Bosch CH-47976 User Manual page 8

Before beginning any tests, make sure the equipment and the test
environment are safe
• Test area should be well ventilated.
• When working on and underneath the vehicle, make sure it is properly supported on a hoist
or jack stands.
• When removing the fuel cap , make sure to turn the vehicle off.
• When removing the fuel cap, do so slowly. Allow any pressure to decay before fully removing
the cap.
• When connecting or disconnecting to a fuel line, always make sure to relieve the system
fuel pressure.
Ensure you have proper leak-free connections
• Check all equipment connections before, during and after testing.
• Do not pinch or kink tubing.
• Secure hose clamps when using hose adapters.
• Before connecting fuel lines and hose fittings, apply a few drops of clean engine oil to male
ends to ensure proper connection with female connectors.
• Tug firmly on quick-connect fittings to check for proper connection.
• Make sure the safety catch is seated the adapter groove of any quick-connect couplers.
Use the equipment properly
• Do not use this tester on diesel high pressure fuel lines (100 psi is max.)
• Do not disassemble the FMU. This can cause damage leakage and will void your warranty.
• Do not disassemble the Control Unit except to access the fuse and EPROMs during
replacement. This will void your warranty.
Safety Information
Active Fuel Injector Tester User Guide 3