Maintenance & Operating
`
`MANUAL
`
`FLC 503/504
`FLO-LINE
`CLEANERS
`
`MINERAL PROCESSING, INDUSTRIAL
`& ENVIRONMENTAL APPLICATIONS:
`Derrick Corporation
`590 Duke Road
`Buffalo. Now York 14225
`Phone: 716.683.9010
`Fax: 716.683.4991
`www.derrickcorp.com
`
`OIL & GAS INDUSTRY:
`
`Derrick Equipment Company
`15630 Export Plaza Drive
`Houston, Texas 74032
`Phone: 281.590.3003
`Fax: 281.442.6948
`www.derrickeckipmentcom
`
`Page 1 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`HOW TO USE THIS “e-MANUAL”
`
`This electronic version of a Derrick Operating and Maintenance Manual has been
`prepared in Adobe® Acrobat® pdf format. This format allows rapid access to
`information by clicking on the underlined italic document numbers.
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`Page 2 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`DERRICK
`
`cooRalow
`
`Section No.
`Effective Date
`Supersedes
`Page No.
`
`TOC00214
`21-Mar-08
`25-Apr-06
`1 of 2
`
`TABLE OF CONTENTS
`FLC-503/504 FLO-LINE® CLEANERS
`
`GENERAL INFORMATION ................................................................................. Section 1
`Introduction .......................................................................................................... DER01013
`Description and Operation .................................................................................... DER01114
`Equipment Specifications ..................................................................................... DER01214
`Services & Utilities Required ................................................................................ DER01313
`Equipment Handling Procedures ......................................................................... DER01414
`
`SAFETY INFORMATION ..................................................................................... Section 2
`Warnings Summary............................................................................................... DER02014
`MSDS Forms ........................................................................................................ DER02896
`
`INSTALLATION ................................................................................................... Section 3
`Installation Instructions ......................................................................................... DER03014
`Installation Procedure - Round Desilter Units ....................................................... DER03800
`Installation Procedure - Desander Units (Machine Mounted) ............................... DER03900
`
`OPERATION ........................................................................................................ Section 4
`Operating Instructions .......................................................................................... DER04014
`AWD Operation - Manual Jack Screw .................................................................. DER04100
`AWD Adjustment - Manual Jack Screw ................................................................ DER04200
`
`MAINTENANCE ................................................................................................... Section 5
`Maintenance Procedures ..................................................................................... DER05013
`
`SCREEN TENSIONING SYSTEMS ..................................................................... Section 6
`Under-Screen Tensioning Assembly .................................................................... DER06003
`
`Page 3 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`Section No.TOC00214
`Page 2 of 2
`
`TABLE OF CONTENTS
`Effective Date
`21-Mar-08
`
`VIBRATOR MOTORS .......................................................................................... Section 7
`See Motor Manual
`
`NOT USED
`
`Section 8
`
`DESANDER UNITS .............................................................................................. Section 9
`10” Hydrocyclone Desander ................................................................................ DER09000
`10” Desander - Machine Mounted ....................................................................... DER09100
`
`DESILTER UNITS ................................................................................................ Section 10
`4” Hydrocyclone Desilter ...................................................................................... DER10000
`Round Desilter - Machine Mounted and Standalone............................................ DER10100
`
`REFERENCE DRAWINGS ................................................................................... Section 11
`Reference Drawings ............................................................................................. DER11000
`
`NOT USED
`
`Section 12
`
`The content of this document is subject to change at any time. Information provided does not cover all details or variations possible
`with DERRICK equipment, nor does it cover every contingency that may be met in conjunction with installation, operation,
`maintenance, or troubleshooting of the equipment. Should additional information be required, or should situations arise that are not
`covered by this manual, bring the matter to the attention of your local DERRICK representative or the Service Department at
`DERRICK Corporation in Buffalo, New York.
`Copyright 1 2005 by DERRICK CORPORATION
`
`Page 4 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`DERRICK
`
`coRpoRATIoNr
`
`Document No.
`Effective Date
`Supersedes
`Page No.
`
`DER01013
`24-Apr-06
`11-Apr-05
`Page 1 of 5
`
`INTRODUCTION
`FLC 503/504 FLO-LINE® CLEANERS
`
`OVERVIEW
`This manual
`includes installation, operation, and maintenance information for the Derrick FLC
`503/504 Flo-Line0 Cleaners. The manual covers both the standard single machine (Figure 1013-
`1) and the dual machine (Figure 1013-2). The dual machine consists of two identical Flo-Line
`Cleaners fed by a common inlet feeder. Suitable notations and illustrations are used where
`appropriate to present the differences between the single and dual models.
`The Flo-Line Cleaners are dual-motor, high frequency, linear-motion vibrating screen machines
`designed for fine particle separation in the oil and gas drilling industry. The modular design of the
`equipment allows versatility in operation. All Derrick equipment is specially coated to meet the
`most demanding abrasive and corrosive applications. The final design of this equipment is the
`result of over 50 years experience in the mining, drilling and chemical industries.
`Several key design features combine to produce the high speed,
`fine particle separation
`attainable with the FLC 503/504 Flo-Line Cleaners. The vibrator motors are attached directly to
`the screen frame and positioned over the screening bed to maximize the G-forces transferred to
`the screen surfaces. Float mounts isolate the vibratory motion of the screen frame from the
`support structure. Screening beds are slightly crowned to allow proper tensioning of the patented
`screen surfaces. This method of screen tensioning improves screen performance and extends the
`life of the screen. The adjustable while drilling (AWD) mechanism is a manually operated jack
`screw that allows adjustment of the screen bed angle between -1& and +5&. This combination of
`features maximizes the fluid-handling and solids-removal capabilities of the machine.
`An optional weir-style feeder is available for the FLC 503/504 Flo-Line Cleaners. The Feeder
`allows the feed slurry to be evenly distributed across the screen bed.
`
`INTENDED EQUIPMENT USE
`The FLC 503/504 Flo-Line Cleaners and associated components are designed expressly for
`removal of drilling solids from drilling fluid. Derrick Corporation does not authorize any other use
`of this equipment.
`Persons transporting, installing, commissioning, operating or performing maintenance on this
`equipment are required to read and understand the instructions provided in this manual. One copy
`of this manual should be available and accessible where the equipment is located.
`To ensure the highest level of machine safety and performance, no additions and/or changes may
`be made to the equipment without the explicit written permission of Derrick Corporation. Genuine
`Derrick repair/replacement parts are required.
`Intended usage of equipment includes compliance with the operating, maintenance and safety
`instructions provided in this manual.
`
`Page 5 of 17
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`Derrick 2026
`IPR2016-00642
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`
`

