Preparing for Production – Hot Runner Maintenance Guide
This guide includes the blog post below and an adjoining slide deck. The blog post below is a reference guide with links to detailed explanations and visual examples we have compiled over the years (photos and videos). Use the adjoining slide deck for a speedy review of hot runner maintenance best practices. See the bottom of this page for the table of contents.
Download the adjoining slide deck here: >231110-SPAR-Production Ready Maintenance Guide
Read more about Hot Runner Troubleshooting
Training
Firstly, this section focuses on maintenance training and includes our tips, outside resources for reference, 3rd party training opportunities, and a software recommendation to help manage tooling maintenance responsibilities.
Click here for the entire training post: >Training w/ Cleaning & Repair Checklist.
- >Hot Runner Pre-production Checklist
- >MoldMaking Technology Article
- Special Note: You Must Check Grounding the Hot Runner, Mold Box, Cables, Controller, and Incoming Power!
- >Hot Runner Troubleshooting & Repair Course – American Injection Molding Institute
- >MoldTrax Tracking Software
Hot Runner Cable Testing
Secondly, Click here for the full post: >The Problem with Hot Runner Cable Testing
- Easy to Make Mistakes
- Importance of Checking for Shorts
- Time-Consuming
- >Connector Anatomy and Typical Problems
Hot-Half Inspection
Click here for the full post: Hot-Half Wiring Inspection the Old Way vs. MoldXChecker®
- Includes How to Test:
- Resistance of Heaters and Thermocouples
- Direct Shorts
Further, please check your Productivity Series, Topic 2 Maintenance email for downloads of our Maintenance Guide for Fast Heat Hot Runner Controllers.
Adjoining Slide Deck Table of Contents:
Slide 1 – Intro
Slide 2 – Production-Ready Checklist w/ link to our full training post.
Slide 3 – Inspect hot runner components at room and operating temp to determine actual “Soak Time.”
Slide 4 – Features of MoldXChecker®
Slide 5 – Importance of Measuring Thermocouple Ohms
Slide 6 – Hot-Half Ohms and Direct Short Testing the “Old Way”
Slide 7 – How to use the MoldXChecker®
Slide 8 – Checking for Hot Runner Ground
Slide 9 – The Problem with Shorts in a Hot Half
Slide 10 – Intro to CableXChecker®
Slide 11 – How to use the CableXChecker®
Slide 12 – How to Build or Repair a Cable
Slide 13 – The “Old-Way” of Checking Cables
Slide 14 – The Problem with Shorts in Cables
Slide 15 – Summary of CableXChecker®
Slide 16 – Connector Maintenance and Troubleshooting
Slide 17 – Recommended 24-Pin Connectors
Slide 18 – Hot Half Measure and Heating Procedure
Slide 19 – Quiz
1. Why measure t/c ohms?
2. Can you repair a shorted heater cable?
3. At what temperature should you check a hot half for direct shorts?
