# Preventive Maintenance

To keep the hydraulic torque wrench system in good working condition, do the following maintenance steps after each period of use.

1. Wipe clean all external surfaces and visually inspect the tool for signs of damage. Investigate if needed.

2. Examine all hydraulic joints and connections for signs of hydraulic leaks. Investigate if needed.

3. Make sure that all hydraulic couplings are clean and free from debris.

4. Inspect the full length of the hose; look for cuts or abrasions. Pay close attention to the swaged ends and look for any signs of leaks.

5. If the equipment is in good working order, spray with a suitable rust inhibitor oil, such as Shell Ensis or Castrol Rustillo, and store ready for next use.