Using a cheater bar or snipe can overload a jack.

Using a cheater bar or snipe can overload a jack.

• A. True
• B. False
• C. Depends on jack rating
• D. Not in all cases

Answer: (A)

Using a cheater bar or snipe increases the leverage you apply when pumping, which multiplies the force on the jack beyond what it was designed to safely handle. A jack has a rated capacity, and that rating covers the load plus the stresses on the ram, seals, and housing under normal use. Extending the handle raises the torque on the jack’s components, pushing the ram and frame toward forces that can exceed their strengths. Even though a hydraulic system has a relief valve to limit pressure, the mechanical parts can still be overstressed, causing deformation, seal damage, hose or valve failure, or sudden dropping of the load. For safety, avoid using a longer lever; if more lifting is needed, use a higher-capacity jack or additional support rather than adding leverage.

Using a cheater bar or snipe increases the leverage you apply when pumping, which multiplies the force on the jack beyond what it was designed to safely handle. A jack has a rated capacity, and that rating covers the load plus the stresses on the ram, seals, and housing under normal use. Extending the handle raises the torque on the jack’s components, pushing the ram and frame toward forces that can exceed their strengths. Even though a hydraulic system has a relief valve to limit pressure, the mechanical parts can still be overstressed, causing deformation, seal damage, hose or valve failure, or sudden dropping of the load. For safety, avoid using a longer lever; if more lifting is needed, use a higher-capacity jack or additional support rather than adding leverage.