D6R Transmission Test

Hello All. Please i'm having problem testing the D6r bulldozer transmission i just repaired using High pressure Air. the gears are not engaging when i put the pressure hose on the valve holes. When i did this with my D8r bulldozer in 2013, it gave me good result. I want to know if this is okay with the d6r transmission as this one is electrical and that of the d8r is manual or is there something wrong in what i have repaired? The number one gear springs just a little and returns back. Or is...

D6R Transmission Test

D6R Transmission Test