Troubleshooting - Greenlee fairmont H8508 Instruction Manual

Troubleshooting (cont'd)
PROBLEM
Tool leaks hydraulic fluid.
Tool trigger plunger sticks or
works hard.
Power source works, but tool
lacks power or does not operate.
Power source works, but tool
lacks power and/or impacts
slowly.
Tool appears to operate
normally but lacks impact
power or does not drill.
Grease leaks at anvil
bushing, wrench warm.
Greenlee / A Textron Company
PROBABLE CAUSE
Tool components loose.
Worn or damaged O-rings or gaskets.
Tool components worn or damaged.
Check for dirt or gummy deposits.
Trigger binding (trigger bent, trigger
pivot pin too tight, etc.).
Inappropriate hydraulic system.
Relief valve setting in tool not correct.
Impact mechanism dry. Grease has
been thrown off.
Incorrect grease or overpacked.
Heavy duty cycle, heat caused
grease to liquify.
16
H8508 Hydraulic Impact Wrench
POSSIBLE REMEDY
Tighten component hardware.
Replace worn or damaged O-rings
or gaskets.
Disassemble tool. Replace worn or
damaged components.
Clean components.
Inspect, adjust trigger where binding
occurs.
Check type of hydraulic power source.
open-center or closed-center.
Return tool to factory for service.
Regrease impact mechanism.
See the Maintenance Schedule section
of this manual.
Regrease impact mechanism.
See the Maintenance Schedule section
of this manual.
Normal, mechanism may require
grease more often, see the
Maintenance Schedule section of
this manual.
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