`

`Document No. DER01013
`Docunont No. D ER01013
`Page 2 of 5
`Page 2 of 5
`
`Effective Date
`Effective Dote (cid:9)
`
`INTRODUCTION
`INTRODUCTION
`24-Apr-06
`24-Ap--06
`
`Figure 1013-1 FLC 503 Flo-Line Cleaner
`Flgra 1013-1 FLC 503 Flo-lira Clamor
`
`Figure 1013-2 Dual FLC 504 Flo-Line Cleaner
`Elgin 10134 Dud FLC 504 F10-Urn Clamor
`
`Page 6 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`(cid:9)
`(cid:9)
`

`

`DERRICK
`-- CORPORATION
`
`Document No.
`Effective Date
`Supersedes
`Page No.
`
`DER06003
`11 Sep 07
`08 Jun 07
`1 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`
`GENERAL
`Proper screen functioning depends on tight retention and full contact with the screen bed and
`related components, i.e. side supports, cross supports, and channel protectors. The under-screen
`tensioning assembly is one of the screen tensioning systems installed on Derrick equipment to
`properly secure the screen panels. Consult the applicable drawings in Section 11 - Reference
`Drawings to determine the type of screen tensioning system and component part numbers on
`your machine.
`DESCRIPTION AND OPERATION
`The under-screen tensioning assembly (see Figure 6003-1) is a two-part assembly consisting of
`fixed and adjustable fingers. Two under-screen tensioning assemblies are required per screen
`panel. The assemblies are mounted on the interior walls of the screen frame, positioned directly
`below the screen bed. The fixed side has a series of upward-facing vertical fingers that retain the
`screen panel against interior wall. The tensioning side has a series of movable, spring-loaded,
`upward-facing vertical fingers that are operated by a tensioning nut located outside the screen
`frame. The movable fingers are installed on the interior wall of the screen frame, directly opposite
`and aligned with the fingers on the fixed side.
`
`AlljklTABLE FINGERS
`
`TENSIONING NUT
`
`NON•ADJ LISTABLE FINGERS
`
`ADJUSTING NUT
`
`FIXED SIDE
`
`TENSIONING SPRING
`
`ADJUSTABLE SIDE
`Figure 6003-1 Under-Screen Tensioning System
`
`Page 7 of 17
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`Derrick 2026
`IPR2016-00642
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`
`

