Basic steps and precautions for ordering food.

Basic steps and precautions for ordering food;

1. menu

(1) After the guests are seated, the waiter asks the guests what kind of tea they need. After preparing tea, according to the principle of "ladies first, guests first, hosts later", pour tea for guests from the right.

(2) Open the first page of the menu, according to the principle of "ladies first", hand the menu to the guest from the right side with both hands, and then stand where you can observe the facial expression of the guest obliquely, with your upper body slightly arched.

2. Recommend hotel dishes.

(1) Before the guest orders, the waiter should set aside time for the guest to look through the menu.

(2) When the guests browse the menu, they should give a brief introduction to the dishes on the menu in time and answer the guests' inquiries.

(3) Introduce the dishes recommended by the chef, the dishes specially recommended today and other special dishes to the guests.

Color dishes, best-selling dishes and high-grade dishes, and introduce their style, taste, temperature and characteristics.

Step 3 order from the menu

(1) The waiter writes down the date, my name and station number, the number of people eating, the kind of meal, etc. On the menu.

(2) When ordering food, guests should pay attention to their names, weights and cooking methods. The dishes ordered by the guests, help the guests choose the dishes and actively promote them, and accurately record the names of the dishes.

(3) For special dishes, introduce their characteristics and ask the guests about the required temperature, ingredients and seasonings.

(4) If the meal time is tight and the ordering time is long, you should ask the guests for advice in time; If the guests order the same dish, such as soup, soup or two dishes with similar tastes, they should politely ask if they need to change dishes.

(5) If guests have special requirements, they should indicate them on the menu and inform the kitchen, vegetable cutter, waiter and other relevant personnel.

4. Repeat the contents of the order

(1) After the guest orders, the waiter should clearly repeat what the guest ordered and ask the guest to confirm.

(2) After retelling, indicate the order time (at that time) in the upper right corner of the menu for query.

(3) Take back the menu and thank the guest, and ask the guest to wait for a moment, indicating the approximate waiting time.

5, distribution point menu

(1) The waiter sends the first copy to the cashier.

(2) Send the second and third copies of the menu to the kitchen.

(3) Send the fourth copy to the vegetable cutter.

(4) Send the fifth copy to the regional waiter.

Precautions for ordering:

The same guest does not change people to order.

Check whether the carbon paper is clamped properly before ordering.

Keep a good standing posture and don't hold the ticket holder.

Clear handwriting and accurate time.

Repeat the dish name in detail after ordering.

Pay attention to whether the guests need more tea when ordering.

Guests' special requirements for dishes are clearly marked in brackets after the name of the dishes.

If the guest arrives after ordering, ask whether the dishes can be processed. If not, they must mark a "call".

When ordering, if other tables come, guests should be greeted.

Do a good job in sales promotion when ordering, and don't show impatience when guests order slowly.

Basic steps and precautions of rock climbing Because the end of the body is mainly in contact with the rock wall during rock climbing, the strength, flexibility and fine control of the end of the body are required. Therefore, on the basis of general warm-up activities, such as the stretching of large joints such as shoulders, waist, hips and knees, special attention should be paid to the warm-up of small joints such as fingers, wrists, elbows and ankles. Generally, there are shiatsu, palm-to-palm salute and leg press after lunge.

According to the position of the protection point, there are two protection methods: upper protection and lower protection. Only the upper protection method is introduced here. The upper protection method is to set the protection point at the top of the climbing route, which corresponds to the top rope climbing and is suitable for training and beginners to climb. At present, there are several popular operation methods, but the safety is high, and the French protection method is widely used, which is usually called five-step method.

1, specific operation steps: five steps are a cycle (taking the right hand as an example). (1) The palm of the left hand is upward, the palm of the right hand holds the main rope downward, and the left hand pulls the rope upward. (2) Hold the rope in your right hand and bounce it backwards from your chest to the outside of your right thigh. (3) Move the left hand to the top of the right hand and hold the rope with the palm down. (4) Move your right hand to the top of your left hand. (5) Return to the first step.

2. Note: (1) At any time, one hand should hold the rope passing through the descender. (2) When paying off the rope, both hands should be coordinated. (3) Pay off the rope slowly and evenly.

