Replace the motor bearing operation safety regulations preparation 1, wear labor protection supplies.
2, prepare tools, utensils: one to each of the 900 mm, 450 mm pipe wrench in hand, 375 mm and 300 mm board 1 get 1, special socket wrench, wheel 1 and 0.
The 75 kg hammer 1, dedicated small wheel pull 1 set, 2 pieces of fine sand paper, high speed 1000 g butter, soft metal bar 1 pry bar 2 root root, 1000 mm, with specifications of the motor bearing 2, insulating gloves 1, only 1 bottle test pencil, pen, class reports.
Steps 1, using test pencil, electric control cabinet shell confirmed safe open cupboard door control, press the stop button, according to the actual production situation, the pumping unit horsehead parked in the right position, brake brakes, side switch power, close control cupboard door, iron shell disconnect switch, stop time, check the brakes, brake lock block in the range between 1/2 ~ 2/3, good connection of different parts.
2, the motor shaft taper or take condom can remove the motor pulley fixed nut first or will cover off.
Before 3, unload motor wire, unloading four fixed screw loose motor, the motor to move forward with levers, remove the drive belt.
4, replace the motor pulley end bearing: will pull on wheel installed, with tongs bite on wheel pull top silk back end, forcibly even turn the cap screw, remove the motor pulley.
5, with a wrench, loosen the screw holding the motor bearing cover, bearing cover, remove the motor end cover.
6, will be dedicated small wheel installed, with tongs bite on wheel pull top silk back end, forcibly even turn the cap screw, will motor bearing to unload.
On July and clean the motor shaft, sets of new bearing, soft metal bar mat, even with a hammer to knock into the installed.
8, the new change bearing butter maintain lubrication, pack good motor end cover and bearing cover, and the motor pulley and belt.
9, replace the fan motor end bearing: motor fan cover, remove the fan circlip callipers, fan motor, the motor end cover on removing the motor fan.
10, press 1.
32.
2.
6 to 1.
32.
2.
7 steps to replace the bearing.
11, the new change bearing butter maintain lubrication, pack good motor end cover and the fan, motor fan cover.
No obstacles around 12, check the pumping unit, slow brakes, feng shell switch.
Test pencil is used to inspect electric control cabinet shell, confirm safety, open the electric control cabinet, sideways switching power.
Start pumping unit, press the start button, the use of the crank inertia close electronically controlled cupboard door, open time record.
Only 13, pick up tools and equipment, and well organized.
14 report, the relevant data fill in the class.
Note 1, hit the motor pulley, the hand grip hammer are not allowed to wear gloves, prevent hammer flew from harm;
Hammer matter pulley, tongbang, must be paid when tapping up and move the copper bar, uniform pulley bearing and it is forbidden to use hammer percussion pulley directly.
2, the two pulley face to achieve 'four point one line', and the drive belt firmness, right should not be too tight or too loose.
3, loaded with butter to moderate, can make the motor temperature rise too much, too little not lubrication effect.
4, must be properly with emery cloth clean the shaft and hole, preventing fit clearance is too large, wheel, fit clearance is not more than plus or minus 0.
02 5 mm range, use on wheel round pull, pull at the top of the shaft and the wheel didn't before the separation of tight screw, attention should be paid to prevent wheel and shaft abruption, and drawing on wheel falls off a piece of hurt.
6, the site operation must have a guardian, any operation on the pumping unit should be carried out under the conditions of stop brake.
7, water mixed with water well control, the use of a well of heating device should be appropriately adjust the temperature before and after operation.
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