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Document No. TOC00224 Effective Date 24 Mar 08 Supersedes 03 Mar 08 Page No. TABLE OF CONTENTS DE-7200 CENTRIFUGE GENERAL INFORMATION .................................................. Section 1 Introduction .............................................................................. DER01021 Description and Operation ....................................................... DER01122 Equipment Specifications .........................................................
Document No.TOC00224 Page 2 of 3 TABLE OF CONTENTS Effective Date Supersedes SUPPLIER DATA ................................................................. Section 12 Component Manufacturers’ Documentation ............................
Document No. DER01021 Effective Date 30 Aug 07 Page No. 1 of 4 INTRODUCTION DE-7200 CENTRIFUGE OVERVIEW This manual provides instructions for installing and operating the DE-7200 centrifuge (Figure 1021-1). The manual is divided into several sections to assist the user in readily accessing the information. Instructions include description, theory of operation, safety, installation, and maintenance.
Document No. DER01021 INTRODUCTION Page 2 of 4 Effective Date 30 Aug 07 EQUIPMENT USE The DE-7200 centrifuge is designed expressly to remove solids from slurries. In one type of processing, solids are removed and the liquid is returned for recirculation. In the other type of processing, solids are returned to the active system and the liquid is discarded. Derrick Corporation does not authorize any other use of this equipment.
INTRODUCTION Effective Date 30 Aug 07 Document No. DER01021 Page 3 of 4 HIGHLIGHTED INFORMATION Information considered important to safe and effective operation of the equipment is highlighted as shown below. Safety Issues WARNING! PRESENTS INFORMATION CRITICAL TO SAFE OPERATION AND/OR MAINTENANCE OF THE EQUIPMENT. FAILURE TO COMPLY WITH THIS INFORMATION MAY RESULT IN SERIOUS INJURY TO PERSONNEL AND/OR DEATH, OR MAJOR DAMAGE TO THE EQUIPMENT.
Document No. DER01021 INTRODUCTION Page 4 of 4 Effective Date 30 Aug 07 HOW TO USE THIS MANUAL DER XX 000 Subsection Number (000 thru 999) Section Number: 01 GENERAL INFORMATION 02 SAFETY 03 INSTALLATION 04 OPERATING INSTRUCTIONS 05 MAINTENANCE 06 SCREEN TENSIONING SYSTEMS 07 VIBRATOR MOTORS 08 NOT ASSIGNED 09 DESANDER UNITS 10 DESILTER UNITS 11 REFERENCE DRAWINGS 12 SUPPLIER DATA Derrick Document The content of this document is subject to change at any time.
Document No. DER01122 Effective Date 30 Aug 07 Page No. 1 of 6 DESCRIPTION AND OPERATION DE-7200 CENTRIFUGE GENERAL The centrifuge is a high-speed electro-mechanical machine using electronically controlled electric motors to drive the bowl assembly and conveyor. The centrifuge receives slurry through a feed component at the liquid discharge end of the machine. The slurry is dispersed into the rotating bowl, where centrifugal force is employed to separate liquid from the solids.
Document No. DER01122 Page 2 of 6 DESCRIPTION AND OPERATION Effective Date 30 Aug 07 OPERATING PRINCIPALS (CONT’D) During centrifuge operation, slurry is pumped through the feed component assembly into the center of the rotating conveyor (Figure 1122-1). The high velocity slurry is then dispersed out feed nozzles in the periphery of the conveyor cylinder. Both the feed zone and feed nozzles accelerate and change direction of the slurry to minimize pond disturbance at the bowl wall.
DESCRIPTION AND OPERATION Effective Date 30 Aug 07 Document No. DER01122 Page 3 of 6 MAJOR COMPONENTS Major components of the centrifuge (Figure 1122-2) consist of the rotating assembly, bowl and conveyor drive motors, control system, purge system, vibration switch, and case and base. The following paragraphs describe these components.
Document No. DER01122 Page 4 of 6 DESCRIPTION AND OPERATION Effective Date 30 Aug 07 Conveyor The conveyor assembly is a hollow, cylindrical auger that receives the inlet slurry into its interior, disperses it through feed nozzles to the bowl assembly, and transports the solids to the solids discharge outlet. Rotated by an electric motor through a three-stage planetary gearbox, the conveyor turns in the same direction as the bowl but at a higher rate of speed.
DESCRIPTION AND OPERATION Effective Date 30 Aug 07 Document No. DER01122 Page 5 of 6 Various inputs including main bearing temperatures, bowl speed, bowl and conveyor torques, cabinet interior temperature, and vibration are transmitted to the PLC, which then responds with corresponding outputs to govern centrifuge operation. Critical status information is displayed on the control panel, as well as alarm and fault messages that signal the operator of any potential or imminent malfunctions.
Document No. DER01122 DESCRIPTION AND OPERATION Page 6 of 6 Effective Date 30 Aug 07 VIBRATION SWITCH (CONT’D) The vibration switch is mounted on the centrifuge base in an orientation that is most affected by out-of-balance vibration of the bowl assembly. Clogging of the conveyor or worn bearings may produce sufficiently high vibration to trip the switch.
Document No. DER01222 Effective Date 30 Aug 07 Page No. 1 of 1 EQUIPMENT SPECIFICATIONS DE-7200 CENTRIFUGE Equipment specifications are presented below for the DE-7200 centrifuge. Refer to Section 11 Reference Drawings for additional information and specifications. Dimensions (Approx.) 156” L x 45” H x 81-1/2” W (3962mm x 1143mm x 2070mm) Weight (Approx.
Document No. DER01321 Effective Date 30 Aug 07 Page No. 1 of 2 SERVICES & UTILITIES REQUIRED DE-7200 CENTRIFUGE GENERAL To achieve optimum performance and reliability from your Derrick equipment, the services and utilities described below must be available at the installation site. ELECTRIC POWER For electrical service requirements, refer to the voltage label on the electrical control cabinet.
Document No. DER01321 Page 2 of 2 SERVICES & UTILITIES REQUIRED Effective Date 30 Aug 07 FEED PUMP The customer is required to supply a positive-displacement feed pump for delivering slurry to the centrifuge. A progressing cavity pump having a fixed ratio gearbox and 30 HP maximum inverterduty pump drive motor is recommended.
