[Lil Giants]

1. 12v

The 12k rpm is probably what the brushless option might run @ on 12v. The brushed motor is about 6000rpm. The brushed motor is a Johnson.

The motor works fine, not overly efficient, but it'll likely outlast your model. I have one (motor & pump) with likely more than a thousand hrs on it.

2. hopefully you haven't touched the "big set screws" at all? They are there to keep the plunger centered till you get your servos in place. The exact placement may have been lost during shipment & if so? then the thumb screws come in handy to fine tune "center" & you can place your servo exactly. If the servo is a bit off when trying to screw to valve block, pull servo horn out of eccentric roller & rotate modified servo horn 180 degrees.

Obviously, but I'll say it anyway, you'll have to run your pump, make the oil flow to fine tune center on each valve. Once you're happy with the placement of your servo, remove the thumb screws from the valveblock.

And for 1st start up of your hyd system, run pump on 7.2v.. the slower speed will create less foam while you're filling your cyls & squeezing out the air. The reservior will need to be filled 3 -4 times while you're doing this, keep an eye on the oil level while you cycle each valve independantly.

3. not really sure what you're talking about.. it's the bearing'd roller that rides on the plunger rod.