Advertisement
10-100
INSTRUMENTS
ELECTRICAL SYSTEMS
(376)
3. Before connecting the last
cable
to bat-
t
ery,
touch the terminal to its post on
battery.
Immediately afterward st r ike the terminal
against
battery
post to see if
there
is a spark.
If
there
is, allow the clock to run down until it
stops ticking, and r
epeat
as above until
there
is no spark. Then
immediately
make the
per-
manent
connection
before the
clock can again
run down. The clock will run down in approxi-
.
mately
2 minutes.
4. Reset clock
after
all connect ions
are
made.
NOTE: Th
e above
pro
cedure
should
also be
follow
ed when reconn ecting
th
e
clock after it
has
been disconnected,
or if it has stopped be-
10-67 GASOLINE GAUGE - DASH AND
TANK UNITS
The AC gasoline gauge consists of two units;
the dash unit located in the instrument cluster,
and the tank unit located in the gasoline tank.
One terminal of the dash unit is
connected
to
the ignition switch so that the unit registers
only when the ignition switch is
turned
on. The
other terminal of the dash unit
is
connected by
a single wire to the tank unit, which is grounded
on the tank to complete the
circuit.
The dash unit pointer is
moved by changing
the magnetic pull of two coils in the unit. The
magnetic pull is controlled by a
ction
of the tank
BACK OF CLOCK IS ACCE
SSIBLE TH
RU THE
GLOVE BOX DOOR
OPEN
ING
fO
R TIME SET
TING
OR
REGULAT ING
.
CLOCK LI
GHT
WIRE(
BLA CK)
Figure 10-131-80rg Clock Installation-Series 50-70
cause
of a blown fu
se.
B
e sure
to
disconnect
battery cable before
in stalling a new fus
e.
d. Clock Service
The clock manufacturers have established
Authorized Service Stations in many cities
throughout the United States and Canada.
These service stations are prepared to carry
out terms of the manufacturer's warranty and
also to perform
any
repairs made necessary
through use of clock.
When a clock requires warranty service or
repairs other than regulation, it should be re-
moved by the Buick dealer and sent to the near-
est authorized service station. The manufac-
turer' s
warranty is void if repairs
have been
attempted outside of an authorized service sta-
tion.
unit which contains a variable rheostat, the
value of which varies with movement of a float
and arm. The tank unit is mounted in the tank
so that the float rises and falls on the surface
of the gasoline near the middle of the tank. The
float is adjusted to provide approximately 1
gallon reserve when the dash unit pointer is at
the dot next to the
HE"
position.
If
the gasoline gauge-does not operate
prop-
erly, the dash unit, tank unit
wiring,
and tank
unit should be
separately
tested to determine
which is at fault. The units and wiring
may
be
tested with AC Gas Gauge
Tester
HMO 204
(AC #1516000).
If
Tester HMO 204 is not available, a similar
tester may be made from a new gasoline gauge
tank unit. Attach a 5-foot piece of red colored
insulated wire (#16) to binding post of tank
unit, and attach a similar piece of black wire to
Advertisement
