Section 1 Introduction

Transcription

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2 Section 1 Introduction 1.1 General Description The Brodie BA-33 and BA-33T are precision-made instruments, incorporating a positive displacement BiRotor meter, vapor release and strainer, differential pressure control valve, and an accuracy adjustment device (Adjuster or ATC respectively), and designed to provide accurate flow measurement in LPG tank truck applications. 1.2 Description - Measuring Unit The principle of operation of the Brodie BiRotor Meter is embodied in the function of the two rotors which are the only moving parts within the measuring unit. They are always dynamically balanced but hydraulically unbalanced. The rotors are not in metal-to-metal contact with one another or with the housing in which they rotate. They are maintained in proper timed relationship with one another by helical gears. They divide the volume being measured into segments, separate each segment from the flowing stream momentarily, then return them to the stream. The segments of flow are counted and the results are transferred to a totalizing counter or other flow recording device by means of a gear train. It is unique in that it does not use any sliding vanes or reciprocating parts nor are there any shock loads on the mechanism during operation resulting from the shifting of offbalance masses. An accuracy Adjuster, located on the output shaft of the counter drive gearing, permits the operator at the time of installation, to adjust output of the measuring unit to read in an exact number of units of volume. Thus the accuracy Adjuster acts as a variable gear changer (similar to the speeding up or slowing down of the timing of a watch) and allows an adjustment of ±3% of meter throughput. Registers are available with or without ticket printers. The Model BA-33 BiRotor Meter is designed especially for all pump operated tank trucks metering LPG products. The BA-33 is standard with a combination vapor release strainer and differential valve with built-in check feature. Two models are available: BA-33 with standard Adjuster and BA-33T with combination Adjuster and automatic temperature compensator. 1.3 Description - Vapor Release See Figure 1.1. The vapor release is float operated. In its normal vapor-free operating condition, the vapor chamber is filled with the liquid product flowing through the meter. As vapor is released from the liquid product, it begins to accumulate in the vapor chamber where it begins to displace the liquid product. As the liquid product is displaced, the float, which is mechanically connected to the poppet pilot ball, lowers itself in the vapor chamber. When the float is at a point low enough to unseat the poppet pilot ball, vapor pressure within the vapor chamber is permitted to exert force on top of a diaphragm which controls the poppet. This pressure causes the poppet to open, thereby releasing the vapor from the vapor chamber where it is carried to the storage tank. Elimination of the vapor permits the chamber to refill with the liquid product. This causes

3 the float to rise. The mechanical linkage then reseats the poppet thus closing the vapor release. 1.4 Description - Differential Pressure Control Valve See Figure 1.2. The differential pressure valve, located on the outlet of the meter, assures that the pressure on the outlet of the meter is greater than the product vapor pressure. A pressure sensing connection is piped from the outlet of the vapor chamber of vapor release to the spring loaded side of the differential pressure valve piston, When the pressure of the product flow, applied to the nose of the valve piston, exceeds that of the tank vapor pressure and the piston spring force, the valve opens thus permitting flow. The differential pressure valve prevents vapors that accumulate between the pump and meter from passing through the meter. When the vapor release opens to release vapor, the pressure across the differential valve piston is balanced and the valve will be closed during vapor release time. A spring loaded check valve is incorporated into the nose of the valve piston to allow rapid check-closure of the valve. 1.5 Meter Model Number The model number and serial number appear on the name plate attached to the meter body. The Model BA-33 utilizes a series 4200 Adjuster, (Reference Figure 6.1, item 13.) The Model BA-33T utilizes an Automatic Temperature Compensator Assembly. (Reference Figure 6.1, item 21.) 1.6 Specifications The following specifications apply to the meter unless otherwise noted. Caution: Do not use this meter in excess of the values specified below.

4 Materials of Construction Body and Housing: Ductile Iron Rotors : Aluminum with Nitralloy Shaft Gears: Stainless Steel Bushings: Carbon filled Teflon Ball Bearings: Stainless Steel Strainer Screen: 80 Mesh Stainless Steel "0" Rings: Buna N Differential Valve: Ductile Iron Ratings Complies with NFPA No. 58 (ANSI Z106.1). Complies with ANSI (U.L. 25). Working pressure: Maximum of 350 P.S.I.G. ( kpa) Meets or exceeds hydrostatic pressure test of 1750 P.S.I. ( kpa) or five times the maximum working pressure. Operating Temperature: Maximum of 150 F (66 C) Minimum of -20 F (-29 C) Performance Accuracy and Repeatability Meets requirements as set forth in U. S. Bureau of Standards Handbook 44. Typical Accuracy Curve Temperature Compensator (Model BA-33T) Base temperature can be locked out for gross (uncompensated) proving of meter. For Anhydrous Ammonia, Model BA-33 (less red metal with Neoprene seals) and separate Series Automatic Temperature compensator must be used. For complete details on the Series 4400 ATC reference Design Specification IS) DS Connections 1-1/2" or 2" NPT. Two (2) Inlet connections to facilitate ease of installation.

