The vehicle is shown here with the bridge stowed. 1. Bridge. 2. Final drive sprocket. 3. Roadwheel. 4. Support roller (either 3 or 5). 5. Track. 6. Compensating idler wheel. (Picture from TM 5-5420-226-10.)
The vehicle is shown here with the launcher extended and bridge absent. 1. Boom and outrigger. 2. Guide pin. 3. Locking cylinder. 4. Tongue. 5. Pintles. 6. Ejection cylinders. 7. Tongue cylinder. 8. Overhead cylinder. 9. Holddown cylinder. 10. Bridge seat. (Picture from TM 5-5420-226-10.)
The locations of interior components can be seen here. A. Transmission. B. Universal joint. C. Engine with power takeoff. D. Hull drain valves. E. Engine air cleaner intake. (Picture from TM 5-5420-226-20-1.)
The operator's station is drawn here. 1. Tachometer and hour meter. 1.1. Dust detector warning lamp (if equipped).
The fixed fire extinguisher activation handle is visible above the right-hand grip of the handlebar-like steering control. The perforated accelerator pedal can be seen on the floor, and the brake pedal is diagonally up and to the left of the accelerator pedal, visible between it and the right-hand grip of the steering control. The headlight dimmer switch is to the left of the accelerator pedal, and the transmission shift lever is to the driver's right in the lower right of the image. The five handles facing the driver are the bridge operating controls. From left to right, they are the Eject lever, which controls the ejection cylinders; the Lock lever, which controls the locking cylinder; the Scissors lever, which controls the bridge scissors cylinder; the Tongue lever, controlling the tongue; and the Overhead lever, which controls both the overhead and holddown cylinders. (Picture from TM 5-5420-226-10.)
The pattern of launch of the smoke grenades is diagrammed here. Two buttons were provided: pushing the left button activated tubes 1, 2, and 5 from the left launcher and 4, 6, and 3 from the right. The right button activated the opposite tubes, and pushing both buttons fired the complete salvo. (Picture from TM 5-5420-226-10.)