Hawk-industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 Manuel d'utilisateur télécharger pdf (Page 70)

Trouble Shooting

Symptom Remedy

Movement

at Start-up

Spinner doors close.

Torque Cylinder extends.

l If the bottom Grip button is pushed in and the Spin

button is stuck in, the spinner will operate. Pull out

the bottom Grip button. If the Spin button sticks,

screw off the button, and clean thoroughly. If the

button still sticks, replace the Spin button air

valve. See Drawings, p. 112, 118.

l Make sure the hydraulic power unit is shut down.

Pull out all Grip buttons. With the Grip buttons

pulled out, no air should reach the Spin hydraulic

valve. Disconnect the green air hose to Port B on

the Spin hydraulic valve. To disconnect the air hose,

push the hose and collet ring into the valve pilot port.

While holding down the collet ring, pull out the green

air hose. If no air comes out of the hose, replace

the Spin hydraulic valve V5. See Drawings, p. 102,

108. If air comes out of the hose, replace the Air

logic manifold. See Drawings, p. 110.

l Properly connect the Pressure and Tank lines. See

Operation, p. 14.

l If the Torque button sticks, screw off the button,

and clean thoroughly. If the button still sticks,

replace the Torque button air valve. See Draw-

ings, p. 112, 118.

l Properly connect the Rod side and Cap side hoses

to the Torque cylinder. See Maintenance & Repair,

p. 54-56, Drawings, p. 114.

l Properly connect the Rod side and Cap side hoses

to the Main Hydraulic manifold. See Drawings, p.

114.

l Make sure the hydraulic power unit is shut down.

Check to see that the Grey air hose goes to Port A

and the Blue air hose to Port B on the Torque

hydraulic valve. See Drawings, p. 108.

l The Torque button air valve may be stuck in.

Push in the Torque button. Air should sound like it

is being exhaled, and then the air sound should cease.

If the air exhale sound followed by silence does

not occur, replace the Torque button air valve.

Troubleshooting

Continued on next page.

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Hawk-industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 Manuel d'utilisateur Page 70

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