[Alc]

Does anyone know what those 2 straight slotted ( plugs ?) are for , located between the work ports on the top of the valve ?

 

[Alc]

I wonder if those plugs are for " Load Checks " My PK doesn't have them and one time I was lifting a wood chipper off a pickup the loader arms lifted it but when I tried tilting the bucket back instead of tilting back there wasn't enough psi to tilt back the bucket just fell forward ( since then I had to reset the relief valve ) Will my angle cylinder acted like you described when the piston was broken inside , you would want to move one direction and it seem to want to go in the other , a seal would act like that too ?