can't see why changing the oil filter will improve anything as it's a return filter and should not in any way effect the charge pressure.
I'd have to do a bunch of research to tell you where those sensers are located because I've never had to dig that deep into the problem although mine does sometime set the charge light partially alight... indicating a partial connection somewhere inthe circuit... either a bad sensor or a bare wire somewhere.

Rod

Anonymous-0 · Nov 12, 2010

Doesn't the manual have a trouble shooting guide? Oil level is the first thing to check though. If it's a new machine and the filter has never been changed, it would be a good idea to change it. It's often recommended to change the original filter after only 50 hours because it's possible some debris is still in the system from the factory. Dave

Bill Lisbon · Nov 12, 2010

You can get a battery at your local Napa dealer.

Wayne Mo · Nov 12, 2010

Good News, I replaced the Hydraulic Charge Pressure Sensor and it works great. These are a definite problem and if there is oil stain on them, they are bad likely. They are normally closed switches and the pressure opens them but if oil gets inside, they never can open the circuit. The new ones are a little different in appearance, they must have improved them. They cost $45.
The local dealer sells a replacement battery for $107 but it is not a New Holland. Mine has lasted 8 years but do not know how the replacement would last. Problem is you never know when it will fail and you cannot get the battery out with the boom down! You would have to jump it first and raise the boom I guess.

RodinNS · Nov 12, 2010

Far as I know those are a standard Group 31 top stud truck battery. Napa has them here... the 1100 CCA variety, made by East Penn... for about 120 bucks... but to be honest the original is still in mine at 9 3/4 years... the longest lived Exide I've ever seen.
Probably blow tomorrow...

Rod

New Holland LS 150 Skid Steer

Wayne Mo

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RodinNS

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Anonymous-0

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Bill Lisbon

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Wayne Mo

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RodinNS

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