Basic steps and precautions of suspension maintenance 1. The maintenance of suspension system is mainly to check the installation and function of each component, and it is required that there are no defects such as looseness, deformation, excessive wear, excessive clearance and weakened elasticity. Especially, the deformation of suspension arm and the wear of bushing and ball joint will make the wheel positioning inaccurate and easy to fail. The maintenance cost varies greatly depending on the model, region and repair shop level, which depends on the local actual situation.

Second, the fault phenomenon

1. The connecting pin (rod) of the shock absorber falls off or the rubber bushing (pad) is worn and cracked.

2. The oil quantity of the shock absorber is insufficient or there is air.

3. The damping valve is poorly sealed.

4. The piston and cylinder of the shock absorber are excessively worn and loose.

Third, the fault diagnosis and elimination

1. Check whether the connecting pin (rod), rubber pad and connecting hole of the shock absorber are damaged, detached or broken, and repair or replace them in time if any.

2. Check the shock absorber for traces of oil leakage and old oil leakage.

Press the bumper of the car hard, and your hand is loose. If the car body can jump 2~3 times, the shock absorber will be fine. On the contrary, the fault is inside the shock absorber and should be removed for maintenance.

4. Wheel alignment: Check the wheel alignment to ensure that all alignment parameters are within the specified range.

Third, others.

1, suspension spring

? Spring wear inspection: crack, wear or damage.

? Elasticity check.

? Spring installation: the installation position and direction are correct, and the clearance conforms to the regulations.

2. The vehicle is overloaded or overspeed on the uneven road, or the speed is too fast when turning, and the load suddenly increases.

When the vehicle is used under long-term overload or uneven load, the load of suspension spring is not released as required when the vehicle is sealed.

If the maintenance is not timely, the suspension springs are poorly lubricated or not lubricated, which reduces the relative displacement ability between the suspension springs and leads to the reduction of the bearing capacity and fracture.

U-bolt is loose, and the load is concentrated on the upper piece of leaf spring, which is easy to break.

The curvature of the spring leaf of the new suspension is different from the original one.

Too much emergency braking (especially when the braking is poor after the front braking), or when the car goes downhill with full load, the load of the car is moved forward by emergency braking, and the front suspension spring suddenly receives additional load, resulting in one or two suspension springs breaking.

3. Boom

? Pry the bracket of cantilever, support bar, stabilizer bar and control bar, and check the clearance in all directions. If it is too large, retighten or replace the bushing horizontally.

? For the strut suspension, you can push and pull the top of the wheel by hand to check whether the upper bracket is loose or damaged.

? Check whether the cantilever is deformed.

? Check the installation connection.

? Check the clearance of the ball joint. If the clearance is too large and the wear is serious, replace the ball joint.

4. Buffer

? Check that the shock absorber should be free of oil leakage, deformation and damage, otherwise it should be replaced.

? Check the installation of shock absorber.

? Check the operation of the shock absorber: press the body by hand.

The basic steps and precautions of decoration depend on the layout of your furniture and home appliances. Pay attention to waterproof engineering during installation, and carry out pressure test on water pipe line. See if there is any leakage in the interface. After the completion of the hydropower embedded project, the hydraulic construction will enter the site. Be careful with the lines during construction. Don't accidentally destroy water and electricity lines during construction. If it is damaged, it must be replaced. Don't work with illness.

What are the basic steps and precautions for learning tea ceremony? Brewing technology and drinking of Pu 'er tea: The brewing temperature of Pu 'er tea reaches100 C boiling water. The amount of tea for making Pu 'er tea: the ratio of tea is (1g: 50g), or the amount of tea is about 2/5 of the container capacity. Selection of brewing water for Pu 'er tea: pure water or mountain spring water (soft water is preferred). Pay attention to boiling when boiling water, so as to avoid too little oxygen in the water affecting the activity of tea. Tea soaking time: generally, pressed tea can be slightly shorter, loose tea can be slightly longer, tea quantity can be slightly shorter, tea quantity can be slightly longer, initial soaking can be slightly shorter, and soaking can be slightly longer.

Selection of brewing equipment:

(1) teapot (best): Because Pu 'er tea is suitable for awakening tea leaves and leaching the contents of tea leaves with high temperature, and the teapot has good air permeability and heat preservation, it is best to brew it with a teapot.

(2) Cover the bowl and cup (most commonly used): Because the elegant style of cover the bowl can best reflect the beauty of the color of Pu 'er tea, you can freely appreciate the color change of Pu 'er tea soup, so cover the bowl and cup is the most commonly used brewing vessel for modern tea art.

