{"id":4265,"date":"2026-06-15T08:29:52","date_gmt":"2026-06-15T15:29:52","guid":{"rendered":"https:\/\/www.rbdinstruments.com\/blog\/?p=4265"},"modified":"2026-06-15T08:29:53","modified_gmt":"2026-06-15T15:29:53","slug":"phi-xps-system-specimen-stage-motor-fix","status":"publish","type":"post","link":"https:\/\/www.rbdinstruments.com\/blog\/phi-xps-system-specimen-stage-motor-fix\/","title":{"rendered":"PHI XPS System Specimen Stage Motor fix"},"content":{"rendered":"\n

The PHI 5400 and 5600 LS (large sample) XPS systems and some of the 5600 and 5700 systems use motors to control the specimen stage via the system control software.<\/p>\n\n\n\n

Over a period of many years, the motors can slow down or suddenly stop moving.<\/p>\n\n\n\n

This blog post will show you how to possibly solve the problem.<\/p>\n\n\n\n

The motors used on the PHI automated specimen stages are TRW precision fractional-horsepower motors. These motors are no longer made but you can sometimes find them on eBay.<\/p>\n\n\n\n

In the example below, this motor was working fine and suddenly stopped moving. Lubricating the motor shaft solved the issue.  If you have a PHI automated specimen stage where a motor is sluggish or stopped working, try lubricating it as shown below. If lubricating the motor does not solve the problem, then the motor might be bad and need to be replaced.<\/p>\n\n\n\n

Procedure<\/strong><\/p>\n\n\n\n

Remove the defective motor from the specimen stage and set it on a flat surface with the white motor cover facing up.<\/p>\n\n\n\n

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