剪切泵說明書

1、剪切泵Shear Pump安裝使用說明書Diections For Installation AndOperati on西部石油裝備Chen gdu Weast Petroleum Equipme nt Co.,LTD目錄1. 作用 12. 原理 13. 型號說明34. 性能表 35. 結構圖 56. 安裝、使用、維護指南 76.1引言76.2 強調說明 76.3 安裝86.4使用116.5維護 12DERECTORY1. Introduction152. Principleofoperati on 153. Explanation of model 174. Performanee tabl

2、e 175. Structuraldrawing 186. Guidle toinstallation,operationandmaintenance 206.1 Foreword206.2 Emphases 206.3 In stallatio n 206.4 Operati on 246.5 Maintenance 25WJQ5 6 J-10 剪切泵使用說明書1. 作用WJQ5 6 J-10 剪切泵是一種專門用于剪切聚合物和粘土 并已被現場使用和理論證實有效的機械。在鉆井液系統中，聚合物（或粘土）應提前充分地剪切以后， 再進入鉆井液系統，才能充分發(fā)揮其效用，改善鉆井液性能，如 果沒有充分剪

3、切，聚合物在第一次循環(huán)中就可能堵塞振動篩網， 損失大量的聚合物，增加鉆井成本，并且還可能使鉆井液中的大 尺寸的固相顆粒變硬而難以除掉；在完井液中，由于沒有充分剪 切，聚合物會產生許多“魚眼”。這些“魚眼”會傷害地層，使地 層滲透率降低，油氣層減產。經過事實證明WJQ5 6 J-10剪切泵具有優(yōu)良的性能，它能為高分子聚合物（也能為粘土）迅 速水合提供高度的剪切，解決聚合物（或粘土）在鉆井液中或完 井液中因水合不好而存在的突出問題。同時，使用 WJQ5 6 J-10 剪切泵能使聚合物用量減少15%以上,膨潤土 用量減少30%以上，并且改善了泥餅和液流損失，降低鉆井液剪 切比速率，提高凝膠強度，達到

4、了國外同類產品的先進水平，其 軸封結構更可靠，使用維護更方便。2. 原理WJQ5 6 JC-10剪切泵密封采用了非常可靠的機械密 封，保證無泄漏。泵部配有一個300mm不銹鋼渦輪（其上有導 葉、葉輪、44個噴嘴、4個收集室），及一個剪切板，能夠產 生超過25.4m/s的小端剪切（液體剪切），當液流通過剪切泵 時，有一半（50%的液體在渦輪收集室的強力推進下將被剪 切兩次。該渦輪剪切泵安裝在一專用底座上，并用皮帶輪、窄V帶和55KW/75kw防爆電動機驅動，與剪切泵配套使用的還有 一個尺寸適合的ZHP150混合漏斗，這樣組成了一個完善的剪 切及水合作用系統。由于該泵軸封的改進，使其壽命大大提高。

5、如遵循該泵安裝及特殊條件應用的規(guī)則，將進一步提高其 性能。本公司將對在油田及工業(yè)應用中有利于提高該泵性能的一 般及特殊建議進行處理。注意：該泵不能用于活性泥漿系統，因為系統中的鉆井固 體及重晶石，它們在受到剪切時將很快損壞該泵。原理如圖一：T 7圖一 WJQ5 6 JC-10 剪切泵原理圖聚合物流體從V流道進入，并以平行與剪切板 P的方向抽 送，收集室液流量的50%通過44個噴嘴N射出，并以高速沖 擊剪切板P,然后在M處90方向進入泵的蝸殼收集室?？偭?V及射流N沿著剪切板流動到達剪切盤的尖端 T,在尖端有許 多牙齒，高速旋轉的牙齒使聚合物（或粘土）再一次被剪切。這樣就完成了聚合物(或粘土)高

6、度剪切而迅速水合。3. 型號說明WJQ56 J-10渦輪名義直徑(英寸)密封形式泵進口直徑(英寸)泵出口直徑(英寸)渦輪剪切泵4. 性能表(表1)型號流量(m3/h )揚程(m)轉速(r/mi n )效率(%)汽蝕余 量(m)功率(kw)軸功率配套功 率WJQ5 6J-101553222802834655WJQ5 6J-101553222802834675.Li6D9 f7：F-U_ -6D56WJQ5 x 6J-10剪切泵零件明細表(表2)序號數量零部件名稱序號數量零部件明稱11泵殼274螺母21葉輪組件284墊圈31剪切板291壓板組件41加強板301O型密封圈55X 3.151護板311

