阀进行调节，尽量使泵运行工况接近泵的设计点。
(4)、均匀地拧紧填料压盖上的压紧螺母，使液体呈滴状流出，同时注意填料腔处的温升；
(5)、当停止水泵运转时，要先关闭真空表及压力表的旋塞和排水管路上的闸阀，然后切断电动机电源。当所处环境温度低于0℃时，则应将泵体下部的四方螺塞打开，去掉剩水，以免冻裂；
(6)、长期停止使用时，应拆开水泵，将零件上的水擦开，在加工表面涂上防锈油保管好。
2、运转：
(1)、水泵轴承最高温度不应超过75℃：
(2)、润滑滚动轴承用的钙基黄油的数量以占轴承体空间的1/3～1/2为宜；润滑滑动轴承的机械油(N10～N32)，油位高度要控制，防止油环不上油；
(3)、填料磨损时可适当压紧填料压盖，若磨损过多应加以更换；
(4)、定期检查弹性联轴器部件，注意泵和电机轴承温升；
(5)、运转过程中，如发现噪音或其他不正常的声音时，应立即停车，检查原因，加以消除；
(6)、不得任意提高泵的转速，但可降低转速使用，本型泵额定转速n，流量Q，扬程H，功率N，倘若降低转速为n1，则流量为Q1，扬程为H1，功率为N1，可用下列公式换算：
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pump, the cocks on the pipe passage way which connect
the pump should be turned off. Then start the motor. It is not allowed to turn
on the motor until the running speed is normal, and then open gradully the brake
valve until the suction water of the two sides reachs balance.
4. Screw homogenizenously
the nuts on the pump packing gland so as to the leakage of liquid is little, at
the same time, pay more attention
to the packing case temperature rising.
5. While stopping the pump
running, first turn off the cocks
of the vacuum gauge and manometer and tuna off the brake valve on the discharge
pipe passage way. If the anabient temperature is low, the coach under the pump casing should
be loosen to drain away the rest water so as to keep the pump casing from being
split by forst.
6. If it will not be used
for a long time, the pump must be disconnected and all the parts should be kept
dry, and smear the machining face
with rust- proof
grease
oil.
b. Running:
1. The temperature of the
pump beating should not be exceeded 75℃.
2. The suitable quantity of
the good Ca- bade grease which is used to lubricate the bearing occupies 1/3 to
1/2 space of the bearing body, and it should be changed periodicaly.
3. When the paking worn, tighten the
packing gland properly or change it if it is necessary.
4. Check the flexible coupling part, care
more for the motor bearing temperature rising.
5. During rumfing, if any noise or unnormal sounds are
heared, stop the pump immediately, and look for the cause, then clear out.
6. It is not allowed to increase the
rumfing speed want only, but you can decrease the running speed of the pump for
working. The performance paranaet of the pump changes as the following. (Please
see the formula as follow)
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