I'm not very familiar with the newer machines. I was originally called out for a grapple cylinder leak, I resealed and replaced the 2 hoses for the aux hydraulics. after that the auxiliary worked. Then I did a PM service on it and replaced the drive belt, tensioner spring and pulley. Now the auxiliary hydraulics don't work. As soon as you start it up you get M4404 (Auxiliary Controller No Communication) on the display. All the fuses are good and I re-lifted the cab and tugged on all the...
S650 Auxiliary hydraulics not working
S650 Auxiliary hydraulics not working
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