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T M 1 0 - 3 8 3 5 - 2 1 9 - 14
c.
HOSELINE FLAKING INSTRUCTIONS.
C A U T I O N
Weight of 3 flaking boxes is approximately 6000 pounds. Do not overload
vehicle,
(1) G e n e r a l. The hoseline is positioned by flaking the hose from the rear of a moving truck, then manually
moving the hose to a secure position. A maximum of three flaking boxes (3000 feet (900m) of hose) are loaded
onto a truck, and the leading and trailing ends of each hose are connected to the next hose in line. When the
truck moves forward along a predetermined route, the hose flakes out of the flaking boxes and is laid out behind
the truck. As the hose flakes out, it must be manually picked up and moved to a secure position 5 to 10 feet (1.5-
3.0m) from the roadway. Any bends or kinks in the hoseline must be straightened. The recommended hose
laying speed is approximately 10 mph (16 km); however, the actual rate will vary in each usage. The optimum
speed for any hose-laying operation will vary depending upon the terrain, available manpower, and how far the
hose must be moved between the point it flakes off the truck and a secure area for hoseline operation. The hose
must not be left exposed on any roadway or track which will be traveled by other vehicles. Due to its lightweight,
thin-wall constructions, the hoseline is easily damaged by rough handling, abuse, or abrasive contact with rocks.
Special kits are included in the hoseline outfit for use in construction of short, roadway crossings and overhead
suspension crossings. The flow control kit contains hoseline valves, couplings, and a tee used to supplement the
hoseline under varying usage conditions. A minimum of five trucks with crews of five men each laying hose is
recommended for efficient hose-laying operation (refer to Table 2-2).
Table 2-2. Manpower Requirements.
Hose laying
25 persons and 5 trucks
Hose retrieval/repacking
35 persons and 5 trucks
Install 10-foot (3m) road crossing
5 man-hours
Repositioning hose 5 to 10 feet (1.5-3.0m)
4 man-hours/mi
from drop point to suitable position
Hose laying
8 man-hours/mi
Hose retrieval
12 man-hours/mi
(2) Individua/ task assignments. Task assignments for the hose-laying operation per truck areas follows:
(a) Supervisor in charge. One supervisor is needed per truck during hose-laying operation
(b) Driver. One driver is needed to operate each truck.
(c) Assistant driver. One assistant driver is needed to observe the actual flaking out of the hose and the
work of the line walkers. The assistant driver tells the driver to vary the speed of the truck according to the speed
and needs of the line walkers, and also stops the operation if there is a problem.
(d) Line wakers. A minimum of two line walkers follow behind each truck straightening kinks or bends in
the hoseline. The line walkers are also responsible for picking up the hoseline and moving it away from the
roadway. Installation of roadway and suspension crossings may require additional personnel.
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