Sharp R-450E Betriebsanleitung PDF herunterladen (Seite 17)

Performance Series 450e 17

Repairs at the unit

11.6 Replacing the Gears

 1. Openthereliefvalve,valvepositionPRIME(k

circulation),switchtheunitOFF,andunplugthepower

cord.

 2. Loosenandremovethefourmotorcoverscrews(Fig.16.

1).Removethemotorcover(2).

3. Disconnect the black and red wires coming from the gear

box housing.

 4. Loosenandremovethefourmotormountingscrews(3).

 5. Pullthemotor(4)outofthegearboxhousing(5).

If the motor will not dislodge from the pump

housing:

• Remove the front cover plate.

• Using a rubber mallet, carefully tap on the

front of the motor crankshaft that extends

through the slider assembly.

 6. Inspectthearmaturegear(6)ontheendofthemotorfor

damage or excessive wear. If this gear is completely worn

out, replace the entire motor.

 7. Removeandinspectthe2ndstagegear(7)fordamageor

excessive wear. Replace if necessary.

 8. Removeandinspectthecrankshaft/gearassembly(8)for

damage or excessive wear. Replace if necessary.

9. Reassemble the pump by reversing the above steps.

Duringreassembly,makesurethethrustwasher(9)isin

place.

Rell the gear box in the pump housing with ve

ounces of Lubriplate GR132 (P/N 0293396).

11.7 Replacing the Transducer

 1. Openthereliefvalve,valvepositionPRIME(k

circulation),switchtheunitOFF,andunplugthepower

cord.

 2. Loosenandremovethefourfrontcoverscrews(Fig.17,

Item1).Removethefrontcover(2).

3. Stop the sprayer at the bottom of its stroke so that the

piston is in its lowest position.

 4. Tiltthesprayerbackforeasyaccesstotheuidsection.

 5. Using3/8”ahexwrench,loosenandremovethetwo

pumpmanifoldmountingscrews(5).

 6. Pullthepumpmanifold(6)downapproximately1.3cm

from the pump housing to clear the transducer.

7. Slide the pump block and piston rod forward until the

pistonrodisoutoftheT-slot(4)onthesliderassembly

(3).

 8. Usingawrench,removethetransducerassembly(8)from

the pump manifold.

9. Thread the new transducer assembly into the pump

manifold(6).Tightensecurelywithawrench.

10. Reassemble the pump by reversing steps 2–7.

Make sure the transducer is aligned properly

with the hole in the pump manifold during

reassembly. Improper alignment may cause

damage to the transducer o-ring.

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