Document No. DER01422 Effective Date 30 Aug 07 Page No. 1 of 3 EQUIPMENT HANDLING PROCEDURES DE-7200 CENTRIFUGE RECEIVING THE EQUIPMENT Immediately upon receipt of the Derrick equipment, examine contents for damaged and/or missing components. The transportation company signed a bill of lading at the time of shipment to indicate that all items were present and accounted for, and all items were in good condition at the time of shipment.
Document No. DER01422 EQUIPMENT HANDLING PROCEDURES Page 2 of 3 Effective Date 30 Aug 07 MOVING/POSITIONING THE EQUIPMENT (CONT’D) Four reinforced lifting lugs are built into the equipment frame to allow attachment of an overheadlifting device (Figure 1422-1). Lifting points are labeled “LIFT HERE ONLY”. DO NOT attempt lifting equipment by attaching slings or similar lifting aids to either drive motor or other nondesignated portions of the unit. Use of spreader bars is recommended.
EQUIPMENT HANDLING PROCEDURES Effective Date 30 Aug 07 Document No. DER01422 Page 3 of 3 EQUIPMENT STORAGE General If equipment is not being installed immediately, it should be stored in a dry environment (50 percent relative humidity or less). A dry environment will ensure that the machine remains in the same condition as when it was received. If unit is stored outdoors, cover with a UV-resistant tarpaulin (tarp) or UV-resistant shrink-wrap. Install vents when using shrink-wrap.
Document No. DER02021 Effective Date 25 Mar 08 Supersedes 30 Aug 07 Page No. 1 of 3 WARNINGS SUMMARY DE-7200 CENTRIFUGE GENERAL This section contains a summary of WARNINGS presented throughout the manual. The WARNINGS are grouped according to the following categories: • Electrical Hazards • Equipment Handling • Operation • Maintenance • Storage SOUND WARNING! TO PROTECT AGAINST HEARING LOSS, HEARING PROTECTION SHOULD BE WORN AT ALL TIMES WHEN WORKING ON OR NEAR DERRICK MACHINES.
Document No. DER02021 WARNINGS SUMMARY Page 2 of 3 Effective Date 25 Mar 08 EQUIPMENT HANDLING WARNING! USE SPREADER BARS TO PREVENT DAMAGE WHEN LIFTING THE EQUIPMENT. WARNING! TO ENSURE PROPER BALANCE AND ORIENTATION WHEN UNIT IS RAISED AND PREVENT DAMAGE TO COMPONENTS, ATTACH LIFTING SLING ONLY AT DESIGNATED LIFT POINTS. DO NOT ATTEMPT LIFTING BY ATTACHMENT TO MOTORS OR ANY OTHER LOCATION.
WARNINGS SUMMARY Effective Date 25 Mar 08 Document No. DER02021 Page 3 of 3 MAINTENANCE WARNING! HIGH VOLTAGE MAY BE PRESENT. ALWAYS OPEN FUSED DISCONNECT SUPPLYING ELECTRIC POWER TO THE EQUIPMENT, AND LOCK OUT AND TAG OUT POWER SUPPLY BEFORE PERFORMING ANY MAINTENANCE AND/OR ADJUSTMENTS OF EQUIPMENT. STORAGE WARNING! CENTRIFUGE MAY BE DAMAGED BY STORING IN A HIGH HUMIDITY ENVIRONMENT (GREATER THAN 70% RH). EQUIPMENT MUST BE STORED IN A LOW-HUMIDITY ENVIRONMENT.
Document No. DER02888 Effective Date 22 May 08 Supersedes 30 Aug 07 Page No. 1 of 1 MATERIAL SAFETY DATA SHEETS (MSDSs) DE-7200 CENTRIFUGE Material Safety Data Sheets (MSDSs) for exterior finish products are included in this section to advise personnel of the properties and any possible hazards associated with these materials. Emergency first aid procedures, special precautions, emergency telephone number, and other relevant data are contained in the MSDSs.
(ANSI Section 4) FIRE-FIGHTING MEASURES (ANSI Section 5) Fire extinguishing media : Dry chemical or foam water fog. Carbon dioxide. Closed containers may explode when exposed to extreme heat or fire. Vapors may ignite explosively at ambient temperatures. Vapors are heavier than air and may travel long distances to a source of ignition and flash back. Vapors can form explosive mixtures in air at elevated temperatures. Closed containers may burst if exposed to extreme heat or fire. Dust explosion hazard.
TOXICOLOGICAL INFORMATION (ANSI Section 11) Supplemental health information : Contains a chemical that is moderately toxic by ingestion. Contains a chemical that is toxic by inhalation. Contains a chemical that may be absorbed through skin. Free diisocyanate may cause allergic reaction in susceptible persons. Notice - reports have associated repeated and prolonged occupational overexposure to solvents with permanent brain and nervous system damage.
Chemical Hazard Data Common Name diisobutyl ketone ethyl orthoformate butyl acetate phthalo green pigment xylene titanium dioxide acrylic polymer aliphatic polyisocyanate formaldehyde yellow iron oxide tert-butyl acetate pigment yellow 74 light aromatic solvent naphtha n-butanol ethyl 3-ethoxypropionate barium sulfate castor oil, raw hexamethylene diisocyanate oxo-heptyl acetate pseudocumene anti-settling agent rheological additive Footnotes: C=Ceiling - Concentration that should not be exceeded, even insta
(ANSI Section 3) (ANSI Section 4) Inhalation : Remove to fresh air. Restore and support continued breathing. Get emergency medical attention. Have trained person give oxygen if necessary. Get medical help for any breathing difficulty. Skin contact : Wash thoroughly with soap and water. If any product remains, gently rub petroleum jelly, vegetable or mineral/baby oil onto skin. Repeated applications may be needed. Remove contaminated clothing. Wash contaminated clothing before re-use.
Carcinogenicity : The international agency for research on cancer (IARC) has evaluated ethylbenzene and classified it as a possible human carcinogen (group 2b) based on sufficient evidence for carcinogenicity in experimental animals, but inadequate evidence for cancer in exposed humans. In a 2 year inhalation study conducted by the national toxicology program (NTP), ethylbenzene vapor at 750 ppm produced kidney and testicular tumors in rats and lung and liver tumors in mice.
Document No. DER03022 Effective Date 23 Dec 08 Supersedes 23 Jan 08 Page 1 of 15 INSTALLATION INSTRUCTIONS DE-7200 CENTRIFUGE GENERAL This section describes the recommended installation procedure for the Derrick equipment defined by the model number and drawing number associated with your equipment. The centrifuge is shipped fully assembled, except for the rotating assembly. For safety during shipment, this assembly is supported by rubber strips.
