2-2. MECHANIC'S (ASSISTANT OPERATOR'S) CONTROLS AND INSTRUMENTS.
The mechanic's (assistant operator's) seat controls, interphone control box, and
hatch control are the same as the driver's.
Mechanic's Hatch Control (1). Holds mechanic's hatch open for entry or exit.
M17 Periscope (2). Provides vision to operate vehicle with hatch closed.
Mechanic's Interphone Control Box (3). Provides communication between crew during operations.
Mechanic's Vision Blocks (4). Provides vision while operating vehicle.
APU Emergency Winch Control Valve (5). Controls winch in an emergency.