Tea ceremony is a kind of life etiquette with tea as the medium, and it is also considered as a way of self-cultivation. Making tea, tasting tea, drinking tea, enhancing friendship and learning manners is a very beneficial and beautiful ceremony. Drinking tea can calm the nerves, help to cultivate sentiment and eliminate distractions, which conforms to the oriental philosophy of advocating "quietness" and the "introspection and practice" thoughts of Buddhism, Taoism and Confucianism. Tea ceremony spirit is the core and soul of tea culture.

A kind of tea drinking art that expresses certain etiquette, personality, artistic conception, aesthetic viewpoint and spiritual thought through tea tasting activities. It is a combination of tea art and spirit, which expresses the spirit through tea art, and it flourished in China in Tang Dynasty, flourished in Song Dynasty and declined in Qing Dynasty. The main content of China Tea Ceremony pays attention to the beauty of tea, tea, temperature, tea set and environment, and at the same time, it is accompanied by emotional conditions to achieve the highest enjoyment of "taste" and "heart". Japanese tea ceremony is called aesthetic religion, with harmony, respect, purity and silence as its basic spirit, which is the heritage of Tang and Song Dynasties.

Can you briefly talk about the basic steps and precautions of tail flick? The principle of drift generation:

In the final analysis, there is one kind of blame: the rear wheel loses most (or all) of the grip, and the front wheel should still be able to maintain the grip (at most, only a small part can be lost, and it is best to gain extra grip). At this time, as long as the front wheel has a certain lateral force, the car will swing and drift.

How to make the rear wheel lose grip;

1. There is a negative speed difference between the rear wheel and the ground during driving (the speed of the rear wheel is relatively low).

2. In any case, the speed difference between the rear wheel and the ground is positive (the rear wheel speed is relatively high).

3. Reduce the positive pressure between the rear wheel and the ground during driving.

It is enough to satisfy one of these three items.

In fact, 1 2 are all methods to reduce the friction coefficient, which are separated by different application methods.

How to maintain front wheel grip;

1. There is no great speed difference between the front wheel and the ground during driving.

2. During driving, increasing the positive pressure is better than reducing the positive pressure between the front wheel and the ground too much. These two items must be met at the same time.

In actual operation, the handbrake must ensure that there is a negative speed difference between the rear wheel and the ground during driving (the speed of the rear wheel is relatively low) and there is no big speed difference between the front wheel and the ground during driving;

Simple operation of drifting initial state:

The methods to produce drift are:

1. When going straight, pull the handbrake and then hit the direction.

2. Hand braking when turning

3. Drive straight, brake suddenly and then hit the direction.

Slam on the brakes when turning.

5. Rear-wheel drive with sufficient power (or four-wheel drive with rear-wheel drive in proportion) slams on the accelerator to hit the direction when the speed is not very high.

Among them, 3 and 4 use weight transfer (the weight of the rear wheel is transferred to the front wheel), which is the least harmful method to the car.

1 2 is only used for front-wheel drive and four-wheel drive in rally competition, and it is free unless you are not afraid of damaging the car.

Note that 1 and 2, 3, 4 are separated, because the movement route of the car will be very different. Important note: Drift cornering, like ordinary cornering, has a speed limit. The speed limit of drift cornering can only be higher than ordinary cornering at most, and the speed limit of drift cornering on hard ground is lower than ordinary cornering!

As for whether the tail can be swung in the end, it is related to many factors, such as the friction coefficient between the tire and the road surface, vehicle speed, braking strength, throttle size, front wheel angle, vehicle weight distribution, track wheelbase, suspension hardness and so on. For example, it is easy to wag your tail when driving in rainy and snowy days, but it is more difficult not to wag your tail; The higher the driving speed, the easier it is to flick the tail (so the first rule of safe driving is not to drive too fast); Hit the direction quickly, easy to flick the tail (the master who taught me to drive told me not to hit the steering wheel too fast); The smaller the wheelbase, the higher the body, the more intense the weight transfer, and the easier it is to shake the tail (and it is easy to roll over! ); The weaker the anti-tilting effect of the front suspension system, the easier it is to swing the tail.

Some people have mentioned a variety of drift modes, which are actually within the above five types.

Tail flick control:

If the handbrake is used for drifting, you should release the handbrake when the car rotates to the angle you want.

