Bissell HS-20 instruction manual JET Assembly, Disassembling the Jet Assembly Refer to Figure

Maintenance

3-5 JET ASSEMBLY

The HS-20 jet assembly consists of several subassemblies. The lower jet assembly consists of the jet base and stages 3 and 4. A jet shield is provided for the third stage jet. The second stage jet is secured to the central tube and forms a subassembly. A shield is provided for the second stage jet. The top of the central tube carries an orifice plug. The top jet spacer passes through this plug and by a spring-loaded coupling and tie rod secures all stages firmly.

All external and accessible internal surfaces of the jet assembly have been cleaned prior to shipment.

3-5-1 Disassembling the Jet Assembly (Refer to Figure 3-2)

aDisassemble the cold cap water line feedthrough compression seals by removing the nut, the follower, and the gasket from the side of the pump.

bRemove the cold cap securing screw and withdraw the cold cap assembly carefully. Be sure that the seal sleeves are not scored or otherwise damaged.

cFirmly grasp the jet cap and unscrew it from the coupling assembly.

dRemove the orifice plug.

eWithdraw the central tube complete with second stage jet and jet shield.

fRaise the lower jet assembly which consists of the third stage jet, the jet shield, the fourth stage jet, and the jet base.

3-5-2 Disassembling the Lower Jet Assembly

a Remove the third stage shield.

NOTE

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Before removing the securing screws in the following step, scribe a ref- erence mark at the interface to assure that original holes are mated when reassembled.

bRemove the securing screws between the third and fourth stage jets. Carefully preserve the screws. Be sure that the jet spacers are not damaged in handling.

cCarefully remove the fourth stage jet from the jet base.

dClean all parts thoroughly.

3-5