• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
Figure 4-1.  Void 4 Trolley Hoist
Maintenance procedures - TM-55-1930-209-14P-13_87

TM-55-1930-209-14P-13 Water Purification Barges (1930-01-234-2165) Equipment Montoring System Manual
Page Navigation
  64    65    66    67    68  69  70    71    72    73    74  
TM 55-1930-209-14&P-13 Section III.  Operating instructions 4-9  Operating controls.  Controls for maneuvering loads are the pull chains located on the trolley hoist (Figure 4-1). 4-10  Prestart Procedures a. Ensure  trolley  hoist  has  been  properly  lubricated.    Chains  must  be  kept  clean  and  properly  lubricated, because  dirt  damages  or  jams  gears  and  creates  excessive  wear  and  operational  delays.    Chains,  when rubbed  with  an  open  hand,  should  be  free  of  dirt  and  grit.   A  light  coat  of  lubricant  should  be  present  on chains. b. Check chains for proper seating on gears and freedom from twisting or other defects. c. Ensure that choice of slings matches load to be lifted. d. Move trolley hoist directly over the load by using trolley lateral movement chain. e. Be sure load will clear all equipment in movement path. 4-11  Operating procedures a. Ensure trolley hoist is directly over the load to be moved and then lower trolley hoist hook and attach it to load. b. Using  chains,  raise  load  a  few  inches  and  ensure  that  load  is  being  lifted  vertically.    Loads  must  not  be pulled to one side or in one direction. c. Lift load only high enough to move it safely to new location. d. Using trolley hoist chains, manually move load to desired location and lower into place. 4-12  Shutdown procedures a. Remove and secure lifting devices and jigs (if used). b. Raise lifting hook on void 4 trolley hoist to top position and secure chains to keep them from swinging. 4-13  Operation under extreme conditions.  To ensure efficient operation of the trolley hoist in cold or hot weather, make sure that hoist is clean and properly lubricated.  Changes in weather conditions do not require any special lubricants. Section IV.  Maintenance instructions 4-14  General.  When inspecting void 4 trolley hoist components, give special attention to pulleys, lifting hooks, chains, slings  and  other  load  bearing  components.    Keep  inspection  reports  and  records  on  all  hoist  equipment.  Required maintenance forms and records are explained in DA PAM 738-750.  When performing maintenance, be sure to observe precautions in this manual and in the manufacturer's manual.  Due to stress and tolerance requirements for the trolley hoist,  replace  parts  or  components  of  the  trolley  hoist  with  items  the  same  as  original  construction.    Use  materials  in accordance with the drawings referenced in Appendix A. WARNING Notify IDS/IGS maintenance unit after repairing or replacing crane load bearing parts  or  parts  on  any  lifting  slings  or  rigs  used  with  the  crane.    They  must proof test and safety inspect the repaired item in accordance with TB 43-0142. In  addition,  the  crane  and  all  slings  and  lifting  devices  used  with  the  crane must be proof and function tested, and safety inspected to this standard every 12 months.  Record and maintain certification of all proof testing. 4-14.1  Maintenance concept 4-14.1.1  Unit level and IDS/IGS maintenance for the bridge crane system is performed onboard by barge crewmembers whenever possible. 4-3







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.