5 Capacities Typical Pressure Drop Curve Shipping Weight and Volume Shipping dimensions and cube (approximate) with Veeder-Root printer counter. Dimension and cube shown are for domestic pack in cardboard carton. Export pack will be slightly smaller. WEIGHT- Approximate -With LOB Printing Counter

6 Figure 2.1, Table 2.1 Dimensions (For Certified Dimension prints, Consult Factory)

7 Section 2 Installation 2.1 General This section contains the procedures for receipt and installation of the meter. Specific instructions are provided for accessory equipment. 2.2 Receipt of Equipment When the equipment is received, the outside of the packing case should be checked for any damage incurred during shipment. If the packing case is damaged, the local carrier should be notified at once regarding his liability. A report should be submitted to the Product Service Department, Brodie Meter Co., LLC Division, Statesboro, Georgia Remove the envelope containing the packing list. Carefully remove the equipment from the packing case. Make sure spare, or replacement parts are not discarded with the packing material. Inspect for damaged or missing parts. In many cases the accessory items that form the "Stack-up" of the meter have been shipped as a complete unit where possible. If not, it will be broken apart into as few assemblies as is practical. Refer to the Packing List for information as to what is supplied for your particular meter. In the event that any items are missing from your shipment, contact your local Brodie Representative or Sales Office and provide them with the Brodie Sales Order Number. 2.3 Return Shipment To be able to process returned goods quickly and efficiently, it is IMPORTANT that you provide essential information. Do no return any assembly or part without an "R. M. R." (Returned Materials Report) or a letter which describes the problem, corrective action (if any) and the work that is to be performed at the factory. "R.M.R." forms can be obtained from Brodie District Sales Offices or the Service Department, Brodie Meter Co., LLC, Highway 301 North, Statesboro, Georgia Place a copy of either of the above inside the shipping container and attach it physically to the material being returnee. A copy of your packing list should be placed inside the container. Failure to follow the above procedure could result in considerable delay because items have not been properly identified. 2.4 Recommended Procedures Prior to installation of the meter, the following items of general information and recommendations should be considered:

8 1. On new installations, the lines should be flushed thoroughly to rid the pipe of welding bead, pipe sca7. etc. before the meter is placed in service. This can be done by using a spool-piece in place of the meter. 2. It is recommended that the meter be mounted in a position that will allow sufficient clearance for removal of the strainer screen and the float assembly, from the air eliminator/strainer. 3. Install a strainer ahead of the inlet of the meter. 4. The meter should be level for proper and specified of operation. The rotors in the measuring element must be in horizontal position. 5. Shut-off or control valves should be located downstream, of the meter. 6. Installation should be in accord with the proper local standards and regulations, such as API standards 1101 and NBS Handbook H Block valves should be located upstream and down stream of the meter.

9 Section 3 Operation Caution: Do Not Operate This Meter In Excess Of Values Listed In Section 1.6, Specifications. 3.1 General 1. When the meter is first put into operation, or at any time the meter has been drained, it should be started slowly until all air has been exhausted from the outer housing. 2. To prevent high shock pressure or surges, care should be exercised in opening or closing valves when starting or stopping flow through the meter. 3. On new installations, the lines should be flushed thoroughly to rid the pipe of welding bead, pipe scale, etc. before the meter is placed in service. This can be done by using a spool-piece in place of the meter. Note: Failure To Perform The Above Procedures Could Result In Serious Damage To The Meter. Water should NEVER be used as a flushing medium through this meter. Always use a flushing medium that is compatible with the metallurgy of the meter and its internal parts, and similar to the product for which this meter was intended. See Materials of Construction, Section 1.6. Failure to comply with these proper operational procedures will void the warranty. 3.2 Operation - Meter Register and Printer Caution: Do Not Turn Printer/Reset Handle Counter Clockwise. Do not start delivery unless shutter is in full open position. If numerals on indicating wheels are not in full view, resetting operation has not been completed, in which case, turn reset knob until shutter disappears and reset knob returns to its normal position. 1. Lift ticket slot cover and insert ticket as far as it will go, FACE DOWN AND BOTTOM END FIRST. If ticket does not enter tray, turn crank one complete revolution, or until it reaches positive stop. This will lift sealing pin and permit insertion of ticket. 2. When ticket is in place, make one complete turn in a clockwise direction until positive stop is reached, leaving handle in down position. Mechanism is now set for delivery. 3. After completing delivery, turn crank one complete revolution in clockwise direction until positive stop is reached, release handle and withdraw ticket. Important: All Turns Must Be Full To Internal Stop. Keep Crank In Straight Down Position At Finish. Keep Ticket Slot Cover Closed When Not In Use. This Will Prevent Excessive Dirt From Entering The Printer Mechanism.

10 Section 4 Maintenance 4.1 General The amount of maintenance necessary for efficient meter performance depends upon such factors as 1. Continuity of Operation - A meter which operates almost continuously, obviously will require more attention than one on intermittent duty. 2. Rate of Flow - The practical life of any piece of equipment is proportional to its speed of operation. A meter operating at, or close to its maximum rating will naturally have a shorter life than operating at a reduced rate. 3. Cleanliness of Product - Abrasive solid matter accelerates meter wear. Meters that are given even a little attention regularly will deliver better performance and have a longer life than those that are given no attention until they have failed. Frequently a meter's performance will depend, to a considerable extent upon the proper functioning of the accessory equipment in the piping system. Following are listed some of the conditions and factors influencing meter performance. A meter should be kept filled with the liquid it is measuring. Draining results in the formation of deposits and gums which increase the mechanical friction. Any leaky shut-off valves or check valves which would permit the meter to drain should be repaired or replaced. The meter should be kept free of water. Usually, regular inspection and draining of storage tanks is sufficient protection. A regular procedure should be set up to clean the strainer basket to prevent it from filling and rupturing the screen. The valves and operating mechanism of an air eliminator should be given occasional inspection. The counter of a meter should be given some protection during extreme weather conditions. A meter taken out of service for any length of time should,: be protected and sealed against entry of foreign material:: and corrosion. Caution: Before Performing Any Disassembly Or Reassembly Procedures All Flow To Meter Should Be Off. All Electrical Connections To Accessories Should Be Disconnected. Service Should Be Performed By Trained And Qualified Personnel Only. 4.2 General Disassembly Procedure Components of this meter and sub-assemblies are relatively small. Therefore, it is suggested that a clean, neat work area be selected before attempting any service to avoid loss and/or damage of parts.