Document No. DER03022 INSTALLATION INSTRUCTIONS Page 2 of 15 Effective Date 23 Dec 08 INSTALLATION SEQUENCE Following is the sequence of steps for installing the centrifuge. The sequence presented may vary depending on the user’s facilities and previous experience with this type of equipment. 1. Read and understand all safety information in Warnings Summary DER02021 in Section 2 before installing and operating this equipment. 2.
INSTALLATION INSTRUCTIONS Effective Date Document No. DER03022 23 Dec 08 Page 3 of 15 Figure 3022-1 Required Door Opening Clearance EQUIPMENT POSITIONING AND MOUNTING Base plates having 1-9/16” x 1-9/16” (40 mm x 40 mm) centering posts (Figure 3022-2) are required when mounting the centrifuge. The base plates may be either bolted or welded to the mounting platform to properly position and prevent movement of the centrifuge. (Refer to drawing 16590-00 in Section 11 for locations of centering posts.
Document No. DER03022 INSTALLATION INSTRUCTIONS Page 4 of 15 Effective Date 23 Dec 08 LIQUID AND SOLID DISCHARGE CHUTES Observe the following design considerations when fabricating the liquid and solid discharge chutes. To determine dimensions and mounting hole arrangements, refer to drawing 16590-00 in Section 11. Liquid Discharge Chute When fabricating the chute, be certain to make the chute as straight as possible.
INSTALLATION INSTRUCTIONS Effective Date Document No. DER03022 23 Dec 08 Page 5 of 15 SHIPPING COMPONENTS Note! Do not discard the rubber strips between bearing pillow blocks, cover, and base after removal. These strips must be re-installed whenever the machine is moved to prevent damage to the base and rotating assembly bearings during transit.
Document No. DER03022 INSTALLATION INSTRUCTIONS Page 6 of 15 Effective Date 23 Dec 08 Figure 3022-5 Shipping Components Locations 4. Turn jack bolts clockwise to lift pillow blocks sufficiently to permit removal of all soft and hard rubber strips, and remove strips. 5. Clean mounting surfaces of lower pillow block halves and base, and then apply a light coating of grease or corrosion inhibitor to both surfaces. 6.
INSTALLATION INSTRUCTIONS Effective Date 23 Dec 08 Document No. DER03022 Page 7 of 15 FEED AND DISCHARGE CONNECTIONS To prevent damage to the centrifuge and piping system in case of centrifuge imbalance, vibration isolation is required. Consequently, flexible connections must be used for all feed and discharge connections. A source of fresh water or oil is to be connected to the flush fitting on the feed component for flushing the centrifuge prior to shutdown.
Document No. DER03022 Page 8 of 15 INSTALLATION INSTRUCTIONS Effective Date 23 Dec 08 PLC CONNECTOR INSPECTION General Occasionally, vibration during transport may cause connections to the PLC to become disengaged. The unsatisfactory wiring condition that results may cause a centrifuge malfunction. Before applying power to the centrifuge, confirm that all PLC connectors are securely mated as described in the procedure below.
INSTALLATION INSTRUCTIONS Effective Date Document No.
Document No. DER03022 INSTALLATION INSTRUCTIONS Page 10 of 15 Effective Date 23 Dec 08 ELECTRIC POWER CONNECTIONS WARNING! DANGEROUS VOLTAGE IS PRESENT. IF THE INPUT POWER IS SPLIT, BE SURE THAT PHASING IS CORRECT BEFORE APPLYING POWER TO CENTRIFUGE. Connection Options Connect the facility’s three-phase electric power supply to the control cabinet in accordance with the appropriate view in Figure 3022-8.
INSTALLATION INSTRUCTIONS Effective Date Document No. DER03022 23 Dec 08 Page 11 of 15 Figure 3022-9 Split Input Power Connections Polarity Test WARNING! BE CERTAIN THAT MOTORS ROTATE IN CORRECT DIRECTION. INCORRECT POLARITY OF CONVEYOR MOTOR WILL CAUSE CONVEYOR TO ROTATE AT AN INCORRECT SPEED, WHICH WILL RESULT IN PROCESSING PROBLEMS. In the following procedure, polarity is critical. Be certain that all motors rotate in the correct directions.
Document No. DER03022 INSTALLATION INSTRUCTIONS Page 12 of 15 Effective Date 23 Dec 08 ELECTRIC POWER CONNECTIONS (CONT’D) WARNING! CENTRIFUGE MUST BE OPERATED AT THE DESIGNATED SUPPLY VOLTAGE. WARNING! HIGH VOLTAGE MAY BE PRESENT. BE SURE FUSED DISCONNECT SUPPLYING ELECTRIC POWER TO THIS EQUIPMENT IS OPEN. LOCK OUT AND TAG OUT POWER SUPPLY TO PREVENT ACCIDENTAL APPLICATION OF POWER WHILE MAKING ELECTRICAL CONNECTIONS.
INSTALLATION INSTRUCTIONS Effective Date 23 Dec 08 Document No.
Document No. DER03022 Page 14 of 15 INSTALLATION INSTRUCTIONS Effective Date 23 Dec 08 SENSOR CONNECTIONS A customer-supplied cable is used for sensor connections. One end of the cable is connected to terminals in the sensor junction box as shown in Figure 3022-11, and the opposite end is connected to the plug supplied with the centrifuge (Figure 3022-12). Connect leads to the corresponding numbered terminals (1 through 16) in the plug.
INSTALLATION INSTRUCTIONS Effective Date Document No. DER03022 23 Dec 08 Page 15 of 15 SENSOR CONNECTIONS (CONT’D) Figure 3022-12 Sensor System Plug Connections COMPRESSED AIR CONNECTION TO PURGE SYSTEM For explosion-proof Control Cabinet, supply compressed air at the required pressure and flow rate to the purge control unit. Connect compressed air supply in accordance with the Expo Technologies MiniPurge documentation in Section 12.
Document No. DER04098 Effective Date 06 Jun 08 Supersedes 30 Aug 07 Page No. 1 of 19 OPERATING INSTRUCTIONS DE-7200 CENTRIFUGE GENERAL This section includes initial and normal startup, operation, shutdown, and emergency shutdown procedures for the centrifuge. These procedures are for use only by trained personnel who are qualified to operate high-speed rotating equipment. The centrifuge is designed to be operated only for the purpose specified at the time of purchase.