`

`Document No. DER06003
`Page 2 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`DESCRIPTION (CONTINUED)
`Flo-Line® Cleaners equipped with under-screen tensioning assemblies are identified as either
`right- or left-hand units, which designates the tensioning side of the machine. This arrangement
`allows an operator to work from one side of the machine to install and remove screen panels. To
`install a screen panel, one side is placed onto the vertical fingers on the fixed side of the screen
`frame, allowing the fingers to engage the edge from below the panel. The opposite side is then
`lowered onto the screen frame bed, allowing the spring-loaded vertical fingers on the tensioning
`side (Figure 6003-2) to engage the panel
`from the underside. Rotating the tensioning nut
`clockwise retracts the spring-loaded vertical fingers on the tensioning side of the screen frame to
`tension the screen panel on the screen frame. Both tensioning nuts on the screen panel require
`approximately 180° of rotation to transition from the clamp (full clockwise) position to the release
`(full counterclockwise) position. The distance the tensioning fingers retract is adjustable, and,
`consequently the amount of tension applied, is regulated by the adjusting nut setting.
`The distance between the fixed and movable fingers is factory set with the tensioning nut in the
`full clockwise (clamp) position. This distance can be increased by rotating the adjustment nut
`clockwise and can be decreased by rotating the adjustment nut counterclockwise (unclamp).
`
`ADJUSTAEILE FINGERS
`
`LEAF SPRING
`
`FINGER GUIDE
`
`CAM HOUSING
`
`TENSIONIND HUT
`
`ADJUSTING STUD
`
`AUJUSTING NUT
`
`Figure 6003-2 Tensioning-Side Components Cross Section
`TOOLS REQUIRED
`A double-ended combination wrench (Figure 6003-3) is available for use with the under-screen
`tensioning assembly. The offset-socket portion of the tool is used to rotate the tensioning nut. The
`hook at the handle end of the tool is used for placement and removal of the screen panel on the
`screen bed. The long handle of the tool allows the operator to easily reach the opposite side of
`the screen panel.
`
`Figure 6003-3 Combination Tool, Part Number 14734-01
`
`Page 8 of 17
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`Derrick 2026
`IPR2016-00642
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`
`

`

`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Document No. DER06003
`Page 3 of 11
`
`INSTALLATION
`The following instructions will assist in replacing a fixed- or tensioning-side assembly. Before
`beginning the installation, remove the channel protectors adjacent to the fingers being replaced.
`Fixed Side
`
`)P.
`
`1 - Insert 3/8-24 x 1-1/4” hex
`head bolts with flat washers
`through outboard mounting
`holes of fixed finger, and
`apply anti-seize compound to
`bolt threads.
`
`2 - Orient fingers upward,
`position on inside of screen
`frame, and insert mounting
`bolts through screen frame
`mounting holes.
`
`3 - Install flat washers and
`Nylok® nuts on bolts, but do
`not tighten nuts at this time.
`
`4 - Apply Hylomar® sealant (or
`equivalent) to rear surface of
`close-off plate as shown.
`Apply sealant between
`mounting holes and edge of
`plate as shown.
`
`5 - From inside of screen
`frame, insert 3/8-24 x 1-1/2”
`hex bolts with flat washers
`through inner mounting holes
`of fixed finger. Apply sealant to
`close-off plate, and install on
`outside of screen frame.
`
`6 - From outside of screen
`frame, install flat washers on
`bolts, and apply anti-seize
`compound to bolt threads.
`
`7 - Install Nylok® nuts on
`bolts, but do not tighten at this
`time.
`
`8 - Position fixed fingers with 7/16” (11mm) above side support,
`as measured at several points, and then tighten Nylok® nuts
`from outside of screen frame.
`
`Page 9 of 17
`
`Derrick 2026
`IPR2016-00642
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`
`

