Dismantling of E11 mining machine

1. [disassembly steps of range hood]
1. Open the oil drain hole and drain oil,
A. remove the oil filter net at the air inlet
B. take out all the oil filters< Remove the switch assembly and circuit board
3. Cut off the power supply of the range hood to ensure personal safety
4. The shell surface and net cover of the range hood are generally cleaned according to the cycle specified in the manual, and cleaned with a soft cloth and a small amount of warm water with neutral detergent. Then dry it with a dry soft cloth
5. Disassembly and cleaning of the inner cavity of the wind wheel and volute:
1) screw off the cover plate and the net cover, and remove the cover plate and the net cover
2) then loosen the fastening screw of the wind wheel and take out the wind wheel
3) soak the removed parts in warm water with neutral detergent, wash them with soft cloth and dry them
4) use a soft cloth with a small amount of warm water containing neutral detergent to clean the dirt in the inner cavity of the volute, and then use a soft cloth to clean it and then dry it
5) assemble the above parts in the reverse order of disassembly
6) after installation, check whether the oil circuit of the appliance is smooth and whether the sealing ring on the volute can be sealed
7) please clean the air wheel, volute, oil nozzle and oil drain pipe according to the cycle specified in the manual.

2. It shows that E11 is abnormal water inflow, and the water level does not meet the requirements within the specified time. Check whether there is no water in the faucet. Check whether the water inlet valve and water pipe are dirty and blocked. Check whether the water inlet and water outlet drain while washing. If there is a foreign matter stuck in it, take it out. Or if the water inlet is full and E11 is displayed, then the accessories and position sensor need to be replaced.

Wang Caina

3. "The washing machine falls into foreign matters, and 90% of the foreign matters are stuck between the inner barrel and the outer barrel. (I mean the vertical washing machine). Just take off the top cover, and then take off the annular water retaining cover on the outer barrel. Basically, you can see the foreign matters. If you still can't see them, and the foreign matters are very loose, you can turn the washing machine upside down and pour them out, If it's a sock or something, you can make a hook with iron wire and hang it out between the two rights. If it's not enough, just... "

4. Hello
first, remove all the visible screws
and then lay the monitor on your back
first, break off the front frame, part by part. Carefully break off
and finally remove the rear shell
above for reference
hope to adopt

5. In case of vehicle failure, it is recommended to go to the repair shop to check the specific cause of the failure through the computer, and then carry out maintenance. Hope to help you, please accept

6.

The oxygen sensor is faulty. It is recommended that the user replace the oxygen sensor

The walking distribution valve is different from other distribution valves when the walking control handle of excavator is pulled. Most of the machine's travel distribution valve is not hydraulic control, but through mechanical pull rod, directly pulled by hand. Because the machine is old or the distributing slide valve has been worn, the clearance between the traveling slide valve and the hole becomes larger. The high-pressure oil will leak from the oil passage through the clearance of the slide valve to the spring end. There is a spring cover outside the spring, which forms high pressure inside the cover. As a result, when the distributing valve moves towards the spring side, the control lever is very heavy (lighter in the other direction)

extended data:

precautions:

when lifting hydraulic excavator, the surrounding conditions of lifting site should be confirmed, high-strength hook and wire rope should be used, special lifting device should be used as far as possible, micro operation mode should be selected, the action should be slow and balanced, and the length of lifting rope should be appropriate, If it is too long, the swing of the load will be large and difficult to control accurately

the bucket position should be adjusted correctly to prevent the steel wire from slipping off, and the construction personnel should try not to get close to the lifting objects to prevent the danger of improper operation

When walking correctly, the working device should be stowed as far as possible and close to the center of the excavator body to maintain stability, and the final drive should be placed behind to protect the final drive

7. E11 alarm is that there is a problem of water inflow and the water level does not reach the set level within the specified time
check whether the water inlet is smooth and whether the water pressure is enough
fault code of drum washing machine

E11. Water inflow is abnormal, and the water inflow does not reach the set water level within 20 minutes

E12, abnormal drainage, drainage 8 minutes did not reach the reset water level< At the middle dehydration stage, normal dehydration could not be achieved for six consecutive times

U3, dehydration eccentricity is abnormal, when the final dehydration, after three adjustments, the eccentricity value is still greater than 12

U4, the door lock is abnormal, the unlocking is not released for three consecutive times, and the locking is not locked for three consecutive times.

8. The video or picture of network machine dismantling is compared with that of dismantling the machine and cleaning the fan. When disassembling, you must be careful and watch it several times before you start
there are three steps to clean the fan, one is to clean the st, the other is to add lubricating oil to the fan, and the third is to better heat dissipation silicone grease

9.

Oil tank pressure very low fault

causes and solutions of low oil pressure&# 8194;&# 8194;

1. Insufficient oil quantity: if the oil quantity is insufficient, the oil quantity of the oil pump will be reced, or the oil pressure will be reced e to the air entering into the pump, and the crankshaft and bearing, cylinder liner and piston will be severely worn e to poor lubrication. Therefore, the oil level in the oil pan should be checked before working every day to ensure the normal oil level. If the oil level is insufficient, the same type of oil proced by the same manufacturer should be added

2, the oil pump does not run: if the flat key of the drive gear and the drive shaft of the oil pump is damaged or falls off; If the filter is damaged, the oil pump will inhale foreign matters and the gear will be stuck, the oil pump will stop running and the oil pressure will drop to zero. At this time, the damaged flat key or filter should be replaced&# 8194; &# 8194;&# 8194;

3. Oil pump wear: when the clearance between the pump shaft and the bushing, the clearance between the gear end face and the pump cover, the backlash or radial clearance is too large e to wear, the oil pump volume will be reced and the oil pressure will be reced. At this time, the worn parts should be replaced, and the inner plane of the pump cover should be ground to make the clearance between the pump cover and the end face of the gear return to the standard range

extended data:

precautions:

1. It is strictly forbidden to repair, maintain and fasten the excavator in operation. In case of abnormal sound, peculiar smell and high temperature rise ring the working process, the vehicle shall be stopped immediately for inspection

The turning of excavator should not be too fast, if the turning is too big, it should be turned by several times

3. When the excavator rotates, the rotary clutch should be used to cooperate with the brake of the rotary mechanism to rotate smoothly. Sharp rotation and emergency braking are prohibited

Before the bucket leaves the ground, it is not allowed to rotate or walk

When the crawler excavator is moving, the boom should be placed in the forward direction of running, and the height of the bucket from the ground should not exceed 1m

reference source: Network Komatsu excavator structure and maintenance

reference source: Network oil tank

reference source: network pressure

reference source: network circuit board

reference source: Network Komatsu excavator

10. The feedback value of ca451 and common rail pressure sensor is too high
E11. Engine control system fault (rece output power to protect engine).