The task in the middle of drift is to adjust the posture of the car body. Because the road surface is uneven, the degree of route bending, the cornering characteristics of cars and other factors will often change. Therefore, drivers often have to control the steering wheel, throttle, brake and even clutch (not recommended) in order to make the car follow the route that the driver wants.

Explain the principle first: to make the wheel slide long, we must try to reduce the friction between the wheel and the ground; In order to keep the wheels from slipping, we should increase the friction as much as possible. As mentioned above, the way to reduce friction is to make the wheel rotate too fast or too slow, and reduce the positive pressure between the wheel and the ground. The way to increase friction is the opposite.

Among them, the way to make the wheels rotate too slowly is to step on the foot brake or the hand brake (again: the foot brake acts on four wheels and the hand brake acts on the rear wheel. No matter whether the handbrake acts on cars with other wheels or not, I know all the cars with handbrake.

Pedal braking: all four wheels will slow down, so it is impossible to generalize whether the friction lost by the front wheel is large or the friction lost by the rear wheel is large.

Hand brake: the front wheel will not lose friction while the rear wheel will lose a lot of friction, which is easy to oversteer. Because both the foot brake and the hand brake can slow down, the car will soon stop skidding.

True drift:

However, if you want the wheels to slide for a long distance, the only way is to let the driving wheels idle at high speed, and you must have a car with LSD and enough power to do this. Why are there LSD? Because the car body will tilt when it drifts, the pressure of the outer wheel on the ground will be great, and the pressure of the inner wheel will be corrected. Without LSD, the inner driving wheel will idle and the outer driving wheel will rotate slowly. The friction between the slow-moving wheels and the ground is large, and the side slip of the car will soon stop.

Cars are divided into front drive, rear drive and four-wheel drive, and wheels without driving force cannot idle at high speed. Then the rear wheel of the front drive can't do long-distance sideslip. If the driving wheel (that is, the front wheel) idles at high speed, and the side slip is more than that of the rear wheel, the drift angle will be reduced, so the front driving wheel can't do long-distance drift. Four-wheel drive cars are obviously possible. What about rear drive? The front wheel of the rear wheel drive has no driving force, but the front wheel can swing at a certain angle in the direction of the car body sliding, so the rear wheel drive can also drift a long distance.

The sideslip distance is related to the speed before the sideslip starts. Usually, it will slide slowly and finally stop. However, if the site permits and is well controlled, it can theoretically do infinite sideslip. Because the skidding wheel still has a certain acceleration, the skidding tire is also resisted by the ground. When these two functions are balanced, the speed of the car will not decrease. For example, doughnuts are one kind of infinite drift, but they can also make an infinite drift with a big turning radius.

All the above are methods to control the side slip length of the driving wheel. After knowing these principles, let's talk about it again-

Methods of adjusting body posture:

1. Control the angle of the front wheel, neither too big nor too small, especially the rear drive.

2. Adjust the throttle and brake to make the car tend to accelerate or decelerate, resulting in weight transfer, and control whether the front of the car slides much outward or the rear of the car slides much outward.

3. Use the handbrake again to produce oversteer.

Note: In 2, the effect of refueling with rear-wheel drive (or four-wheel drive with power distribution ratio tending to rear-wheel drive) is not necessarily acceleration. If you refuel too hard, the friction may be reduced because the rear wheel speed is too high, and the rear of the car will slip more outward.

Important note:

Maximum drift angle:

Maximum drift angle-If the included angle between the direction of the car head and the direction of the car body is greater than this angle in the middle of drift, you must stop (if you don't stop, you will crash). Note that it does not include the time when the drift occurs.

For rear-wheel drive vehicles, because the front wheel has no driving force, it can't produce high-speed idle steering and sideslip, so it can only rely on the lateral force facing the front wheel to control the movement of the front wheel. Therefore, the included angle between the head direction and the body movement direction can only be equal to the maximum swing angle of the front wheel at most (the swing angle of the front wheel of different cars is different, and the swing angle of the front wheel of a general car can be about 30 degrees). If it's any bigger, there's no way to get back to normal driving except to stop and start again. Note that the "large-angle drift" generally refers not to the angle between the direction of the car head and the direction of the car body movement, but to the angle marked in red in the attached drawings. The steeper the curve, the greater the angle.

The rear wheel drive also has the situation that the front wheel has insufficient grip and insufficient steering. In this case, the included angle between the head direction and the body movement direction cannot exceed the maximum deflection angle, otherwise it is necessary to stop and resume normal driving.

