TM 9-2320-283-10
KEY TO TACHOGRAPH SECTION OF INSTRUMENT PANEL
1
TACHOGRAPH
CAUTION
Do not operate vehicle with-
out a tachograph disk instal-
l e d .
Registers truck ground speed (mph/
k p h h a n d ) , e n g i n e s p e e d ( r p m
hand), and distance traveled (odo-
meter). The other two hands are
clock hands. The tachograph re-
cords data on a 7-day graph for a
permanent record.
2
CLEARANCE LAMPS PUSHBUTTON
Press this button to flash the truck and trailer clear-
ance and marker lamps on and off. The CLEARAN-
CE LAMP Indicator (key item 3) will come on when-
ever the headlamps switch is in either ON position.
3
CLEARANCE LAMPS INDICATOR
This lamp will illuminate when the headlamp switch
is pulled out to either the first or second position.
Intensity of the light may be varied by rotating the
headlamp switch knob. Its purpose is to aid in locat-
ing the clearance lamps pushbutton at night.
4
ETHER QUICK-START PUSHBUTTON
CAUTION
Do not use this button without first reading
t h r o u g h l y t h e c o l d w e a t h e r s t a r t i n g p r o -
cedure chapter 2, section III, paragraph 2-11.
Press and release this button to inject ether for cold
weather starting.
TA 236642
2-10
