Technical Bulletin Overheating

“As the summer months near and the heat rises in your facility so does the operating temperature of your machines.  Good Preventative Maintenance practices need to be followed or your machines can fail.  TSG technicians can assist in keeping your machines running in top condition thus minimizing down time and prolonging the life of these machines.  Schedule your Preventative Maintenance Inspection today.”

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Download the original PDF here: 2012-05 Technical Bulletin Overheating

 

 

Fanuc and Mitsubishi Back Ups

“In the past couple of months we’ve noticed an alarming number of back up system failures primarily due to failing back up batteries and lack of backing up systems. Most CNC machines have back up batteries for the controllers, PLC’s and some times the ATC drive units. Each machine needs to be checked for its’ specific configuration.”

“Machines with Mitsubishi PLC’s need to be backed up by an experienced technician with the appropriate software.”

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Download the original pdf here : 2012-01 Backups Tech Bulletin

 

Bellows Covers & PM Inspections

“Bellows Covers:   These specially made covers are used to protect your ballscrews from debris damage.  When these covers get damaged they leave the potential to crash the machine and/or damage the ballscrews.  These covers need to be inspected on a regular basis and repaired or replaced if necessary.”

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Download the original pdf here : 2012-02 Bellows & PM Inspection Shoda Tech Bulletin

NCV and Z Tilt Issues

“As a lot of you probably already know, The NCV-1 ATC drive units are obsolete.  If you would like to get your bad unit repaired, we can have it evaluated and repaired, if possible, via Japan.  Also there is now an updated version of this unit that can be purchased and it is a direct replacement per Shoda.  Please contact TSG parts for more information on repair or replacement of these units.”

“We have come across an issue that has occurred in several machines.  Problem: Rear section of Z axis tilting and loose.  Unless familiar with issue it may be hard to determine if problem exists.”

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Download the original pdf here : 2011-08 NCV and Z Tilt Shoda Tech Bulletin

Table Bearing Failure

Click here to view replacement table bearings

 “There are a lot of machines that are older than 10 years and haven’t had any work to their tables.  The tables are the most used axis and the most susceptible to debris damage.  We would recommend a bearing change if you’ve had greasing failure in the past or if you still have the original bearings.”

“Lack of grease causes premature wear to rails.  We would recommend that bearings be replaced, grease fittings be flushed and then the table has to be properly tensioned.”

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Download the original pdf here : 2011-04 Table Bearings Shoda Tech Bulletin

Machine parameters, PLC’s and programs. Back up Batteries

“I cannot emphasize enough how important it is to change your Fanuc back up batteries on a regular basis especially if your machine will be shut down for any length of time. Every 6 months if machine is kept powered down.

Note: Batteries must be replaced with the power on the machine, and with Extreme Caution.”

“PLC can only be backed up by a trained technician with special software on most machines. TSG will take care of all back ups during a thorough PM inspection of your machine.”

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Download the original pdf here : 2010-11 Shoda Tech Bulletin Parameters

Safety Item for All Shoda Machines

“On the majority of Shoda Routers, the Z axis is held up by a lock pin during shut down and removal of power and air from the machine. Unfortunately human error and mechanical failure occur more often than not. The most frequent failure with the Z axis is caused by leaving the machine powered on with no E stop set; somebody turns off the air compressor and or the air system fails and the Z axis crashes to the table causing damage to the motors, Z axis and or Z axis servo motor. TSG has come up with a fix that has already saved one company an expensive repair bill during a catastrophic air system failure.”

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 Download the original pdf here : 2010-05 LAP SAFETY Tech Bulletin 0510

Mitsubishi PLC Backup Battery Replacement (Hitachi PLC not necessary)

“This month I have a crucial topic that needs to be addressed as most machines still have their original Mitsubishi PLC back up batteries installed. If battery fails Machine PLC will be lost upon power down of machine. These batteries need to be replaced ASAP and you will want to keep a record of replacement date. Please pay special attention to notes below.

Location: Left side of Mitsubishi PLC in Electrical Cabinet.

CAUTION: PLC needs to be backed up prior to Battery replacement. Special Software needed to perform this procedure. This procedure should be performed by a Qualified Technician only or verify with TSG if PLC back up has been performed.  Extreme Caution: Battery replacement must be performed with power on. Shock Hazard.”

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 Download the original pdf here : 2010-04 Mitsubishi Back Up Battery Shoda Tech Bulletin

Maxxim Z-Axis Issues

“Over recent months I’ve been doing an engineering investigation into the primary causes for the Z axis crashes on this specific machine. The primary cause for failure is improper shut down procedures (Machine being left on over night with air turned off). During my investigation I’ve also found several serious machine issues that need to be addressed.”

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Download the original pdf here :  2009-11 Shoda Maxxim Z axis issues.

Motor Lubrication

“Monthly Topic:   Motor Lubrication

Whether you have Greased style or Oil mist motors, it is crucial that the correct lubrication be maintained at all times.  The oil mist units below are to be adjusted to 1 drop every two seconds with the main air set at .17mpa.   Note:  Must adjust to motor configuration.  Example:  If you run all motors down and on then adjust oil mist and air with all motors down and on.  A more thorough explanation of the adjustment procedures is provided with a PM inspection by TSG.”

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Download the original pdf here : 2008-10 Shoda Tech Bulletin Motor Lubrication