Document No. DER04098 OPERATING INSTRUCTIONS Page 2 of 19 Effective Date 06 Jun 08 PURGE SYSTEM (HAZARDOUS ENVIRONMENT ONLY) Only the centrifuge operating in a hazardous environment is equipped with the purge system. During startup, the purge system drives out all gases from the cabinet interior and then maintains positive pressure within the control cabinet to prevent potentially explosive gases from entering.
OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 3 of 19 Figure 4098-1 Home Screen Operation The Operation screen (Figure 4098-2) is shown when Operation is selected on the Home screen. It permits the operator to view and adjust current operating information for the bowl, conveyor, and pump. These include set and actual bowl and conveyor RPMs and torque percentages, set and actual feed pump flow rate, and bearing temperatures.
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OPERATING INSTRUCTIONS Effective Date 06 Jun 08 Document No. DER04098 Page 5 of 19 Clean Out The Clean Out screen (Figure 4098-3) is used to set parameters for operating the bowl and/or conveyor to remove accumulated process material that is impeding rotation. With this screen displayed, the operator selects the desired bowl and conveyor RPMs for the cleanout process. During cleanout, the actual RPMs and torque percentages are displayed below the setpoints.
Document No. DER04098 OPERATING INSTRUCTIONS Page 6 of 19 Effective Date 06 Jun 08 Centrifuge Status Current performance information is shown on the Centrifuge Status screen (Figure 4098-4). Parameters displayed include bearing temperatures, open or closed status of vibration switch, air conditioner operation, and operating hours. Operating status of the air conditioner compressor motor, evaporator blower motor, and refrigerant pressure are shown. Exiting this screen returns to the previous screen.
OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 7 of 19 Bearing Temperatures Bearing temperature trends may be viewed in graphical form on the Bearing Temperature screen (Figure 4098-6). Temperatures are updated in accordance with a pre-set interval, and scroll buttons are provided to facilitate examination of trends over time. Solid and liquid end temperatures are displayed at the right side of the screen.
Document No. DER04098 OPERATING INSTRUCTIONS Page 8 of 19 Effective Date 06 Jun 08 Figure 4098-7 Setup Screen Login The Login screen (Figure 4098-8) permits authorized personnel to enter a password required to display restricted screens. These screens permit supervisory personnel to re-set operating characteristics and thresholds that govern centrifuge operation.
OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 9 of 19 Figure 4098-9 Motor Torque Trend Screen VFD STATUS SCREENS A status screen is provided for each VFD (Figure 4098-10 through 4098-13) to permit review of current VFD status information.
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OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 11 of 19 Figure 4098-13 VFD Temperature Trend Screen FAULT RESET SCREEN The Fault Reset screen (Figure 4098-14) displays the operational condition of all three VFDs. It may be selected from either the Clean Out or Operation screen.
Document No. DER04098 OPERATING INSTRUCTIONS Page 12 of 19 Effective Date 06 Jun 08 INITIAL STARTUP Perform the initial startup procedure when the centrifuge is being started for the first time following installation or after the machine has been relocated. Before beginning the procedure, verify the following: 1. All tools, documents, and shipping components have been removed and there are no obstructions to operation. 2. All personnel are clear of equipment.
OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 13 of 19 NORMAL STARTUP Perform the following procedure at each centrifuge startup: NORMAL STARTUP Step Procedure 1 Without electric power applied, open cover and rotate bowl assembly manually to check that the bowl turns freely and no rubbing is felt. 2 Close cover, tighten all cover bolts to required torque (refer to DER05029), and ensure that all guards are in place.
Document No. DER04098 Page 14 of 19 OPERATING INSTRUCTIONS Effective Date 06 Jun 08 OPERATION (CONT’D) The following parameters affect centrifuge operation: • Feed rate • Pond depth • Bowl speed • Conveyor speed Adjustment of one parameter may produce the desired clarity of liquid effluent and solids dryness. Or the desired performance may be achieved by further adjustment. It is important to understand the interdependence of the operating parameters.
OPERATING INSTRUCTIONS Effective Date 06 Jun 08 Document No. DER04098 Page 15 of 19 Both the conveyor speed setting and actual conveyor speed are shown on the control panel. In addition, the conveyor torque percentage is shown to assist in optimizing conveyor speed to produce the desired solids dryness and processing speed. Since the conveyor differential speed is controlled by the PLC relative to the bowl speed setting, wiring polarity of electrical components is critical.
Document No. DER04098 OPERATING INSTRUCTIONS Page 16 of 19 Effective Date 06 Jun 08 4. Set all six weir plates to the same diameter. 5. Re-install access plate on case cover. Figure 4098-16 Weir Plate Adjustment Differential Speed/Conveyor Torque Generally, a faster conveyor speed results in lower conveyor torque, as solids are discharged faster and usually wetter. Reducing conveyor speed must be done slowly and cautiously, allowing steady-state to be reached before further reduction.
OPERATING INSTRUCTIONS Effective Date Document No. DER04098 06 Jun 08 Page 17 of 19 Gearbox At regular intervals, visually inspect gearbox for oil loss and replenish if necessary (refer to DER05023). To perform the inspection, shut down, lockout, and tag out centrifuge, remove belt guard, and open case cover. The likely sources of leakage are the input shaft seal and areas around solids discharge openings of the drum. If oil leakage is found, the gearbox must be removed and overhauled.
Document No. DER04098 OPERATING INSTRUCTIONS Page 18 of 19 Effective Date 06 Jun 08 NORMAL SHUTDOWN The normal shutdown procedure is to be used for controlled stopping of operation. Normal shutdown is performed for routine cleaning, lubrication, inspection, adjustment, end of shift, or other activity requiring the machine to be stationary. NORMAL SHUTDOWN Step 1 2 Procedure Stop the feed pump. Initially continue the supply of fresh flushing water or oil to remove all solids from conveyor and bowl.
OPERATING INSTRUCTIONS Effective Date 06 Jun 08 Document No. DER04098 Page 19 of 19 Excessive Vibration Excessive vibration of the centrifuge will cause the vibration switch to interrupt electric power to the centrifuge run relay, shutting down the machine. Such excessive vibration may occur during startup or normal operation due to slumping of the wall cake or other unbalanced condition of the bowl.
