Can Mitchell Ammeter Be Repair
10-02-2020,08:11 PM #ane
Tach is off, who tin can recalibrate?
I recently bought a super cub and the tach reads college than what the motor is truly running. This night we placed a tach that counts prop blades on the dash and compared it to the i in the plane and had a departure of 350rpm. Installed tach read 2700 and the portable tach read 2300-2350Who practise you know that could recalibrate accurately it and get it back to the states speedily?
Is recalibrating the best route?
Appreciate the help!
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ten-03-2020,10:13 PM #17
I'll have to check that out.
Originally Posted by Charlie Longley
Well nosotros can agree to disagree. Kind of reminds me of the inverted Schweitzer tow hook debate on Recreational Aviation Soaring.
Charlie
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Life'due south tough . . . wear a loving cup.
10-04-2020,09:55 AM #23
"Optimism is going subsequently Moby Dick in a rowboat and taking the tartar sauce with you!"
ten-05-2020,08:43 AM #37
What'southward the difference whether I remove the tach for repair at an automotive store and reinstall information technology or go pull one off the shelf/out of a panel for installation? I'g signing that I have checked the unit for proper and safe operation.
Big difference between signing off a weld and an musical instrument repair. Look at the regs.
The paragraph you cited from Part 65.81 just says I tin can't perform an instrument repair. If a fed questions me about my tach repair sign off, I will point out that the repair was washed at a store equipped to do those repairs and that I signed off that I checked the tach for safety and proper operation. In that location are no repair stations that I'chiliad aware of that still work on these (but similar the oil pressure, oil temp, and ammeter cluster in Cessnas). The failure of a mechanical tach is not a rubber of flight issue. Checking for right operation of a tach requires no specialized or not standard equipment.
So how is this whatsoever different than signing off a repair weld that I or a not A&P welder didn't perform? What reg?
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Life'due south tough . . . clothing a cup.
Source: https://www.supercub.org/forum/showthread.php?58250-Tach-is-off-who-can-recalibrate
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