Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
14
HRD-1 and HRD-58 Hydraulic Ground Rod Drivers
Troubleshooting
Before troubleshooting, determine whether the
problem is in the tool, the hoses, or the power source.
Substitute a tool, hoses, or power source known to be
in good working order to eliminate the item that is not
operating.
Problem
Probable Cause
Probable Remedy
Tool does not operate.
Improper power source.
Verify that the power source meets the
specifications.
Hydraulic fluid level low.
Check the fluid level. Check system for leaks.
Incorrect hydraulic fluid viscosity.
Use hydraulic fluid with the correct viscosity.
Tool operates slowly or
erratically.
Hydraulic fluid cold.
Allow fluid to warm to the operating tempera-
ture. Actuate the tool intermittently to reduce
the warming time.
Power source not adjusted
correctly.
Refer to the power source operator’s manual.
Set the flow and pressure to correspond with
the tool.
Hydraulic fluid level low.
Check the fluid level. Check system for leaks.
Air in the hydraulic system.
Refer to the power source manufacturer’s
instructions for removing air from the system.
Incorrect hydraulic fluid viscosity.
Use hydraulic fluid with the correct viscosity.
Tool feels hot.
Hydraulic fluid level low.
Check the fluid level. Check for leaks.
Incorrect hydraulic fluid viscosity.
Use hydraulic fluid with the correct viscosity.
Hydraulic fluid dirty.
Refer to the power source owner’s manual for
procedure to replace hydraulic oil and filter.
Strike rate is normal;
blow energy is weak.
Low accumulator gas pressure.
Return tool to a Greenlee Utility Authorized
Service Center.
Broken accumulator diaphragm.
Return tool to a Greenlee Utility Authorized
Service Center.
If the problem is in the tool, refer to the troubleshoot-
ing table below. If the problem is in the power source,
refer to the troubleshooting section of the power
source instruction manual.
