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Malfunction
Grinding takes longer than 5 min.
Green pin is not visible after
grinding is completed
Grinding does not start, nothing is
ground off
Grinding motor stops, cannot be
switched on again
-1
Rotary tool holder < 20 min
Grinding
wheel
is
"burning"
(smoking), loud grinding noises,
rough grinding effect
Grinding coolant and hydraulic oil
are frothing in the container
The fixture is pulled off the rotary
tool holder during grinding
There is no intake of grinding
coolant and hydraulic oil
18
quicksharp
6.
Troubleshooting
Cause
• Hydraulic oil is too cold
• Throttle valve setting is wrong
• Dirt in hydraulic system
• Cam does not reverse
• Air in hydraulic system
• Pressure at relief valve too low
• Wrong setting of locating
stop and screw
• During setup, the locating stop
did not come to rest on the tool
Motor overload due to excessive
grinding pressure
Dirt or air in hydraulic system
• Grinding wheel is blunt
• Grinding pressure too high
• Grinding coolant not directed at
grinding wheel
• No grinding coolant flow
• Too little grinding coolant in
container
• Intake filter clogged
• Air is being drawn in, the line
has a leak
• Fluid level is too low
Fixture not properly clamped onto
the rotary tool holder
Intake hoses are bent
Remedial action
• Let machine warm up
• Set cycle time
• Let hydraulic cylinder run
with throttle valve open,
then return to original setting
(cycle time 3 1/2 - 4 1/2 min)
• Inspect the hydraulic hoses
• Inspect the pressure relief valve
+4
(22
bar), install an external
pressure gauge
• Adjust locating stop and setting screw
• Required clearance between bottom of
grinding wheel and top of stop:
0.1 mm
Release the brake with screwdriver
SW6, raise the top, set cycle time
• Remove and clean the cover on the
drive/rotary tool holder
• Check hydraulic lines for air leaks,
Inspect the pressure relief valve
• Sharpen the grinding wheel
• Set cycle time to 3 1/2 - 4 1/2 min
• Adjust the grinding coolant tubes
Distance to wheel face: 1 mm
• Add grinding coolant
• Clean intake filter
• Inspect all lines for leaks
• Fill container up
Push clamping jaws upward, make sure
the diameter of the fixture is 150
Position the hoses correctly, replace
them if necessary
h11
B60E
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