the hub of the problem

[hech]

A sweet little old lady hubbled up to me the other day, smiled kindly, and asked me to repair her little old bike. Apparently the back wheel didnt, well, turn anymore and she demanded explanations,
So I wheeled it the 5 miles home and amazingly the hub freed itself again so I could even peddle. However when I engaged the power switch there was no response from the motor and the battery lights went out.
So I booked it into the E-Bike Lab, took some pictures of the damn thing and hoped someone here at the High Council of Ebike Lab Technicians might come forth with advice.
The controller seems to have shorted and trips the battery when the contacts touch, so I fitted a similar one whichis fine and turns the hub partially. But I think something is wrong with the gears. Never been this far into a hub before and though I removed the cover plate ok, am having extreme trouble unscrewing the philips head screws on both sides. Any help would be greatfully appreciated.



Oh, and do I need a splined freewheel remover tool to fit over the cable and axle to release the cogset?

 

[oigoi]

One trick I have found which works well for removing countersunk bolts like those cross head ones is to give the head of the bolt a few taps with a hammer (or a hammer and a pin punch) before trying to unscrew them. Can make that kind of bolt come out a lot easier

 

[Deleted member 4366]

You don't need to undo those screws. On the one side, they hold thst big gear to the side-plate. It won't need any attention other than clean and grease.

The other three hold the clutch together. You remove the clutch as a complete assembly. They sometimes have a circlip on the axle retaining them, but most times not. The clutch slides off the axle as a complte assembly, but it may need a three-legged puller to shift it.

You don't need to take the gears off the side-plate either unless the free-wheel doesn't work. The whole side-plate should slide off the axle as you feed the wire through. You can support the sideplate on blocks while you tap the axle end with a soft mallet or hammer and block of wood to get it started.