Either the Hydac valve on the front LG didn’t fully seat mechanically ( it’s normally closed when power is off via a spring ), you have air in the system , or you have an internal leak on one of the front LG
The LG are connected in tandem so what halogens to one happens to the other
I’d first cycle the front LG 3 to 5 times to purge any air out..allowing pump motor to cool off between cycles
Verify no external leaks at any of the JiC 37 fittings for the LG themselves as well as at the extend and retract manifolds
Check the manual over ride screw located on the end of the Hydac valve on the front LG..it should be snug CCW..
If issues persists then it’s a simple test to perform an internal leak bypass test
https://lci-support-doc.s3.amazonaws...cd_0001910.pdf