Off-Set and Prevent High Repair Costs
During injection mold maintenance, problems are identified and fixed immediately.  Any impending issues can also be identified and addressed.
The average cost of doing repairs becomes higher than regularly scheduled maintenance because once a mold completely breaks down - repairs tend to be more costly, due to the increased damage to the tool and unscheduled production downtime.
Predictability For Higher Quality
The functioning status of the injection mold is directly proportional to the specific products you are producing. To get quality results, the injection mold has to be in top condition.
This is why injection mold maintenance is critical to the protection and dependability of the completed product’s quality.  Failing to keep the injection mold in its highest-possible working order means out of spec components could be produced as well as neglecting your investment – a huge risk to take.
Once an injection mold has undergone several cycles - qualified manufacturers will always perform inspections, maintenance and cleaning.
Injection Mold Breaks Down Reasons:-
Water Leaks: The most common cause of injection mold breakdowns. These leaks typically occur around static seals - or where dissimilar metals contact. This is why lubrication, cleaning and tightening of all mold components is an integral part of regular maintenance.
Rust :  It constantly erodes steel and injection molds are no exception. Regularly scheduled cleaning is mandatory to remove rust and prevent mold breakdowns and out of spec components. 
Metals Used: The characteristics of molds made from steel are very different from those made of aluminum. Steel is stronger and not easily prone to wearing out while aluminum, which is a softer metal, would require regular maintenance when exposed to high temperatures.
The Environment: The environment in which the mold is used needs to be taken into account. Moisture, extreme temperatures and pressure all take their unique toll.
The Ideal Injection Mold Maintenance Schedule
Your injection molder and your mold manufacturer have the required knowledge of how materials, environment and the product being produced all effect the injection mold.
They are the most qualified to determine the best-possible mold maintenance schedule for your tools. Since different molds age at different rates, the schedule for the maintenance needs to be set carefully.
Molds that use materials that are more abrasive will also need maintenance more often than injection molds used with less abrasive polymers Also, what kind of product is being manufactured.
Different injection molds can have varying plans - however the constant factor is that they all have to be routinely examined and maintained. It all depends on the number of cycles that have been performed, the mold materials used, which cavities, and what material is being processed.

​Regularly scheduled maintenance is more than just important; it helps extend the lifespan of your injection mold.