Asian Phoenix Resources PowerPal MHG-500LH Manuale di istruzioni per l'uso e la cura - Pagina 10

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1. Read this First

Greasing the Bearings

PowerPal has three bearings, two at the top of the shaft below the generator and one at

the bottom of the shaft above the turbine. The upper bearing assembly consists of two

steel ball bearing units placed 5cm apart. Both have been greased in the factory ready

for use and require re-greasing every 3 months of continuous use. Two cubic

centimeters of grease is enough for each bearing. The lower bearing is made of

polyamide composite material and is lubricated by water. No greasing is required.

Alternator /

Generator

Upper bearing

Lower bearing

Turbine

To grease the upper bearing assembly, disconnect and remove the generator from the

canal. Stand it on the ground, vertically. Then follow these steps:

1. Remove cap.

2. Place steel bar through propeller to stop it rotating.

3. Unbolt nut on top-center of the rotor. Unbolt clockwise.

4. Screw in 2 x M8 bolts into holes in top of rotor, then pull the rotor out (photo A).

This may require additional effort to overcome the magnet's effects.

5. Remove metal ring (tube) from the axle.

6. The topmost bearing is visible, ready for greasing. Run a small amount of grease

around the top of the bearing (photo B). When working again, heat will allow the

grease to run down into both steel bearing assemblies. If a grease gun is

unavailable then a screwdriver or a clean stick coated with grease will do.

Failure to grease the bearings on

time will shorten their life and

require their replacement. The

increased friction will also reduce

power output. Always dry

PowerPal before greasing.

PowerPal™ Low Head 10