Altimeter overhaul/replacement

[helitim]

Headed home this AM, my altimeter lost the ability to adjust the pressure setting per the Kollsman window. The knob rotates freely with no change in the setting.

Any suggestions to trouble shoot or somehow repair or, just replace/overhaul the unit? If the answer is repair/replace, who would you suggest for a shop?

Thanks, Tim

[The-sky-captain]

A while back my DG did the same thing and after trouble shooting it was just a loose Allen screw that holds the knob to the bar.

[helitim]

Aha, the KISS method of aircraft maintenance. I will double check for such, just in case. Thank you

[ryoder]

Aircraft quality instruments sold me a very nice refurbished DG and they were very helpful over the phone.

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