Hawk-industries Hawkjaw Jr. Manual 65K-2GJR Serial Numbers 21 to 3 Manuel d'utilisateur télécharger pdf (Page 65)

Trouble Shooting

Symptom Remedy

Troubleshooting

Continued on next page.

While torquing pipe, a desired

torque setting cannot be achieved

or the torque control valve will

not effect the torque output of

the Hawkjaw.

 The Hawkjaw may have an obstructed tank lead-in

hose or quick disconnect. Clear the tank line ob-

struction and or tighten or replace tank line quick

disconnect.

 Make sure the Low Torque Warning System pressure

and tank hoses are properly connected.

Hydraulic fluid heats up.

 Check that the pump pressure compensator setting

is at 2600 psi. If the pump pressure compensator

setting is above the pressure relief valve setting on the

HawkJaw or the pressure relief valve setting on the

hydraulic power unit, the hydraulic fluid will heat up

rapidly.

 There is a leak in the hydraulic system.

 Check that the pump pressure compensator setting

is at 2600 psi. If the pump pressure compensator

setting is above the pressure relief valve setting on the

HawkJaw or the pressure relief valve setting on the

hydraulic power unit, the hydraulic fluid will heat up

rapidly.

 There is a leak in the hydraulic system.

 If there are no leaks in the hydraulic system, and the

pump pressure compensator setting is at 2600 psi on

a known, tested hydraulic power unit, and the hydrau-

lic power unit pressure relief valve is set above the

pump pressure compensator setting and the hydrau-

lic fluid still heats up, then the pressure relief valve

setting on the HawkJaw has been changed. The

pressure relief valve adjustment is set at Hawk Indus-

tries. Under no circumstances should this pressure

relief valve be adjusted. Adjusting the pressure relief

valve setting voids the warranty and can cause

severe damage to the HawkJaw and the hydraulic

power unit and shorten component life. However, if

this valve has been adjusted below 2600 psi, and the

pressure compensator setting is at 2600 psi, the

hydraulic fluid will pass over the pressure relief valve.

This will heat up the hydraulic fluid rapidly. Properly

set the pressure relief valve adjustment. On a

Trouble

Shooting

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Hawk-industries Hawkjaw Jr. Manual 65K-2GJR Serial Numbers 21 to 3 Manuel d'utilisateur Page 65

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