Because the front wheel can keep the grip of the rear wheel and increase the throttle to make the front wheel slide outward, the maximum deflection angle of the front wheel is very large, which can be close to 90 degrees.

Four-wheel drive because the front and rear wheels can idle at high speed, it is more likely that the front wheels will slip outward when refueling (why? Because the weight is transferred to the rear wheel when refueling, the friction between the front wheel and the ground is small), and the front wheel can swing outward, then the maximum deflection angle of the four-wheel drive is greater than that of the rear drive. (Drift: There is an objection that the drift angle of rear wheel drive is greater than 4WD under the complete frame setting. )

Comparing the three driving forms, the front driver is the easiest to drive and the safest. (DRIIFT: objection, hehe, I think FR is the best to drive, and it really "feels great" when parking)

Drift out of the corner:

End the drift when you come out of the bend, and the way to end it is the same as the way to reduce the drift angle during the drift.

For the front drive,

1. Refueling causes the front of the car to slide outward (because the front drive is basically understeer except when drifting).

2. Correct the front angle by swinging the front wheel outward.

3. You can also put a little throttle after the front wheel swings outward.

Four-wheel drive, 2 is usually necessary, 3 is also effective, 1 is not necessarily effective.

For rear wheel drive, the most important thing is to rely on 2. Depending on the specific situation, weight distribution, driving force distribution, previous drift angle, road conditions and other factors have an impact.

Pay attention to the whole drift process (including the beginning, middle and end), so when preparing to turn, don't point the front of the car at the outside of the road, but point it at the inside, so that when the car slides to the outermost side of the road, the lateral speed is just zero, which is a perfect turn.

What are the basic steps to make sashimi? What are the precautions? Frozen grass carp slices are made by slaughtering fresh grass carp, descaling, removing head and tail, spine, viscera, scraping peritoneum and quick freezing. Every100g of fish contains protein17.9g, fat 4.3g and nutrients such as calcium, phosphorus and iron.

1. Selection of raw fish: Raw fish must be live grass carp or grass carp in a dead stage, and can only be used as raw materials for processing frozen fillets after passing the tail-by-tail inspection. Its freshness is tested by sensory inspection standards: the body surface is shiny, the scales are complete, it is not easy to fall off, the gill color is bright red, the gill filaments are clear, it has an inherent fishy smell, the eyeball is full and protruding, the cornea is transparent, and the muscles are firm, elastic and compact.

2. Technological process: raw fish → selection, cleaning → gill removal → scale removal → viscera removal → fish fillet cutting → salt water fixation → drainage, plate loading → freezing → packaging → refrigeration.

3. Key points of operation: Select grass carp whose weight exceeds 1.5kg and meets the standard for processing grass carp slices, and wash them with clear water to remove mucus and dirt on the fish surface. Put the fish on a clean workbench, and scrape off the scales with the back of a fish knife or a metal descaling tool to avoid damaging the fish skin. Then start from the tail fin of the fish, cut all the way along the spine to the head, and scrape off the black membrane in the internal organs and abdominal cavity. Then turn the fish over, start from the hard-edged caudal fin with spines, cut it to the branchial cover bone as above, cut off the spines, and then cut off the fish head along the branchial cover bone to get a whole fish fillet. You can also cut another knife along the abdomen and process it into two pieces of fish fillets. Rinse the blood and black film in the abdominal cavity of fish fillets with running water to keep their inherent color. The temperature of washing water should be controlled at about 65438 00℃, and ice can be added to cool it if necessary. The washing time should be shortened to no more than 10 minute to reduce the loss of soluble protein and reduce the nutritional value.

Put the washed fish fillets into a clean porous plastic box or bamboo basket and drain the water. Soak the drained fillets in 10% salt water for 10 ~ 20 minutes, then take them out, drain the salt water and put them on a plate. Monomer freezing or 1000 g pan freezing is used for freezing. Immediately after loading, it is sent to the freezer for freezing. The freezing temperature should be below -30℃, and the freezing time should be 8 ~ 12 hours, so that the central temperature of the fillet can be reduced to below-15℃. Take the frozen fish fillets out of the freezing room in time, enter the pre-cooling room, take off the plate, cover with ice, bag and weigh. 1000g fish fillets, one in each bag, with a net weight of 20kg per box. The positive error of weighing shall not exceed 2%, and negative deviation is not allowed. Non-toxic plastic film and carton are used for packaging. After packing, tie it tightly with packing tape. The packaged fish fillets are immediately sent to the refrigerator for refrigeration and transportation.

