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Figure 25. 24V Slave Receptacle, Battery Disconnect Switch, Fuel Shutoff Valve, Electric Fuel Priming Pump, and Purge Valve.
Figure 26. Defrost Fan Switch.

Operators Manual For Military 621G Scraper Page Navigation
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TM 5-3805-296-10
0004
OPERATOR CONTROLS AND INDICATORS CONTINUED
KEY
COMPONENT
DESCRIPTION
1
24V Slave Receptacle
Connection for 24V slave start cable.
2
Battery Disconnect Switch
Disconnects batteries from rest of machine. Includes a
mechanical lockout cover to prevent unwanted access to
switch.
Insert disconnect switch key and turn switch clockwise to the
on (I) position to activate machine electrical system and
enable engine start.
Insert key and turn switch counterclockwise to the off (O)
position to deactivate machine electrical system.
3
Purge Valve
Open valve when priming fuel system to allow fuel to drain
from system.
4
Fuel Shutoff Valve
Manual shutoff valve interrupting fuel flow to pump.
5
Electric Fuel Priming Pump and
Primes fuel system if air is suspected of being trapped in fuel
Switch
lines. Can only be operated when ignition switch is in off (O)
position.
6
Purge Hose
Fuel drain hose used when priming fuel system.
0004-31


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