Hydraulic Torque Wrench Operation and Maintenance Manual
7
120
175
2030 19894 3050 29890 4060 39788 4873 47756 6090
59682
NOTE:
The figure of the chart is the Max torque of the bolting, the recommended torque is 70~80% of chart figure
For instance: M48, strength grade is 8.8, the torque is 3920×80%=3136N.m
Four: OPERATION
CONNECTING THE TOOL
The wrench and power pump are connected by a 700 BAR operating pressure, twin-line hose assembly.
Each end of the hose will have one male and one female connector.
Assure proper interconnection between pump and wrench.
JHM 05
DRIVE DIRECTION CHANGE
To remove the square, disengage the drive retainer assembly by depressing the center round button and
gently pulling on the square end of the square drive. The square drive will slide easily out.
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. Depress drive
retainer button, engage retainer with drive and release button to lock.
SETTING THE REACTION ARM
All JHJX’s Torque wrenches are equipped with a universal reaction arm. These reaction arms are employed
to absorb and counteract forces created as the unit operates. The reaction arm should extend in the same
lnsure the connectors are fully
engaged and screwed snugly
and completely together.
FLG 4
Right is tight.
Left is loose.
FLG 5