TM 9-2320-360-10
2-2. DESCRIPTION AND USE OF CONTROLS AND INDICATORS (CONT)
TUNNEL PANEL CONTROLS - DRIVER'S SIDE
1
ENGINE Switch
Three-position switch (OFF, ON, START). When switch is in ON position, electrical system will
operate. START position operates engine cranking circuit. When switch is released after engine
tarts, switch will return to ON position. Positioning switch to OFF will shut down engine and turn off
electrical system.
2
Utility Outlet
Outlet used for connecting portable work light.
3
Transmission Range Selector
Used to select transmission range.
R (reverse): Permits operation in reverse.
2-5: Normal driving over had, smooth surfaces that provide high wheel traction and little or no
wheel slippage.
2-4 and 2-3: Diving over soft, rough, slippery surfaces, or cross-country terrain.
2: Hill climbing and engine braking to slow HET Tractor when descending steep hills.
1: Maximum engine braking when descending very steep grades, climbing steep grades, or
driving through deep mud, sand, or snow
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