General Operation - OTC 4278 Manuel De L'utilisateur

All tests should be performed by suitably qualified personnel.
1. Connect the unit to the circuit (see previous page for installation guidance).
2. Ensure the pressure loading valve is fully opened by turning the knob counterclockwise.
3. Switch the unit on. If the display flashes, then the battery needs replacing.
4. Select the desired test using the front panel controls where applicable.
5. IMPORTANT: Ensure all connections are tightened and the oil can flow freely throughout
the hydraulic system BEFORE running the machine at full speed. Check that the circuit is
correctly connected and any shut-off valves are opened. Quick disconnect couplers MUST
be open.
6. Start the pump momentarily to ensure there is no obstruction which could cause pressure
build up.
7. Check for leaks and free flow of oil.
8. The unit is now ready for use - run the machine and adjust the loading valve as needed.
9. When the test is completed fully open loading valve.
Notes
When low pressure testing is required, connect the optional low pressure gauge with automatic
cut-out valve to the flow block.
The unit has an automatic electronic system which shuts the power off after approximately 20
minutes should you forget. To reactivate, switch the unit off then switch on again.

General Operation

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