Troubleshooting - Greenlee H4910A Instruction Manual

Troubleshooting

Before You Begin
1. Tool must be connected to the correct power
source system. Refer to "Specifications" for type of
hydraulic system required. Verify the power source
hydraulic system.
2. Verify that pressure and return hydraulic hoses are
connected properly to the tool and power source
ports.
3. Power source reservoir must be filled to FULL level
with hydraulic fluid.
4. Start the power source. All power source shut-
off devices must be engaged or opened (clutch
engaged, separate ON/OFF valves open, etc.).
5. After verifying all of the above, check the tool to see
if it operates.
If the tool does not operate, it will be necessary to
pinpoint the tool, hoses, or power source as the
problem area. The following steps will help to deter-
mine the problem area.
Greenlee / A Textron Company
Determining the Problem Area
1. Check power source flow and pressure if the proper
gauges and tools are available. If these items are
not available, proceed to Step 2.
2. Stop power source. Disconnect existing tool from
the hydraulic hoses and power source.
3. Connect a known working tool to the hoses and
power source. See the tool's operator's manual for
correct hook-up procedure. Start the power source.
• If the known working tool operates, the problem is
in the disconnected tool. Refer to the
Troubleshooting chart in this manual.
• If the known working tool does not operate, the
problem is likely to be in the hoses or the power
source. Proceed to Step 4.
4. Stop the power source. Disconnect the existing
hydraulic hoses from the known working tool and
power source.
5. Connect a different set of hoses to the known
working tool and power source. Start the power
source.
• If the known working tool operates with the
different set of hydraulic hoses, the problem is in
the dis connected hoses.
• If the known working tool does not operate,
the problem is in the power source. Refer to
your power source operator's manual for
troubleshooting.
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4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
H4910A Pole Puller