7、填料61填料箱321銷71右端蓋331軸套82油封 63.5 x 88.8 x 12341機械密圭寸92軸承2313(GB/T281-94)351加強套101油孔蓋361蓋型螺母111泵座371方螺母121軸承座381墊圈131O型密封圈140X 3.1391前護板142軸承 7311ACM/DB(GB/T292-94)151O型密封圈125X 3.1161油杯 GB1152-89172圓螺母GB812-88182鎖緊墊圈GB858-88191左端蓋201油封 47.6 X 69.9 X 10211軸221油標A12231絲堵ZG1/2241擋泥環(huán)251堵頭ZG3/4264調節(jié)螺栓6. WJQ

8、5 x 6J-10剪切泵安裝、使用、維護指南6.1引言本指南僅就WJQ5 x 6J-10剪切泵的安裝、使用、維護 中的一般性問題作了介紹，供參考，本指南不能解決的問題， 請與本公司售后服務部門聯系，將會及時地給你答復。6.2強調說明該泵只能在設計圍使用。622該泵主密封是機械密封，填料密封為輔密封，當機封失 效后，方可壓緊填料密封，否則造成密封不必要損壞。該泵空轉不能超過5秒,必須注滿液體泥漿方可運轉， 否則會造成機封損壞。6.3安裝“1)Si剪切泵系統由剪切泵、混合漏斗、管線及聚合物（或粘土） 水合罐組成。為便于安裝和運輸，聚合物（或粘土）水合罐由 井場泥漿罐的一個隔倉組成。圖五WJQ5 6

9、 J-10剪切泵外形圖法蘭尺寸（單位：inch）表泵法蘭盤DNDdb(mmn-d出口法蘭51081/2268-7/8進口法蘭6113/891/2268-7/8注：DN法蘭通徑，D法蘭外徑，d連接螺紋孔中心距，b法蘭厚 度，n-d連接螺栓孔數及孔徑。（表4）序號數量零部件名稱序號數量零部件名稱11底座116銷軸21剪切泵126開口銷38螺栓132螺柱48墊圈144螺母54螺母154窄V1561電機55KW/75KW161大皮帶輪71鍵81帳套91小皮帶輪101護罩631 泵安裝泵的安裝位置應盡可能靠近抽送源，以縮短吸入段的長度，減少吸入損失。泵安裝基礎應水平，牢固可靠，以避免振動。632皮帶輪的

10、安裝A. 兩皮帶輪軸線必須平行，且端面誤差不得超過2mmB. 皮帶必須找正、繃緊。C. 電機安裝必須平穩(wěn)、牢固。633進口管路安裝A. 吸入管路截面積必須大于或等于泵流道斷面積。B. 吸入管路中不允許安裝節(jié)流閥，但可以安裝常開閥以減少液 流紊亂，該閥只能在拆泵進行檢修時才能關閉。C. 為避免吸入管路中產生汽泡，抽送源和泵之間應從高到低逐漸過渡。如果用戶需要泵在有吸程狀況下使用，請采用真空泵或 底閥引水。D. 泵入口處的管路必須平直，其長度至少為吸入管路直徑的 二倍。E. 當臨時使用軟管吸入管路時，必須保證軟管不被壓縮，這 是因為吸入段管壓力一般都比大氣壓低，在大氣壓作用下，軟管 被壓縮，從而導

11、致流量降低甚至斷流。634出口管路A. 為便于泵的檢修，出口管路中應該安裝常開閥。B. 所有管路（包括入口管路）必須有自己的支撐，絕不允許 由泵承受管路重量。C. 當工作條件不明或不穩(wěn)定時，出口管路中必須安裝節(jié)流閥, 以保證泵在設計點運行。D. 當泵出口與壓力設備相接時，在節(jié)流閥和泵出口之間必須 安裝止回閥，以防止液體回流，否則，回流液會導致泵發(fā)生“水 錘現象”而損壞。6.4使用6.4.1 準備A用手轉動泵軸，必須保證運轉靈活，各處不得有摩擦聲。B. 檢查轉向，必須確保與泵體所示轉向一致。C. 全開入口段的閥門。D. 給泵體和入口段管路注滿液體，以排出空氣。運轉操作A. 準備工作全部結束后，開

