Auto Meter 6856 - Manual (Page 3)

FoR SERViCE SEND To: AUTO METER PRODUCTS, INC. 413 W. Elm St., Sycamore, iL 60178 USA (866) 248-6357
Email us at [email protected]
2650-1244-00 Rev. B 3/30/09
SERVICE
For service send your product to Auto Meter Products, inc. in a well packed shipping carton. Please include a note explaining what the problem is along with your phone number. if you are
sending product back for Warranty adjustment, you must include a copy (or original) of your sales receipt from the place of purchase.
© 2009 Auto Meter Products, inc.
12 MONTH LIMITED WARRANTY
Auto Meter Products, inc. warrants to the consumer that all Auto Meter High Performance products will be free from defects in material and workmanship for a period of twelve (12) months from date of the
original purchase. Products that fail within this 12 month warranty period will be repaired or replaced at Auto Meter’s option to the consumer, when it is determined by Auto Meter Products, inc. that the product
failed due to defects in material or workmanship. This warranty is limited to the repair or replacement of parts in the Auto Meter instruments. in no event shall this warranty exceed the original purchase price of
the Auto Meter instruments nor shall Auto Meter Products, inc. be responsible for special, incidental or consequential damages or costs incurred due to the failure of this product. Warranty claims to Auto Meter
must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original purchaser of product and is non-transferable. All implied warranties shall be limited
in duration to the said 12 month warranty period. Breaking the instrument seal, improper use or installation, accident, water damage, abuse, unauthorized repairs or alterations voids this warranty. Auto Meter
Products, inc. disclaims any liability for consequential damages due to breach of any written or implied warranty on all products manufactured by Auto Meter.
Dial light:
For wedge base bulb replacement, order Auto Meter
3219 or gE 86 bulb. Turn socket 1/8 turn counter-
clockwise to remove. Used on selective models only.
Display button: Depressing red button
activates pointer to display Shift-Set RPM
while setting or verifying shift-point.
1. Push and hold red button. Pointer
will display the tachometer’s shift-
point and the Shift Lite will activate.
2. To set your desired shift-point,
continue depressing the red button,
then push and turn the Shift-Set
knob until the pointer reaches the
desired RPM.
3. To double check, push red set
button-- pointer will indicate your
shift-point.
4. During normal tachometer
operation, the Shift-lite will activate
at the exact same RPM that the
pointer indicates when red set
button is depressed.
Shift-Lite: For shift-Lite bulb replacement, remove three screws on light.
The bulb, located in the rear section, is easily removed by pushing and
rotating it counter-clockwise. Replace with #1076 automotive bulb.
TACHOMETER
TM
Model
3904
Shown
Shift-Point
Selection
Shift-Set: Depress the Shift-Set knob
and turn the knob until the pointer
indicates the desired shift RPM. This is
exactly where the Shift-Lite will turn on.
Erase
Recall
Set
Installation Tips
1. Mount tach base firmly to reduce vibration, wear and tear.
2. Avoid contact of the tach with windshield or other objects to
maintain rubber shock absorbing feature.
3. A 12 V power source MUST be used to power this tachometer.
A 12 V motorcycle battery is a good alternative for cars without batteries.
A battery with minimum 5 amp hour rating is recommended.
4. Avoid connecting tach power and ignition power leads together.
Use separate battery leads for ignition and tach to avoid excess voltage drop.
5. Wherever possible, solder wire connections and avoid crimp-type connectors.
This will minimize loose connections that could cause problems later.
6. Make sure you have a good ground to engine and battery negative terminal.
7. Wire installations should be neat and tied down to prevent tugging
and fraying of wires at connections.
Trouble Shooting
if your tach does not function properly after installation check the following:
1. Are all electrical connections correct and tight?
2. if neither tach nor dial light work, check ground and 12V power connections.
3. Disregard tach readings that occur before engine is started.
4. if problems persist try tach on another vehicle with the same ignition.
5. For changes in ignition type, contact a service representative from Auto Meter.
6. Ignition manufacturers recommend that the ignition and coil be matched according to
criteria which they establish (often that the ignition and coil be products of the same company).
if they are mismatched, minor malfunctions may occur, showing as erratic readings on the tach.
Mismatching coil and ignition types is often the cause of incorrect tach performance.
Model
3906
Shown
Note: For model #3903 with internal Shift-Lite, with
key on, engine off, pointer will indicate shift set point.
To adjust turn dial, when pointer indicates desired set
point, stop. Tach will now use set point until changed
The Super Bezel is a registered trademark of Auto Meter Products, inc.
5. Memory Function (For Models with Memory)
3.1 Press “ERASE” button before each race. This clears the memory from your previous run. You are now ready to record.
3.2 Press “RECALL” button to display highest RPM reached. This can be done during or after a race.
Memory is retained even when power to the tachometer is off.
1. Two-Stage Shift-Lite Set Mode (For tachs with two shift-lite set points)
1.1 To enter this mode, apply power to the tach with the engine off (no RPM signal to the tach).
1.2 Press and release the SET button. The pointer moves from 0 RPM to 1k RPM.
This is the indicator for the Low Set shift point.
1.3 Press and release the SET button to review and/or set the Low Set shift point.
` 1.4 Using the “erase” and “recall” buttons, move the pointer to the desired RPM for the Low Set shift point.
1.5 once the pointer is positioned at the desired RPM, press & release the SET button to exit low set mode.
1.6 Press and release the “erase” button. The pointer moves from 1k RPM to 2k RPM. This is the
indicator for High Set shift point.
1.7 Press and release the SET button to review and/or set the High Set shift point.
1.8 Using the “erase” and “recall” buttons, move the pointer to the desired RPM for the High Set shift point.
1.9 Once the pointer is positioned at the desired RPM, press & release the SET button to exit High Set mode.
1.9 To store the settings you must push & release “recall” until pointer reaches zero.
NOTE: If the Low Set shift point has been changed, the High Set shift point will also be
changed to the same value.
2. Two-Stage Shift-Lite Application (For tachs with two shift-lite set points)
2.1 To accomplish changing the shift setting, a Blue lead is brought out of the tachometer to a switch that the
driver may manually push. (See diagram in the wiring section.)
2.2 When the switch is closed (pushed), the Blue lead will be connected to 12V Power and the Low Set mode
will be in effect. When the switch is open (released), the High Set mode will be in effect.
2.3 Some racers mount the switch on the transmission or shifter such that when in first gear the switch is
closed, thus placing them in Low Shift set mode. When shifted out of 1st (Low), the switch returns to open
and places the shift point in the High Set mode.
NOTE: If you prefer to use only one shift point, do not connect the blue wire as shown in the diagram in
the wiring section and only set the High Shift Point.