Operating Square Drive
Changing Drive Direction
To remove the square drive, push the round button on the drive retainer and gently pull on the square end of the square drive (for RT20, 25 & 50, push on the drive retainer while turning it counter-clockwise). To insert the drive in the tool, place the drive in the desired direction, engage drive and bushing splines, then twist drive and bushing until ratchet Spline can be engaged. Push drive through ratchet.
Push drive retainer button, engage retainer with drive and release button to lock the square drive in position.
Reaction Arm
All Atlas Copco hydraulic torque wrenches are equipped with a universal reaction arm. These reaction arms will absorb and counteract forces created as the unit operates. The reaction arm should extend in the same direction of the square drive; however, slight adjustments may be made to suit your particular application. The RT reaction arm is made of special aircraft alloy and is 360° adjustable.
Reference | Description |
---|---|
A | Right = Tight |
B | Left = Loose |
The standard RT reaction arm cannot be welded on and should not be modified.
The reaction arm for all RT Monobloc Housing is splined to slide over the rear (cylinder) portion of the tool. In operation, the reaction arm must be fully engaged and secured by inserting the spring loaded reaction arm lever at the base of the housing (end cap). Ensure the reaction arm is fully engaged prior to operation.
Setting Torque
Once the system is fully connected and proper power supply available, the operator may now adjust the pump pressure to the level needed for the application.
When tightening, use the manufacturer's specifications to determine the torque value which you will ultimately require.
Torque sequence may vary from plant to plant and even within individual plants, depending upon the gasket material, etc. Always follow local procedures.
Refer to the pressure-torque conversion table applicable to the tool which you intend to use, Torque chats are available on ServAId .