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© 2014 Foundation Supportworks
®
,
Inc.
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p 265
APPENDIX 3B
DRIVE STAND SPECIFICATIONS
Chapter 3
Hydraulically-Driven Push Piers
Model 238 Drive Stand Specifications
when used with the RED
(4)
Drive Cylinder (FS35DC)
Compatible Brackets
(3)
:
FS238B
Drive Cylinder
(4)
(FS35DC):
Stroke = 22”
Cylinder action = double
Bore =
Ø
3.50”
Hydraulic area = 9.62 in
2
Max operating pressure
(2)
= 8,000 psi
Drive Cylinder Adaptor:
FSDCA238
Drive Stand Hardware
(1)
:
(1) -
Ø
3/4
” x 12” long coil rod with nuts
(2) -
Ø
5/8
” x 12” long coil rods with nuts
(4) - 1-
1
” Flanged Pins
Drive Stand Rated Drive Load
(2,3)
30.0 kips
Hydraulic
Pressure
(psi)
Drive
Force
(2,3)
(kips)
Hydraulic
Pressure
(psi)
Drive
Force
(2,3)
(kips)
200
1.9
2,100
20.2
400
3.8
2,200
21.2
600
5.8
2,300
22.1
800
7.7
2,400
23.1
1,000
9.6
2,500
24.1
1,200
11.5
2,600
25.0
1,400
13.5
2,700
26.0
1,600
15.4
2,800
26.9
1,700
16.4
2,900
27.9
1,800
17.3
3,000
28.9
1,900
18.3
3,100
29.8
2,000
19.2
3,120
30.0
(1)
Drive stand should never be operated without all hardware components firmly in place.
(2)
Do not operate at pressures that produce drive forces in excess of the drive stand’s rated drive load. Max operating pressure of the drive
cylinder produces forces that exceed this value and is given for informational purposes only.
(3)
Do not operate at pressures that produce drive forces in excess of the “maximum drive force during installation” values specified for the
bracket being installed (see Bracket Specifications and Capacities).
(4)
Note that the mounting flange dimensions are different between the RED and GRAY cylinders (FS35DC and FS425DC) and thereby require
the use of unique top fixture weldments that correspond to the appropriate drive cylinder.