Owner manual

2650-1142
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 [e-mail].
Additional information can also be found at http://www.autometer.com/tech_faq.aspx
8 Cylinder: No adjustment necessary.
6 Cylinder: Clip BROWN wire loop only.
Insulate with electrical tape.
4 Cylinder: Clip BROWN and ORANGE
wire loops. Insulate with elec-
trical tape.
Model 4594 only: After clipping necessary
wire(s) and insulating them,
push wires into hole and use
the hole plug to seal the hole.
Tach Calibration with Wire Loops
MOUNTING
In-Dash Tachs
INSTALLATION INSTRUCTIONS
1. Cut a 3
3
⁄
8
" dia. hole in the dashboard for the tachometer.
2. Drill a
3
⁄
8
" dia. hole in the rewall where the tachometer wires
will be routed. Place rubber grommet in hole and route the
green and black wires through to the engine compartment.
3. Connect the tachometer wires as shown in this instruction.
4. Secure the tachometer in the dashboard using the brackets,
nuts and lockwashers provided.
Clip necessary
wire loops.
Do not push
wires into case.
Clip necessary
wire loops.
Model 4594 only
1
2
O
N
1
1
2
2
1 2
4 CYL. / 2 PULSE
6 CYL. / 3 PULSE 8 CYL. / 4 PULSE
DN DN
DN UP UP UP
The switch to change tachometer
calibration is inside the tachometer
and is accesible via the light hole on
the back of the tachometer.
The switch is located to the left of
the light socket. Adjust switch with a
small screw driver or unwound
paper clip.
Tach Calibration with Switches
8 CYL: Both switches up.
6 CYL: Switch One down, Switch Two up.
4 CYL: Both switches up.
Light hole with
rubber plug
removed.
Light
Switch
Unwound
paper clip
3
3
⁄
8
"
2
1
⁄
8
"
5"
Rubber seal on model 4594
Pedestal Tachs
The special design of the tachometer base allows for a
variety of mounting possibilities. Loosening the hex screws
at the mounting base allows the tachometer to be rotated in
the shock strap. This will also allow the tachometer face to
be angled forward or backward for better viewing. Attach the
base using screws provided or some other means, such as
pop riveting.