Document No. DER05023 Effective Date 24 Apr 08 Supersedes 28 Mar 08 Page No. 1 of 5 PREVENTIVE MAINTENANCE DE-7200 CENTRIFUGE GENERAL Preventive maintenance consists of overall inspection, cleaning, and lubrication. Routine maintenance will ensure maximum life and trouble-free operation. While the maintenance schedule presented in this section is not rigid, modifications should be based on experience with operating the equipment at your facilities.
Document No. DER05023 PREVENTIVE MAINTENANCE Page 2 of 5 Effective Date 24 Apr 08 RECOMMENDED ROUTINE MAINTENANCE (CONT’D) Greasing Bearings The main bearings, conveyor bearing, bowl drive motor, and conveyor drive motor are equipped with grease fittings. Clean each fitting before greasing, and inject the specified type and quantity of grease listed in Figure 5023-1. WARNING! USE ONLY SPECIFIED PRODUCTS. BEFORE CONNECTING GREASE GUN, REMOVE ALL VISIBLE TRACES OF GREASE FROM FITTINGS. No.
PREVENTIVE MAINTENANCE Effective Date 24 Apr 08 Document No. DER05023 Page 3 of 5 Gearbox Oil Change Change gearbox oil at intervals listed in Figure 5023-1. To change oil, proceed as follows: 1. Shut down, and lockout and tag out centrifuge. 2. Remove screws securing top cover, and open cover. 3. Place a suitable container capable of retaining 5 quarts (5.5 liters) of oil beneath gearbox. 4. Rotate gearbox until one drain plug is at bottom of gearbox. 5.
Document No. DER05023 PREVENTIVE MAINTENANCE Page 4 of 5 Effective Date 24 Apr 08 Drive Belts The drive belts should be tensioned periodically and replaced if inspection reveals damage or deterioration. To tension and/or replace the belts, proceed as follows: WARNING! ALWAYS ALLOW ROTATING ASSEMBLY TO COAST TO A COMPLETE STOP BEFORE REMOVING BELT GUARD. 1. Shut down, lock out, and tag out electric power to the centrifuge. 2. Remove belt guard. 3.
PREVENTIVE MAINTENANCE Effective Date 24 Apr 08 Document No. DER05023 Page 5 of 5 Figure 5023-3 Drive Belt Tensioning Rotating Assembly Maintenance of the rotating assembly requires disassembly and can only be performed with the assembly removed from the case. After removal, the rotating assembly is oriented with the solid end down to facilitate removal of the liquid bowl head and conveyor.
Document No. DER05024 Effective Date 28 Mar 08 Supersedes 30 Aug 07 Page No. 1 of 5 MAIN BEARING REPLACEMENT DE-7200 CENTRIFUGE GENERAL This procedure describes replacement of the main bearings. Excessive noise, vibration, or high temperature during centrifuge operation may indicate defective bearings. If such conditions are evident, the bearings should be inspected for looseness and replaced if necessary. Bearing replacement must be performed by properly trained and qualified personnel.
Document No. DER05024 MAIN BEARING REPLACEMENT Page 2 of 5 Effective Date 28 Mar 08 Bearing Removal (Cont’d) 6. Loosen nuts securing bowl drive motor to base, turn tensioning bolt to release tension, and remove belts from bowl sheave. 7. Remove bolts, flat washers, and lockwashers securing pillow blocks to base at liquid and solid ends. 8. Disconnect leads to liquid and solid end temperature sensors and speed sensor at junction box on centrifuge base. 9.
MAIN BEARING REPLACEMENT Effective Date Document No. DER05024 28 Mar 08 Page 3 of 5 To remove the liquid end main bearing, proceed as follows: 1. Remove screws securing clamping ring (Figure 5024-2) to liquid bowl head, loosen setscrews securing clamping ring, and remove clamping ring. 2. Remove felt ring, packing seal, O-ring, and retaining washer from bowl head. 3. Using a suitable puller, remove liquid end bearing from bowl head shaft. 4. Remove flinger and O-ring from shaft.
Document No. DER05024 Page 4 of 5 MAIN BEARING REPLACEMENT Effective Date 28 Mar 08 Cleaning, Inspection, and Repair (Cont’d) 4. Inspect pillow blocks for corrosion, distortion, nicks, cracks, burrs, fractures, or other defects. Repair any minor defects, or replace if serious defects or cracks are found. 5. Replace any component that cannot be easily repaired. 6. Replace all O-rings, seals, and bearings. 7. Place all cleaned components in clean plastic bags to prevent contamination.
MAIN BEARING REPLACEMENT Effective Date Document No. DER05024 28 Mar 08 Page 5 of 5 8. Install drive belts on motor and bowl assembly sheaves, and tension belts in accordance with DER05023. 9. Install flexible coupling half onto gearbox shaft at location noted in Removal. 10. Insert spider into flexible coupling half on motor shaft, and slide coupling half back into engagement with coupling half on conveyor drive gearbox shaft. Set gap between coupling halves at about 0.125” (3mm).
Document No. DER05025 Effective Date 28 Mar 08 Supersedes 30 Aug 07 Page No. 1 of 4 CONVEYOR BEARING REPLACEMENT DE-7200 CENTRIFUGE GENERAL This procedure describes replacement of the conveyor bearing. This procedure requires removal of the conveyor assembly from the bowl assembly. Excessive noise or vibration during centrifuge operation may indicate a defective bearing. If such conditions are evident, the conveyor should be removed and the bearing inspected for looseness and replaced if necessary.
Document No. DER05025 Page 2 of 4 CONVEYOR BEARING REPLACEMENT Effective Date 28 Mar 08 REMOVAL (CONT’D) Figure 5025-1 Removing Conveyor From Bowl Assembly 7. Remove screws securing liquid bowl head to bowl assembly, and install jackscrews in four locations around periphery of bowl head. 8. Attach a suitable hoist to liquid bowl head, and turn jackscrews clockwise in equal stages to separate bowl head from bowl assembly, and operate hoist to lift and remove bowl head from bowl assembly.
CONVEYOR BEARING REPLACEMENT Effective Date 28 Mar 08 Document No. DER05025 Page 3 of 4 13. Using a suitable puller, remove bearing from bearing housing and then remove second shaft seal from housing. 14. Discard bearing and shaft seals. Figure 5025-2 Conveyor Bearing Detail CLEANING, INSPECTION, AND REPAIR 1. Clean all components with a suitable cleaner/degreasing agent, and blow dry with filtered compressed air. Remove any corrosion to facilitate inspection. 2.