11 It is recommended that the entire assembly, including the meter, strainer/air eliminator, and valve be removed from the tank truck before attempting to service the meter itself. Note: The Meter Body Must Be Disconnected From The Mounting Platform If Maintenance Is Required Only On The Measuring Unit Assembly. Before attempting to disassemble or remove the assembly, close block valves on inlet and outlet of meter. Caution: Bleed Off The Remaining Pressure In The Meter Slowly But Completely By Slightly Loosening All Pipe Fittings. All Pressure Must Be Bled Off Before Attempting To Complete Disconnections In Order To Prevent Personal Injury. Loosen the pipe unions on the inlet and outlet of meter, and remove the screws holding the meter base to tank truck to remove the entire assembly. 4.3 General Reassembly Procedure A. Cleaning Prior to reassembly, all parts should be thoroughly washed in solvent, light fuel oil or kerosene to remove any contamination, and dried with compressed air and/or clean, lint-free wipers. B. 0-rings Prior to reassembly, carefully inspect all 0-rings for cuts, nicks, or deformation. Use new 0-rings for replacement as necessary. Lubricate all 0-rings sparingly with light oil to aid in holding 0-rings in place and to provide lubrication for O-rings during reassembly. Good practice is to always replace 0-rings with new ones during reassembly. C. Bearings Inspect bearing for cleanliness and looseness. Excessive wear dictates the need for bearing replacement. If old bearings are reused for reassembly, they should be lubricated sparingly with light oil before replacing in meter. 4.4 Meter Measuring Unit A. Removal/Disassembly Reference to Figures 4.1, 6.1, and Separate Input end case (Item 1) and output end case (Item 10) by removing the four socket head cap screws (Item 2). Remove 0-ring (Item 5) and put in a safe place to avoid cutting or nicking 2. Remove Measuring Unit (Item 4) and block rotors (Items 46 or 37) by inserting a plastic rod through opening in the end plate as illustrated in Figure 4-1. Caution: Extreme Care Must Be Exercised When The Measuring Element Is Exposed Or Handled. Hands Must Be Kept Clear Of The Timing Gears, Rotors

12 And Measuring Chamber Or Serious Personal Injuries Can Occur. Due To The Precision Balance Of The Rotors And Timing Gears, They Can Be Set In Motion Easily. Keep Hands Clear Of These Parts At All Times. At No Time Should The Hands Be Used To Brace These Parts While Servicing. 3. Remove locknuts (Item 52) from each rotor shaft. 4. Remove timing gears, small gear (Item 53) on 3-tooth rotor and large gear (Item 49) on 4-tooth rotor by tapping the gears lightly on the flat face with a plastic or rubber mallet. Remove spacer (Item 54), Caution: Avoid Hitting The Teeth Of The Gears. The Center H. Of Each Timing Tear Is A Tapered Bore Which Fits The Tapered End Of The Rotor Shafts. Tapping The Gears Will Break The "Taper Lock" And Release The Gears From The Rotor Shafts. 5. Remove three socket head screws (Item 55) holding the rear end plate (Item 38), but do not remove end plate at this time. 6. Remove worm (item 40) by removing screw (item 41) and lock washer (item 42). To disassemble worm shaft (item 45), remove roll pin (item 43). 7. Remove screw (item 58), washer (item 42), shim (items 44 and/or 48) and spacer (item 50). 8. Remove three socket head screw (item 55) holding the front end plate (item 38). NOTE: Lightly Tap, With A Plastic Mallet, The End Of The Two Rotor Shafts To Loosen The End Plate. Mark The End Plate As To Which End Of The Body It Is Disassemble. Both End Plates Are Identical Except For The Dowel Holes. 9. Remove the end plate (item 38), lift out rotors (items 37 and 46) from the meter body (item 47). 10. To remove rear end plate (item 38), tap from inside of meter body with wooden handle of mallet. NOTE: Dowel Pins (Item 56), Two On Each End Of Meter Body Should Remain In Meter Body When The Front And Rear End Plates Are Removed. Occasionally, The Dowel Pins Will Come Off In End Plates. This Is Acceptable As Long As Dowel Pins Are Retained For End Plate Location Upon Reassembly. Mark The End Plate As To Which End Of The Body It Is Disassemble. 11. Ball bearings (item 39) can be removed from the end plates (item 38) by gently tapping or pressing on the inner raceway of the bearings from inside covers. B. Cleaning Removing all corrosion and accumulation from the rotors, meter body, and end plates.

