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The great work of “Dyna-Star” on the 984 Excavator


Leighton Asia, a global mining service company, works on mining sites in Mongolia.  They were using a pneumatic lubrication system installed on their “984 Liebherr Excavator”. Due to harsh working conditions, the installed unit was unable to perform accurately; hence Leighton Asia was unsatisfied with the results. The pneumatic system had failures during the harsh winter conditions due the low temperature (-40°C) during this period.

As they already had a system in place, Leighton was looking for a new set-up which could fit the foot print of the existing one. Reliability, high efficiency, versatility and accurate lubrication were really important for their new choice!



To overcome the main issue, reliability in winter conditions, instead of a pneumatic system, Graco proposed:

Using the opportunity of changing the system, the GLG4400 controller was also installed on the excavator to offer more comfort to the operator and easily manage the automatic lubrication.


After few months of operation with the new system, Leighton is entirely satisfied and said “It works great. We don’t fear the arrival of winter anymore!”

  • A Dyna-Star™ 10:1 hydraulic grease pump with a 27 kg reservoir
  • A Controller GLC 4400™
  • A new Pressure Switch for injector based systems

“Since the beginning, the proposed solution offers what we were expecting and the GLC4400 brings great added-value to the system in terms of user friendliness and reporting capabilities”.

Leighton Asia used these products:

  • product detail

    Injector and series progressive based systems

    Hydraulic Dyna-Star 10:01
    • Heavy duty lubrication and transfer system
    • Multiple pump and accessory options
    • Self-lubricating vertical design for long life and reliable operation in high vibration environments
    • Ultra-quiet hydraulic motor
    • High efficiency motor design to save hydraulic oil
    Used in: Off Road (mining, construction, agriculture) / Marine
  • product detail

    Suitable for all automatic lubrication systems

    GLC 4400
    • Cost optimized controller to be mounted in remotely
    • Operator gets immediate feedback if the equipment needs attention
    • Easy to install with the plug & play cable kit
    • Easy to program
    • Rugged and weatherproof
    • Meets IP69K protection requirements
    Used in: Wind Energy / On Road / Off Road (mining, construction, agriculture) / Marine / General Industries / Food & Beverage

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Graco since 1926

Founded in 1926, Graco is a world leader in fluid handling systems and components. Graco products move, measure, control, dispense and apply a wide range of fluids and viscous materials used in vehicle lubrication, commercial and industrial settings.