550 battery cover screw

[Keith Chapman]

I have just got myself a Zumo 550, the battery cover is held on by a tiny torx screw, nothing I have is small enough. Knowing that a battery removal will probably be needed at some time in the units life, can anyone tell me what size torx I need.

There was a small allen key supplied in the box but that fits nothing else that came in the box

 

[bose]

I have just got myself a Zumo 550, the battery cover is held on by a tiny torx screw, nothing I have is small enough. Knowing that a battery removal will probably be needed at some time in the units life, can anyone tell me what size torx I need.

There was a small allen key supplied in the box but that fits nothing else that came in the box

Just pop along to halfords as and when it needs changing but unless your using it daily it could go for many years if only getting used occasionly

 

[Jon]

I have just got myself a Zumo 550, the battery cover is held on by a tiny torx screw, nothing I have is small enough.

You sure it's torx Keith? Mine's an allen key type (see below) and it needs a 2mm allen key to unscrew it.

 

[Keith Chapman]

cheers Jon, 2mm allen fits, I have had a magnifying lens out and it still looks like a torx head. I guess it must be a trick of the light.

 

[DavidJames]

Just pop along to halfords as and when it needs changing but unless your using it daily it could go for many years if only getting used occasionly

Replacing the battery is not the issue - having to remove the battery becuase the Zumo locks up will happen so make sure you carry the allen key with you

 

[John Armstrong]

cheers Jon, 2mm allen fits, I have had a magnifying lens out and it still looks like a torx head. I guess it must be a trick of the light.

I'd guess on it being an imperial allen jobbie being as the merkins seem to like working in fractions and not easy peasy metric sizes.

2mm is just over 5/64 ths of an inch.

 

[the beer hunter]

I'd guess on it being an imperial allen jobbie being as the merkins seem to like working in fractions and not easy peasy metric sizes.

2mm is just over 5/64 ths of an inch.

My 2mm allen key measures 2.01mm

My 5/64 measures 1.95mm

I'd go with 2mm to save rounding off the head.

Just a thought Keith but your allen head bolt probably looks like a torx because someone's used a 5/64 allen key on it & chewed it up.

 

[John Armstrong]

My 2mm allen key measures 2.01mm

My 5/64 measures 1.95mm

You need to keep an eye on your allen keys as the metric one is stealing material from the imperial one