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Figure  2-1.  The boat loaded for transporting.
Figure  2-2.  Anchor snatch block.

TM-5-2090-200-12P Cradle Boat 27 FT: Bridge Erection Boat NSN 2090-00-348-8138 Manual
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TM 5-2090-200-12&P 2-2. Loading a. Loading the Boat and Boat Cradle.  To load the boat cradle with 27-foot boat on it onto the tactical floating bridge transporter form a hardstand, use the rear winch and boom on the transporter and proceed as follows: (1) Remove the anchor snatch block (fig. 2-2) from the transporter boom. (2) Install the left and right inboard roller assemblies on the rear support of the transporter, as shown in figure 2- 3, so that the rollers are positioned at the bases of boom legs. (3) Make  sure  the  inboard  roller  assemblies  are  swung  upward  until  a  travel  is  stopped  by  the  seating  of  the cradle  stop  bracket  against  the  inclined  surface  on  the  tansporter  boom.    The  correct  position  is  shown  in  figure  2-4. Tighten the roller bracket bolts to secure the roller assemblies in the correct position. (4) Place the transporter into a loadposition. (a)   Start the transporter (refer to TM 9-2320-260-10). (b)   Use  an  assistant  to  guide  the  driver  and  back  the  transporter  into  position  so  that  the  rear  support  is about one foot in front of the forward (dolly) end of the boat cradle.  Make sure that the boat cradle side beams are in line with the inboard rollers on the transporter rear support. (c)   When  positioned,  depress  the  clutch  pedal,  place  the  transmission  shift  lever  in  the  neutral  position, engage the parking brake, engage the power take-off control lever for the hydraulic pump by pushing the lever down and release the clutch pedal. (d)   Set the hand throttle so that the transporter engine operates at 1,700 RPM. (e)   Take  your  position  as  driver/operator  at  the  hydraulic  controls  located  on  the  left  side  behind  the  cab and station an assistant near the latch block of the boat cradle. (f) Engage  the  hydraulic  control  lever  to  disengage  the  forward  tie  down  pin  (fig.  2-4)  and  push  the hydraulic winch control to pay out enough slack in the boom cable so that the hook reaches the ground. (g)   Push  the  hydraulic  boom  elevation  control  (outside  lever)  to  raise  the  boom.    Raise  the  boom  until  it passes slightly beyond vertical, so that the cable will clear the rear support.  Pay out the boom cable until there is about three feet of slack on the ground. (5) Lift the latch hook on the boat cradle and secure it in the unlatched position.  Remove the retainer (9, fig. 2- 5) from the screw (10), and remove the screw  (10) and latch block (11). (6) Place the boom cable on the sheave, thread it through the hole in the front beam of the dolly, and engage the cable hook in the eye on top of the dolly base. (7) Reinstall the latch block (11), retaining screw (10), and retainer (9), so that the boom cable runs between the latch block and the sheave (7).  Release and relatch the latch hook (18). (8) Pull the winch control lever to rewind the boom cable.  Lift the dolly end of the boat cradle until the forward cradle stop pins will clear the stop brackets on the rear support inboard rollers. Change  2  2-3







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