Hawk Industries Hawkjaw Sr. Manual ALS Serial Numbers 1 to 100 - Manual (Page 95)

Trouble
Shooting
Troubleshooting 95
Trouble Shooting
z
Check that the HawkJaw is getting at least 100 psi
air.
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 Winch
On or Winch Off 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.130,128.
z
Check that the Winch On and Winch Off button air
valves work. Disengage the winch. See Installation,
p. 16. Push in the button. Air should sound like it
is being sharply inhaled. Release the button. Air
should sound like it is being sharply exhaled. If
these sounds do not occur, replace the Winch On
and/or Winch Off button air valve. See Drawings,
p. 132, 128.
z
Check the Winch sandwich valve H6 flow setting.
No fluid will flow to the Winch if the flow setting is
rotated clockwise to refusal. See Trouble Shooting,
"Winch moves at an undesired speed". p. 95.
z
Check that the winch valve is shifting. Press Winch
On. The hose to the Winch Motor Port A should
pressure up. Press Winch Off. The hose to the
Winch Motor Port B should pressure up. If either
of these tests fail, replace the Winch hydraulic
valve. See Drawings, p. 136, 128. If the hoses
pressure up, the winch needs repair. See Drawings,
p. 134.
z
Use a 7/32" allen wrench to adjust the Winch
sandwich valve H6 flow settings at each end. See
Drawings, p. 136. Rotate clockwise to reduce
speed and counter-clockwise to increase speed
of the winch on and off the pipe. Use Winch On and
Winch Off to test. Repeat process if necessary.
Symptom Remedy
Winch does not operate. (cont.)
Winch moves at an undesired
speed.
Winch (cont)