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  Viewing User Profile for: Bobcatdan
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Joined: 05-03-2012 03:53 PM
Last Login: 10-23-2014 06:08 PM
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Signature: Bobcat certified mechanic
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 Post Statistics
Bobcatdan has contributed to 818 out of 76,643 total posts (1.07% of total).
Most Recent Posts:
Re: t190 hydraulics real slow and machine won't move like brakes still! 9/21/2014 6:55:55 AM   (Total replies: 0)
If one side works, you have pressure. Brakes are release by charge pressure, 450 psi of so. Problem would be the side not driving. Brakes are spring applied, hydraulic release. Remove any line? There are two hoses, brake and case drain that if you tried hard enough, you could swap. As to slow loader function, does the main sound like it is laboring to lift the boom? Maybe a stuck aux, worth a check. Otherwise, flow equals speed, low pump flow, low cycle speed. Pressure equals power.

Re: t190 hydraulics real slow and machine won't move like brakes still! 9/24/2014 1:31:38 PM   (Total replies: 1)
Not that I live by this rule, but you are suppose to replace the sprockets when replacing tracks. The tracks hitting the guard is not going to stop the track. I have seen tracks wear right threw the guard and the fitting below. Even if you loosen the track, you will not be able to roll it because the brake is on.

Re: t190 hydraulic failure 10/8/2014 9:22:44 AM   (Total replies: 1)
I would lean towards pump. 1800 psi max pressure alone is crap, spec is 3300 psi. That far below and it can not be adjusted up pretty much screams pump. The dealer should have down a direct pump test which plumbs the flowmeter in between the pump and vavle to verify for sure. BICS has nothing to do with your problem.

Re: t190 hydraulic failure 10/9/2014 2:52:58 AM   (Total replies: 1)
Basic hydraulic lesson here. Pressure equals power. Flow equals speed. You need both to do something. The problem you have is you have squat for flow. Pressure isn't effected much by rpm. Flow is directly effect by rpm. That is why you have to run it full bore to get the arms to move. The pump at that rpm is squeaking out just enough to do something. Also pressure settings are not unverisal. Machines are designed to work at certain pressures. Even if you had half way decent flow, at 1800 psi, ...

Re: t190 hydraulic failure 10/9/2014 5:25:59 PM   (Total replies: 1)
I guess it wouldn't hurt to do the spool seals because they will leak at some point. That said, it may be a can of worms you don't want to open. When somebody says reseal the vavle, all you are doing is replacing 4 seals, two on the lift spool and tilt spool. No reason to touch the aux spool because it never leaks. If you do, pay extremely close attention to the way the seals go in. If put in backwards, they will leak badly in about 5 minutes. Also they can be easy to tear installing, once ...

Re: t190 hydraulic failure 10/14/2014 4:29:56 AM   (Total replies: 1)
I'd look to see how much metal is in the system first. Gear pumps are funny critters and dont need to destroy themselves to stop working. I have replaced a few that looked to have minor wear. The big question is does he have power bob tach and does that still work? If it does, the isn't enough metal to hurt anything. If there is a ton of metal, replacement of the cooler and flushing are needed. At least change hydraulic filters with a new pump.

Re: t190 hydraulic failure 10/23/2014 3:17:12 PM   (Total replies: 0)
Before you use it, check and set the relief pressure. If the vavle was out of adjustment high before, that could easily caused your pump failure. Not setting to 3300 psi could kill your new pump.

Re: Our Bobcat Restoration 9/30/2014 6:28:48 AM   (Total replies: 0)
Nice DuPont overall. Looks nice, but no offense, I do not trust any machine that had been repainted. It almost always is hiding mechanical problems.

Re: Want to buy a t180 or t190 10/6/2014 2:00:03 PM   (Total replies: 0)
By 2006, I think it should be 66 HP, early ones were 56. Engine is pretty much bulletproof, just don't over heat it. As for the codes, it may just need calibrating. If it has speed sensor codes, bobcat got away from using speed sensors which I think is dumb. A controller update and unplugging the sensors is generally the fix for speed sensor codes now a days. Anyway you dice it, a dealer should look at the codes. The a/c probably has a pain in the ass to find pin hole in.

Re: Want to buy a t180 or t190 10/7/2014 2:54:26 AM   (Total replies: 1)
To check track tension, pick the front of the machine up with the bucket. Check for a finger width of dddrop at the second to last roller. Add grease to the tensioner as needed. FYI, the service manual will not tell you anything in regards to the service manual. That info is in a different manual.

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