Can Bic control be added to t250 Bobcat that has switches on joy stick but no overhead switch. Does have a vacant overhead slot where you could install one. What else would have to be done?

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You can add a board on Huawei MA5600 in the following two ways:
· Adding a board offline: Run the board add command to add a board to an vacant slot (in this case, the system generates the "Board Fault" alarm). Then, insert a board to the slot (in this case, if the type of the inserted board is the same as the type of the board added offline, the system generates the "Board Recovery" alarm; if the type of the inserted board is different from the type of the board added offline, the system generates the "Type Mismatch" alarm).
· Automatically discovering a board: Insert a board to an vacant slot (in this case, the system displays a message indicating that a board is automatically discovered, and the board is in the auto-find state). Then, run the board confirmcommand to confirm the board that is automatically discovered.

This way is also can be adopted by Huawei MA5616 equipment.

excavators work in very adverse conditions so I would be looking for corroded wire connections, loose connections or problem joy stick control

have a load test done on the battery to check for a dead cell. IF the battery is dead then there will not be enough current to work the electronic controlled hydraulic valves . I imagine this machine has joy sticks for controls and not linked levers to the valves.

Like many overhead projectors, the Buhl 2900 can accept TWO projector bulbs (the operating one plus a spare). Make sure you inserted your replacement bulb in the slot for the operating lamp. There is a slide lever on the front of the unit that allows you to quickly switch to the spare lamp. Turn off the projector and move the slider to switch to the other bulb slot. See if that does the trick. Good luck!

Doesn't come standard dealer sells kit

remove the memorys and check the memory slots for any damaged pins .test the memory one by one on 2 slots(power off place one memory on slot1 and power on then do that procedure on slot2 ) if the laptop boot, one memory or one slots have problem and you can work with another one ,if you didnt see the boot screen at all try to reset the Bios .
if still dont work have to repair or replace the mainboard.

The overhead console with the heads up control in it is able to be carefully pried out by the little slot/opening on the back edge of the panel the switch is in. Use a flat screwdriver and slowly work it out by gently prying on the little retaining tab up in that slot. It is a small pain to work the panel out once it swings down due to all the other switches in there as well. The homelink module does slightly get in the way.