Dankoff Solar Water Feature Kurulum ve Servis Kılavuzu - Sayfa 16

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8. MAINTENANCE

Shaft Seals - Seals may last for a few years, but if the water contains abrasive silt, the seals will wear faster. Seals

will be quickly ruined if the pump runs dry. You can purchase spare seals from your Dankoff Solar dealer and MUST

be installed correctly. The smooth white ceramic face must face outward, away from the motor. The part with the

spring presses over the shaft. The all-black end must contact the white ceramic face. The metal and rubber end

faces away from the motor.

Seal and Gasket Kits

If last digit of the pump model number is 1, 2, 3, or 4 — order Dankoff Solar item #37690

If last digit of the pump model number is 5 or 6 — order Dankoff Solar item #37691

Seal and Gasket Kits for High Temperature pumps

If last digit of the pump model number is 1, 2, 3, or 4 — order Dankoff Solar item #37695

If last digit of the pump model number is 5 or 6 — order Dankoff Solar item #37696

The seal is an industry-standard pump seal for 5/8" shaft. In case of emergency, you may be able to obtain one

from a local pump supplier or electrical repair shop. If the paper pump gasket is damaged, a new one can be cut

from thick paper. Manila file folders works fine.

Before pressing the seal parts into place, use your finger to wipe a small amount of oil or grease onto the cast iron,

rubber and shaft surfaces. This will make installation and service much easier. DO NOT get any lubricant onto the

mating white and black faces of the seal. Always replace BOTH parts of the seal (the black part and the black &

white part)

Pump Head – The pump head is maintenance-free. Do not remove its front plate or otherwise tamper with it. The

pump head is not user repairable. It is easy to dissemble, but difficult to reassemble without special tools.

Motor Brushes – Motor Brushes: Typical brush life peak hours = working voltage X 800 / 3rd digit of model

number. EXAMPLE: PV-Direct curve #60 is Model 7526 working at 30V. Typical brush life = 30 X 800 / 2 = 12,000

peak hours. This represents about 5-8 years of service. Your result may differ. New Brushes measure 1.25 inches

(31 cm) in length. You can measure wear after a period of time, to predict the brush life. Worn brushes will not

effect performance, until they are worn to about 1/2 inch (1 cm.). At that point, to motor will stop as contact is

broken. Replacement brushes may be obtained from your dealer or the factory.

Motor Bearings - Ball bearings in the motor are lubricated for life and do not require maintenance. If water enters

the motor accidently, it will damage the bearings. Replacement bearings can be obtained from your Dankoff Solar

dealer. Purchase two bearings #6203Z.