910193 - Hydraulic Impact Wrench
Phone: (262) 637-9681
4.2021 Rev 2.1
Page
10
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30
Installation
Unpacking Instructions
Upon receiving your Hydraulic Impact Wrench promptly remove it from the shipping container. Always
keep top side of container up. Inspect unit for damage which may have incurred during shipping and
report it to carrier for claim.
Tool Preparations
The Hydraulic Impact Wrench requires some assembly before use. If the tool is used in cold weather,
preheat the hydraulic fluid by running power source at low engine speed.
Fluid temperature should be at or above 50° F/10° C (400-ssu / 82 centistoke) before use, when
using recommended fluids. Using too thick of fluid may result in tool damage.
Never stick foreign objects, fingers, or other extremities into
moving mechanism. Failure to follow these instructions may lead
to severe personal injury or tool damage.
Check Power Source
1. Using a
calibrated flow meter and
pressure gauge, check that the hydraulic power source
develops a flow of
7-12 gpm [20-45 lpm] at 1000-2000 psi [70-140 bar].
2. Check that the hydraulic power source is equipped with a relief valve set to open at 2100 psi
[145 bar] minimum.
3. Check that the hydraulic circuit matches this impact wrench for open-center operation.
An
Open Center Hydraulic Circuit
is a hydraulic system in which the oil circulates at all times.
When the impact wrench is connected in the hydraulic circuit and not activated, the oil bypasses
the impact wrench’s motor returning to hydraulic reservoir.
Only when the trigger is activated, is the hydraulic oil is diverted by an activation spool into the
gerotor motor.
Do not use the Impact Wrench with closed center system or tool
damage may occur.