12、動電機。潤滑A. 軸承潤滑a. 軸承采用30號機油潤滑，潤滑油應加至油標的中線， 不要加過多油，否則將導致軸承振動和過熱。每 90天 或1000小時換油一次。b. 在特殊情況下，軸承可用與潤滑油相容的潤滑脂潤滑。B. 填料腔潤滑a. 填料腔必須經常潤滑，以防止填料過熱而損壞，一般要 求每天至少一次。b. 注入潤滑脂時必須旋轉泵軸，以使其充分進入填料腔， 直到填料壓蓋端有油脂滲出為止。6.5維護（參照圖三及零件明細表 2）A.拆卸：a. 拆下皮帶輪組件。b. 拆下填料壓板組件（26）。c. 卸下泵殼（1 ）。d. 拆除葉輪組件（2）、剪切板（3）、加強板（4）:先拆下 螺母（33、34）（螺母為

13、反扣）及墊圈（35）,注意如無 葉輪扳手，則用木制墊塊和木榔頭敲擊渦輪背部輻筋， 退出葉輪組件（2）（拆出時應先在皮帶輪端卡住軸，以 防轉動）。e. 拆除加強套（32）和機封動環(huán)組件（31）。f. 拆除護板（5）和填料箱（6）。g. 退出軸套（30）,如果軸套過緊，可用楔形塊敲擊其尾 部（軸肩處）使其松動。h. 退出擋泥環(huán)（24）。i .拆下左、右端蓋（7、19）j.從軸承托架退出軸承總成。k.松掉鎖緊墊圈，拆出鎖緊螺母（17）和鎖緊墊圈（18）。l .拆下軸承托架，退出軸承（14）（用墊塊墊上，敲擊軸 中心）。m退出軸承（9）（用3英寸套筒對準軸承圈，敲擊套筒使 軸承退出）。B. 檢查a.

14、葉輪：嚴重汽蝕（特別是主葉片）、過度腐蝕、磨損、 破損時，要求更換葉輪。b. 軸：徑向跳動超過 0.05mm軸承座及油封位置嚴重擦 傷，軸上螺紋、溝槽、臺肩及其它表面有損傷時，要求 修整軸，無法修整時，則更換軸。c. 軸套：表面粗糙及損傷嚴重時，更換軸套。d. 經過拆卸的油封必須更換。e. 滾動軸承：對過度磨損，運轉時過緊、過松或有噪聲的 軸承必須更換（新軸承只有在更換時才能，所換軸承必 須和泵原用軸承型號、尺寸一致）。f. O型密封圈：一般經過拆卸的 0型密封圈應更換，對其 它密封墊片等，只要沒有破損，也可以再用。C. 裝配（參照圖三及零件明細表 2）a. 裝配前所有零件必須清洗，特別是O型

15、圈密封槽，螺紋、 軸承及軸承潤滑部位，要仔細清洗，對一些粗糙部位還 應用細紗布打磨。b. 裝軸承（14）時，兩軸承應背對背安裝，旋進鎖緊螺母 后要扣住鎖緊墊片，鎖緊螺母緊固力矩：346牛米。c. 在裝軸套（30）時，在軸上涂一薄層減摩劑。d. 葉輪背面和護板之間的間隙為 0.6mme. 填料壓蓋不能擰得過緊，否則泵運轉時可能導致填料燒 壞。f. 裝配順序按拆卸逆方向進行，裝配好后，轉動軸應靈活， 各部位不得有阻卡。如有阻卡，調節(jié)螺栓（26）和螺母（27）。上緊螺栓（26）是將泵軸及軸上的零件向右移 動，松動螺栓（26）是將軸及軸上的零件向左移動。注意：無論是將軸左調或右調，調整完畢后，一定要將

16、螺 栓（26） 上緊，螺母（27）并緊，以防止軸運轉時軸向竄 動。D. 故障及排除a. 填料密封泄漏嚴重，填料嚴重磨損，軸套表面磨損。拆下填料，用一細鐵絲彎曲90 ，在軸套壁上移動， 如果檢查到有過深的溝槽則更換軸套，填料壓蓋壓得過 緊導致填料磨損嚴重。b. 聚胺脂油封（20）磨損嚴重導致泄漏。排出：更換聚胺脂油封（20）。一般情況，當泵運轉3-6個月后，應更換一次軸封處的 聚胺脂油封和軸套。c. 填料燒壞。原因：填料壓蓋壓得過緊，引起發(fā)熱。排出：更換填料，壓蓋不能壓得過緊。d .葉輪或副葉輪轉動不正常。原因：葉輪背面和護板間隙過小，或副葉輪與護板和填料盒之間間隙過小。排出：用螺栓（26）和螺

