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BODY MANUAL 52

essential to the proper functioning of the regulator).

2. If both gauges read too low, either the input voltage to

constant voltage regulator is below 5.0 volts or the voltage

regulator is inoperative and should be replaced. Check

battery voltage output before replacing regulator.

FUEL GAUGE CHECK

1. Disconnect lead wire at gas tank unit.
2. Hook in a new tank unit of proper calibration. See Figure

87. Place float in empty position. Turn on ignition switch.

Panel gauge should read at (E) on dial.

3. Move float to full position, panel gauge should read full

(F).

NOTE: If check 2 and 3 are O.K., both panel gauge and
lead wire are O.K. If checks 2 and 3 are not O.K., hook up
a new tank unit to proper terminal of panel gauge and
eliminate the lead wire from the panel indicator to the unit
from the regulator circuit. Repeat empty and full check. If
now operating O.K., correct or replace defective wire
between tank unit and panel gauge

TANK UNIT CHECK

If there is any question about the tank level unit being

O.K., hook the tank unit up in series with a panel indicator
and a constant voltage regulator known to be O.K. and a six

volt battery. Operate tank level unit by hand and see if panel

indicator reads empty (E) with tank level unit float in bottom
position and reads full with level unit float in top position. If

the panel indicator and lead wire function properly with a
new O.K. tank unit, but did not function properly with

original unit, replace original unit.

NOTE: Be sure tank unit is properly grounded to gas tank
and also that the tank is grounded to the frame.

TEMPERATURE GAUGE CHECK

1. If the temperature gauge reads up scale with a cold engine,

and the gas gauge reads up scale with an empty gas tank,

the constant voltage regulator is not operating properly

and should be replaced. (Check ground connections of the
voltage regulator as grounding is essential to the proper

functioning of the regulator.)

2. If both gauges read too low, either the input voltage to the

constant voltage regulator is below 5.0 volts or the voltage
regulator is inoperative and should be replaced. Check battery

voltage output before replacing regulator.

3. To check cylinder block sender unit proceed as follows:
a. Submerge unit in water up to the hexagon shoulder.

b. Attach "Ohm" meter to terminal. c. With water tempera-

ture at 160 F°, resistance must be 25.8-30.8 Ohms.

NOTE: It is not advisable to attempt any repairs or adjust-
ments to either unit of the gauge since they are factory cali-
brated and any attempt to repair is impractical.

WINDSHIELD WIPER CONTROL

(All Models 1948 thru 1954)

REMOVAL

1. Loosen screw attaching control wire to wiper motor and

remove wire from motor.

2. Loosen set screw in control knob and remove knob.
3. Using a suitable spanner, remove escutcheon nut and escutch-

eon.

4. Remove wiper control from panel and pull control wire

through dash.

INSTALLATION

Reverse procedure of removal.

LIGHT SWITCH AND CIRCUIT