Horn Adjustment - Jeep 1979 CJ-5 Technical & Service Manual

3S-2 HORN SYSTEMS
(14) To check for bad component ground, place a
voltmeter between component and ground. If a sizable
voltage is shown on the meter, repair the poor ground
connection.
(15) Continuous horn operation is usually caused by
improper ground in horn ring or button wiring.
HORN ADJUSTMENT
Adjust current by turning the adjusting screw
counterclockwise to decrease the current until the speci-
fied current is reached. Current adjustment is very sen-
sitive. Therefore, care must be taken not to turn the
horn adjustment screw too far. Turn only 1/10 of a turn
at one time.
(1) Check for normal battery voltage (about 12.6
volts).
(2) Connect ammeter in series between horn and
battery and read current as shown in figure 3S-2.
(3) Adjust current to 4.5 amps.
N O T E : Do not stuff rags or other materials in the horn
protector to muffle the sound while adjusting, as this
changes the vibration frequency and would give a raise
in current setting. When adjusting a set of horns, each
horn should be connected and adjusted separately, then
check for tone by operating as a pair.
G R O U N D H O R N
BATTERY
A M M E T E R
4 2 2 3 3
Fig. 3S-2 Connection for Horn Adjustment
SPECIFICATIONS
Electrical Specifications
Item
Current Flow
Horn
4-5 Amps
7 0 4 4 6
Torque Specifications
Service Set-To Torques should be used when assembling components. Service In-Use Recheck Torques should be used for checking a pre-torqued item.
USA (ft.lbs.)
Metric (N-m)
Service
Set-To
Torque
Horn Bracket Screw 15
All Torque values given in newton-meters and foot-pounds with dry fits unless otherwise specified.
Service
In-Use
Recheck
Torque
8-17
Service
Set-To
Torque
2 0
Service
In-Use
Recheck
Torque
1 1 - 2 3
7 0 4 4 5