dlt climbing jack operating sequence
DESCRIPTION
Climbing jackTRANSCRIPT
![Page 1: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/1.jpg)
Climbing jackOperating sequences
![Page 2: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/2.jpg)
Lifting sequence
![Page 3: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/3.jpg)
Starting position
Wedges Closed
Load applied to top of jack
Load taken by top anchor
Top anchor
Hydraulic rams, double acting
Bottom anchor
Square steel climbing bar
Steel wedges with teeth to grip the climbing bar (typical).Can be opened and closed hydraulically when not loaded
Wedges Closed
![Page 4: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/4.jpg)
Lifting – Step 1
Action:Extend rams approx 25mm to transfer the load to the bottom anchor
Wedges Closed
Wedges Closed
![Page 5: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/5.jpg)
Lifting – Step 2
Wedges Open
Wedges Closed
Action:Open the top anchor wedges
![Page 6: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/6.jpg)
Lifting – Step 3
Wedges Open
Wedges Closed
Action:Load lifting stroke.Fully extend the rams
![Page 7: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/7.jpg)
Lifting – Step 4
Wedges Closed
Wedges Closed
Action:Close top anchor wedges
![Page 8: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/8.jpg)
Lifting – Step 5
Wedges Closed
Wedges Closed
Action:Retract rams approx 25mm to transfer load to the top anchor
![Page 9: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/9.jpg)
Lifting – Step 6
Wedges Closed
Wedges Open
Action:Open bottom anchor wedges
![Page 10: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/10.jpg)
Lifting – Step 7
Wedges Closed
Wedges Open
Action:Fully retract rams
![Page 11: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/11.jpg)
Lifting – Step 8
Wedges Closed
Wedges Closed
Action:Close wedges in bottom anchor.
Lifting sequence complete
![Page 12: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/12.jpg)
Lowering sequence
![Page 13: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/13.jpg)
Starting position
Wedges Closed
Load applied to top of jack
Load taken by top anchor
Top anchor
Hydraulic rams, double acting
Bottom anchor
Square steel climbing bar
Steel wedges with teeth to grip the climbing bar (typical).Can be opened and closed hydraulically when not loaded
Wedges Closed
![Page 14: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/14.jpg)
Lowering - Step 1
Wedges Closed
Wedges Open
Action:Open bottom anchor wedges
![Page 15: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/15.jpg)
Lowering - Step 2
Wedges Closed
Wedges Open
Action:Extend rams to 25mm short of fully extended
![Page 16: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/16.jpg)
Lowering - Step 3
Wedges Closed
Wedges Closed
Action:Close wedges in bottom anchor
![Page 17: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/17.jpg)
Lowering - Step 4
Wedges Closed
Wedges Closed
Action:Fully extend rams to transfer load to the bottom anchor
![Page 18: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/18.jpg)
Lowering - Step 5
Wedges Open
Wedges Closed
Action:Open wedges in top anchor
![Page 19: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/19.jpg)
Lowering - Step 6
Wedges Open
Wedges Closed
Action:Load Lowering stroke.Retract rams to 25mm from fully retracted
![Page 20: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/20.jpg)
Lowering - Step 7
Wedges Open
Wedges Closed
Action:Close wedges in top anchor
![Page 21: DLT Climbing Jack Operating Sequence](https://reader031.vdocuments.us/reader031/viewer/2022032202/55cf8ff0550346703ba178f9/html5/thumbnails/21.jpg)
Lowering - Step 8
Wedges Open
Wedges Closed
Action:Fully retract rams to transfer load to the top wedges
Lowering sequence complete