13 CAUTION: Extreme Care Must Be Taken When Cleaning To Insure That Rotors And Meter Body Parts Are Not Altered Or Damaged In Any Way. If The Rotors Or Meter Body Are Scored Or Galled, Remove The High Spots With A File Or Scraper. Crocus Cloth May Be Used For Polishing. Wash All Parts Thoroughly In Solvent, Light Fuel Oil, Or Kerosene. C. Reassembly/Installation Reference Figure 6.1 and 6.2 NOTE: Two Blocks Of Wood About 2" By 2" Or The Equivalent Will Greatly Assist Assembly Procedure As Illustrated In Figure 4-1. Figure 4-1 Proper Method For Blocking Rotors For Measuring Unit Disassembly 1. Align the port openings of the front end plate (item 47) using care to align the two locating dowel pins (item 56) with their corresponding holes. Secure the front end plate to meter body by tapping it down with a soft mallet, alternating from one side to the other, and installing the three socket head screws (item 55). CAUTION: Do Not Drop Or Damage Rotors. 2. Install the two rotors (items 37 and 46) so that the threaded, tapered rotor shafts protrude from the front end of the meter body. 3. Attach the rear end plate (item 38) to the meter body (item 47) using care to align the two locating dowel pins (item 56) with their corresponding holes. Secure the rear end plate alternate tapping method and installing the three socket head screws (item 55). 4. Install bearings (item 39) over end of rotor shafts into bearing bore provided in front and rear end plates. Use a sleeve or deep socket with an outside diameter slightly less than that of the bearing outer race to press or tap the bearings into bearing bores until securely seated. Use care to drive bearing straight down and make certain that no foreign materials enter the bearing. 5. Secure bearings in place by installing spacer (item 50), shims (item 44 and/or 48), washer (item 42) and screw (item 58). NOTE: Use Shims (Item 44 And/Or 48) Until A.005 Clearance Is Achieved Between End Plate And 4 Tooth Rotor. 6. Install worm shaft (item 45) on the 3 tooth rotor and secure with roll pin (item 43). 7. Install shims (item 44 and/or 48), worm (item 40), washer (item 42) and screw (item 41). NOTE: Use Shims (Item 44 And/Or 48) Until A.005 Clearance Is Achieved Between End Plate And 3 Tooth Rotor.

14 8. Place spacers (item 54) on the threaded shaft of each rotor (item 37 and 46). 9. Loosen the (3) screws on the large timing gear assembly (item 49) and slide the gear hub plate. Tighten screws and place the large timing gear assembly (item 49) on the threaded shaft of the four tooth rotor (item 46). Figure 4-2 Proper Method for Timing Place the small timing gear (item 53) on the threaded shaft of the three tooth rotor (item 37). NOTE: If New Set Screws (Item 51) Has To Be Replaced, Install From The Back Side Of Each Timing Gear. The Set Screws Must Align With The Holes In The Spacers (Item 54). 10. Attach locknuts (item 52) to the threaded rotor shafts and tighten. 11. Tighten set screws (item 51) in each timing gear alternating from one side to the other on each gear until the gears spin freely. 12. Timing Rotors - With feeler gauges (begin with size.003 or.004) carefully centralize the lobe of the three-lobe rotor in a flute of the four-flute rotor. This may be done through the openings in the measuring element. The rotors must turn freely and must not contact each other.

15 Figure 4.3 Proper Method for Setting Rotor End Clearance To properly time rotors, using the feeler gauges inserted between rotors, tighten locknut (item 52). Check clearance at several points between rotors. Remove gauge and spin rotors. If there is contact between rotors or rotors do not turn freely recheck clearances at several points and if necessary repeat timing procedure until desired freeness is obtained. 13. Install measuring unit (item 4) (Figure 6-1) into the output end case (item 10). NOTE: Dowel In The Measuring Unit Must Align With The Hole In The Top Of The Output End Case (Item 10). The Meter Will Run Backward If Measuring Unit Aligned With Wrong Hole. 14. Install 0-Ring (Item 5) in groove on the output end case (item 10). Place input end case (item 1) in position on output end case (item 10). Secure together by installing screw (item 2), and washers (item 3). 15. Install O-Ring (Item 9) in groove on top side of the meter. 16. Install Counter Base Plate Assembly (item 7), secure with screws (item 6). NOTE: The Gear On The Counter Base Plate Assembly (Item 7) Must Mate With The Worm Wheel (Item 40) On The Measuring Unit. 4.5 Automatic Temperature Compensator (ATC) - Model BA-33T A. Principle of Operation Refer to Figure 4.4. The temperature compensator is made up of thermal product bellows, linkage plate assembly, ATC control gear train, and 600 lockout incorporated into the linkage plate assembly by means of a movable pivot pin. The bellows is mounted in the front cover of the meter, immersed in liquid being metered. Product temperature variations cause linear expansion and contraction of the bellows with respect to product temperature. Bellows expansion and contraction is transferred to the ATI' gear train by means of linkage lever (4) and push rods (3 & 5) to change the position of the friction roller (6) on the platform gear (7), providing compensated readout on the meter counter.

16 The compound input gear (8), through the compound idler gear (9), drives the planet arm assembly (10) and the hardened, polished steel platform gear (7). The platform gear drives the worm gear (14) through the friction roller. The worm gear drives the worm wheel and spur gear assembly (13) which, in turn, drives the external teeth of the planetary ring gear (17) through an idler gear (15). The internal teeth of the ring gear drive four planetary gears which transmit compensated output to the register drive gearing. The infinitely variable transmission of the friction drive acts as a counter-directional force subtracting from the ATC output rather than adding to the output or driving the planetary system. Thus the compensating mechanism is not required to carry any of the torque load of the counter equipment and is not subject to slippage under heavy loads. The speed of the friction roller is determined by its position on the platform gear and its speed varies, as does the speed of the ATC output. The position of the roller on the platform gear is controlled by the product bellows movement as it expands or contracts due to product temperature change. For normal ATC operation, with register readout compensated for product temperature variations, the movable pivot pin is located in position (B). The temperature compensator can be "locked out" (made inoperative) by placing the movable pivot pin in position (A). Output from the automatic temperature compensator then becomes gross uncompensated indication. B. Removal (Reference Figure 6.1) Remove ATC adjustment cover (item 29) by removing two screws (Item 31). Remove linkage plate assembly (item 27) by removing three screws (item 30). Remove bellows shaft (item 32) by withdrawing it from the bellows cover (item 33). Remove adjustment shaft (item 26) by withdrawing it from the counter base plate assembly housing (item 76). Please note rounded ends of bellows shaft and protruding flat end of adjustment shaft for purposes of reassembly. Remove bellows cover (item 33) by removing 3 socket head screws (item 28), and withdraw bellows (item 35). Use caution not to dent bellows. Remove O-Ring (item 34) and put in safe place.

