JVC HR-D470U Issues

[vortalexfan]

Hello everyone, recently I had acquired a JVC HR-D470U 4-Head Hi-Fi VCR (the one that the tape loads in sideways, and that had a Zenith version of it that was mono) and I had to swap drive belt out for the tape loading mechanism that loads the tape into the tape heads and when I went to put the machine back together I unfortunately messed up the timing for the loading mechanism, and I'm trying to figure out how to get the mechanism so that it will load the tape into the heads and not shutdown, and I'm trying to find a service manual for this VCR which there are several sites that have a free download but they want me to turn off my adblocker software but I can't get my adblocker software to turn off (AdBlockerPlus used to have a way to temporarily turn it off, and then turn it back on again, but it doesn't seem to have that option anymore.)
Does anyone have any idea how this VCR's tape loading mechanism is supposed to be timed (like are there timing markings that are supposed to be lined up a certain way) that you could mark out for me on a diagram or does anyone have a service manual that they could scan the page pertaining to the tape loading mechanism that they could post on here for me?

Thanks in advance.