17、母（27）調節(jié)間隙。調節(jié)完后用手轉動軸，各部位不得有阻卡、摩擦聲，轉動靈活。e. WJQ56 J-10 剪切泵一般故障及排除一覽表 5WJQ5 6 J-10 剪切泵故障及排除（表 5）序 號故障原因排除方法1軸功率過大1、葉輪與泵殼端面或葉輪 與襯套發(fā)生摩擦或副葉 輪發(fā)生摩擦。2、泵在比設計點揚程低得 多的條件下運行。3、填料壓蓋壓得太緊。4、皮帶打滑。1、調整葉輪與泵殼端面及葉輪 與襯套的間隙，或副葉輪的間 隙，消除摩擦。2、檢查所配工作機是否符合要 求，并關小排出閥門，使泵在 設計點工作。3、重新調整壓蓋緊固力。4、緊皮帶（檢查兩皮帶輪安裝位 置是否合適）。2揚程下降 流量下降1、大塊顆粒

18、堵塞吸入管和 葉輪流道。2、泵轉速下降。3、葉輪磨損。4、葉輪與泵殼端面間隙過 大，泄漏增大。5、進口閥門開度太小。1、清除堵塞物。2、使泵在額定轉速下運行。3、更換葉輪。4、調整葉輪與泵殼端面的間隙。5、開大進口閥門。3軸承過熱1、潤滑油太多或太少。2、油中有雜質。3、軸承磨損。1、使油面保持在油標規(guī)定位置。2、更換潤滑油。3、更換軸承。4泵運行產生 振動和異常噪聲1、葉輪磨損不平衡。2、軸承磨損。3、聯接松動。4、泵產生汽蝕。1、更換葉輪。2、更換軸承。3、緊固各松動部位。4、改善吸入條件，防止空氣進入 泵。5密封泄漏嚴 重1、機圭寸損壞。2、軸套磨損嚴重。3、密圭寸填料磨損過大。4、盤根

19、環(huán)斜卷。5、雜質、異物進入盤根環(huán)。6、盤根環(huán)斜口一致。1、更換機封。2、更換軸套。3、裝填新的盤根環(huán)。4、重新組裝盤根環(huán)。5、清除雜質、異物，清洗密封件。6、重新按要求錯位裝填盤根環(huán)。1. In troducti onThe WJQ5 6 J-10 shear pumpgeneration is uniquely desig ned pump for shear ing polymers and clays.To improve the drill fluid properties, the polymers or clays should be highly sheared before a

20、ddi ng them to the drill fluid system. If not sheared, the polymers maybe jam the strainer and will result in losing amount of polymer and increasing drillingcosts, and the large-size solids in thedrill fluid will harden and difficult to clear away as well. The WJQ5 6J-10 shear pump has proven best

21、forappl ying the high shear n ecessary to hydrate polymers and clays and to their best properties. Using the WJQ56 J-10 shear pumpreduces the bentonite clay needed by 33%or more and polymer needed by 15%or more. It also improve fluid loss and filter cake, builds gel strength, and low shear rate visc

22、osity to better hold up solids. With reliable shaft seal structure and more convenient in operati on and maintenance, it comes up to advaneed world standards in the same products.2. Principle of operationThe WJQ5 6 J-10 shear pump adopts a set of mecha ni cal seal for no leakage at stuffi ng box. In

23、 side pump is a 300 seriesstainlesssteel turbine containing 44no zzles, four scoops and shear plate. Fifty perce nt of the fluid is sheared twice each time through the pump. This turbine shear pump is mounted on a special base with beltsand sheaves to drive pump, OSHAtype belt guard and a 75HP/102(5

24、5kw/75kw) 1480 RPM EXPLOSION PROOF U/L approved electric motor, 460 volts, 3 phase 60 cycle. In cluded is a special hopper(ZHP150) withno zzlesized for thisapplicatio n and one mud kit as a package in order to build a complete shear and hydration system. The pumpis designed to give Ion ger service l

25、ife through the improved shaft seal.There are many principles of proper pump installation and application as well as special considerations for the pump design which, if followed, will further enhance the performanee of your WJQ5 ”6 J-10turbine shear pump.This docume nt will deal with both gen eral