17 Remove the two machine screws (item 20), and the two hex head screws (item 19) with lock washers (item 18). Lift the ATC Rear assembly (item 21) from the counter base plate assembly (item 16). Please note that the ATC gear assembly is held in position on counter base plate assembly by locating dowel pins (item 36). Coupling (item 17) can now be lifted off of drive shaft. C. Maintenance (Reference Figure 6.1) In normal use, no service is required other than periodic lubrication. If the gear assembly of the ATC (item 21) is found to be damaged, worn, or otherwise unserviceable, an exchange replacement assembly should be ordered from the nearest Brodie Regional Office. D. Lubrication (Reference Figures 6.1 and 6.7) No lubrication is required on the linkage plate assembly (item 27), the bellows shaft (item 32), or the adjustment shaft (item 26). In order to achieve maximum service life, the ATC gear assembly (item 21) should be removed and lightly lubricated at approximately six month intervals. Lubricants required are given in Table 4-1, and points of lubrication are shown on Figure 6-7. Lubrication should be done thoroughly but sparingly. Do not use excessive quantities of lubricant. E. Installation (Reference Figure 6.1) Place coupling (item 17) in position on packing shaft (item 61) in counter base plate (item 16). Place ATC gear assembly (item 21) in position on top of the counter base using care to assure that coupling (item 17) is properly aligned with input shaft on bottom of ATC gear assembly. When input shaft and coupling are properly engaged, the ATC gear assembly will be seated correctly inside the counter base plate housing. This engagement may be verified by temporarily operating the meter and checking for corresponding ATC output. NOTE: Dowel pins (item 36) in the top of the counter base must align with the location holes on bottom of the ATC gear assembly. Secure the ATC Rear assembly (item 21) by replacing two machine screws (item 20) and two hex-head screws (item 19) with lock washers (item 18). Install 0-Ring (item 34) in outer part of bellows opening in output end case (item 10). Make certain bellows (item 35) is not dented or otherwise damaged, and reinstall into front end cover bellows bore. Replace bellows cover (item 33) and secure by installing three socket head screws (item 28).

18 Replace bellows shaft (item 32) by inserting into hole in bellows cover. Replace ATC adjustment shaft (item 26) by inserting into bushing in the front of the counter base plate, with square end out. Replace linkage plate assembly (item 27) and secure with three screws (item 30). F. Butane Service (Reference Figure 4.4) The fixed pivot point for the linkage lever has been set (at the Factory) at the "P" or "B" position on the linkage plate, indicating propane or butane service respectively. If the product metered is changed from propane to butane (or vice versa), then the pivot point must be changed accordingly. To change the pivot point, simply remove the roll pin that attaches the linkage lever to the linkage plate, and install it in the desired position for either propane or butane service. Changing the metered product and fixed pivot point necessitates recalibration of the ATC. G. ATC Calibration Procedure (Ref. Figure 6.1 and 6.7) NOTE: Accuracy adjustments, for the model BA-33T meter, are inherent to and accomplished within the calibration procedure for the Automatic Temperature Compensator, eliminating the need for a separate accuracy Adjuster subassembly (such as the 4200 Adjuster used on the model BA-33 meter). The ATC is designed for use with propane or butane at a product temperature between - 10OF (-23oC) and +130oF (+54oC). The unit is calibrated for a base compensation temperature of 60OF (15oC) and sealed with seal wire and lead seal before shipping. If recalibration becomes necessary, a volumetric prover must be used in accordance with proper regulation, such as API Standard NOTE: Calibration procedure warrants breakage of the ATC seal. Proper measurement and regulatory officials must be notified prior to seal breakage, and upon installation of new seal after calibration is completed.

