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HiCustomer does the machine travel fine but the arms don't raise and lower, or does the machine not work untill it has warmed up at all? Let me know and we can go from there,thanks,
the machine works fine but the arms don't raise or does it real slow and when it raises won't go down and bucket doesn't change angle either, until I have been playing with the pedals for like 15 minutes
Are all of the BICS lights, such as seat bar, traction lock, and Lift/Tilt illuminated on the left hand panel?
You may want to inspect the BICS solenoid valve stem on the control valve to be sure the valve stem is not stuck or sticking closed.
Follow all Safety and Maintenance Procedures as illustrated in the Operation and Maintenance Manuals for your machine! Remember to click ACCEPT.
where is located this solenoid, if I remove the solenoid what should i do? or how I test it, if you could send me a website where i could get the info that I need, or email me diagrams
The solenoid is on the main hydraulic control valve on the right side of the inside of the machine, under the cab.
I believe the solenoid itself is ok since you did not say there are fault codes beeping at you. Is this true?
I think the solenoid valve stem may not be opening when it should, to activate the hydraulics fully.
Is this machine equipped with ACS or SJC controls? If so, there could be a calibration problem with them as well. Your local dealer would have to test/calibrate the controls to troubleshoot that type of a problem.
there are no codes, what's acs or sjc controls.
what is the function of the electrical part of the solenoid, foot linkage should open and close valve manually, don't you think it would be related to hydraulic pump,
ACS is Advanced Control System, that lets you switch between hand and foot control of the lift and tilt. SJC is Selective Joystick Controls, that is hand controls only for drive, and lift/tilt, but lets you select between H pattern or ISO pattern controls.
If a pump is failing, it fails and stays that way. It does not act up a little here, then work correctly for a while.
The BICS solenoid is what activates the BICS (Bobcat Interlock Control System) which is what prevents the lift and tilt from moving when the seat bar is raised, or the cab door is open, etc. The BICS system locks the lift and tilt using PD10 lock valve cartridges on the main control valve. The solenoid provides pilot pressure (charge pressure from the hydrostatic pump) to unlock the PD10 lock valves to allow the lift and tilt to operate when you enable the system.
You said the boom will raise slowly, and will not come down and the tilt will not move. This sounds a lot like the BICS system not fully activating.
If you are not comfortable, or familiar with the system, the best advice I can give is to have your local dealer take a look at the problem.
is the any sensor that checks if the seat bar is in the right position or the cab, is that what I should refer to?
do you think that just the electrical part of the solenoid is preventing from operating the control valve?
is this solenoid mounted on the valve that the foot linkage goes to?
if a remove the solenoid is there any special care that I shoud take when removing this valve?
I do not think the problem is electrical since there are not any fault code occurring. The controller monitors the electrical portion of the systems and can detect faults with it.
Yes the stem is on the hydraulic control valve that the pedal linkages are attached to.
When removing the stem for inspection, follow all safety precautions as illustrated in your Operation and Maintenance Manual. Keep the boom down if possible, and if it must be raised while working on the machine, the boom support devise absolutely MUST be installed to support the boom from falling and causing injury.
I would inspect the BICS valve stem, and the two cartridge valves located next to it. Inspect for debris holding them, or for their plungers to be sticky instead of moving smoothly. You can press on the plungers with a small tool to feel their operation.
Are there any active fault codes right now?
The aux flow is controlled by two more solenoids on the control valve. One at the top rear, and one at the top front. Were they possibly disconnected from when you were doing other work on the control valve. Check their connections?
Not trying to insult you with this question, just trying to rule out the simple stuff. Is the Max flow light on the panel illuminated, and did you press the trigger on the right handle?
Do you hear aux pressure load when moving the thumb switch on the right handle?
Yes it is in the main control valve. The control valve has three main spools. Lift, tilt, and auxiliary.
If the aux spool ever sticks out of neutral for any reason, with no attachment connected, it could cause the lift and tilt to not work correctly. Usually it will cause the lift and tilt cylinders to not want to retract (boom down, bucket roll back). They would still extend (boom raise, bucket dump) but maybe a little slower than usual.
Fault codes would indicate an electrical fault with the aux control system.
If the aux spool is hanging up, it is likely to have scored the bore in the valve body and will require a complete new valve. A new valve is cost competitive with the labor and parts for rebuilding it anyway. New is the way to go.
After the new valve is in place, fill the reservoir to full, start the machine and run at low idle, and slowly cycle all functions several times, slowly, and with no load, to purge air in to the reservoir. Keep an eye on the oil level and add as necessary to keep it at the acceptable level.
I reveived an email message that I have free follow ups, it that true?
I didn't mean to finish the question but i pushed on the wrong button