CAUTION!
Risk of damage to the sealing surfaces. Hot runner nozzles must be at room temperature
(<25 °C or <77 °F) before removing or installing the cavity plate to avoid damage to the
sealing surfaces.
6.14.1 Removing the Cavity Plate On a Work Bench
To remove the cavity plate from the hot runner when the assembly is on a work bench, do the
following:
NOTE:
The following procedure requires the use of an overhead lifting device. Refer to Section 4.1 for
lifting and handling instructions.
CAUTION!
Mechanical hazard – risk of damage to the hot runner. Make sure all valve stems are in the
open position during tool shutdown.
1. Remove the hot runner and cavity plate assembly from the machine and set it on a work
bench with the nozzles facing up. Refer to Section 4.2 for more information.
CAUTION!
Mechanical hazard – risk of damage to the nozzle sealing surfaces. The temperature of the
nozzle tips must cool to room temperature <25 °C (<77 °F) before the cavity plate is
removed. Damage to the nozzle sealing surfaces will occur if the temperature is too high.
2. Remove the screws that secure the cavity plate to the hot runner.
WARNING!
Crushing hazard – risk of death or serious injury. Inadequate lifting equipment can fail and
could cause death or serious injury. Make sure all lifting equipment is rated for the load and
in safe operating condition.
3. Install hoist rings in the designated lifting points marked on the cavity plate.
CAUTION!
Mechanical hazard – risk of damage to the mold and hot runner. Lift the cavity plate slowly
until the alignment dowels are cleared. Damage to the cavity plate and/or alignment
dowels could occur.
v 2.2 — March 2021 Unify Manifold System
98 Removing the Cavity Plate On a Work Bench
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