© 2022 Genesis Attachments, LLC
Genesis GXT Mobile Shear
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HYDRAULIC START-UP
Genesis shears are designed to operate under full excavator pressure or up to 5500 PSI. Due
to these high pressures, it is important that air is bled from the shear cylinder after installation.
Failure to follow these procedures could result in cylinder seal damage and/or excavator hydraulic
system damage.
Start-up Procedure
3
Check the excavator hydraulic tank for proper fluid level.
3
Excavator oil should be warmed up before hooking up shear lines in cold weather. If oil
is cold, air from the cylinder will be pushed into the oil tank, causing the oil to foam. This
problem takes hours to correct and may cause pump cavitation.
3
Follow the OEM procedures for starting and warming the excavator hydraulic system. Do
not operate the shear circuit during the warm-up period.
3
After the excavator has reached normal operating temperature, set the engine to idle
speed.
3
The shear must be vertical. Do not allow the tank to run low - have someone watch the oil
gauge.
3
Slowly fill the bore end of the shear cylinder to partially close the jaws.
3
Slowly fill the rod end of the shear cylinder to open the jaws. Use partial strokes extending
and retracting, slowly working to full strokes.
3
Stop and check the excavator hydraulic fluid level again to be sure there is still sufficient
fluid. Service as required. The hydraulic fluid level should be checked with the shear jaws
open (cylinder retracted).
3
Cycle the shear jaws five or six strokes before increasing to full operating pressure.
Do not fully extend or retract the shear cylinder with the
first cycles.
NOTICE