depending on the age, quality and wall thickness of the small diameter
tubing.
4. Pull the pump handle until the correct tube diameter is reached.
Normally 16 –22 pumps depending on the size of the expander head
used.
5. Press the thumb release button to loosen and release the expander and
remove from the expanded pipe.
6. Use the saved power for the next step.
7.0 MAINTENANCE
For smooth operation, we recommend removing the expander head and
re-grease the thrust cone after expanding 20 tubes. (Multi-purpose
grease).
It is very important to keep the expander heads and the thrust cone free of
dirt and debris. If debris enters the back side of the expander heads or the
thrust cone, you risk the tool sticking in the expanded position.
Please keep the thrust cone and expander heads clean to ensure proper
operation.
7.1 Filling up hydraulic oil
It is possible to refill HY-EX hydraulic oil in the expander after 10’000 or
more usages.
Warning
The addition of hydraulic oil should be carried out at a suitable location, as
it is possible that oil might be spilled during re-filling and bleeding process.
Procedure:
1. Secure the HY-EX head down / handle up in a bench vice.
2. Unscrew the main handle anti-clockwise. Use a strap wrench to avoid
marring the tool’s finish.
3. Pull out the plug from the oil reservoir.
