Troubleshooting - Textron Greenlee H8508 Serie Manuel De L'utilisateur

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 identify the item that is not operating.
Problem Probable Cause
Tool does not Improper power source.
operate.
Hydraulic fluid level low.
Incorrect hydraulic fluid viscosity.
Hose connections at tool reversed.
Variable torque output screw turned
too far clockwise, completely stopping
the flow of hydraulic fluid.
Tool operates Hydraulic fluid cold.
slowly or
erratically.
Power source not adjusted correctly.
Air in the hydraulic system.
Incorrect hydraulic fluid viscosity.
Variable torque output screw incor-
rectly set, limiting hydraulic fluid flow.
Flow control cartridge not operating
properly.
Tool feels hot. Hydraulic fluid level low.
Incorrect hydraulic fluid viscosity.
Hydraulic fluid dirty.
Greenlee / A Textron Company
H8508 Series Impact Wrenches
If the problem is in the tool, see the troubleshoot-
ing table below. If the problem is in the power source,
see the troubleshooting section of the power source
instruction manual.
Probable Remedy
Refer to "Specifications." Verify that the power
source meets the specifications.
Check the fluid level. Check system for leaks.
Refer to "Recommended Hydraulic Fluids" in the
"Specifications" section.
Depressurize hydraulic system. Switch the hose
connections.
Turn variable torque output screw counterclockwise
to achieve the necessary amount of torque.
Allow fluid to warm to the operating temperature.
Actuate the tool intermittently to reduce the warming
time.
Refer to the power source operator's manual for
setting the flow and pressure. Set the flow and pres-
sure to correspond with the tool.
Refer to the power source manufacturer's instruc-
tions for removing air from the system.
Refer to "Recommended Hydraulic Fluids" in the
"Specifications" section.
Turn variable torque output screw counterclockwise
to increase the flow until desired output is obtained.
Remove and clean cartridge. Do not disassemble
cartridge. Install a new, factory preset cartridge.
Check the fluid level. Check system for leaks.
Refer to "Recommended Hydraulic Fluids" in the
"Specifications" section.
Drain reservoir, flush, and fill with clean fluid.
Change filter.
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