The temperature of cold storage should be below-18℃, and the temperature change in the warehouse should be controlled within 2℃ to avoid dry consumption and deterioration. Boxed grass carp slices stored in the cold storage room should be stacked separately from other frozen products. Make choke coil outside the box (name, specification, etc. ) clear, neatly stacked. First-in first-out, last-in last-out, reserved passage, convenient for ventilation and access. When the goods are shipped, an insulated car must be used, and the temperature inside the car should be kept below -8℃. When leaving the warehouse or unloading, if broken or scattered boxes are found, they should be replaced or repackaged in time.

4. Quality requirements: the surface of fish fillet is clean, the incision is neat, and the color is the true color of fresh fish. After thawing, the fish is still firm, with the inherent fishy smell of fresh fish and no other peculiar smell.

What are the basic steps of single dyeing? What are the precautions? It is simple and easy to dye the smear with a dye, which is suitable for observing the morphology of microorganisms.

Single dyeing generally goes through five steps: daubing, fixing, dyeing, washing and drying.

The basic steps, skills and precautions of cooking, and then explain 1 hot pot with one or two dishes to dry the water.

2 pour oil

3 onion, ginger casserole

4 put the meat first if there is meat, and put the vegetables directly if there is no meat.

5 pull at will ~

6 Add ingredients

If you need to pour water, pour it in and sip it.

8 chicken essence or monosodium glutamate

9 fire juice or water starch juice

10 delivery ~ ~

I'm from Sichuan. Let me introduce two Sichuan dishes:

Kung Pao Chicken?

Cooking category: stir-fried

Cooking time: ordinary

Ingredients category: pork

Taste: spicy

Suitable for the season: irrelevant

Gourmet: Sichuan cuisine

Kung pao chicken materials:

300 grams of chicken, 50 grams of peanuts, 20 grams of dried red pepper, 2 grams of pepper, 20 grams of soy sauce, sugar, wine, ginger slices, water bean powder and peanut oil.

Kung pao chicken practice:

1. Remove the tendons from the chicken, chop it with a cross knife, dice it, put it in a bowl, add soy sauce, salt and wine to taste, and mix well with water and bean powder. .

2. Make glutinous rice flour with soy sauce, sugar, vinegar, monosodium glutamate, clear soup and water bean powder.

3. Dried red pepper is pedicled and seeded, and cut into 1. 7 cm knot.

4. Soak peanuts in warm water, peel them and fry them. Fry until 70% cooked, add dried Chili and Zanthoxylum bungeanum, stir-fry diced chicken, and add ginger and onion. Cook in the sauce, stir fry quickly, add peanuts, stir fry and serve!

Braised pork slices in brown sauce

Cooking category: stir-fried

Cooking time: ordinary

Ingredients category: pork

Taste: spicy

Suitable for the season: irrelevant

Gourmet: Sichuan cuisine

Sichuan pork material:

400g of pork leg with skin, green garlic sprout100g, 25g of Pixian watercress, and about10g of sweet noodle sauce.

Practice of cooked pork:

Wash the meat, cook it until it is cooked and soft, take it out, let it cool and slice it for later use, and cut the green garlic into sections; Stir-fry the sliced meat in a 60% hot oil pan until it is ear-shaped, stir-fry the chopped Pixian watercress and color it, then stir-fry it with sweet noodle sauce to make it fragrant, season it, turn it over, add onion and garlic, and serve.

What are the basic steps and precautions in the assembly of machine parts (1)? Generally, the sequence of assembly work is opposite to that of disassembly work, that is, the disassembled parts are assembled first, and then the disassembled parts are assembled, which is usually divided into three steps: fitting assembly, part assembly and general assembly.

(2) Matters needing attention are as follows:

A, when assembling, confirm that the parts are qualified, and the iron is clean without burr before assembling;

B. During assembly, clean lubricating oil shall be coated between the surfaces of mutually matched parts (oil-free lubricant shall be coated on the oil-proof device);

C, assembly quality must conform to the technical requirements of installation specifications or drawings;

D, the seal can not have the phenomenon such as oil leakage, water leakage or air leakage;

E after assembly, the correctness and reliability of the cooperation or connection of all parts must be checked according to the technical requirements, and then the test run can be carried out.