Hydraulic System. 6.1. A closed center hydraulic system shall be used to operate the plow, wing, dump body, and material spreader. Set pressures should be at manufacturer's standard, but no lower than 2,250 main psi and 250 standby psi minimum.
6.2. Pump housings shall be cast iron. A pump case drain shall be ¾” in diameter and plumbed directly in between the return filter and tank. It shall not go through the return line filter.
6.2.1. On all trucks, the pump shall be a direct drive pressure/flow compensating pump mounted directly to the crankshaft, via a PTO shaft. Pump shall be Metaris, model # MPN105954, and have a minimum 71 CC displacement with a minimum capacity of 34 GPM at 1600 RPM. The universals shall be, Napa model UJ280 or approved equivalent, The grease fittings shall be lined up so that all the fittings can be greased from one point.
6.2.2. All yokes shall have two set screws with two safety wires in the pump driveline
6.3. All hydraulic cylinders used in the system shall be properly sized and of sufficient capacity so that they can perform their designated functions without any noticeable deflection of the cylinder rod when fully extended. Cylinder rod shall be Nitride; provide alternate quotes for Chrome cylinder rod installed on “X” number of units.
6.4. Hydraulic valve shall be Xxxxx-Danfoss PVG32 (as per attached Appendix 1), or pre-approved equal with similar performance. Valves shall be electrically operated.
6.5. A central hydraulic valve system with a rated capacity of at least 34 GPM shall be mounted behind the cab, built into the rear wing tower assembly, in an accessible location. The valve shall be designed to withstand exposure to de-icing chemicals and severe weather conditions, and be in an enclosed housing, accessible without tools. Stackable section valves that allow for servicing without disassembly shall be used. Each section must allow simultaneous operation without impacting other operations. Valves operated by the ice control system for the spinner, conveyor and liquid pumps shall be installed as part of the above valve body. A 500 PSI port relief valve shall be provided for the inner body lift cylinders (if applicable) – downside. Main valve cabinet shall be fluid filmed pre-delivery.
6.6. No hydraulics will be permitted in the cab.
6.7. All hydraulic lines running under the truck, including the 1” pressure line, shall be stainless steel pipe of the proper size and rating for the function. Each end of the stainless piping shall have a ...
Hydraulic System. The hydraulic system for this Twin Cementing Unit shall be powered from the above Xxxxxxx Transmission mounted PTO Systems and will consist of hydraulic pumps to provide hydraulic power to the Centrifugal Pumps and other Unit hydraulic systems as follows: The hydraulic system powered from the two transmissions will be mutual backup as follow: Powered from the transmission that drives the LH side Triplex Pump shall be the following:
(1) Water Mix Centrifugal Pump • Recirculation Centrifugal Pump • Booting Centrifugal Pump • Hydraulic Paddles • Cement Inlet Valve Control Activator • Dry additive auger • LH side Triplex Pump power end lubrication system • Powered from the transmission that drives the RH side Triplex Pump shall be the following:
(1) Mix Water Centrifugal Pump • Recirculation Centrifugal Pump • Boost Centrifugal Pump • Hydraulic Paddles • Cement Inlet Valve Control Activator • Dry additive auger • RH side Triplex Pump power end lubrication system Required control valves for these hydraulic functions will be installed on the Unit Control Consol. The hydraulic tank will be of adequate size for the operation of the open loop hydraulic systems. The suction ports from the tank will be fitted with minimum 80 mesh screens located inside the tank. The suction lines coming out of the tank will be fitted with ball valves. The hydraulic suction from the tank and return back to the tank will be isolated by a baffle inside the tank. The tank fill port/breather will be of adequate size. This hydraulic system will include all other required accessories including a hydraulic oil cooler, hydraulic temperature and pressure gauges, control valves, relief valve, hydraulic hoses and other components.
Hydraulic System. 2.1.5.1 Constant delivery hydraulic gear pump delivering 6 GPM at 1000 PSI
2.1.5.2 Pump will be PTO driven off an auxiliary pad attached to diesel power unit
2.1.5.3 Disengagement of the main clutch will not affect operation of the hydraulic system 2.1.5.4 16-gallon capacity oil tank fitted with sight gage, combination filter cap, and air filter and magnet drain plug
Hydraulic System. The hydraulic system mainly comprises hydraulic pump station, oil circuit, control components and actuator, as the power for the brake system. The brake device is mounted on the high speed shaft. The materials of brake disc conform to low temperature conditions and is conducted with the dynamic balance test before ex-factory. Two sets of independent brake systems are provided for the WTGS to stop the wind turbine generator under any conditions (including load rejection of power grid) and when the rotor reaches the largest rotation speed. The tip spoiler operates under aerodynamic principles and directly acts on the blades.
