如果對泵作定期維護(hù)，應(yīng)通讀并理解本說明，要確保正確的拆卸，應(yīng)遵守下述要點(diǎn)：
1.拆卸時(shí)要注意所有部件的位置和方向，以保證組裝時(shí)正確歸位，存放零件的場地應(yīng)干凈整潔。
2拆卸時(shí)要使用軟口臺鉗夾持泵體。進(jìn)行維護(hù)時(shí)，要小心拿放部件，避免墜落及碰撞。因?yàn)檩p微的劃痕或毛刺都會使裝配困難，并引起對泵的損壞。
3.小心取出密封組件，注意不要損壞密封溝槽和軸，否則泵工作時(shí)，可能會導(dǎo)致物料泄漏。然后檢查冷卻水進(jìn)出口，確認(rèn)無堵塞。密封組件是有兩個(gè)部件并通過緊固螺釘組合在一起的。如有堵塞，可將其拆開，用機(jī)械或化學(xué)方法進(jìn)行清潔。
4.將端蓋板上所有的螺栓松開一圈，然后全部旋松并取出。取下端蓋板，并將其放在安全的地方，以防損壞。這時(shí)要記住每個(gè)軸承上的溝槽對應(yīng)于泵進(jìn)口的方位。組裝時(shí)必須按照原方位裝回，否則，當(dāng)啟動時(shí)泵會被嚴(yán)重?fù)p壞。
5.將齒輪軸與軸承從中板中取出，由于泵內(nèi)留有殘余物料黏度，它們有時(shí)很難被取出。因此取出時(shí)要特別注意，不要敲打或損壞齒或軸承的邊角，可用塑料或軟銅錘，輕輕敲打，將其取出，不要用鐵錘。
6.將軸承從齒輪軸上取下，注意不要損壞齒，軸承邊角及軸。如果不易拆開，（由于有殘留物料黏度），可用塑料或軟銅錘敲打軸承使其松動，不可用鐵錘。不要用螺絲刀或其它工具將其撬開，因?yàn)檫@容易將齒損壞。要記住所拆下的軸承來自于哪根軸，然后將其放在一旁安全的地方。
7.泵被解體以后，所有部件都應(yīng)仔細(xì)檢查，確認(rèn)是否有磨損，裂紋，毛刺及劃痕等。端蓋板，D型軸承可用600#砂紙打磨，如有毛刺，劃痕或其它尖角出現(xiàn)，可用磨石輕輕打磨。計(jì)量齒輪，中板及D型軸承之間的關(guān)系對保證計(jì)量性能是非常重要的，因而打磨時(shí)要特別小心，只需將表面拋磨干凈，而不能去除金屬。在任何情況下，都不能對這些部件進(jìn)行磨削。
If you want to do regular maintenance for the pump, you should read and understand the instruction and ensure the correct disassembly. Observe the following points:
1.Notice the position and direction of all parts during disassembly, so as to return the correct position during assembly. Place the parts in a clean and tidy place.
2. Hold the pump with soft mouth clamp during disassembly. Take and put the parts carefully during maintenance, avoid falling and colliding. The slightest nick or burr will cause trouble for assembly and damage the pump.
3. Remove the seal components carefully, don’t damage seal grooves and axis, otherwise that will cause the material leakage when the pump is working. Check the inlet and outlet of cooling water, ensure there is no jam. Seal components are assembled by two parts through tightening bolts. If there is jam, you can unpack them and clean them by mechanical or chemical method.
4. Loosen one circle of all bolts on the cover, then loosen and remove all of them. Remove bottom cover; place it in a safe location. Remember each bearing on the groove corresponds to the inlet direction of the pump. Reinstall them in original location; otherwise the pump will be damaged seriously when you start it.
5. Remove the gear axis and bearing from middle plate. It will be difficult for you to remove them owing to the remnants of viscous materials. Don’t knock or damage gear or bearing angel. You can remove them by using plastic or soft copper hammer, but iron hammer is not allowed to be used here.
6. Remove the bearing from gear axis; take care of gear, bearing angel and axis. If it’s hard to remove （dueling to the remnants of viscous materials）， you can loosen the bearing by using plastic or soft copper hammer, also iron hammer is forbidden. Don’t pry it with screwdriver or other tools, because that will damage the bearing. Remember which axis do the bearings come from, and then place them in a safe location.
7.After breaking up the pump, check all parts and see if there is abrasion, crack, burr, and nick or not. The cover and D shaped bearing can be burnished by 600# sandpaper. If there is burr, nick or other sharp angle, you can burnish them with grindstone. The relationship among metering gear, middle plate and D shaped bearing is important to assure the metering performance, so you should be careful when burnishing them. You should only burnish the surface clean, don’t remove the metal. You can’t grind these parts under any conditions
