Textron Greenlee Utility F20 Manual Del Usuario página 15

Troubleshooting (cont'd)
Problem
Tool used with power unit operates
erratically.
Tool used with power unit feels hot.
Tool used with power unit operates
backward.
Greenlee / A Textron Company
Probable Cause
Hydraulic fluid cold.
Hydraulic fluid level low.
Incorrect hydraulic fluid viscosity.
Air in system.
Hydraulic oil flow (gpm) incorrect for
tool being used.
Hydraulic filter needs service.
Power unit components (pump,
valve, etc.) worn or damaged.
Engine output insufficient. Engine
needs adjustment, tune-up, etc.
Hydraulic fluid level low.
Hydraulic fluid viscosity too light.
Hydraulic fluid dirty.
Hydraulic oil flow (gpm) incorrect for
tool being used.
Hydraulic flow to tool reversed.
Hydraulic pressure and return lines
connected to incorrect power unit or
tool ports.
15
F20 Portable Power Unit
Probable Remedy
Viscosity of oil may be too high at
start of tool operation. Allow oil to
warm to operating temperature.
Actuating tool intermittently will
reduce time required to warm oil to
an efficient operating temperature.
Check fluid level. Fill to FULL mark.
Check system for leaks.
Use fluid viscosity recommended.
Refer to "Recommended Hydraulic
Fluids."
Check pump suction line for damage
or loose clamps. Tighten clamps or
replace components if necessary.
Fill reservoir.
Adjust engine rpm to achieve correct
flow (gpm) for tool being used.
Replace hydraulic filter.
Repair or replace components.
Refer to the engine operator's
manual.
Check fluid level. Fill to FULL mark.
Check system for leaks.
Use fluid viscosity recommended.
Refer to "Recommended Hydraulic
Fluids."
Drain reservoir, flush and fill with
clean fluid. Change filter.
Adjust engine rpm to achieve correct
flow (gpm) for tool being used.
Reverse flow to tool. Check for valve
in system that has reversed flow.
Check hoses for proper flow.
Disconnect hoses. Reverse couplers.
Reconnect hoses to proper power
unit and tool ports.
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