Emerson Anderson Greenwood 81P Maintenance Instructions - Page 3

Browse online or download pdf Maintenance Instructions for Control Unit Emerson Anderson Greenwood 81P. Emerson Anderson Greenwood 81P 5 pages. Dso pressure relief valves

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ANDERSON GREENWOOD TYPE 81P DSO PRESSURE RELIEF VALVES

MAINTENANCE INSTRUCTIONS

Pressure adjustment screw

Spring washer

Spring

Bonnet retainer ring

Bonnet

flange

Outlet

FIGURE 2

G, J ORIFICE

3 VALVE REPAIR (G, J ORIFICE)

Refer to Figure 2

3.1

Disassembly

3.1.1 Relieve spring tension.

3.1.2 Remove spring bonnet and valve internals.

3.1.3 Separate nozzle from guide by hitting top of spindle on soft surface.

3.2

Repair

3.2.1 Hold spindle by skirt O.D. in soft jaw vise and replace seat.

3.2.2 Examine nozzle and polish seating surface as required. Replace if necessary.

3.3

Assembly

Assemble in reverse order of disassembly. Lubricate the parts listed below with the

lubricant specified. Make sure the nozzle is fully and squarely seated in guide.

Seal

Cap

Drag seal

Bonnet

Flange bolt

Spindle

Seal

Guide

Seal

Plug

Nozzle

Body

Spindle seal

Seat

Seat retainer screw

Seat detail