Thanks again for the info

alarm108 is 'pedal level_2
this means the brake pedal should not be depressed at power on.
do not have your foot on deadman pedal when turning on the key.
if it is doing this without being on the pedal then check the switches underneath the pedal assy, one is probably hung up or faulty.

Thanks for all the info had a sketchy looking wire I found and repaired now getting a AL108 code kinda got thrown into the mess here with no info as I don't work for cat and they have been no help down where im at

i would check on the wire harness connections to the hydraulic controller, check the LED to see if it is blinking any codes.
Generally it should display any alarm or warning on the display OTHER THAN just NO CONN.
This NO CONN message is just letting you know it has lost connection to one of the nodes. Being you loose hydraulic function i would start there with the hydraulic controller and it's associated wiring. Being an intermittant problem it would be safe to assume there is a loose connection.

Unfortunatly you do not have the option of interactive diagnostics through the dash display since the system in this truck does not incorporate an interactive display unit like the zapi driven 36v trucks do. This system is a sauer danfoss system and they only way you can see an interactive diagnostic is through the BPK handset or the related PC program and correct diagnostic cable.

Now other than checking LED blink codes you can check the wire connections at the key switch as the key switch has been known to cause problems, also the ESTOP connections. The switches are rather delicately made and tend to break easily so be careful handling them. I would also check the switches underneath the floor panel, there are 2 switches there that deal with the startup and power supply input feeds to controllers and brake unit activation/deactivation. These foot switches are also known to give problems.

Thanks for the info ill start there

Post your email in profile. Wires loose at key switch can cause this too. Check for shorts to frame.