Fluid coupling maintenance pdf

Many flexible couplings use fixed position flexible metallic, rubber or plastic elements, such as discs or bushings, that rotate with the shafts and absorb misalignment. Proper installation, maintenance and operation procedures must be. This page contains information on elecon fluid couplings that are energy efficient, and providing soft start ability to a motor to safeguard the gearbox and motor. The rotofluid fluid coupling is designed to provide your plant with optimum. Preventive maintenance is especially important with hydraulic products. We manufacture millions of standard products while developing tailormade components for you as well. Fluid couplings or hydraulic couplings work on the hydrodynamic principle. The dotted line represents the energy lo st bringing.

Construction, working, operation and maintenance of fluid couplings. Magnet and fluid couplings provide no contact between drive and driven elements, offer low maintenance and both are capable of absorbing shock loads. It is imperative therefore to provide each mechanic with a copy. Other coupling types are flexible couplings and fluid couplings. With a fluid coupling installed, however, the torque to the driven machine starts at zero point c and gradually increases as the coupling impeller accelerates to point d. Water used as operating fluid for turbo couplings with centrifugal valves. Milano italy sheet date 7 10061a en 012017 characteristic curves startup without fluid coupling figure 1 represents the typical startup of an electric motor directly connected to the load. For transmission oil characteristic see installation and maintenance manual. For a selection of permissible oils and oill filling capacities please refer to page 23. When the output torque of the fluid coupling exceeds the breakaway starting torque of the driven machine point d, the driven machinery gradually accelerates right half of. The coupling hub must press against either the shaft.

Fluid couplings these instructions must be read thoroughly before installation or operation. Troubleshooting power transmission couplings maintenance. Proper installation, maintenance and operation procedures must be observed. Flender fludex couplings from siemens are hydrodynamic fluid couplings operating according to the fottinger principle. Electric motor characteristic curves with and without fluid coupling. The high pressures and temperatures associated with hydraulics make hose and fitting maintenance as well as selection critical. The fluid coupling with inner wheel drive is driven via the hollow shaft. Pullup torque the pullup torque of a motor is the minimum torque developed by the motor when accelerating from rest to the breakdown torque point. Fluid coupling with a flexible coupling on the motor side. Installation and maintenance manual eleconhydrokinetic fluid coupling traction type. A fluid coupling is a hydrokinetic transmission unit comprised of three main elements.

Only thin fluid mineral oil may be used as operating medium. Fluid coupling, the principles of operation youtube. Using the mounting spindle and the thrust disc, the turbo coupling is mounted on the shaft, fig. If done correctly, the risk of injury andor excessive, costly downtime decreases. Construction, working, operation and maintenance of fluid. How does the torque converter in the automatic transmission work. In drives consisting fluid couplings, there is no mechanical contact between the driver. Assembly check, commissioning and maintenance report.