➊ millimeters precisely before

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this positive power source MUST
BE UNSWITCHED, but should
be protected with a fuse);
b) the light switch (also after the
fuse in the fuse box); and
c) a good ground location (i.e.,
anywhere you can conveniently
bolt the wire to the chassis of the
vehicle).
2. Connect the appropriate positive (+)
and ground (negative [–]) wires to the
clock and clock lamp socket as shown in
Diagram D.
Wiring the Engine Hour Meter
1. Run wires from the Engine Hour Meter
location through the firewall to:
a) the positive (+) terminal on
the ignition switch (after the fuse
box);
b) the light switch (also after the
fuse in the fuse box); and
c) a good ground location (i.e.,
anywhere you can conveniently
bolt the wire to the chassis of the
vehicle).
2. Connect the appropriate positive (+)
and ground (negative [–]) wires to the
Engine Hourmeter and Hourmeter lamp
socket as shown in Diagram C.
At this point, the installation and wiring
of your new VDO Quartz Clock/Engine
Hour Meter is complete. Turn on the ignition
and the lights in the car and check to
see that the clock/hourmeter and light are
working properly. If they are not, recheck
your wiring.
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Mounting hole dimension = 2¹⁄₁₆" (52 mm)
Diagram A
Gauge dimensions
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Mounting Nut direction
depends on panel width
A: 0 – .4" (0 – 10 mm)
B: .4" – .8" (10 – 20 mm)
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TOP:
VDO’s Spin-Lok ä
Mounting Clamp
LEFT:
ç VDO Mounting Bracket
Diagram B
Mounting using VDO Mounting Bracket or VDO Spin-Lok ä Clamp

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➋ CONTINUE HERE
c) the positive (+) terminal on
the ignition switch.
2. Connect the wires from the alternator,
starter and ignition to the terminals on the
back of the ammeter as shown in Diagram
C.
3. Connect the wire from the light switch
(after the fuse box) and from a ground location
to the ammeter light switch terminals,
also as shown in Diagram C.
At this point, the installation and wiring
of your ammeter is complete. Turn on the
ignition and start the engine to be sure the
ammeter is working properly. If it isn’t, recheck
your wiring.
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PP
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Diagram A
Gauge dimensions
Diagram B
Proper mounting of the VDO Ammeter