19 To calibrate the ATC, first remove the two screws (item 31) so that the adjustment cover (item 29) may be removed. Note the location of the instruction decal inside the adjustment cover (See Figure 4-5). Referring to Figure 4-4, remove the pivot pin from the ATC operation position (B) on the linkage lever (4), and place it in the 60oF lockout position (A). Running a specific volume through the meter, at a product temperature of 60oF, should result in a meter register readout equal to the quantity of liquid indicated by the volumetric prover. Inserting a thermometer in the thermometer well (located in the blind flange of the strainer/vapor release assembly) provides a means of monitoring product temperature. Proper temperature correction factors must be incorporated for product temperatures other than 60oF. If there is a discrepancy between meter readout and prover readout, adjustment is necessary. Compensation for the present discrepancy can be accomplished by turning the 60OF adjustment screw. Each adjustment division equals Turning the screw in a clockwise direction will decrease counter readout, while counter-clockwise adjustments increase counter readout. Several prover test r8ns are warranted to verify the proper adjustment for the 60 F lockout position. Replace the pivot pin to the ATC operation position (B), on the linkage lever. Run a small amount of volume through the meter (approximately 30 U.S. gallons), to allow the ATC to compensate for the change in pivot pin position, before continuing with ATC calibration procedure. Running a specific volume through the meter at a product temperature within the operating range of the ATC should now result in a meter register readout corrected to the 60OF volume. If there is a discrepancy between actual readout and calculated readout, adjustment is necessary. Compensation for the percent discrepancy can be accomplished by turning the ATC adjustment screw. Each adjustment division equals 0.3%. Turning the screw in a clockwise direction will decrease counter readout, while counter-clockwise adjustments increase counter readout. Several prover test runs are warranted to verify the proper adjustment for the ATC operation position. NOTE: Any attempt to service the ATC assembly or linkage plate assembly may result in serious damage and/ or personal injury. Contact Brodie Service Department for information concerning ATC exchange policy. Once the Automatic Temperature Compensator has been proper] calibrated, replace the Adjuster cover and secure with two screws. 4.6 Series 4200 Adjuster - Model BA-33 A. Removal (Reference Figure 6.1) Remove four screws (item 14) and lift off Adjuster (item 13) from top of counter base plate assembly (item 7). If the Adjuster assembly is found to be damaged, worn, or otherwise unserviceable, an exchange replacement assembly should be ordered from the nearest Brodie Regional Office.

20 B. Installation (Reference Figure 6.1) Place Adjuster (item 13) in position carefully on top of counter base plate (item 7) making certain that coupling on bottom side of Adjuster is aligned properly with packing shaft (output from counter base plate). When packing shaft and coupling are properly engaged, the Adjuster will be correctly seated on the counter base plate. This engagement may be verified by temporarily operating the meter and checking for corresponding Adjuster output. Secure Adjuster to counter base plate by installing four screws (item 14). C. Accuracy Adjustment The BA-33 meter is adjusted for accuracy by changing the gear ratio between the meter packing shaft and the counter until the counter registers the amount of liquid measured. The Adjuster accomplishes this change in positive and definite increments. The Adjuster is provided with two adjusting knobs (see Figure 4-6). One knob is used to make coarse adjustments; the other to make fine adjustments. To make an adjustment, lift locking plate and push in or pull out on adjusting knob. Pushing the knobs into the Adjuster decreases the counter readings, while pulling the knobs out will increase the readout. Each groove of the coarse adjustment equals.67, of the volume delivered, and each fine adjustment groove equals.05%. 4.7 Counter Base Plate Assembly (Reference Figures 6.1, 6.3, or 6.4) 1. Lift off coupling (item 17) from counter base plate assembly (item 7) or ATC housing (item 16). 2. Remove screw (item 6) and lift off counter base plate housing assembly (item 7) or ATC housing (item 16). 3. Remove screws (item 67) and remove counter base plate housing (item 76) from inner gland bearing (item 65).

21 4. Remove retaining rings (item 59) and disassemble, using care not to damage 0-Ring (item 64). Always replace this 0-Ring with a new one on reassembly. 5. Remove 0-Ring (item 9) from the output end case (item 10) using care not to damage 0-Ring (item 9). Always replace this O-Ring with a new one on reassembly. B. Reassembly/Installation (Reference Figures 6.1, 6.3, or 6.4) 1. Slide ball bearing (item 66) onto gear shaft (item 61). 2. Install gear shaft (item 61) and ball bearing (item 66) into inner gland bearing (item 65). 3. Place properly lubricated 0-Ring, (item 64) on gear shaft (item 61) and push into bore inside the inner gland bearing (item 65). 4. Place bushing(item 63) and washer (item 62) in position on gear shaft assembly (item 61), secure with retainer ring (item 59). 5. Attach the counter base plate housing (item 76) to the inner gland bearing (item 65) with two screws (item 67). 6. Install 0-Ring (item 9) in groove on top of the meter. 7. Position counter base plate housing assembly (item 7) or ATC housing (item 16) onto meter and secure with screws (item 6) NOTE: The gear on the worm shaft assembly (item 61) must mate with the worm wheel (item 40) on the measuring unit. 8. Replace coupling (item 17). 4-8 Vapor Release/Strainer Assembly A. Removal/Disassembly Refer to Figure 6-1. Disconnect tubing, nut (item 77) and tubing (item 78) from elbow (item 80). Refer to Figure 6-5 and Table 6-2. Remove four socket head cap screws (item 7) and lift out complete head assembly including the float link assembly (item 3) and linkage guide bracket (item 6). Remove 0-Ring (item 17) and put in safe place to avoid nicking or cutting. Float shroud (item 2) can be removed from housing (item 1), if necessary, by lifting out. Remove five socket head cap screws (item 9) to allow removal of the vapor release cap (item 10). The float link assembly (item 3) can be separated by removal of cotter pins (item 4) and spacer (item 5). Use care not to dent float. Hold the poppet (item 14) by inserting a screwdriver shaft or small piece of bar stock in cross slot in lower part of poppet. Remove jam nut (item 11), two diaphragm washers (item 12) and diaphragm (item 13). Lift out poppet. Place diaphragm in safe place.

