GU Patrol Front Wheel Bearings

Its the same as a car. You shouldnt really have play as you mention side to side.

The wheel should rotate without any thing holding it back, or your bearings are too tight.

On the Gregories manuals, since i found out that one had wrong capacities for oils, I wont believe anything they say.

as they are a tapered bearing, sometimes when you seat them and tighten up the nut, they appear to be seated correctly and there isn't any free play.

However once the vehicle starts moving, the bearings seat themselves properly, resulting in there being some free play.

this could be the problem.

An interesting little side light on this is that the bearing lock washer has two phillips head bolts in it to hold the bearing lock washer. Mine have vibrated loose and dropped out on one occasion, this allows the bearing lock washer and nut to come loose.

My gregories gives the isntructions to tighten the lock nut to 167 to 196 Newton Metres then rotate the hub several times, then loosen locknut so that it can be turned by hand, then tighten to 3 to 5 Nm and rotate the hub several times in both directions then re tighten to 3 to 5 Nm. Then istall the lock washer and retaining screws.

same happened to my 2000 GU ZD30...

I had the hubs off as my GU's front wheels worked loose and shagged the studs. After it was FIXED, i drove about 80km down the road to find both front wheels where loose again, except it was caused by the lock nut being loose. Tightened it up and away i went.

I'd always check it a few km's after driving to ensure it is still A OK...

If you preload them properly when reassembling and then by the time you do load em a bit more by lining the screw holes up,,, you should have no "clonk clonk clonk" at all whilst testing them by hand...