hi mate
yeah no worries
first off is it a sanden pump and does it look like mine?
secondly, if its an orbital piston type stylee pump which has about 7 small pistons on an orbital drive plate, then it should be same/similar
third, take the back plate off the pump with the obvious bolts, and remove the valve plate (this is from memory btw) and then before too long you should see the pistons
theres some flimsy gaskets etc so be dead careful
you are looking for a drilling that goes between the the air side of the pistons, through to the gearbox which is basically the back side of the pistons and all the other gubbins
this is so that oil from the refridgerant can get through into the gubbins and keep them lubed
however, we are pumping air not refridgerant so thats not gonna happen
you need to find this little hole (about 3mm) and block it up
either drill and tap it, or use some epoxy or sealant
whatever, as long as it wont come out
not the end of the world if it does, but youll get oily air and thats bad.
anyway so once that hole is blocked, put all the stuff back together, and then remove the plug in the side of the gearbox area
turn the pump upside down etc to drain any oil out of it that is swilling around, and then sit it on the bench and jam your grease gun in the hole, and fill the gearbox full of high temp lithium grease
swivel grease could be another good shout but its tried and tested on regular high temp grease
anyway so once its full, plug back in and away you go
they are quite noisy (read:kinda scary) when you fire them up so try not to be alarmed but by jove do they pump some air even on tickover
i havent yet but i will be doing tomorrow and you should do the same, check the gubbins box after a reasonable amount of use and refill with grease where necessary as no doubt it will have melted/spread out etc
but yeah other than that pretty damn simple, 12v supply to the clutch wiring from your pressure switch, could not be easier!