`

`Document No. DER06003
`Page 4 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Tensioning Side
`The leaf spring is no longer attached to the fingers, as in older-style assemblies. For new
`installations,
`the spring is attached to the screen frame wall.
`If re-using an old-style finger
`assembly having the leaf spring attached, remove and discard the leaf spring before re-installing.
`Use a drill, grinder, or chisel to remove rivets.
`
`1 - Install O-ring in center bore
`of Cam Housing. O-ring should
`nest in O-ring groove within
`the bore.
`
`2 - Apply thin film of petroleum
`jelly to O-ring groove, on rear
`surface of Cam Housing.
`
`3 - Install O-ring in groove.
`
`4 - From outside of screen
`frame, align locator pins on
`rear surface of cam housing
`with corresponding holes in
`screen frame. Position cam
`housing against outside of
`screen frame.
`
`5 - Place finger guide and leaf
`spring on inside of screen
`frame, and insert 3/8-24 x 1-
`1/4” hex head bolts with flat
`washers through mounting
`holes of cam housing.
`
`6 - Install a flat washer on
`each bolt, and apply anti-seize
`compound to threads. Install
`Nylok® nuts on bolts, but do
`not fully tighten at this time.
`
`7 - From inside of screen
`frame, insert two blind rivets
`into holes in floor of cam
`housing.
`
`8 - Fully tighten Nylok nuts
`previously installed. Using a
`brush, apply a thin film of
`petroleum jelly to internal bore
`of cam housing.
`
`9 - Orient adjusting bolt with
`flats facing away from cam
`housing, and insert adjusting
`stud into bore of housing.
`
`Page 10 of 17
`
`Derrick 2026
`IPR2016-00642
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`
`

`

`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Document No. DER06003
`Page 5 of 11
`
`10 - From inside of screen
`frame, apply thread locking
`compound to threads of
`adjusting stud.
`
`11 - From inside of screen
`frame, orient finger assembly
`with fingers pointing upward.
`
`12 - From outside of screen
`frame, thread adjusting stud
`into finger assembly.
`
`13 - Apply anti-seize compound
`to inclined cam surfaces in
`bottom of cam housing and
`threads of adjusting stud.
`
`14 - Install tensioning nut in
`cam housing, and orient with
`notch vertical and to the left. If
`installed properly, one thread
`of adjusting stud is exposed.
`
`15 - Force a wood wedge
`between stringer and midpoint
`of tensioning fingers to fully
`compress leaf spring behind
`fingers.
`
`P
`
`16 - Install adjusting nut on
`adjusting stud, and then insert a
`3/16” (5 mm) round pin (or
`screwdriver shank) through
`notch in tensioning nut. Tighten
`adjusting nut until about 7/8”
`(22 mm) of adjusting shaft is
`exposed beyond adjusting nut.
`
`17 - Withdraw pin from notch
`in tensioning nut.
`
`Page 11 of 17
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`Derrick 2026
`IPR2016-00642
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`
`

`

`Document No. DER06003
`Page 6 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Tensioning Side (Continued)
`
`20 - Install second
`tensioning assembly, and
`then check for required
`spacing of 40-1/16” (1018
`mm) between fixed and
`adjustable fingers as
`described in the following
`procedure.
`
`19 - Inspect stringer adjacent to
`fingers for distortion, correct as
`necessary, and then reinstall
`stringer protector.
`
`18 - Remove wood wedge from
`screen bed; adjusting nut
`should drop into hex recess of
`cam housing. If not, turn
`adjusting nut slightly clockwise
`(less than 30°) until it drops
`into place.
`TENSIONING SIDE FINE ADJUSTMENT
`Following replacement of parts on the tensioning system, the space between the fixed and
`adjustable fingers must be checked and adjusted if required. To ensure adequate panel tension
`and ease of panel installation and removal, this dimension must be exactly 40-1/16” (1018 mm)
`when tension is applied. To check and adjust the spacing between fingers, proceed as follows:
`1. Using combination tool, turn tensioning nut fully clockwise to 180° position.
`2. Hook end of measuring tape on middle finger of fixed side (Figure 6003-4), and measure
`across to middle finger of adjustable side. Adjustment is correct if distance is exactly 40-1/16”
`(1018 mm). If incorrect, release tension and proceed to step 3.
`3. Using extraction tool (refer to paragraph below), draw adjusting nut out of cam housing and
`rotate nut slightly clockwise to increase space or counter-clockwise to reduce space. Orient
`adjusting nut flats to coincide with internal flats of tensioning nut, release adjusting nut by
`backing off jackscrew, and remove extraction tool.
`4. Re-check dimension as described in step 2.
`5. Repeat procedure if necessary, until correct distance between fingers is obtained.
`
`40-1/16"
`
`FIXED SIDE
`
`ADJUSTABLE
`SIDE
`
`Figure 6003-4 Tensioning Side Fine Adjustment
`
`Page 12 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`(cid:9)
`