22 The linkage guide bracket (item 6) can be removed as necessary by taking out four screws (item 16). Remove 0-Ring (item 15) and put in a safe place to avoid nicking or cutting. The float (item 23) can be disassembled from the float link assembly (item 3) by removing cotter pin (item 24). To remove strainer (item 20) from housing, loosen and remove four socket head cap screws (item 7) to release blind flange (item 18). Insert fingers into inside of strainer and pull out. Remove 0-Ring (item 22) and put in safe place to avoid cutting or nicking. B. Reassembly/Installation Refer to Figure 6.5 and Table 6.2. Carefully inspect the diaphragm (item 13) for cracking, peeling or flaking. Use new diaphragm for replacement if necessary. Inspect the poppet (item 14) for excessive wear on the three guide ribs that fit in the vapor release valve body and for wear of the pilot ball seat on bottom of poppet. Use new poppet for replacement if necessary. Inspect all pivots of linkage for signs of excessive wear. Use new linkage parts and assemblies as necessary for replacement. Carefully inspect the strainer (item 20) inner screen for ruptures or signs of stretching of the mesh. If the inner screen is ruptured or stretched, the strainer assembly should be replaced. Insert strainer (item 20) into housing and replace O-Ring (item 22). Replace blind flange (item 18) and reinstall and tighten four socket head cap screw (item 7). Refer to Figure 6.5 and Table 6.2. If the linkage guide bracket (item 6) and 0-Ring (item 15) have been removed, replace item 6 and 15, and retain by reinstalling four screws (item 16). Insert poppet (item 14) into place in the vapor release valve body (item 8). Install one diaphragm washer (item 12) over threaded end of poppet. Install diaphragm (item 13) over threaded end of poppet. Install second diaphragm washer (item 12) over the threaded end of poppet on top of diaphragm. Hold the poppet by means of a screwdriver shaft or a piece of bar stock in the cross slot in lower end of poppet. Install and tighten jam nut (item 11) on threaded end of poppet. Refer to Figure 6.5 and Table 6.2. If the float (item 23) has been removed, replace float on the float link assembly and retain with cotter pin (item 24). Replace float link assembly (item 3) including float, on the linkage guide bracket (item 6) by use of cotter pins (item 4) and spacer (item 5). Refer to detail A of Figure 6.5 for illustration of correct reassembly. Replace vapor release cap (item 10) using five socket head cap screws (item 9) (Refer to Figure 6.7). Use caution to assure that holes in diaphragm (item 13) are properly aligned before installing cap screw (item 9). The poppet should be lifted up until it seats to allow socket head screws (item 9) to be easily inserted through the diaphragm.

23 If the float shroud (item 2) has been removed, reinstall the shroud in the housing (item 1). The float link assembly (item 3) must move freely without binding or dragging of linkage following reassembly. Lift float to seat the pilot ball and the poppet (item 14). Apply approximately 15 PSI air pressure to the vapor release opening in top of head. Proper seating of the poppet and pilot ball will be indicated by no flow of air. Release float - air flow should be evident. Repeat several times, lifting float to seat ball and poppet and releasing to assure the seating is reliable and consistent. Reinstall 0-Ring (item 17) in top of housing (item 1). Reinstall the float, float linkage, and head assembly into opening on top of housing and retain with four socket head cap screws (item 7) (Refer to Figure 6.5). Reconnect tubing (item 78) and tubing nut (item 77) to elbow (item 80), as illustrated in Figure Differential Pressure Control Valve A. Removal/Disassembly Refer to Figure 6.1. Disconnect tubing nut (item 77) and tubing (item 78) from connector (item 79) located on valve body. Remove the complete valve assembly from the front end cover by removing four nuts (item 73) and 0-Ring (item 74). Refer to Figure 6-6. Place valve assembly with 1 '1" NPT threaded end down on arbor press. Remove bushing (item 11,. Place sleeve slightly smaller in diameter than the inside diameter of the retaining ring (item 10) on face of retainer (item 9). Press with arbor press sufficiently hard enough to allow easy removal of the retainer (item 9). Use small screwdriver or scribe to push end of retainer out of groove in body and "peel out" retainer. Slowly release pressure from arbor press until all tension created by springs (item 3 and 6) is released. CAUTION: Piston may be held in valve body by 0-Ring so that spring tension is not fully released. Exercise care in making certain all spring tension is released in order to prevent personal injury. Remove retainer (item 9), 0-Ring (item 8), check valve (item 7), spring (item 6), piston (item 5) with O-Ring (item 4), and spring (item 3).

24 B. Reassembly/Installation With valve body positioned on arbor press, in the same position as used in disassembly, insert spring (item 3) into the valve body. Install properly lubricated O-Ring (item 4) in the 0-Ring groove of piston (item 5) and place piston down over spring (item 3). Insert spring (item 6) into hole in nose of piston, insert check valve (item 7) down over spring (item 6). Place O-Ring (item 8) around rear shoulder of retainer (item 9), and place retainer over face of check valve with 0-Ring down. Using pressing sleeve on the face of the check valve lightly compress springs by hand while positioning under arbor press. Retainer should be around pressing sleeve and loose at this time. When well centered, press piston (item 5), check valve (item 7), and retainer (item 9) down into bore of valve body with the arbor press. Use care to press in straight and carefully so as not to cut the position 0-Ring (item 4). When sufficiently compressed the retainer groove in the valve body will just show. Insert lower end of retainer into groove and complete insertion by working the rest of the retainer into the groove in a spiral direction. Make certain that the full length of the retainer including the outside end is in the groove - seated - before releasing pressure from the arbor press. Install 0-Ring (item 8) into groove on flanged end of valve body. Refer to Figure 6.1. Remove complete valve (item 70) with front end cover and secure with four nuts (item 73) (Refer to Table 6.1). Reconnect tubing (item 78) by positioning and tightening the tubing nut (item 77) on connection (item 79) on side of valve body.