Document No. DER05025 CONVEYOR BEARING REPLACEMENT Page 4 of 4 Effective Date 28 Mar 08 CLEANING, INSPECTION, AND REPAIR (CONT’D) 8. Replace any component that cannot be easily repaired. Replace all shaft seals and bearings. 9. Place all cleaned components in clean plastic bags to prevent contamination. INSTALLATION This procedure describes installation of the liquid end conveyor bearing. If the gearbox bearing is found to be loose, the gearbox must be replaced or rebuilt as well (refer to DER05037).
Document No. DER05026 Effective Date 28 Mar 08 Supersedes 30 Aug 07 Page No. 1 of 3 ROTATING ASSEMBLY REMOVAL AND INSTALLATION DE-7200 CENTRIFUGE GENERAL This procedure describes removal and installation of the rotating assembly. Removal may be required to clean out, inspect, or perform maintenance on the rotating assembly. Excessive noise or vibration during centrifuge operation may indicate defective main or conveyor bearings.
Document No. DER05026 ROTATING ASSEMBLY REMOVAL & INSTALLATION Page 2 of 3 Effective Date 28 Mar 08 REMOVAL (CONT’D) 9. Lower rotating assembly onto a cradle that is capable of supporting its weight. 10. Disassemble rotating assembly to the extent necessary for inspection, repair, and parts replacement. Figure 5026-1 Bearing Pillow Block CLEANING, INSPECTION, AND REPAIR Clean, inspect, and repair rotating assembly as follows: 1.
ROTATING ASSEMBLY REMOVAL & INSTALLATION Effective Date Document No. DER05026 28 Mar 08 Page 3 of 3 7. Check main bearings and conveyor bearings for looseness, noise, or rubbing. Replace any defective bearings in accordance with replacement procedures in DER05024 and DER05025. 8. Inspect pillow blocks for corrosion, distortion, nicks, cracks, burrs, fractures, or other defects. Repair any minor defects, or replace if serious defects or cracks are found.
Document No. DER05029 Effective Date 14 Oct 08 Supersedes 30 Jun 08 Page No. Page 1 of 2 HARDWARE TORQUE SPECIFICATIONS DE-7200 CENTRIFUGE GENERAL Use only hardware that is approved by Derrick® Corporation. The use of potentially inferior, nonDerrick approved hardware may result in serious injury to personnel and/or damage to equipment. Additionally, any warranty in force, whether written or implied, may be voided by use of unapproved hardware.
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Document No. DER05031 Effective Date 10 Dec 07 Page No. 1 of 3 RECOMMENDED SPARE PARTS LIST DE-7200 CENTRIFUGE - VARIABLE FREQUENCY DRIVE GENERAL This section presents a list of the recommended spare parts required to support a single DE-7200 centrifuge for one year. This list includes the components most susceptible to wear; however, all potential part replacements cannot be predicted. The complete spare parts inventory should be based on the user’s experience with similar equipment.
Document No. DER05031 RECOMMENDED SPARE PARTS LIST Page 2 of 3 Effective Date PART NO. DESCRIPTION 10 Dec 07 REC.
RECOMMENDED SPARE PARTS LIST Effective Date Document No. DER05031 10 Dec 07 Page 3 of 3 PART NO. DESCRIPTION REC. QTY Electrical Parts List - 16593-00 G0007265 RTD Sensor, Liquid End 1 G0007712 RTD Sensor, Solid End 1 G0007861 Speed Sensor 1 Control Enclosure - 16472-00-002 G0007698 Fuse, 60 Amp, Class J 3 G0007981 Fuse, 1.5 Amp 3 G0007225 Fuse, 150 Amp, Class J 2 G0007632 Fuse, 200 Amp Class J 3 G0002910 Fuse, 2.5 Amp 600 Vac 2 G0002911 Fuse, 7.
Document No. DER05105 Effective Date 15 Jul 08 Supersedes Page No. 25 Feb 08 1 of 16 TROUBLESHOOTING DE-7200 CENTRIFUGE GENERAL Although equipment failure is unlikely, malfunctions due to operating error or other problem can result in unnecessary machine down-time and should be corrected as soon as possible. The troubleshooting procedures presented in this section will assist technicians in isolating and correcting malfunctions.
Document No. DER05105 TROUBLESHOOTING Page 2 of 16 Effective Date 15 Jul 08 TROUBLESHOOTING DE-7200 CENTRIFUGE Possible Cause Isolation Procedure & Corrective Action Failure Mode 1: Acceptable liquid, Cake Too Thin Insufficient solids in feed Increase feed rate. Increase weir opening (refer to DER04098). Reduce differential speed. Drop in feed pump rate Increase feed rate. Check feed pump; if required, check wear and replace worn parts. Check pump shaft seal, and correct any defects.
TROUBLESHOOTING Effective Date Document No. DER05105 15 Jul 08 Page 3 of 16 TROUBLESHOOTING DE-7200 CENTRIFUGE Possible Cause Isolation Procedure & Corrective Action Failure Mode 3: Excessive Vibration (Cont’d) Conveyor bearing defective due to inadequate lubrication, product entry past seal, or normal wear Remove and disassemble bowl, and inspect conveyor bearing (refer to DER05025). Replace conveyor bearing. Bowl assembly main bearings defective.
Document No. DER05105 TROUBLESHOOTING Page 4 of 16 Effective Date 15 Jul 08 TROUBLESHOOTING DE-7200 CENTRIFUGE Possible Cause Isolation Procedure & Corrective Action Failure Mode 8: Excessively High Main Bearing Temperature Insufficient lubrication Lubricate bearings (refer to DER05023). Excessive grease Remove grease fitting, and direct jet of filtered compressed air to remove grease. Incorrect grease Lubricate with recommended grease (refer to DER05023).
TROUBLESHOOTING Effective Date Document No. DER05105 15 Jul 08 Page 5 of 16 Alarm and Fault Messages Cause Corrective Action Bowl High Torque Alarm, Reduce Feed Rate Bowl torque exceeds pre-set limit Reduce feed rate. Bowl High Torque Fault and Shutdown, Perform Cleanout and Reduce Feed Rate Bowl torque exceeds pre-set limit Following automatic shutdown, perform cleanout procedure to remove solids buildup, and re-start centrifuge at reduced feed rate.