`

`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Document No. DER06003
`Page 7 of 11
`
`Extraction Tool Operation
`The extraction tool provided with the machine is used to withdraw the adjusting nut from the
`tensioning nut in the cam housing to permit tension adjustment. To use the extraction tool,
`proceed as follows:
`1. Remove screen panel.
`2. Thread extraction tool onto exposed threads of adjustment
`stud until bottomed against adjusting nut.
`3. Turn jackscrew clockwise to draw adjusting nut out of
`tensioning nut recess.
`5. Turn adjusting nut clockwise to increase tension or
`counter-clockwise to reduce tension.
`6. After completing adjustment, turn adjusting nut slightly to
`align flats and back off jackscrew to allow adjusting nut
`return into tensioning nut recess.
`
`TENSION ADJUSTMENT
`is characterized by a screen panel that is stretched taut
`Proper tensioning of a screen panel
`(tensioned) so the underside of the panel is in full contact with the screen bed components (side
`supports, cross supports and channel protectors).
`Adjusting Tension
`Tension should be adjusted only upon installation and normally should not require re-adjustment.
`However, in rugged environments wear of the fingers may gradually reduce tension (Figure 6003-
`5) and require readjustment of tension.
`When a screen panel flutters during operation, the wear pattern on the fingers becomes worse. If
`either the fixed-side or tensioning-side fingers exhibit this type of wear pattern they must be
`replaced in accordance with the preceding installation procedures.
`
`GROOVE OR NOTCH INDICATES
`EXCESSIVE WEAR
`
`Figure 6003-5 Finger Wear Pattern Due to Insufficient Tensioning of Screen Panel
`
`Page 13 of 17
`
`Derrick 2026
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`
`