25 Section 5 TROUBLESHOOTING 5-1 General Table 5.1 has been provided to aid in basic troubleshooting. Disassembly procedures are covered in Section 4 Maintenance. If trouble occurs, determine the probable cause in an effort to pinpoint the source of the trouble, i.e., if a counter does not register at all, first make certain that there is flow through the meter. If the flow meter is found to be in need of repair, it is recommended the user contact the nearest Brodie service or sales office. It is important that servicing be performed by trained and qualified service personnel. Table 5.1 Troubleshooting Symptom Possible Cause Solution Meter Runs But Counter Does Not Register Meter Runs But Is Noisy Meter Runs But Only Very Slowly; Not Noisy; Low Delivery Rate Meter Will Not Run Erratic Counter Broken Coupling Between Counter Base And ATC Ear Assembly Faulty ATC Gear Assembly Fault Counter Meter Is Not Properly Timed Damaged Rotors Worn Bearings Strainer Screen Clogged Float In Vapor Release Collapsed Bind In Vapor Release Linkage Improper Poppet Seating ATC Non-Functioning Replace Coupling Refer To "Brodie Exchange Policy" For Adjuster Service Replace Counter Retime Meter Service Or Replace Rotors Replace Ball Bearings Remove And Clean Strainer Screen Replace Float Disassembly To Service. Replace Parts As Necessary Replace Poppet And/Or 0-Ring Refer To "Brodie Exchange Policy" For Adjuster Service

26 Section 6 Parts List 6.1 General This section contains the necessary parts required to make up any standard unit that is covered in this bulletin. 6.2 Recommended Spare Parts Each parts list also contains the recommended spare and replacement parts denoted by an asterisk. For items that are not listed, or additional information, consult factory.

27 Table 6.1 Parts List - Meter Assembly (Reference Figures 6.1 & 6.2) ITEM DESCRIPTION BA-33 BA-33 BA-33N BA-33T REQ HTT-3250F Complete Meter Assembly Input End Case Screw Lock washer Measuring Unit Assembly *5 0-Ring Screw Counter Base Plate *9 0-Ring Output End Case Drive Screw Name Plate *13 Adjuster Screw ATC Housing *17 Coupling Lock washer Screw Screw ATC Assembly Decal Stud Thermowell

28 *25 0-Ring Adjustment Shaft Linkage Plate Assembly Screw Adjustment Cover Screw Screw Bellows Shaft Bellows Cover *34 0-Ring Bellows Assembly Dowel Pin *37 3 Tooth Rotor End Plate *39 Ball Bearing Worm Wheel Screw Lock washer Roll Pin Shim A/R 45 Worm Shaft *46 4 Tooth Rotor Body Shim A/R *49 Drive Gear Assembly (4T) Spacer Set Screw Locknut - Flexlock Drive Gear (3T) Positioning Spacer Screw Dowel Pin Dowel Pin Screw Retaining Ring Worm Gear Shaft Assembly Shim Shaft Bushing *64 0-Ring Inner Gland Bearing *66 Ball Bearing Screw Bushing Felt Filler Differential Valve Meter Assembly Strainer/Vapor Release Assy Nut *74 0-Ring Counter Base Plate Housing Tube Nut Tubing 3/ Connector Elbow Stud *Indicates Recommended Spare Parts

29 Table 6.2 Vapor Release/Strainer Assembly - Part List item Description Part Number Qty. Req'd. Item Description Part Number Sty. Req'd. 1 Vapor Release Housing *13 Vapor Release Diaphragm Float Shroud Poppet Float Link Assembly *15 O-Ring Cotter Pin x 5/16 Fillister Head Spacer Screw 6 Linkage Guide Bracket *17 O-Ring /16-14 x 1-1/4 Socket 18 Flange Head Cap Screw Flange 1 1/2" NPT Vapor Release Valve Body Strainer Assembly /16-24 x 1 Socket Head Plug Cap Screw '22 O-Ring Vapor Release Cap Float Jam nut Cotter Pin '12 Diaphragm Washer Pipe Plug Recommended Spare Parts.

30 Figure 6.6 Differential Pressure Control Valve - Exploded View Table 6.3 Differential Pressure Control Valve Parts List (Part No ) * Recommended Spare Parts. Item Description Part Number Qty. 1 Pipe Plug Valve Body Piston Spring *4 O-Ring Piston Check Valve Spring Check Valve * 8 O-Ring Differential Valve Retainer Retaining Ring Pipe Bushing

31 Figure 6.7 Automatic Temperature Compensator - Cross Section Parts Table 6.4 Automatic Temperature Compensator - Parts List Item Description Part Qty. Item Description Part Qty. Number Req'd. Number 1 Slide Assembly Ball Bearing Shoulder Screw Planetary Gear Assembly Compound Gear Assembly Slinger Shim O-Ring Retaining Ring Cover Assembly Idler Shaft Assembly Washer Worm Shaft Assembly Spring Coupling Bearing Retainer Cotter Pin Platform Gear Assembly Ball Bearing Thrust Bearing Race Shim As Req. 30 Hearing Shim As Req. 31 (Not Used) 13 (Not Used) 32 Nut Output Gear Assembly (Not Used) 15 Guide Bushing Roller Shaft Assembly Base Assembly Pillar Input Shaft Assembly Spring Dowel Pin Washer input Gear Assembly Lock washer