26、and specific recommendations for improved WJQ5 6 J-10turbineshear pump performa nee in both oilfield and in dustrial applicati ons.Warning! This pumpcan not be used on active mudsystem since it will shear drill solids and barite. These solids will also damage pump very quickly.The pr in ciple sees f

27、igure 1.T T7 TFigure 1 Prin ciple diagram of WJQ56 J-10 shearpumpFluid enters at“V and is pumped parallel to theshear “ P . The chambers scoops 50%of the volume being pumped and jets that fluid through 44 nozzles“ N andimpacts the shear plate“ P at very high velocity at“ M” 90 degrees to the fluid e

28、ntering the pump. The total fluid“V” and“ N travels down the shear plate to“T” where the fluid is further sheared due to the shape and speed of the plate tip.3. Explanation of modelWJQ 56 J-10I Turbine nominaldia.(Inches)Seal form Pump inlet dia. (Inches ) Pump outlet dia.(Inches )Turbine shear pump

29、4. Performanee Table(Table 1)ModelCapacit y (m3/h)Head(m)Speed (r/mi n)Efficie ncy(%)NPSH(m)Power(kw)Shaft powerMotor powerWJQ56JC-101553222802834655WJQ56JC-101553222802834675Fig.2 Performa nee curve:WJQ56 JC-103n*5. Structural drawingFig. 3 WJQ5乂 6JC-10 Shear pump parts list(Table 2)ItemNo.Qty.Part

30、 NameItemNo.Qty.Part n ame11Pump Case274Nut21Impeller assembly284Washer31Shear Plate291Press plate assembly41Stren gthe ning board301O-Ring(55 x 3.1)51Protect ing board311Stuffi ng61Stuffi ng Box321Pin71Right cover331Shaft sleeve82Oil Seal63.5 x 88.8 x 12341Mach ine seal92Beari ng(2313)351Rein force

31、sleeve101Oil hole cover361Cap Nut111Pump seat371Nut121Beari ng Hous ing381Washer131O-Ring(140 x 3.55)391Front Protect ingPlate142Beari ng(7311AC/DB)151O-Ring(125 x 3.1)161Grease cup172Lock Nut182Lock Washer191Left cover201Oil Seal47.6 x 69.9 x 10213Shaft221Oil mark231Pipe plug ZG1/2241Mud throw ing

32、ring251Pipe plug ZG3/4264Bolt6. Guide to installation, operation and maintenance of the WJQ5x 6JC-10 shear pump.6.1 ForewordThe gen eral problems to in stallati on, operati on and maintenance of the WJQ5 x 6J-10 shear pump are introducedin the guide(for your informationonly),please con tact our comp

33、a ny for in solvable problems in this guide and will be replied in time.6.2 Emphases6.2.1 Operate the pump only in the performa nee range and service for which it was desig ned.6.2.2 This pump employs mechanial seal as its primaryseal and pack ing seal as its sec on dary seal. Pack ing seal can be c

34、ompacted only whe n mecha ni cal seal is disabled. Otherwise, the seal may be damaged.6.2.3 No-load running time of the pumpcannot exceed 5s.The pump must run under the condition of being filled with liquid slurry. Otherwise, the mechanical seal may be damaged.6.3 In stallati onlo dril I tl id Fem T

35、HTlFul. ”叱 cl jrih旳P nipP ol rrgr i w h drt -ri “卩 h1Fig.4 Flow diagram of WJQ5 x 6J-10 shear pump in stallati on systemThe shear pumpsystem is formed by shear pump, mixing hopper, pipeli ne and polymer/clay hydrator. For in stallatio nand tran sportati on,the polymer/clayhydrator is formed by a sep

36、arate compartme nt.Fig.5 WJQ5 ”6 JC-10 Shear pump SketchFlange Dimensions (inch )(Table 3)Fla ngeDNDdb (mr)n-dDischargeFla nge51081/2268-7/8Sucti onFla nge6113/897 2268-78Note: DN-Fla nge in side dia., D-Fla nge outside dia.,d-Dia.of bolt circle, b-Fla nge thick ness, n-d No. &size of bolt holes.WJQ

37、5 x 6JC 10Shear pump assembly list(Table 4)ItemQtyPart NameItemQty.Part Name11Base-plate116Clevis Pin with Head21Shear Pump126Split Pin38Bolt132Stud48Washer144Nut54Nut154NarrowV-belt(15)61Electric Motor(55kw/75KW)161Drivi ng Pulley71Key81Expa nding Sleeve91Drive Pulley101Hood631 Pump in stallatio nT

