Single - Level Light Duty Direct Shear Tester Easy To Carry For The Field Test

Single-lever light duty direct shear tester designed for determining soil shear strength, angle of internal friction, and cohesion. The instrument features a tracking device to ensure output accuracy. Easy to carry for field testing, and capable of performing flooding shear tests.

1. Remove the instrument case and four-week plugs, place the instrument on the platform, adjust the column screw to ensure stability and tighten the cap
2. Loosen hexagonal bolts on the beam and tighten the frame to ensure basic stability of the framework and leverage
3. Check both sides of the lever and hanging ring for friction, ensure rolling bearings are flexible, adjust counterweight for basic balance, and tighten balance between hammer and cap
4. Cut box, check rolling balls for flexibility, place soil sample, position permeable stone, align pressure screw with ball center
5. Rotate hand wheel until box touches the ring, set dial indicators to zero, adjust pressure screw and leverage height
6. Apply vertical load according to project requirements, tighten screw bolt, and rotate hand wheel for even-speed cutting while monitoring dial indicator readings
7. After shear completion, remove shear and vertical loads, recover equipment

• After experiments, clean shear box and apply thin layer of anti-rust oil
• Calibrate internal ring every six months or based on usage
• Clean lever bearings every six months and apply grease for smooth sliding