Why don't Winch up and Extension out work when the crane is stowed on my stellar labs 7621?
If the Winch up and Extension out functions do not operate while the main boom cylinder is fully retracted or the crane is stowed in the boom rest, raise main lift cylinder slightly, this condition is due to the safety systems of the crane.
Why aren't Winch 'Up', Main Cylinder 'Down', and Extension Cylinder 'Out' working on my stellar labs 7621?
If Winch “Up”, Main Cylinder “Down”, and Extension Cylinder “Out” are the only functions that don’t operate on your Stellar Labs Construction Equipment, consider the following: * Make sure that the anti-two block weight and chain on the end of the boom are straight so they slide easily along the wire rope cable. * Make sure that the limit switch is working properly. Disconnect the two wires connected to the limit switch and tie them together. If all functions operate, replace the limit switch. * Make sure that the cord for the cord reel is undamaged. Check the continuity of the cord. Disconnect the cord reel from the crane harness and bypass the harness connection. If the crane operates properly, replace cord reel.
Why is my Stellar Labs Construction Equipment crane operating slowly?
If your Stellar Labs Construction Equipment crane is operating slowly, consider the following: * Ensure the crane is receiving the recommended hydraulic flow. * Check the hydraulic fluid level in the reservoir and add fluid if needed. * Check the hydraulic fluid temperature. * Inspect the valve bank orifice for any blockages; replace the orifice if it's plugged (contact Stellar Customer Service for instructions). * Make sure the proportional valve is receiving 12V power when fully engaging the transmitter trigger. If there is no 12V power while pulling the trigger, check for loose connections inside the transmitter or replace the handle trigger assembly. If the proportional valve is receiving 12 volts, loosen the solenoid holding nut and check to see if the solenoid coil is magn...
General| Brand | stellar labs |
|---|---|
| Model | 7621 |
| Category | Construction Equipment |
| Language | English |
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