9.6
Preload Oil Pressure Verification
The E-Multi controller uses a pressure transducer in the injection pressure oil
circuit to monitor injection pressure during the injection cycle. The pressure in
the circuit should be within specifications shown in Table 9-7.
9.6.1 Check the Preload Oil Pressure
WARNING
Do not open the high pressure port plugs. High pressure port plugs have
plastic plug caps installed to prevent accidental opening.
1. Always check with E-Multi injection unit preload pressure at operating
temperature and idle pressure.
2. On the controller, tap the Operation Mode Select button and choose Set
Up mode. Check the [
F1
] LED. If it is not blinking, press the [
F1
] button to
put the controller into setup mode.
3. Check the screw position. If the position is greater than half the stroke,
move the screw to the half stroke position, and then move the screw back
approximately 25 mm (1.0 in.) further.
This will decompress the screw and make sure the pressure value is
showing idle pressure.
4. Check the pressure reading on the controller.
If the pressure is below the lower limit, the high pressure circuit will need
to be recharged using the E-Multi oil fill kit.
5. Navigate to the screw settings page. Verify that the actual voltage is
within the limits in Table 9-7.
9.6.2 Assemble the Injection Pressure Oil Fill Kit
NOTE
The oil fill kit may have been supplied with the E-Multi injection unit and is
also available from
Mold-Masters
. The fill kits are supplied without oil. The
oil circuit requires 75W-90 synthetic gear oil.
High pressure oil fill kit components:
• Oil gun
•
Tee with fittings
• Pressure gauge
• Flexible hose, 2 m (6.6 ft) with quick connects
1. Thread the gauge into the tee and tighten.
2. Fill the gun with 500 ml (16.90 oz) of the 75W-90
synthetic oil.
3. Connect the tee to the quick disconnect port on the injection housing.
4.
Connect the flexible hose to the oil gun and tee.
9-4
E-Multi User Manual
MAINTENANCE
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