Troubleshooting - Stanley CS25 User Manual

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.
When diagnosing faults in operation of the pole chain saw, always make sure the hydraulic power source is supplying the
correct hydraulic fl ow and pressure as listed in the table. Use a fl owmeter know to be accurate. check the fl ow with the
hydraulic fl uid temperature at least 80
PROBLEM
Cuts slow.
Bar turns color.
Tool does not run.
Tool runs backwards.
Oil leakage around drive sprocket.
On/Off trigger is hard to press.
Motor sections oil leakage.

TROUBLESHOOTING

o o
F/27 C.
Insuffi cient fl uid fl ow or low relief valve
setting.
Chain dull.
Backpressure too high.
Insuffi cient oiler fl ow.
Power unit not functioning.
Coupler or hoses blocked.
Mechanical failure.
Pressure and return hoses reversed.
Motor shaft seal failure.
Pressure and return hoses reversed.
Backpressure too high.
Motor face seal failure.
CAUSE
18
SOLUTION
Adjust fl uid fl ow to proper gpm. for op-
timum performance adjust relief vlave
to 2250 psi/155 bar.
Sharpen per instructions or replace.
Should not exceed 250 psi/17 bar at
rated fl ow measured at the end of the
tool operating hoses.
Adjust oiler per service instructions.
Check power unit for proper fl ow and
pressure 4-6 gpm/15-22 lpm at 1500
psi/104 bar minimum for CS28. 7-9
gpm/26-34 lpm at 1000 psi/70 bar
minimum for the CS25.
Remove obstruction.
Disassemble tool and inspect for dam-
age.
Correct for proper fl ow direction.
Motor shaft rotates clockwise.
Replace as required. Make sure that
oil present is not the result of excess
oiler fl ow.
Correct for proper fl ow direction.
Should not exceed 250 psi/17 bar at
rated fl ow measured at the end of the
tool operating hoses.
Replace as required.