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    Manual HydraulicVentValve

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    bentsopo
    ventt

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    © All Rights Reserved
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    Manual HydraulicVentValve

    Uploaded by

    bentsopo
    865 views4 pages
    ventt

    Copyright

    © © All Rights Reserved

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    PDF, TXT or read online from Scribd

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    ventt

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    865 views4 pages

    Manual HydraulicVentValve

    Uploaded by

    bentsopo
    ventt

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    You are on page 1of 4

    MODEL 84980

    HYDRAULIC VENT VALVE


    Series B

    DEC - 2005

    Form 402085

    Section

    - C8

    Page

    - 313

    MODEL 84980
    HYDRAULIC VENT VALVE
    1/4"
    NPTF

    Indicates Change

    241807

    244673

    14722

    239330
    14723
    31047
    3/4"
    NPTF

    3/4"
    NPTF

    239336

    Part

    Qty. Description

    SERVICE PARTS
    Part

    Qty. Description

    10160

    Elbow

    66246

    Lockwasher

    10724

    Union nut

    67034

    Coupling

    11907

    Union nipple

    67290

    Vent tube

    12213

    Adapter

    81753

    Elbow union assembly

    12538

    Nut

    81938

    Outlet check

    14722

    Needle

    90942

    Safety unloader

    14723

    Valve seat

    273233

    Hose

    14727

    Nipple

    239330

    Packing assembly

    16377

    Check housing

    239336

    Valve body

    31010

    Washer (copper)

    241807

    Cylinder

    31047

    Check seat gasket

    244673*

    Piston & U-Cup Assy.

    34049

    Washer

    360580

    Bracket

    48415

    Washer (steel)

    271598

    Hose assembly

    50000

    Screw

    271599

    Adapter Elbow

    50034

    Screw

    361104

    Bracket

    51026

    Nut

    *Sold only as an assembly. Individual parts not available.

    RETAIN THIS INFORMATION FOR FUTURE REFERENCE

    When ordering replacement parts, list: Part Number, Description, Model Number, and Series Letter.
    LINCOLN provides a Distributor Network that stocks equipment and replacement parts.

    Page Number - 2

    Form 402085

    MODEL 84980
    HYDRAULIC VENT VALVE
    Model 84980 Hydraulic Vent Valve Assembly

    This procedure should be performed if any of the following conditions are occuring:
    1) The pump is running excessively.
    2) The pump is not developing the proper pressure.
    3) The system pressure is not venting or relieving.
    4) Hydraulic fluid is leaking from the weep hole of the 241807 vent valve cylinder.
    5) The lubricant being pumped is leaking from the weep hole in the 241807 vent valve cylinder.

    Cleaning and/or Repairing Instructions

    1) Turn off and disconnect the hydraulic supply to the pump assembly.
    2) Standard tools required are a set of open end wrenches ranging from 7/16 to 1 1/2, a large open 24 adjustable
    wrench, a smaller 10 adjustable wrench and a bench mounted vice.
    3) Remove the delivery hose, vent hose, hydraulic supply hose and all mounting hardware and remove the vent valve assembly from the pump.
    4) Hold the 239336 Valve body in a bench vice by the flats that are machined on the base of the valve body.
    5) Remove the 241807 Cylinder. Remove the 244673 Piston & U-Cup Assembly from the 241807 Cylinder. If hydraulic
    fluid is leaking from the weep hole in the 241807 Cylinder (see condition 4 above), replace the 244673 Piston & U-Cup,
    reassemble the Vent Valve and reconnect to the pump assembly, or continue as follows:
    6) Remove 239330 Packing Assembly. If the lubricant being dispensed is leaking from the weep hole in the 241807
    Cylinder (see condition 5 above), replace this packing assembly, reassemble the Vent Valve and reconnect to the pump
    assembly, or continue as follows:
    7) Inspect 14722 Needle and 14723 Valve seat. If foreign matter is lodged in the area and is keeping the needle from
    sealing in the valve seat, clean thoroughly using mineral spirits or oleum and inspect for damage. If seat appears damaged by nicks, grooves or scoring it should be replaced. Remove the valve seat from the body using a 3/4 open end
    wrench.
    8) Replace the valve seat if damaged. Be certain to remove and replace the 31047 Check seat gasket below the seat.
    9) Reassemble the Vent Valve Assembly by reversing the above procedure. The 14722 Needle and the inside diameter
    of the 241807 Cylinder should be coated with grease to assist in assembling.
    10) During reassembly, tighten the 14723 Valve seat into the 239336 Valve body using 25 ft-lb and tighten the 241807
    Cylinder onto the 239336 Valve body using 100 ft-lbs.

    Form 402085

    Page Number - 3

    MODEL 84980
    HYDRAULIC VENT VALVE

    Americas:
    One Lincoln Way
    St. Louis, MO 63120-1578
    USA
    Phone +1.314.679.4200
    Fax +1.800.424.5359
    Page Number - 4

    Europe/Africa:
    Heinrich-Hertz-Str 2-8
    D-69183 Walldorf
    Germany
    Phone +49.6227.33.0
    Fax +49.6227.33.259

    Asia/Pacific:
    51 Changi Business Park
    Central 2
    #09-06 The Signature
    Singapore 486066
    Phone +65.6588.0188
    Fax +65.6588.3438

    Copyright 2005
    Printed in USA
    Web site:
    www.lincolnindustrial.com

    Form 402085

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