Hawk Industries Hawkjaw Sr. Manual ALS Serial Numbers 1 to 100 - Manual (Page 82)

Trouble Shooting
82 Troubleshooting
Symptom Remedy
Torque
Button
z
Make sure the Selector switch is set correctly.
Make sure the correct wrenches are gripped on the
pipe. For make up, see Operation, p. 20-23. For
break out, see Operation, p. 26-28.
z
Make sure the "E" stop is pulled out.
z
The Grip button must be pushed in for the
HawkJaw to torque. Make sure the Grip button is
pushed in before the Torque button is pressed.
z
If the Torque Set knob is rotated counter-
clockwise as far as the knob will turn, the Torque
Cylinder will not extend. Before torquing, make
sure the torque is set. See Operation, p. 22.
z
Check that the HawkJaw is getting at least 100 psi
air.
z
Check to make sure the hydraulic power unit is
producing 2500 psi at 20-35 gpm.
z
Check that the pump pressure compensator setting
is at 2500 psi.
z
Check that the hydraulic filter element is not
completely full of contaminants. If the red indicator
button on the hydraulic filter body pops up, change
the filter element. See Filter Maintenance, p.35.
z
Check that no hissing sound comes from the Torque
air button. An air hose is broken, switched or
disconnected if there is a hissing sound. Locate the
leak, and replace the hose or connect the hose
properly. See Drawings, p. 132, 128.
z
Check that the Torque button air valve works.
Make sure the hydraulic power unit is shut down.
Press the Grip button repeatedly to bleed hydraulic
pressure. Push in Grip, and press Torque. Air
should sound like it is being sharply inhaled. Re-
lease the button. Air should sound like it is being
sharply exhaled. If these sounds do not occur,
replace the Torque button air valve. See Draw-
ings, p. 132, 128.
Push in the Torque button, and
the HawkJaw does not perform
as desired.
Push in the Torque button, and
nothing happens.
Continued on next page.