Farris Engineering 1800 Series Maintenance Manual Download Page 5 | Manualshive

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Summary of Contents for 1800 Series

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Page 2: ...896M Page 3 3 Lifting Lever Assemblies Open Ufting Lever Page 4 Packed Lifting Lever Page 4 Ifa valverepair requires replacementparts only factory supplied components shall be used Use of parts from other than the original manufacturer is not recommended because itwill lead to potentially dangerous operating conditions Iffaced with repairsexceeding the scope of this manual we suggestyou contact th...

Page 3: ...Remove the upper spring button spring and lower spring button from the stem Flexible Graphite Flexible Graphite 31651 51 31651 51 3165151 8a 1850 1852 1856M open lever 1856M packed lever only Lift the stem with stem retainer lockwasher and disc attached Unscrew the stem retainer from the disc Remove lockwasher 51 51 1 17 INameplate notshfNIn 18 ISDrin I I I Stainless 51 1 WOe lead Seal Stainless S...

Page 4: ...tem SOOWder 15 WireSeal 16 Namepmm not shown 17 Spring lapJoint StubEnd N In 0 LapJamt StubEnd 234 T OUllet Carbon St E LapJoHrt Range 181 or 105 Inlet Carbon Steel 1 lap Joint Flange 181 QrSA 105 O l1et CarbQrJ St 6 Thread a pipe into the outlet and turn the bonnet counterclockwise Liftthe bonnet out to expose intemalsub assembly 7 Uft the stem with spring and buttons attached Remove upper spring...

Page 5: ...g 4 Pull the cam shaft from the cap The cam can then be removed through the bottom of the cap 5 Remove the stem jam nut and stem test washer 6 Reassemble in reverse order making sure the cam rests beneath the stem test washer c Fig 3 4 1 Remove lever jam nut and washer Slide lever off the cam shaft 2 Follow steps 2 to 6 in section b STEil JAIl NUT STEil TEST WASNER CAIISHArT STEIl GlAND CRDDV PlN ...

Page 6: ...ve dimensions smallerthan the minimum required 2 Use Farris 1200 lapping compound When lapping the disc operate with a light figure eight motion over entire block surface Inthis way complete contact will be made With this motion the complete surface of the part will be evenly lapped and you will avoid wearing a groove in the block 3 Lap the disc until all blemishes and score marks have been remove...

Page 7: ...lowdown ring to the body 6a 1850 1852 1856M open lever and 1856M packed lever only Place stem retainer over stem Screw stem retainerto disc 5 Tighten guide to body with 11 4 dia bar inserted through guide exit holes with qpproximate torque of 20 ft Ibs 6 Insert disc and install lift stop disc liftis greater than 085 Verify that available 6b 1855 only Place stem into the disc Drive groove pin throu...

Page 8: ...t rotate while load ing the SPRING 3 Slowly raise the test drum pressure and observe the opening point The set pressure on air or steam is the pop point while on water it is the first continuous flow 4 If necessary reduce the test drum pressure and adjust the SPRING ADJUSTING SCREW Repeat this until the valve opens at the required pressure designated as Cold Differential Set Pressure At the desire...

Page 9: ... X 45 L MIRROR FINISH MIN Body 1 Body 2 I 040 MIN MIRROR FINISH CHAMFER 010 X 45 DiSC 1 1 TELEDYNE IFLUIDSYSTEMS Farris Engineering Visit www boighill com to request a quote Visit www boighill com to request a quote ...

Page 10: ...ering 400 COMMERCIAL AVENUE PALISADES PARK NEW JERSEY 07650 PHONE 201 944 6300 FAX 201 944 4315 PRESSURERELIEFVALVES AND TESTING EQUIPMENT Printed In USA Visit www boighill com to request a quote Visit www boighill com to request a quote ...

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