TM 5-5420-278-100019 000019 00-1TRANSPORTER OPERATIONS SITE SURVEYWARNINGPrior to performing transporter operations, ensure asite survey is conducted. Failure to meet all siterequirements for a given launch method may result indamage to equipment or possible injury or death topersonnel.A site survey must be conducted to establish a suitable launch site prior tolaunching bays and performing bridging or rafting operations. (Refer toWP 0019 00, Site Requirements and Layouts.) Site selection should be establishedby reconnaissance, and the operator is responsible to observe the followingrequirements and conditions prior to entering the site with a transporter.WARNINGTwo ground guides must be present for all bridgingoperations. Failure to use ground guides may result incrashing the transporter into an obstruction or comingin contact with power lines resulting in damage toequipment or injury or death to personnel.a. A ground guide is required to assist the operator when maneuvering thetransporter and while performing launch and retrieval operations.CAUTIONGravel and small rocks on roadway surface leading tobridge can cause dents and punctures in bridgeroadway deck and can also become lodged in ramp andinterior bay unfolding mechanisms causing jammingduring bay retrieval. If gravel or small rocks arepresent at bridge or raft site, either remove them orcover them with topsoil or sand.b. The launch site ground surface should be firm and clear of any obstructionssuch as gravel, small rocks, and low hanging trees or power lines.c. The overhead clearance above loading areas must be at least 22 ft, 2 in. (6.7 m).d. The river bank incline should not be greater than the specified limit for thelaunch method used. (Refer to WP 0019 00, Site Requirements and Layouts.) e. The river bank side-to-side slope should be no greater than an 8% grade (5-degree angle).CAUTIONWater fording depth should not exceed 4 ft (1.2 m) ordamage to equipment may result.f. Water depth for fording CBT should not exceed 4 ft (1.2 m).
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