1
INTRODUCTION
The Karol Warner model 2001-D Direct Shear Machine
is a tabletop unit that provides direct or direct/residual
shear values for evaluating the strength and stability of
soils. This device utilizes a pneumatic loading piston
for applying the vertical load to the sample. A calibra-
tion chart is included for setting the high load or the low
load via the Fairchild Regulator while a built-in digital
readout displays the vertical load in psi.
This Direct Shear Unit has a strain rate of 0.0001 – 0.3
in/min (0.0025 – 7.62 mm/min) with a maximum shear
displacement of 0.8in (20.3mm) and the travel speed
is set with the thumbwheels on the left side of the unit.
The residual shear force is determined by a load cell
and while real time load settings and peak load are dis-
played on the digital readout. Consolidation and shear
displacement are measured with Displacement trans-
ducers and displayed on a digital readout.
FEATURES
• Total shear capacity of 1,500lbf (6.67kN)
• Stepper motor controls strain rates to +/- 1% from
0.0001 – 0.3in/min (0.0025 – 7.62mm/min
• Teflon coated anodized aluminum water chamber
with drainage port included.
•
Meets requirements for ASTM D3080 and
AASHTO T 236
REQUIRED ACCESSORIES (purchased separately)
• Direct shear boxes are sold separately and are
available in a wide range of inch and metric sizes
with round or square shapes. See all options at
www.karolwarner.com and in chart below.
– Direct Shear Boxes and Accessories
Direct Shear Boxes & Accessories
Size Shear Box
Cutters
Extruders Porous Stones
Round Direct Shear Boxes
1.93 in (49mm)
20050
-
-
50191014
1.97in (50mm)
20049
20149
2049DE
50195314
2.0in (50.8mm)
20051
20151
2050DE
50198514
2.36in (60mm)
20057
20157
2057DE
50234514
2.42in (61.5mm)
20052
20152
2052DE
50240014
2.5in (63.5mm)
20053
20153
2053DE
50248514
2.76in (70mm)
20059
20159
2059DE
50274014
3.94in (100mm)
20055
20155
2055DE
50393714
4.0in (101.6mm)
20054
20154
2054DE
50398514
Square Direct Shear Boxes
1.97in (50mm)
20049S
20149S
2049SE
50195314S
2.0in (50.8mm)
20051S
20151S
2051SE
50198514S
2.36in (60mm)
20057S
20157S
2057SE
50234514S
2.42in (61.5mm)
20052S
20152S
2052SE
50240514S
2.5in (63.5mm)
20053S
20153S
2053SE
50248514S
3.94in (100mm)
20055S
20155S
2055SE
50393714S
4.0in (101.6mm)
20054S
20154S
2054SE
50398514S
• A constant supply of compressed air at 90psi
(6.2 bar) is required for use.
• A computer or laptop for connecting to the data
readout.
UNPACKING & SETUP
• Inspect your Direct/Residual Shear Machine for
damage, remove from the pallet.
• Place Direct Shear Machine on a sturdy, level sur-
face, such as a bench top or Model 2099 Rolling
Cart for Shear Machines.
Rev: 05/2020
2001D
Model 2001-D, 2001-DF Direct Shear Machine
OPERATING MANUAL
®
PHONE: 800-999-SOIL (7645)
PO Box 1213 Powell, OH 43065
410-987-7330
E-mail:
FAX: 410-987-2124
