Auto Meter 5780 - Manual

2650-1139-00 Rev. A
QUESTIONS:
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s),
please contact Auto Meter Technical Service at 815-899-0801.
You may also email us at [email protected].
Additional information can also be found at http://www.autometer.com/tech_faq.aspx
Calibration
IMPORTANT: This tachometer is factory calibrated to
operate on 8 cylinder engines. For 4 or
6 cylinder engines, it is necessary to
make the proper adjustments to adapt
this tachometer to your cylinder range.
NOTE: Calibration changes do not apply to the Jr. Dragster
tachometer. The Jr. Dragster tachometer is calibrated
to operate only on Briggs & Stratton engines.
Figure B.
4 CYL. - 2 Pulse, Switch One up, Switch Two down
6 CYL. - 3 Pulse, Switch One down, Switch Two up
8 CYL. - 4 Pulse, Both switches up
If you are unsure of your vehicle’s pulse(s) per revolution
or specific calibration requirements, contact Auto Meter
Technical Service Dept. at (815) 899-0801, or go to
www.autometer.com/hp/tectips for information.
Switch is not visible
from from this angle,
shown for location
only.
Gently pry off black
access cover. Access
switch through light
access hole.
(Angle view through access hole)
Figure B
1 1 2 2 1 2
4 CYL. / 2 PULSE 6 CYL. / 3 PULSE 8 CYL. / 4 PULSE
UP DN DN UP UP UP
To change the tachometer calibration, access to the inner case
is necessary. Remove the two acorn nuts as shown in figure A
and carefully slide the cup of the tachometer back in order to
access the inner case. Locate the switch access hole on the
inner case. Use a small screwdriver or an unwound paper clip to
change the switch settings. Move each of the two switches to the
proper cylinder selection according to the diagram illustrated on
the right.
NOTE: This tachometer has an air core meter. With power off,
It is normal for the pointer to leave zero. When power
is applied, the pointer will move to the correct position.
Figure A
Acorn
Nuts
Twist In light socket.
(Under black
access cover)
Figure C
Mounting
Light Replacement
3 3 /
8
" SIZE
SHOWN
The special design of the tachometer base allows for a variety of mounting possibili-
ties. Loosening the hex screws at the mounting base allows the tachometer to be
rotated in the strap. Also, this design allows the tachometer face to be angled forward
or backward for better viewing. Attach the base using screws provided or some other
fasteners.
See figure C. Gently pry off black plastic access cover to access the twist-in light socket.
Rotate twist-lock socket counterclockwise using needle nose pliers and remove. Replace
old bulb with GE 194 bulb.
INSTALLATION INSTRUCTIONS
TACHOMETER