On my Kubota L2900 the tachometer needle is way below zero.it works but can't be accurate.is there anyway to set the needle to zero rpms.
Tachometer not on zero?
- Thread starter garrettohio
- Start date
Runs With Scissors
Well-known member
Equipment
L2501 TLB , Grappel, Brush Hog, Box Blade, Ballast box, Forks, Tiller, PH digger
I really don't know, but if it is "cable driven", maybe replacing the cable would help?
Kind of a shot in the dark, but I have heard they are only about 30 bucks.
Never heard of actually "calibrating" or "zeroing" a Tach, but maybe if you pop it out and look on the back there might be some sort of "adjustment screw".......Again a total shot in the dark
GreensvilleJay
Well-known member
Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
if this is yours....
once removed from the dash, use some squarestock, screwdriver, etc. in the where the cable end goes, then carefully rotate the needle to 'O RPM'. May take 2-3 tries to get it right.
This is one of those repairs that takes longer to explain than to actually do it.....
Jay
Kubota L2900DT (Dual Traction 4wd) Parts Diagrams
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once removed from the dash, use some squarestock, screwdriver, etc. in the where the cable end goes, then carefully rotate the needle to 'O RPM'. May take 2-3 tries to get it right.
This is one of those repairs that takes longer to explain than to actually do it.....
Jay
This is an intellectual curiosity question.
Why would doing this make any difference? What happens if one follows this procedure, and then turns the input to the tack more? Does it still stay on zero.
Reason I am wondering is because every time the engine is started the tach input shaft is turned, just like if you do it manually.
No clue on how mechanical tachometers work. Thus the question...
There are smart phone aps which replicate a strobe tach so this would allow you to check actual engine rpm.
Search for the app StrobeLight tachometer app on the iPhone or Android. It uses the pic flash led on the iPhone for the strobe light. Paint a white line on any shaft, start the app, point your phone at the shaft and you have the perfect instrument for measuring rpm of anything that spins!
Dave
