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© 2014 Foundation Supportworks
®
,
Inc.
All Rights Reserved
p 273
APPENDIX 3C
LIFT ASSEMBLY SPECIFICATIONS
Chapter 3
Hydraulically-Driven Push Piers
Model 238 Lift Assembly Specifications
Compatible Brackets
(3)
:
FS238B
Lift Cylinder (FS256LC):
Stroke = 4”
Cylinder action = single
Bore =
Ø
2.56”
Hydraulic area = 5.15 in
2
Max operating pressure
(2)
= 8,000 psi
Lift Assembly Hardware
(1)
:
(2) -
Ø
5/8
” x 16” long coil rod
with nuts and hex couplers, or
(2) -
Ø
5/8
” x 14” long all-thread rod
with nuts and hex couplers
Lift Assembly
Rated Lifting Load
(2,3)
27.6 kips
Hydraulic
Pressure
(psi)
Lift
Force
(2,3)
(kips)
Hydraulic
Pressure
(psi)
Lift
Force
(2,3)
(kips)
400
2.1
3,200
16.5
800
4.1
3,400
17.5
1,200
6.2
3,600
18.6
1,400
7.2
3,800
19.6
1,600
8.3
4,000
20.6
1,800
9.3
4,200
21.7
2,000
10.3
4,400
22.7
2,200
11.3
4,600
23.7
2,400
12.4
4,800
24.8
2,600
13.4
5,000
25.8
2,800
14.4
5,200
26.8
3,000
15.5
5,350
27.6
(1)
Hardware used in the lift assembly must be selected to match the hardware used with the installed bracket assembly.
(2)
Do not operate at pressures that produce lift forces in excess of the lift assembly’s rated lifting load. Max operating pressure of the lift cylinder
produces forces that exceed this value and is given for informational purposes only.
(3)
Rated lifting load is given for the lift assembly only. Do not operate at pressures that exceed the allowable capacities of the system which are
governed by the allowable capacities of the bracket and other system components, as well as the torque correlated soil capacity, or installed
driving force divided by an appropriate factor of safety. All of these governing limits are outlined in places elsewhere in this appendix.