# Connecting the System - Screw-to-Connect Coupling

Atlas Copco pumps and hoses have the couplings pre-configured to operate Torcflex wrenches as shown below.

If you use non-Atlas Copco equipment to operate Torcflex wrenches, make sure that the couplings are configured as shown.

1 | Wrench | 2 | Pump

Make sure that all couplings are connected properly with no gaps between the collars and the fittings. Never use wrenches or other tools to tighten or loosen couplers.

Make sure that the connectors are fully engaged and screwed tightly together.

Never use two twin hydraulic hoses between the pump and the tool. To avoid tool malfunction, do not reverse the connectors. Do not try to tighten or loosen any couplings under pressure.

## Applies to: