Quantcast Forward and Rear Carriages

 

Click here to make tpub.com your Home Page

Page Title: Forward and Rear Carriages
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Launch Beam - TM-5-5420-279-230042
Up
TM-5-5420-279-23 Dry Support Bridge (DSB) (NSN
Next
Carriage Manifold
TM 5-5420-279-23
beam passes the safety stop without hitting it. If no new beam is attached, and the launch beam
is boomed forward the stop block would foul the safety stop and restrain the launch beam.
1-10-24 Forward and Rear Carriages
a.
The forward and rear carriages are similar assemblies manufactured from aluminum alloy
232B. They consist of upper frames and lower bridge lifting beam assemblies pinned together by
shoot bolts. They are operated and moved by the drum winches on the launch frame.
b.
Two roller assemblies are mounted on the top of each upper frame assembly and support
the carriages on the launch beam. The roller assemblies consist of two rollers which roll on the
launch beam and a free running central roller which allows the winch rope to run under the
carriage rollers. Grooved pulleys are installed on both the upper assembly and on the lower
assembly to allow separation of the two halves to lower the bridge.
c.
The lower bridge lifting beams also incorporate attachment points for the bridge lifting
slings. The upper and lower assemblies are fitted with attachment lugs to enable the assemblies
to be manually pinned together. When the pins are removed from the upper and lower
assemblies, the lower drum winch can be operated to raise or lower the bridge.
d.
Steel wire ropes from the drum winches on the launch frame are routed around the launch
beam modules to the forward and rear carriages. When the rope from the upper drum winch is
tensioned and the rope from the lower drum winch is paid out, the forward carriage is moved
along the launch beam.
Fig 1.8 Forward and Rear Carriages
e.
When the bridge is attached to both forward and rear carriages, this action moves both
carriages along the launch beam. Hydraulic control of the drum winches is achieved through the
1-17

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.