38、he pumpshould be located near the liquid source so that the suction line can be short and reduce losses.Thefoundation should be sufficientlyrigid and substantial toabsorb any vibrati on and support the base plate at all poin ts.The base plate should be in stalledin a levelpositi on.6.3.2 Pulley in s

39、tallatio nA. The axes of two pulleys must be parallel to each other and the end surface error can not exceed 2mm.B. The belts should be aligned and tightened.C. The electric motor must be moun ted stably.6.3.3 Conn ecti on of sucti on pipesA. The suction line should be equal to or larger than the pu

40、mp sucti on.B. The capacity of a cen trifugal pump should n ever be adjusted by throttling the suction line, but a positiveshut-off valve of a type to cause minimal turbulenee should be in stalled in the sucti on line to permit the clos ing of the line for removal of the pump for inspectionandmai nt

41、enan ce.C. The sucti on line should be desig ned to elim in ate any air pockets. The pipes should gradually slope dow nwards to the supply source to eliminate air pockets. Please use a vacuumpumpor foot valve for priming if you operate the pump the pump under the condition of suction lift.D. The suc

42、tion line should have a straight section into the pump of a len gth equivale nt to at least two times its diameter.E. For temporary hook-up when flexible hose is used, a non-collaps ing hose is esse ntial since the sucti on line pressure is often below atmospheric pressure. A collapsed suction line

43、will result in below average or complete lossof flow.6.3.4 Discharge pipesA. A positive shut-off valve should be located in the discharge pipe to permit the clos ing the line for removal of the pump for in specti on and maintenan ce.B . All pipes(including suction pipes) should be in depe nden tly s

44、upported and accurately alig ned. The pump must not support the weight of pipe or compensate for misalig nment.C. If operating conditions are not known with sufficient accuracy, it will be n ecessary to provide a throttle valvein the discharge line to en sure that the pump operates at the desig n po

45、int.D. If the pump is connected to a pressurized system, itis importa nt to in stalla check valve betwee n the dischargeand the throttling valve. The check valve will prevent back flow through the pump. Back flow may cause the impeller to becomeloose on the shaft. A loose impeller will likely lead t

46、o mecha nic damaged and fluid leakage ben eath the shaft sleeve.6.4 Operatio n6.4.1 Preparatio nA. Pump rotates freely by hand.B. Check the pumprotate directi on, the correct directi on can be found by an arrow on the cas ing.C. Ope n the sucti on valve fully.D. Pump and suction line full of fluid f

47、or venting air.6.4.2 Operation for runningStart the motor after finishingall the preparations.6.4.3 Lubricatio nC . Beari ngs lubricati onc . Add a good grade of 10w30 weight motor oil un tilthe middle level of dipstick. Do not overfill the oil. High levels nay cause chur ning and overheating of the

48、 bearings. Oil should be changed every 90 days or 1000 hours.d. Under the specialcondition,you may select agrease which can dissolve with the motor oil for lubricatio n.D. Stuffing box lubricationc. The stuffing box maybe re-lubricated with grease as ofte n as n ecessary to preve nt the pack ing for

49、m overheating. It should be lubricated at least once a day.d. Cn filling, grease should be pumped into the boxwhile turning the shaft until it comes out around the pack ing gla nd.6.5 Maintenance (Refere nee to figure 3 and table 2)B. Disassembly :n.Remove the pulley kit.o. Remove the Pressing board

50、(29).p.Remove the pump case (1).q.Remove impeller ( 2 ) ,shear plate ( 3 ) and Strengthening board (4) ： Screw the left-hanged nuts(36&37 off use a wrench(Restrain the shaft at the pulley end to preve nt rotati on, If you do not have a wren ch). Put a block of woodaga inst the ribs of turbine and hi

51、t the wooden block with a hammer to withdraw the impeller (2).r.Remove rein force sleeve(35) and mecha ni cal seal(34).s. Withdraw protecting board(5) and stuffing box(6).t . Removethe shaft sleeve (33) . A wedgemaybe driven betwee n the end of the sleeve and the shoulder of the shaft to free the sleeve.u. Remove the blocking mud ring(24).v. Remove left right cover(7&19).w.Pull the complete shaft and bearing subassembly from the frame.x. Remove the lock nut(17) and the lock-washer(18).y.Removethe bearing frame and bearings(14) from theshaft. Note:Impacti ngof the en tireshaftassembly against