CO23
User
Manual ◄ 13
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 cutoff saw, always check that the hydraulic power source is supplying the
correct hy draulic flow and pressure to the cutoff saw as listed in the table. Use a flow meter known to be accurate.
Check the flow with the hydraulic oil temperature at least 80 °F/27 °C.
PROBLEM
CAUSE
REMEDY
Tool does not run.
Power not functioning.
Check power unit for proper flow and
pressure (15 GPM at 2000 psi/56
LPM at 140 bar).
Coupler or hoses blocked.
Remove obstruction.
Mechanical failure.
Disassemble tool and inspect for
damage.
Tool runs backwards.
Pressure and return reversed.
Correct hose connection or flow
direction. Motor shafts with right-hand
threads rotate counterclockwise,
motor shafts with left-hand threads
rotate clockwise.
Oil leakage between motor housing
and on-off block or motor.
Oil tube O-ring failure.
Replace as required.
Motor face seal failure.
Replace as required.
On-off trigger is hard to press.
Back pressure too high.
Should not exceed 250 psi at 15
GPM/17 bar at 571 pm measured at
the end of the tool operating hoses.
Pressure and return reversed.
Correct for proper flow direction.
Saw cuts too slow.
Insufficient oil flow or low relief valve
setting.
Adjust oil flow to proper GPM. For
optimum performance adjust relief
valve to 2250 psi/155 bar.
Wrong wheel for material being cut.
Use correct wheel.
Saw gets hot.
Hot oil or excessive oil flow.
Check power unit for adequate
cooling; should maintain fluid at or
below 140 °F/60 °C. Power unit may
be producing more flow than the
saw will accept under the existing
cutting conditions. Reduce flow until
saw performance starts to drop off.
TROUBLESHOOTING