Hydraulic System. General comments: aerodyn will design and specify the hydraulic system for the rotor brake and yaw brake system. The hydraulic wiring diagram will be set up. A schematic drawing for the pipe layout will be drawn up. Scope of work: - Calculation of the main parameters - Specification of hydraulic system - Wiring diagram of the hydraulic system - Schematic drawing for the pipe layout Tasks not included: - Detailed manufacturing drawings for piping of the hydraulic system External requirements: - - Annex 1, Contract Mingyang, 1.5MW, Rev. B, 2005-12-20 Result of work: - Specification of the hydraulic system - Documentation of hydraulic system - Wiring diagram of the hydraulic system - Schematic drawing for the pipe layout
Hydraulic System. ARTICLE 363 In default of any provision to the contrary, when as the result of the fixing of a new frontier the hydraulic system (canalisation inundation, irrigation, drainage or similar matters) in a State is dependent on works executed within the territory of another State, or when use is made on the territory of a State, in virtue of pre-war usage, of water or hydraulic power the source of which is on the territory of another State, an agreement shall be made between the States concerned to safeguard the interests and rights acquired by each of them. Failing an agreement, the matter shall be regulated by an arbitrator appointed by the Council of the League of Nations. CHAPTER II. TELEGRAPHS AND TELEPHONES. ARTICLE 000 Xxxxxx undertakes on the request of any of the Allied Powers to grant facilities for the erection and maintenance of trunk telegraph and telephone lines across her territories. Such facilities shall comprise the grant to any telegraph or telephone company nominated by any of the Allied Powers of the right:
Hydraulic System. Electric/hydraulic operation. Four function hydraulics with internal reeving. Chrome plated cylinder rods. Reservoir with sight gauge or dip stick. Ten (10) micron filtering. Or NMDOT Approved equal. Hydrostatic power steering. Or NMDOT Approved equal. Hydraulic/mechanical/parking brake system. Solid wide pneumatic, lug type rubber tires. Solid wide pneumatic. Prime and paint factory standard color. O perator’s Station: Vinyl adjustable seat with at least six inches for fore and aft adjustment with a manufactures standard seat belt. Infinitely adjustable steering column with memory tilt and telescopic steering wheel. Standard seat side hydraulic levers type fork controls. Low effort e-hydraulic controls for all functions. Or NMDOT Approved equal. Rear view mirrors right and left.
Hydraulic System. 12.1 Tandem hydraulic pumps shall be a direct gear pump for maintenance free operation, having a flow capacity of 7.7 GPM @ 2500 RPM each. A belt driven or PTO driven hydraulic pump is not acceptable.
12.2 Reservoir capacity shall be not less than 23 gallons and have an exterior sight gauge. The reservoir must be located in the enclosed auxiliary engine compartment for quick inspections without tilting the xxxxxx.
12.3 Hydraulic oil cooler shall be standard with fresh air intake and accessible with out raising the xxxxxx. All hydraulic circuits shall have quick disconnect pressure check ports for ease of maintenance.
12.4 To minimize the hazards of potential leakage, all high pressure fittings shall be “O” ring face seal (OFS) on hose ends or “O” ring boss on hydraulic ports. Other systems shall not be acceptable.
12.5 There shall be a 10 micron spin-on hydraulic filter. Exchange of the filter must be possible without tilting the xxxxxx.
12.6 To further reduce the chance of hydraulic system contamination and joint leakage use of standard pipe threads requiring pipe dope shall not be acceptable.
Hydraulic System. The centralized hydraulic system of the Verzuolo building has its heart in the boiler room: here, in fact, the gas piping and the water supply pipe arrive, each one from their own meter. The heat generator consists of a condensing natural gas boiler with 80 kW of nominal power. It is powered by the gas arriving in the boiler room, which reaches by passing through the protection and safety devices, such as solenoid valve, shut-off valves and filter. The boiler has the dual function of providing hot water for heating and to produce domestic hot water. Its operation is regulated by BMS, so the start takes place based on the winter calendar, with time setting as regards the heating, and on the basis of the temperature of the boiler, as regards the production of domestic hot water. All the devices required by law are present on the boiler flow, such as safety valve, maximum temperature thermostat, block pressure switch and minimum pressure switch. As regards the heating circuits, a pump with inverter makes the water circulating in the two circuits: the utilities of the dwellings, and the restaurant and the adjoining kitchen (out of scope for this project). Each circuit is also equipped with shut-off valves, calibration valves, temperature probes and expansion vessels. Each circuit feeds its associated fan coils. As regards DHW production, a dedicated circulating pump is installed on the supply boiler manifold: when the BMS system detects that the 500-liter boiler used for DHW production drops below the set point, a command is sent to the pump and the boiler in order to restore the desired temperature in the buffer tank. The hot water produced through a coil reaches all the apartments, together with cold water from the freshwater pipe. The last pump present in the boiler room is the sanitary water recirculation pump: to always guarantee hot water is quickly supplied to all users, the hot water is continuously recirculated thanks to a small pump placed here, connecting the top of the DHW circuit to the inlet in the buffer tank.
Hydraulic System. Central hydraulic system to operate dump hoist. PTO with direct-mount pump. 20-gallon hydraulic tank with tank-mounted filter. Ball valve shut-off on supply line. Rexroth 3m4-12 control valve with section for dump hoist. Stainless steel valve enclosure. Electric controls for hoist with in-cab switch.
