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TM 10-3930-643-20
INTRODUCTION.
1-10.
Differences Between Models.
b.
Heater Assembly.
(1) S/N 2000 and below. No heater assembly.
(2) S/N 2001 and above.
The heater assembly has a hose to radiator. The
hose assembly also has two valve assemblies.
These valves are shut off, during
radiator maintenance procedure.
c .
Start Switch.
(1) S/N 2000 and below.
Switch is activated by a key.
(2) S/N 2001 and above.
Switch does not require a key.
d.
Master Disconnect Switch.
(1) S/N 2000 and below.
Switch is activated by a key.
(2) S/N 2001 and above.
Switch does not require a key.
e . C i r c u i t B r e a k e r s.
(1) S/N 2000 and
(2) S/N 2001 and
f .
Backup Alarm.
(1) S/N 2000 and
(2) S/N 2001 and
below.
Three circuit breakers in the instrument panel.
above.
Four circuit breakers in the instrument panel.
below. No backup alarm.
above.
Backup alarm.
g .
Service Brake System.
(1) S/N 2001 and above. The service brake pressure converters convert
air pressure into hydraulic pressure.
(2) S/N 2000 and below. The power cluster converts air pressure to
hydraulic pressure.
1-9
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