Light
Switch
Light
Switch
Fuse
Box
Fuse
Box
Light
Switch
Fuse
Box
Battery
Battery
Hour Meter
Terminal
Hour Meter
Terminals
Optional
Illumination
( )
Clock
Terminals
Optional
Illumination
( )
+
+
Ground
Diagram B Clock Wiring Diagram
Battery
+
Constant
+12v
Ground
+–
Optional
( Illumination )
+ –
Optional
( Pressure Switch)
+ –
Option 1 - Diagram C Engine Hourmeter Wiring Diagram
Option 2 - Diagram C
Engine Hourmeter Wiring Diagram
DO NOT OVERTIGHTEN!
SiemensVDO Limited Warranty
Siemens VDO warrants all merchandise against defects in factory workmanship and materials for a period of 24 months after purchase. This
warranty applies to the first retail purchaser and covers only those products exposed to normal use or service. Provisions of this warranty shall not
apply to a Siemens VDO product used for a purpose for which it is not designed, or which has been altered in any way that would be detrimental
to the performance or life of the product, or misapplication, misuse, negligence or accident. On any part or product found to be defective after
examination by SiemensVDO , Siemens VDO will only repair or replace the merchandise through the original selling dealer or on a direct basis.
Siemens VDO assumes no responsibility for diagnosis, removal and/or installation labor, loss of vehicle use, loss of time, inconvenience or any other
consequential expenses. The warranties herin are in lieu of any other expressed or implied warranties, including any implied warranty of merchantability
or fitness, and any other obligation on the part of Siemens VDO, or selling dealer.
Siemens VDO . http://sso-usa.siemensvdo.com/ . Phone: 1-800-265-1818
Siemens VDO ®
Clock/Engine Hourmeter
Installation Instructions
Instruction Sheet # 0 515 012 157
Rev. 10/03
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Illumination
C A UT ION: R ea d these ins tructions
thoroughly before making installation.
Do not deviate from assembly or wiring
instructions.
Mounting Nut direction
depends on panel w idt h
A: 0 – .4" (0 – 10 mm)
CAUTION: B: Read .4" – .8 " (10 these – 20 mm) instructions
t
ç
TOP:
VDO’s Spin-Lok ä
Mounting Clamp
LEFT:
VDO Mounting Bracket
Diagram A - Mounting using optional
VDO Mounting Bracket or VDO Spin-Lok Clamp
é
Instrument Mounting Diagram A:
1. Prior to any work on vehicle's wiring
system, removing the (-) negative battery
cable from the battery to disable battery
power.
2. Find a suitable location to mount the
instrument where there is ample depth to
secure and wire instrument.
3. Cut a 2 1/16" (52 mm) diameter hole
in the location selected. Instrument should
fit into hole easily without forcing. Forcing
it may cause damage to housing of
instrument.
4. Secure 'Spin Lok' clamp (Diagram A)
on to instrument. (Note) the 'Spin Lok'
clamp is designed to work in thin panels
as well as panels up to .8" (20 mm)
in thickness. Consequently, if 'Spin Lok'
clamp is installed and will not securely
fasten instrument, remove, reverse and
re-install.
5. If you are using optional metal mounting
bracket, install with mounting nuts,
For thicker panels it may be necessary to
trim legs accordingly.
Clock Wiring Digram C:
1. Wire + terminal to a fused 12 v battery
source that is not switched off when
vehicle ignition is off.
2. Wire - terminal to a good ground
location.
3. If the instrument you have purcased
has an illumination terminal K, wire to
the light switch of the vehicle so that the
instrument light turns off and on when the
switch is operated.
4. Reconnect battery ground cable and
test for operation.
CAUTION!!!
Secured with Spin- Lok or metal
braket tight enough to prevent rotation
of instrument.
DO NOT OVER TIGHTEN
INSTRUMENT OR DAMAGE
WILL OCCURE TO HOUSING
AND BEZEL.
Hour Meter Wiring
Option 1- Digram C:
1. Wire + terminal to a fused 12/24v
battery source that is switched off when
vehicle is not in operation.
2. Wire - terminal to a good ground
location.
3. If the instrument you have purcased
has an illumination terminal K, wire to
the light switch of the vehicle so that the
instrument light turns off and on when the
switch is operated.
4. Reconnect battery ground cable and
test for operation.
(Note) Since the hourmeter registers
in 10 th of hours, it will take 6 minutes
before hourmeter will show movement.
Hour Meter Wiring
Option 2 - Digram C:
1. Wire + terminal to a fused 12/24v
battery source that remains on even
vehicle igniton is off.
2. Wire - terminal directly to a normally
open engine oil pressure switch.
When engine is started and oil pressure
CAUTIO
rises the pressue switch will close and CAUTION
the hour meter will begin to operate.
3. If the instrument you have purchased
has an illumination terminal K, wire to
the light switch of the vehicle so that the
instrument light turns off and on when the
switch is operated.
4. Reconnect battery ground cable and
start vehicle. When oil pressure present
observe operation of instrument.
(Note) Since the hourmeter registers
in 10 th of hours, it will take 6 minutes
before hourmeter will show movement.
Clock Setting
1. Button on bottom left of clock face
will set counter clock wise
2. Button on bottom right of clock face
will set clock wise
3. By hold left or right button down
will make the clock set faster

