Hawk-industries Hawkjaw Sr. Manual 100K-2GSR Serial Numbers 101 to Manuel d'utilisateur Page 74

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74 Troubleshooting
Trouble Shooting
Push in the "E" stop button. Access the main
hydraulic block. See Maintenance & Repair &
Drawings. Use a 7/32" allen wrench to adjust the VR/
L sandwich valve H6 flow settings at each end.
Rotate clockwise to reduce speed and counter-
clockwise to increase speed of the Raise/Lower
cylinder. Pull out the "E" stop button to test
settings. Repeat process if necessary.
Push in the "E" stop button. Access the main
hydraulic block. See Maintenance & Repair &
Drawings. Use a 7/32" allen wrench to adjust the VF/
B sandwich valve H6 flow settings at each end.
Rotate clockwise to reduce speed and counter-
clockwise to increase speed of the Tilt cylinder. Pull
out the "E" stop button to test settings. Repeat
process if necessary.
The mount arm thrust bearing plates are reversed.
Properly connect the mount arm thrust bearing
plates. See Drawings.
The mount arm thrust bearings are worn out.
Replace the mount arm thrust bearings. See Draw-
ings.
Properly connect the Winch hoses to the Winch
Motor. See Drawings.
Check that the Winch On and Winch Off air hoses are
properly connected to the Winch Valve. See Draw-
ings.
Check that the Winch On and Winch Off air hoses are
properly connected in the Right control handle. See
Drawings.
Check that the Winch is engaged. See Installation.
Make sure the "E" stop is pulled out.
Check to make sure the hydraulic power unit is
producing 2500 psi at 20-35 gpm.
Check that the HawkJaw is getting at least 100 psi air.
Check that the pump pressure compensator setting
is at 2500 psi.
Check that the hydraulic filter element is not com-
The Raise/Lower Cylinder moves at an
undesired speed
The Tilt Cylinder moves at an undesired
speed.
The mount arms do not pivot freely.
Push in the Winch On orWinch Off button,
and the HawkJaw moves opposite the
desired direction.
Winch does not operate.
Problem Remedy
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