Problem with the Grabber Claw Not Picking Up?

If you maintain grabber crane machines, we suggest you keep spare working looms in stock so that you can swap them in to check the working order of those on the machine. Although looms can be checked with a multi meter, it is a time consuming process.

Things to check when your claw is not grabbing...

Firstly check that the flex and looms are all connected securely.

Check the Curly Flex, the Side to Side Loom and the Front to Back Loom.

Next test the curly flex wires for continuity. Unscrew the connectors and check the wires with a multi meter. It should provide some resistance.

Next unplug the Side to Side Loom either end. Test the continuity of each wire in the plug.

To do this you test each of the connections within the plugs with a multi meter. Test number 1 connection either end, then number 2 connection and so on until they are all complete.

Next unplug the Front to Back Loom either end and repeat the process again, testing each of the pins. All the pins are numbered and so it is easy to check you are testing the right pins.

Next check the fuses on the PCB.

There is a 5amp grab fuse and a motor fuse. Take off the fuse cover and then remove the fuse from the clips. Test each end of the fuse at the same time with the multi meter. If the multi meter beeps, then the fuse is fine.

Repeat this process for each fuse.

When fitting the fuses back, make sure you squeeze the clips in slightly together first, this will ensure the fuse is snug and connecting properly. Replace the fuse cover.

Next check that the hyper coil and flex is not damaged. Re-solder wires that are not connecting or replace the coil unit if it is burnt out.