Mold-Masters Hot Runner, User Manual, Page: 207 / 319

15.11 Latches
There are two reasons latches are used in a mold:
1. To tie the mold halves together for transportation and handling.
2. To gain access between two mold plates which are screwed together
during normal mold operation.
Latches are always used in pairs mounted on diagonally opposite sides of the
mold to provide equal pull on the plates.
The latches are located on:
• The operator’s side.
• Non-operator’s side of the mold.
• Top and bottom of the mold.
Under no circumstances are plates to be pulled or handled with only one
latch attached.
Latch locations are shown on the assembly drawings. During mold operation
the latches must be removed from the mold and stored elsewhere.
15.12 Latch the Cavity Plate to the Core Half (Cold
Half)
WARNING
Make sure the machine has been locked out and tagged out in accordance
to the machine’s documented procedures.
Make sure the lifting eyebolt, lifting chain and crane are rated to adequately
support the weight of the plate(s).
Install latches before removing the cavity plate mounting screws. Failure to
do so could cause serious injury.
CAUTION
The nozzles must be within 55°C (130°F) of mold temperature to prevent
damage to Hot Runner and mold components. For cylindrical valve gated
systems, valve pins should be in the open position prior to removal of the
cavity plate to prevent damage.
CAUTION
Use this procedure for reference purposes only. For latch locations, refer to
the assembly drawings.
For additional instructions on latching in the machine refer to the machine
manufacturers manual.
1. Open the mold.
2. Ensure that the machine and Hot Runner controller has been locked out
and tagged out.
3. Apply lockout / tagout to the machine power source and Hot Runner
controller. Refer to the controller and machine manufacturer’s
documentation for procedures.
15-20
© 2020 Mold-Masters (2007) Limited. All Rights Reserved.
MAINTENANCE
Hot Runner User Manual