2.3.3.1 Hydraulic System Pressure Hazards
• Hydraulic System
Flexible hose connections and piping in hydraulic systems must be properly tightened to
prevent the release of uids or gases under pressure. Hoses must be inspected periodically
for signs of sweating and/or blistering. Rubber hoses naturally age with time and require
replacement at regular intervals as per the manufacturer's specications and Husky
maintenance requirements. Steel tubes should be tested using dye penetrant.
WARNING!
High pressure spray hazard – risk of death or serious injury. High pressure hydraulic
oil spray could penetrate human tissue and cause extensive injuries. Lock out and tag
the machine before servicing any hydraulic component.
WARNING!
High pressure spray hazard – risk of death or serious injury. Depressurize each
individual hydraulic circuit using an oil sampling kit before servicing any hydraulic
component.
• Skin Puncture Injuries
High pressure hydraulic spray can penetrate human tissue and cause severe bodily injury.
Seek immediate medical help in any event of skin puncture by uid spray.
2.3.4
Electrical Hazards
• Power Supply
Molding equipment draws high amperage current at high voltage. The electrical power
requirements are indicated on the nameplate and in the electrical schematics. Connect equipment
to a suitable power supply as specied in the electrical schematics and in compliance with all
applicable local regulations.
• Water
Water on the hot runner can be in close proximity to electrical connections and equipment. This
can lead to a short circuit, resulting in serious electrical damage to the equipment. Always keep
water lines, hoses, and hose ttings in good condition to avoid leaks.
2.3.5 Gas, Vapor and Dust Emissions
Certain processed materials release harmful gas, vapors or dust. Install an exhaust system
according to local codes.
v 2.2 — March 2021 Unify Manifold System
20 Hydraulic System Pressure Hazards
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