Trumpf quicksharp, Operator'S Manual, Page: 21 / 95

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