Bill Clark
Plastic
- Joined
- Apr 8, 2012
- Location
- Ocoee, Florida
Hey guys, looking for feedback on some issues with my old, reliable VF-2. I am embarrased to say that I have not been keepin up with the maintanence like I should and as a result some issues are popping up. I have always been easy on the old girl though and she sees minimal use these days. nonetheless I need to get the machine back up in decent running shape and would greatly appreciate some help.
issue #1 is noticable when cutting a larger size hole. as the Y axis changes direction I hear a "clunk" like there is some slop. I have not checked to see how round it cuts the hole but today I put an indicator on it and pushed and pulled on the table. I could get close to .0015 in Y and .001 in X (total push+pull).
#2- the spindle will not start when programmed with less than about 1300 rpm (low gear?). it will just osccilate back and forth about 180deg and will continue this until I stop it. I can reduce the rpm to a very slow speed after I start it above 1300.
#3- and this may be related to #2. about 1 in every 10 tool changes the pin will fail to engage and orient the spindle for proper tool change. the spindle will move it just doesnt seem to stop in the correct position for the shot pin to go in.
recently I have disassembled the cleaned the tool release pnuematic system (behind the front cover on the spindle) because the tool would fail to release so that has been resolved.
I have vacuumed the brush dust from all the motors. cleaned and greased all I can see including the screws and put new seals in the gearbox for the tool changer "in and out" motor. It had leaked oil into the motor and I am amazed with the amount of burned on sludge around the armature that it was functioning at all. The z axis encoder was throwing an alarm "z axis motor fault" and it appears the connector at the encoder needed to be reseated. once again amazed because my luck would be that the encoder would need replacing. Is there any other maintanence I should do on top of what I have done? thanks in advance
issue #1 is noticable when cutting a larger size hole. as the Y axis changes direction I hear a "clunk" like there is some slop. I have not checked to see how round it cuts the hole but today I put an indicator on it and pushed and pulled on the table. I could get close to .0015 in Y and .001 in X (total push+pull).
#2- the spindle will not start when programmed with less than about 1300 rpm (low gear?). it will just osccilate back and forth about 180deg and will continue this until I stop it. I can reduce the rpm to a very slow speed after I start it above 1300.
#3- and this may be related to #2. about 1 in every 10 tool changes the pin will fail to engage and orient the spindle for proper tool change. the spindle will move it just doesnt seem to stop in the correct position for the shot pin to go in.
recently I have disassembled the cleaned the tool release pnuematic system (behind the front cover on the spindle) because the tool would fail to release so that has been resolved.
I have vacuumed the brush dust from all the motors. cleaned and greased all I can see including the screws and put new seals in the gearbox for the tool changer "in and out" motor. It had leaked oil into the motor and I am amazed with the amount of burned on sludge around the armature that it was functioning at all. The z axis encoder was throwing an alarm "z axis motor fault" and it appears the connector at the encoder needed to be reseated. once again amazed because my luck would be that the encoder would need replacing. Is there any other maintanence I should do on top of what I have done? thanks in advance