Hydraulic System - Power Pack Version

The hydraulic system consists of the following:

• Hydraulic oil reservoir with return oil filter and a breather assembly
• Direct coupled hydraulic pump(s)
• High speed load sensed unloader valve assembly (except 121 and manual control models)
• High-pressure oil filter
• Danfoss proportional control valve(s)
• Two hydraulic cylinders fitted with double check valves operating each stabiliser leg
• One hydraulic cylinder fitted with single over-centre valves operating each top arm
• One hydraulic cylinder fitted with double over-centre valves operating each bottom arm
• Two hydraulic cylinders or four hydraulic motors to traverse the cranes (except on truck mounted and fixed crane units)
• A solenoid operated dump valve connected to the load sense system (optional)
• A hydraulic pressure gauge (or 2 for manual control version)