Note: Calibration is mandatory for
gauge to work properly. Tank must be
empty when calibration is performed.
Using a small plastic screwdriver,
turn the adjustment screw
located in a hole on the side of the
gauge housing. NOTE: Do not use
a metal screwdriver... static
discharge can damage the gauge.
Move the pointer until it
comes to rest directly on “0”
or “E” (whichever designates
empty on your gauge).
If in doubt, please contact your
dealer or VDO Instruments at 1-800-
265-1818.
CAUTION: Read these instructions thoroughly
before making installation. Do not deviate from
assembly or wiring instructions. Always
disconnect battery ground before making any
electrical connections.
Sender Installation:
Mount the sender vertically in the deepest
part of the tank, as shown in Diagram D.
You will need to cut a 2¾" hole.
Wiring the Fuel Gauge:
1. Run wires from the adjustable fuel gauge
location to:
a) +12 volt power terminal
(This positive power source MUST
BE SWITCHED, and should be
protected with a fuse)
b) the light switch (also after the
fuse in the fuse box)
c) a good ground location
d) the tube-type fuel sender.
2. Wire the adjustable fuel gauge and tubetype
sender as shown in Diagram C.
3. After wiring gauge/sender, calibrate them
(Diagram E). With the tank empty, use the
calibration screw to move the pointer to “E.”
When the pointer rests on “E” with the tank
empty, the gauge and sender are calibrated
and ready for use, and the gauge can be
mounted.
[text continues]¨
When you have moved the
pointer to “0” or “E” with
the tank empty, calibration
is complete and your gauge
is ready to use.
CAUTION!!!
This adjustable fuel gauge must be
calibrated before it can work properly.
Please read and follow all instructions
before installing this
gauge.
Parts List
Item Description Quantity
1. Adjustable Fuel Gauge 1
and/or
1. Tube-Type Fuel Sender 1
2. Lamp Socket (Push in, wedge-type) 1
3. Light Bulb (12-volt / G.E. #158 or equivalent) 1
4. VDO Spin-Lok Clamp or Mounting Bracket 1
5. Installation Instructions 1
Diagram E
Calibrating gauge with the sender is necessary for accurate operation
Siemens VDO Limited Warranty
VDO North America warrants all merchandise against defects in factory workmanship and materials for a period of 24 months after purchase. This
warranty applies to the first retail purchaser and covers only those products exposed to normal use or service. Provisions of this warranty shall not
apply to a VDO product used for a purpose for which it is not designed, or which has been altered in any way that would be detrimental to the
performance or life of the product, or misapplication, misuse, negligence or accident. On any part or product found to be defective after examination
by VDO North America, VDO North America will only repair or replace the merchandise through the original selling dealer or on a direct basis. VDO
North America assumes no responsibility for diagnosis, removal and/or installation labor, loss of vehicle use, loss of time, inconvenience or any other
consequential expenses. The warranties herin are in lieu of any other expressed or implied warranties, including any implied warranty of merchantability
or fitness, and any other obligation on the part of VDO North America, or selling dealer.
(NOTE: This is a “Limited Warranty” as defined by the Magnuson-Moss Warranty Act of 1975.)
Siemens VDO . http://sso-usa.siemensvdo.com/ . Phone: 1-800-265-1818
Tools and Materials Needed For Installation:
16 Gauge stranded, insulated wire
Non-insulated ¼" spade connectors
2¹⁄₁₆" hole saw
Drill and drill bit set
Half-round file
Tape measure or ruler
Small tools: wrench or nut driver, utility
knife, pliers, etc.
Siemens® VDO
Adjustable Fuel Gauge
Tube-Type Fuel Sender
Installation Instructions
Instruction Sheet # 0 531 060 140
Rev. 07/03
INSTRUCTIONS FOR THE INSTALLATION OF THE ADJUSTABLE FUEL GAUGE AND/OR TUBE-
TYPE SENDER ARE CONTAINED HEREIN. USE IS RESTRICTED TO 12-VOLT NEGATIVE
GROUND ELECTRICAL SYSTEMS. LIGHT BULB, IF SUPPLIED, IS 12 VOLT.

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Gauges with metal housings
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Diagram A
Gauge dimensions
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Gauges with plastic housings
Fuel Gauge Installation:
1. Select the location where you will mount
the gauge, and mark a center point.
2. Cut a 2¹⁄₁₆" (52 mm) hole. Be sure to cut
the hole exactly. If the gauge is too snug, use
a file to slightly enlarge the opening.
(Diagram A)
3. Secure the gauge in place either with the
U-shaped mounting bracket or the VDO
Spin-Lok Mounting Clamp (whichever
➊ Cut a 2¾"
hole.
came with your gauge). The VDO Spin-
Lok Mounting Clamp direction depends
on the thickness of the panel (Diagram B).
Tighten the clamp until the fuel gauge can
no longer be rotated by hand.
DO NOT OVERTIGHTEN.
At this point, the installation, wiring and calibration
of your new VDO Gauge and/or
Sender is complete. Turn on the ignition
and lights and check to see that the instrument
and light work properly. If they don’t,
re-check your wiring and your calibration.
➋
Remove tape that
covers float set plug.
Diagram B
Proper mounting with VDO’s Spin-Lok ä Clamp or mounting bracket
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