`

`Document No. DER06003
`Page 8 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Clamping and Releasing Screen Panels
`WARNING! THE PROPER CLAMPING AND RELEASING SEQUENCE MUIST BE
`FOLLOWED TO PREVENT DAMAGE AND ENSURE MAXIMUM LIFE OF THE
`SCREEN PANELS AND TENSIONING FINGERS.
`
`A
`
`Each panel is clamped by two Ramp-Lok tensioners. For a three-panel machine, therefore, a total
`of six tensioners are installed in the screen frame (Figure 6003-5). To ensure that the screen
`panels are clamped properly and in full contact with the screen bed, tension must be applied in
`two stages. Following is the tensioning sequence for one screen panel. The tensioning procedure
`must be repeated for each successive screen panel. Clamping is performed as follows:
`1. Using combination tool, rotate Ramp-Lok 1 90° clockwise (Figure 6003-6).
`2. Move the combination tool to Ramp-Lok 2, and rotate 180° clockwise.
`3. Return the combination tool to Ramp-Lok 1, and complete the screen panel tensioning by
`rotating Ramp-Lok 1 an additional 90° for a total of 180°.
`
`Note! Full tensioning requires both Ramp-Loks to be rotated 180° clockwise.
`The staged tensioning ensures full contact with the screen bed and avoids
`rippling.
`
`4. Repeat procedure for remaining screen panel Ramp-Loks.
`5. To release tension, reverse sequence as shown in Figure 6003-6.
`
`SCRFFN (cid:9)
`TFI\ SIOLdFRS (cid:9)
`R (cid:9)
`
`SCREEN 2
`TENSIONERS
`l5
`
`SCREEN 3
`TENSIONERS
`
`RAMP-LOK
`
`RAMP-LOK.
`Figure 6003-5 Screen Panel Tensioner Layout
`
`Page 14 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Document No. DER06003
`Page 9 of 11
`
`CLAMPING SEQUENCE
`
`1 - Turn Ramp-Lok 1 CW to 90° position
`
`2 - Turn Ramp-Lok 2 CW to 180°position
`
`"
`
`3 - Turn Ramp-Lok 1 CW another 90° to 180° position
`
`RELEASING SEQUENCE
`
`1 - Turn Ramp-Lok 2 CCW to 90° position
`
`2 - Turn Ramp-Lok 1 CCW to 180°position
`
`3 - Turn Ramp-Lok 2 CCW another 90° to 180° position
`
`Figure 6003-6 Screen Panel Clamping and Releasing Sequence
`
`Page 15 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`Document No. DER06003
`Page 10 of 11
`
`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`SCREEN PANEL INSTALLATION
`The screen panel installation sequence shown below is done with the installer positioned on the
`tensioning side of the screen frame. The entire installation sequence may be performed from this
`side of the machine. To install screen panel, proceed as follows:
`1. Stop the flow of feed slurry to the feeder and desander/desilter.
`2. Clean residue from screen panel surfaces.
`3. De-energize vibrator motor(s), and lock out and tag out electric power.
`4. Rotate tensioning nuts of both tensioning assemblies fully counterclockwise (released).
`
`SCREEN PANEL
`
`-99.4.
`
`1;11
`
`1
`
`FIXED FINGERS
`
`SCREEN FRAME WALL
`
`HOOK STRIP
`
`- (cid:9)
`
`SLUE S LI PPEM
`
`1. Position outside edge of screen panel against inside wall of screen frame and slightly above
`fixed fingers.
`2. Move panel downward to engage outside edge of panel with fixed fingers.
`3. Continue lowering screen panel until
`it contacts the screen bed side support and fixed
`fingers fully engage the screen panel hook strip.
`
`Page 16 of 17
`
`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`

`

`UNDER-SCREEN TENSIONING ASSEMBLY
`Effective Date
`11 Sep 07
`
`Document No. DER06003
`Page 11 of 11
`
`-- 1 ENS 112141INC NU P
`
`1. Lower the opposite side of the screen panel down onto adjustable side fingers, engaging
`fingers with hook strip.
`2. Rotate tensioning nut of one tensioning assembly 90° clockwise to begin applying tension to
`screen panel (Figure 6003-6) and retain panel
`in position. Do not turn tensioning nut fully
`clockwise (180°) at this time.
`3. Rotate second tensioning nut fully 180° clockwise.
`4. Return to first tensioning nut, and rotate nut 90° clockwise to the fully clamped position.
`5. Verify that screen is in full contact with side supports, cross supports, and channel protectors.
`If panel is loose or rippled, release tension and reset adjusting nut(s) as described above to
`achieve smooth, full contact of screen panel with screen bed.
`
`INSPECTION, REPAIR, AND INSTALLATION
`Under-screen tensioning assemblies should be replaced if inspection reveals distortion, damaged
`or worn fingers, severe corrosion, or galling. If any mounting holes are elongated, contact the
`Technical Services department
`for assistance in making the repair(s). Only Under-Screen
`Tensioning assemblies in serviceable condition may be installed as shown in the preceding
`installation procedures. Replace any tensioning assembly that cannot be restored to fully
`serviceable condition.
`REPLACEMENT PARTS
`Refer to drawing 14623-00 in Section 11 to identify the components of
`tensioning assembly.
`
`the under-screen
`
`The content of this document is subject to change at any time. Information provided does not cover all details or variations possible
`with DERRICK equipment, nor does it cover every contingency that may be met in conjunction with installation, operation,
`maintenance, or troubleshooting of the equipment. Should additional information be required, or should situations arise that are not
`covered by this manual, bring the matter to the attention of your local DERRICK representative or the Service Department at
`DERRICK Corporation in Buffalo, New York.
`Copyright1 2007 by DERRICK CORPORATION
`
`Page 17 of 17
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`Derrick 2026
`IPR2016-00642
`Axon EP, Inc. and Screen Logix, LLC v. Derrick Corporation
`
`