Document No. DER05105 TROUBLESHOOTING Page 6 of 16 Effective Date 15 Jul 08 Alarm and Fault Messages Cause Corrective Action Bowl VFD Undervoltage Alarm, Ref Troubleshooting Section of User Manual Incoming power loss or low voltage supply Monitor and correct incoming power defect(s).
TROUBLESHOOTING Effective Date Document No. DER05105 15 Jul 08 Page 7 of 16 Alarm and Fault Messages Cause Corrective Action Communication Failure with Solid End Bearing Temp Sensor (Cont’d) Poor connection at liquid end transmitter/intrinsic barrier or defective transmitter If reading is constantly 392°F (200°C), check and correct connection; replace transmitter, if defective. Defective bowl VFD Check and replace VFD, if defective.
Document No. DER05105 TROUBLESHOOTING Page 8 of 16 Effective Date 15 Jul 08 Alarm and Fault Messages Cause Corrective Action Conveyor VFD Ground Warn Alarm, Ref Troubleshooting Section of User Manual Conveyor motor has path to ground Check for ground in conveyor motor and connections to drive output, and correct defect.
TROUBLESHOOTING Effective Date Document No. DER05105 15 Jul 08 Page 9 of 16 Alarm and Fault Messages Cause Corrective Action Emergency Stop Switch Activated, Shutdown EMERGENCY STOP pressed Remove cause for emergency stop, and then re-start centrifuge.
Document No. DER05105 TROUBLESHOOTING Page 10 of 16 Effective Date 15 Jul 08 Alarm and Fault Messages Cause Corrective Action Pump VFD Drive OL Alarm, Ref Troubleshooting Section of User Manual Pump drive motor drawing excessive current Replace motor, if defective, or remove other cause of excessive current draw. Pump VFD Fault, Ref Troubleshooting Section of User Manual VFD fault detected, causing shutdown Check and replace pump VFD.
TROUBLESHOOTING Effective Date Document No. DER05105 15 Jul 08 Page 11 of 16 Alarm and Fault Messages Cause Corrective Action Solid End Main Bearing High Temperature Fault and Shutdown Insufficient bearing lubrication Lubricate bearings (refer to DER05023). Excess grease Remove grease fitting, and direct jet of filtered compressed air to remove grease. Incorrect grease Lubricate with recommended grease (refer to DER05023). Defective bearing Replace both main bearings (refer to DER05024).
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TROUBLESHOOTING Effective Date 15 Jul 08 Document No. DER05105 Page 13 of 16 CONTROL COMPONENT INDICATORS Various indicators are provided to display the operational status of components in the control cabinet. Figures 5105-3 through 5105-6 locate and define the indications shown on these components. Where applicable, corrective actions are included to assist the operator in fault analysis. Dangerously high voltage is present in the control cabinet.
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Document No. DER05105 Page 16 of 16 TROUBLESHOOTING Effective Date 15 Jul 08 CONTROL COMPONENT INDICATORS (CONT’D) Figure 5105-5 Transmitter/Intrinsic Barrier Indicators 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.
PURGE SYSTEM CONDENSER FAN MOTOR M +BLU I.S. SWITCH 1.5A 1.5A 2 CLR 1.
AIR CONDITIONER E-STOP-32 VIB MON-31 SPEED SENSOR-30 18 17 E-STOP-32 VIB MON-31 BOWL SPD SENSOR-30 PUMP DRIVE A/C PRESS. FAILURE-28 A/C COMP.
CONVEYOR DRIVE BOWL DRIVE RJ45 RJ45 PUMP DRIVE RJ45 POWER SUPPLY 120VAC PLC RJ45 RJ45 RJ45 ETHERNET SWITCH RJ45 RJ45 RJ45 +24V -24V +24VDC -24VDC OPERATOR PANEL 24VDC RJ45 +24VDC - 24VDC USB IDC MOUSE / POINTER ETHERNET CONNECTIONS
Document No. DER05037 Effective Date 28 Mar 08 Supersedes 03 Mar 08 Page No. 1 of 8 GEARBOX REMOVAL AND INSTALLATION DE-7200 CENTRIFUGE GENERAL This procedure describes removal and installation of the gearbox. This procedure must be performed by properly trained and qualified personnel. To prevent contamination to bearings and internal components of the centrifuge, this procedure must be performed in a clean environment. Note! All attaching hardware must be correctly tightened.
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GEARBOX REMOVAL & INSTALLATION Effective Date Document No. DER05037 28 Mar 08 Page 3 of 8 Figure 5037-3 Temperature and Speed Sensors - Solid End 11. Select a suitable hoist capable of lifting at least 4000 lbs (1800 kg) to rotating assembly. 12. Attach hoist to rotating assembly, properly balancing the hoisting straps to ensure that the assembly remains horizontal during lifting. Slowly hoist rotating assembly until clear of base. 13.
Document No. DER05037 Page 4 of 8 GEARBOX REMOVAL & INSTALLATION Effective Date 28 Mar 08 REMOVAL (CONT’D) 18. Note orientation of parts on gearbox shaft, and remove shell (with speed sensor cam attached), grease adjuster, and spacer ring from shaft. 19. Working through two effluent ports at the liquid end, remove two M12 screws 180° apart from the conveyor. Install two plates over the ports (Figure 5037-5), insert a long M12 screw through each plate, and lightly tighten screws.
GEARBOX REMOVAL & INSTALLATION Effective Date 28 Mar 08 Document No.
Document No. DER05037 GEARBOX REMOVAL & INSTALLATION Page 6 of 8 Effective Date 28 Mar 08 CLEANING, INSPECTION, AND REPAIR After removing and disassembling rotating assembly, clean, inspect, and repair as follows: 1. Clean all components with a suitable cleaner/degreasing agent, and blow dry with filtered compressed air. Remove any corrosion to facilitate inspection. 2. Inspect all parts for scratches, nicks, burrs, or deformation that may affect suitability for returning to service.
GEARBOX REMOVAL & INSTALLATION Effective Date Document No. DER05037 28 Mar 08 Page 7 of 8 Figure 5037-8 Gearbox O-Ring Location WARNING! IN THE FOLLOWING STEP, USE EITHER A BEARING HEATER OR A CLEAN HEATED OIL BATH TO HEAT BEARING INNER RACE. DO NOT USE A TORCH, AS THIS WILL DAMAGE THE BEARING. 11. Using a bearing heater or heated oil bath, heat main bearing inner race to about 230°F (110°C). Wearing protective gloves, install bearing on journal. 12.
