Enerpac SQD-Series User Manual

Page 7

5.5 Loosening and tightening

WARNING: Switch off the pump

before changing sockets, Allen-
key drives or wrench position.

Before positioning the wrench on bolt or nut,
assemble according Section 4.0.

See

and

for correct wrench, reaction

arm and socket (or Allen-key drive) position.

Make sure pump is not running and hoses are
clear of both the reaction arm and reaction
point. Place the torque wrench on the bolt
connection so that the bolt head or nut is fully
enclosed by the socket or the Allen-key drive
fully engaged in the socket head cap screw.

Pre-tension the bolt manually by using the
wrench. See safety issues

and

5.6 Determining the reaction point

WARNING: To avoid personal injury keep
hands away from reaction arm and working
area during operation. See

WARNING: Never react off loose

pieces. The force of the wrench
could cause loose pieces to

become flying objects.

IMPORTANT:

The reaction arm always

moves in the direction opposite the rotation of
the socket or Allen-key drive.

CAUTION: See safety issues

The wrench must react against a stationary
object.

IMPORTANT: Follow the safety issues

, , , and .

CAUTION:

and

. The reaction force

must be fully absorbed by the reaction arm at
the same level as the socket or Allen-key drive.

CAUTION:

Do not obstruct the reaction

arm movement against reaction point. Keep
hands, hoses and swivel connection away
from reaction arm area.

5.7 Loosening and tightening (continued)

To tighten, operate the pump in the advance
direction by pressing the advance button – refer
to pump instructions. The wrench performs an
angular rotation until it reaches the end of its
rotation cycle. When the wrench stops, release
the advance button to allow the wrench to
automatically retract. You will know when it has
fully retracted as you will not hear a ratcheting
(clicking) sound. Repeat this operation until the
socket or Allen drive no longer rotates.

LOOSEN

TIGHTEN