# Troubleshooting of Hydraulic Torque Wrench

Tool failure, although rare, does occur. Such failure is most often in the hydraulic couplers or hoses. These items are repairable or replaceable immediately, since they are available universally. Failures of structural members of the tool are quite rare, however, replacement parts are available from stock. All repairs to Atlas Copco tools may be made by reasonably experienced individuals according to the aforementioned instructions. Otherwise, please contact Atlas Copco to schedule a quick repair of the tool.

- Lubrication: All moving parts should periodically be coated with a good quality lubricant as Molykote with Graphite P37 or Dow Corning 1000. Under harsh environmental conditions, cleaning and lubricating should be performed more frequently.

- Hydraulic hoses: Hoses should be checked for cracks and leaks after each job. Hydraulic fittings can become plugged with dirt and should be flushed periodically. Hydraulic hoses have to wear a valid control certification.

- Quick-Connects: Fittings should be kept clean and not allowed to be dragged along the ground or floor, as even small particles of dirt can cause the internal valves to malfunction.

- Cylinder Seals: If the cylinder requires disassembly, it is recommended that the cylinder seals be replaced at the same time. Seal kits are readily available.

- Structural Member :All structural parts on the tool should be inspected once a year to determine if there are any cracks, chips or deformities. If so, immediate replacement is required.

Recommended Service intervals are :

1. Heavy Duty use or use in corrosive/harsh environments – every 3 Months Internal Drive components may require frequent inspection and re-lubrication under heavy duty cycles, e.g. weekly

2. Normal use – every 6 months

3. Light or infrequent use – every 12 months