Document No. DER05037 GEARBOX REMOVAL & INSTALLATION Page 8 of 8 Effective Date 28 Mar 08 INSTALLATION (CONT’D) 18. Re-install rotating assembly into centrifuge as follows: a. Apply rust preventive compound to mating surfaces of pillow blocks and centrifuge base. b. Using hoist, lift rotating assembly from cradle and slowly lower onto centrifuge until pillow blocks contact base. c.
Document No. DER11000 bvacu-Flos Effective Date Page 16 May 08 1 of 1 REFERENCE DRAWINGS DE-7200 VFD CENTRIFUGE This section contains Derrick engineering drawings for your equipment. These drawings are included to provide assistance in troubleshooting, repair, and parts ordering.
D C B A ITEM QTY 01 X 02 1 03 1 04 1 05 1 06 1 07 1 08 1 09 1 10 1 11 1 12 1 13 1 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1 22 1 23 1 24 1 25 2 26 1 27 3 28 2 29 2 30 1 31 3 32 3 33 1 34 6 35 2 36 1 37 2 38 2 39 2 40 6 41 3 42 1 43 2 44 2 45 1 46 1 47 1 48 1 49 1 50 1 51 1 52 2 53 1 54 1 55 1 56 1 57 1 58 1 59 1 60 1 61 1 62 1 63 1 64 1 65 1 66 2 67 2 68 1 69 1 70 1 71 1 72 2 73 1 74 1 75 3 76 1 77 1 78 1 79 8 80 2 81 1 82 1 83 1 84 1 85 1 86 1 87 1 88 8 89 1 90 1 91 2 92 35 93 28 94 13 95 1 96 1 97 1 98
8 7 6 5 4 3 2 1 Parts List D C B A ITEM QTY DRAWING NUMBER 01 X 16472-01-005 02 1 16396-01-003 03 1 16400-01-003 04 1 16402-01-001 05 1 16404-01-004 06 1 16404-02-004 07 1 16404-03-004 08 1 16404-01-003 09 1 16405-01 10 1 G0002881 11 1 16403-01 12 1 16609-01 13 1 15197-01-001 14 1 G0007573 15 1 G0007690 16 1 G0007689 17 1 G0007588 18 1 G0002603 19 1 G0002604 20 1 G0008261 21 2 G0008262 22 1 G0007210 23 3 G0007211 24 2 G0007213 25 2 G0007610 26 1 G0007221 27 3 G0007698 28 3 G0007223 29 1 G000799
PE-S-014-09 rev. 01/15/08 RECOMMENDED THERMAL UNIT SELECTION TABLE FOR DERRICK® SUPPLIED MANUAL STARTERS DERRICK VIBRATING MACHINES F, FX, K, KX, L, LX, T, TX MOTORS E, EX, M, MX, SG, SGX MOTORS R, RX MOTORS A, C, N MOTORS 575V.A.C. 460V.A.C. 230V.A.C. 215V.A.C. 440V.A.C. 380V.A.C. 220V.A.C. 60Hz 60Hz 60Hz 60Hz 50Hz 50Hz 50Hz 1.5HP 1.5HP 1.5HP 1.5HP 1.5HP 1.5HP 1.5HP = = = = = = = 575V.A.C. 460V.A.C. 230V.A.C. 215V.A.C. 440V.A.C. 380V.A.C. 220V.A.C. 60Hz 60Hz 60Hz 60Hz 50Hz 50Hz 50Hz 2.5HP 2.
bvacu-Flos Document No. DER12017 Effective Date 30 Aug 07 Page No. 1 of 1 SUPPLIER DATA DE-7200 LARGE BOWL CENTRIFUGE GENERAL This section contains manufacturers’ manuals, bulletins, instructions, and other technical data for components installed on the centrifuge. Refer to Section 11 - Reference Drawings for the Derrick assembly drawings, parts lists, and electrical diagrams.
® Document No.: PE-S-069-03-03 CERTIFICATE OF ORIGIN Equipment: Centrifuge Equipment Model: DE-1000 GBD, DE-1000 FHD, DE-1000 VFD Characteristics: 0-600VAC, 50/60Hz, 3PH Derrick Corporation certifies that the above described articles are of the growth, product, or manufacture of the United States of America and the prices true and correct. Material furnished is in accordance with the requirements of order.
® Document No.: PE-S-009-08-00 CERTIFICATE OF QUALITY Equipment: Centrifuge Equipment Model: DE-1000 GBD, DE-1000 FHD, DE-1000 VFD Characteristics: 0-600VAC, 50/60Hz, 3PH Derrick Corporation certifies that the delivered goods for the above referenced order conforms to the requirements of the specified order in that all construction materials and components are new and unused, manufactured for this order, and that the goods are free of any known defects as to their design, material, and workmanship.
® Document No.: PE-S-073-04-00 SHIPPING FINAL INSPECTION AND RUN TEST CERTIFICATE Equipment: Centrifuge Equipment Model: DE-1000 GBD, DE-1000 FHD, DE-1000 VFD Characteristics: 0-600VAC, 50/60Hz, 3PH The equipment listed above was inspected and found to be in conformance with Derrick’s internal coating, run test, and assembly inspection documents that were required for the type of equipment manufactured in accordance with the Derrick Quality System.
® Document No: PE-S-036-02-06 CERTIFICATE OF CONFORMANCE Equipment: Mining & Oilfield equipment manufactured specifically for Hazardous Location Areas including but not limited to: Flo-Line Cleaners, Primers, Agitators, Degassers, Centrifuges, Centrifugal Pumps, Scalpers, etc. Rating and principal characteristics: 0 - 600VAC , 50/60Hz, 3PH Model/Type ref.: Various Additional information: None This product was found to be in conformance with (as a minimum): U.L.
Document No. DER13000 Effective Date 15 Apr 05 Page No. 1 of ___ INSTALLATION AND MAINTENANCE LOG PURPOSE The ruled, blank pages provided will assist the customer in establishing and maintaining historical information accumulated during the installation and operation of the Derrick equipment. The resultant log is valuable for adjusting maintenance intervals and intercepting trends that may indicate the need for changing operating procedures.
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INSTALLATION AND MAINTENANCE LOG Effective Date Notes: 15 Apr 05 Document No.
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INSTALLATION AND MAINTENANCE LOG Effective Date Notes: 15 Apr 05 Document No.
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