TM 9-2320-273-20
FUEL AND AIR INTAKE SYSTEM.
4-19. TACHOGRAPH RPM CABLE MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
A. REMOVAL (Continued).
c. Unscrew from tachograph
drive (4) on fuel pump.
d. Pull through firewall and
remove.
B. lNSTALLATION.
3. Tachograph RPM cable (3).
a. Screw into tachograph
Avoid bending the cable
drive (4) on fuel pump.
sharply. For proper opera-
b. Thread free end through
tion, cable should be as
firewall.
straight as possible.
c. Install capscrew and
clamp (5).
d. Connect to “RPM” port
(2) of tachograph.
e. Replace cable tie.
4. Two quarter-turn screws (1).
Close panel; tighten screws.
C. OPERATIONAL CHECK.
5. Engine.
6. Tachometer.
7. Engine.
Start up (see TM9-2320-273-
10).
Check for appropriate
reading (580-620 rpm if
engine is idling normally)
and responsiveness to
changes in engine speed.
Shut down (see TM 9-2320-273-10).
NOTE
Follow-on maintenance action required:
a. Connect batteries; refer to para 5-37B.
b. Install left fender; refer to para 11-14.
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