Zumo bearing replacement procedures

General discussions on Elite trainers

Moderators: Elite Admin M, Elite Admin S

johnson.andrew
Posts: 3
Joined: Wed Dec 25, 2019 10:05 pm

Zumo bearing replacement procedures

Postby johnson.andrew » Fri Dec 30, 2022 12:10 pm

Hi
i have had a Zumo trainer since 2019 and it has served me well. In fact i have been using it about 5 times a week in all the time i have had it. However, recently it has started making a rubbing noise caused by the main drivewheel (the one the cassette / bike is mounted to) rubbing against the inner casing. Having stripped the casing off i can clearly detect play in the bearing on this and the tensioner pulley. I think it is reasonable , given the usage, that the bearings have worn out like this but....

As i am mechanically proficient and have a decent workshop, i would like to replace the bearings but i cannot find any procedure for this. The tensioner pulley is easy and i have replaced the bearing on this already. The bearing i am concerned about is on the main flywheel - is there a procedure available that details how to strip the fly wheel off the shaft? I would be greatful if someone could help as i dont expect this to be fixed by Elite or the dealer under warranty given its age but i would equally not want to replace the whole trainer for want of a couple of bearings.

I would appreciate any assistance on the procedure if possible.
Many thanks
Andrew

PS: I also have a landrover and bearing replacements are second nature to me :-)

johnson.andrew
Posts: 3
Joined: Wed Dec 25, 2019 10:05 pm

Re: Zumo bearing replacement procedures

Postby johnson.andrew » Wed Jan 04, 2023 2:28 pm

For anyone interested, i managed to do this myself just with some simple garage tools. Trainer is relatively easy to strip down and the replacement bearings can be found easily on amazon etc...

I replaced the bearings (2 of) on the main fly wheel and the 1 bering in the tensioner pulley.

Bearing parts:
Tensioner: 6200-2RS
Flywheel: 6004Z

Tools used: Circlip pliers, hammer, sockets for drifts to remove/press bearings, bench vice.

When you undo he tensioner pulley, mark the starting position with a felt pen and count the turns to fully release. When refitting, wind back the same number of turns.

Reassemble and then do a calibration. Works like new. I suspect its not that different for many of the Elite trainers as they seem to share many common components.

PS: None of the above came from Elite, this is purely my attempt to DIY restore my trainer to its original splendour.


Return to “Trainers general discussion”

Who is online

Users browsing this forum: No registered users and 46 guests