NORAC UC5-BC-AGCO-RMC - Manual (Page 43)

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5.5.5. The boom function won’t move
1. The pressure and tank hoses may be installed backwards.
2. The “A” and “B” lines may not be installed on the same station.
3. The valve may be stuck. Manually operate the valve in both directions using the Manual Override
Test. Perform the Boom Function Test again.
4. The coil may have failed. Try swapping the coil with one from another known working valve.
5.5.6. The booms operate backwards
1. Ensure the “Raise” lines are connected to the “B” ports and the “Lower” lines are connected to the
“A” ports.
2. Ensure the electrical connections are correct.
3. Ensure the valves are configured (mapped) correctly.
5.5.7. The booms move too fast or too slow
1. Ensure the orifices are installed correctly. If the “B” port is backwards, the boom will move up slowly
and down fast. If the “A” port is backwards, it will raise slowly and may chatter when going down.
2. Ensure the orifices are not jammed in the port. Try removing and reinstalling the orifices.
3. Check to see if the filter is plugged. The filter can be removed to test, but it must be reinstalled.
4. Ensure the correct “A” and “B” port NORAC fittings are used. If the wrong fittings are used, the
floating orifice may not be operating correctly.