Bosch CH-47976 User Manual page 9

Safety Information
Check all parts periodically, clean and replace if necessary.
Make sure the equipment is in good working condition. This tester is a precision instrument—
keep it clean and repair (or replace) any damaged parts. This includes:
• Fuel injection parts for signs of wear.
• O-ring seal retainers at the FMU/FAH connections for signs of wear; make sure the
connection is tight.
• Glass housing at the FMU/FAH connection for chips or cracks, especially at the edges.
4 Active Fuel Injector Tester User Guide