CC PACKET 02281989 - Laserfiche WebLink

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GEMINI GS-- - SPECIFICATIONS =- PAGE 3 HYDRAULIC SYSTEMS AND COMPONENTS (Con't.) hand. This patented system with automatic purging auxiliary handle is located on each ground valve to eliminates the possibility of the handle becoming stiff permit manual control of the valve spool..A shut-off or hard to move in cold weather. The one handle valve located near the ground control provides for control provides for individual movement of one of immediate override of the platform controls. Also, the three (3) actuating components or simultaneous this valve can be used to shut off all hydraulic pres- movement of more than one of the actuating compo- sure to the pilot lines in the booms to stop oil leakage nents. Coordinated control handle enables the oper- if the low pressure tubes are damaged and the unit ator to move the platform in a straight line vertically or can still be operated from the main ground control. horizontally.This pilot system operates at a low pres- sure off the main hydraulic system and activates the EXCELLENT SYSTEM FILTERING is provided in spools in the three(3)main control valves at the base. order to extend the life of the hydraulic fluid and keep Heavy, bulky bundles of full pressure hoses routed system wear to a minimum.A 100 mesh screen filter is through the booms to the platform.area are not re- placed in the suction line between the reservoir tank quired with this control-system.All the small hydrau- and the pump.Also a 10 micron filter is placed in the lic control lines routed through the booms are return line just ahead of the reservoir tank. checked to assure that no voids occur and affect the dielectric quality of the insulated booms. HYDRAULIC PRESSURE HOSE ASSEMBLIES are of wire reinforced construction where insulated hose is not required and where insulated hose is TECO'S SAFETY POWER-LOCK SYSTEM is a required the hose is nylon reinforced. All hose and double protection against the operator accidently fittings are permanently swagged to assure against moving the unit.There is no hydraulic power availa- leakage. All pressure hoses have a minimum burst ble at the platform control unless the trigger on the factor rating of four (4). control handle is held depressed. If the trigger is released, all hydraulic pressure is cut-off and the HIGH PERFORMANCE CYLINDERS are struc- unit will stop regardless in what position the handle turally designed with a minimum burst factor of is held.This system is also used at the base controls four (4). All cylinders are double pilot checked where a palm button must be held depressed before with all pilot check valves built into the cylinder any of the three (3) valves have hydraulic pressure housing. This prevents the cylinder from moving available for activation of the unit. due to oil leakage or pressure failure. Pressure must always be applied to both ends of the OPEN-CENTER SYSTEM IS AVAILABLE if customer cylinder before it can be activated. This also eliminates cylinder creepage due to control valve specifies.A larger tank is supplied.The one-handle plat- . leakage. The upper boom pilot check can be form control is not available with the open-center system. manually released to allow the boom to be lowered in case of pressure failure and the lower boom pilot check can be manually released to allow the lower boom to be lowered if a pressure LOWER CONTROLS FEATURE IMMEDIATE failure occurs. OVERRIDE OF THE PLATFORM CONTROLS by A PTO-PUMP combination mounted to the truck moving a quarter turn shut-off knob. The main transmission is the standard power supply for the ground control valve consists of three (3) four-way hydraulic system of the GEMINI.The system is design- valves with special spools which are spring centered ed to deliver 7-8 G.P.M. - in a normally closed center position. These special spools are moved either way by means of pistons AUTOMATIC THROTTLE CONTROL activates which are actuated by the low pressure hydraulic acceleration of the engine only when hydraulic oil is pilot system connected with the platform pilot con- needed during actuation of the GEMINI. A signifi= trol through small plastic nylon reinforced tubes.An cant fuel savings is realized by use of this system. sosa-ee-,