HG 2195-2001 Aircraft Tire Use and Maintenance HG2195-2001 Standard Download decompression password: www.bzxz.net

[CS 83. 160. 01
Record number: 10093—2002
Standards of Chemical Industry of the People's Republic of China
HG 2195—2001
Replaces HG21951991
Service and maintenance for aircraft tyre2002-01-24 Issued
2002-07-01 Implementation
Issued by the State Economic and Trade Commission
All technical contents of this standard are restrictive. This standard replaces 11(2195-1991≤Aircraft Tire Use and Maintenance 3. The main changes of this standard compared with HG2195-1991 are as follows: 1. In addition to the temperature requirements for the tire filling, the requirements for the storage period of aircraft tires have been added; 2. The requirements for nitrogen in aircraft tires have been added; 3. The requirements for replacing aircraft tires according to the use conditions have been added; 4. In addition, the requirements for adjusting and replacing tires have been added. This standard is issued by the State Administration of Petroleum and Chemical Industry Quality Policy and Regulations. This standard is approved by the State Economic and Trade Commission and issued by the Shandong Aviation Tire Standard Chemical Technical Committee. The main references of this standard are: School of Materials Science and Engineering, Beiyang Second Rubber Industry Research Institute, Guangxi Branch of Southern Aviation Research Company.
Main references of this standard: Su Rongwen, Guan Weizhong, Zhang Renshan, Qian Ban, the previous standards replaced by this standard are: -H 2-1
1 Scope
Use and maintenance of aircraft tires
HG2195—200F
This standard specifies the maintenance, inspection, assembly, inflation and maintenance requirements of aircraft tires (hereinafter referred to as special tires). This standard is applicable to aircraft tires.
2 Normative references
The following documents are cited in this standard and become the references of this standard. All documents with the same date and time shall be used as references. All subsequent amendments (excluding errata) shall be used as references. The latest version of the standard is not applicable to the following standards: GB9745 Aircraft tire grease (e0vJSO33241)
GH/T9746 Aircraft tire series
CB/T13652 City tire surface quality
3 Requirements
3.1 Storage of tire grease
3.1.1 Wheel grease should be stored in In the spare parts room, the preparation room should have good ventilation conditions and avoid direct sunlight. 3.1.2 The tires should be placed in the warehouse or at least 1 meter away from the noise and heat source to prevent local heating of the tires. They should not be mixed with oils, items, chemicals and other items that are easy to deteriorate. 3.1.3 The tires should be placed in a single layer along the driving surface and should not be placed flat or in a sequence. The stored tires should be rotated at least once a quarter.
3.1.4 The tires should be stored separately from the production and storage. The first produced and the first used should be used first. 3.1.5 The storage period of tires shall be in accordance with the provisions of GB9745. 3.2 Inspection and assembly of tires
3.2.1 Before tyre assembly
3.2.1.1 The specification level and rated speed of the tire must comply with the applicable model; 3.2.1.2 The inflation volume and rated load of the tire shall comply with the provisions of GB/T?4G; 3.2.1.3 The surface quality of the tire shall comply with the requirements of GH/1:3332. 3.2.2 Assembly of tires
3.2.2.1 The assembly area shall be kept clean and free of oil stains. When tyring, all kinds of debris shall be prevented from entering the area. 3.2.2.2 Special equipment and tools shall be used to prevent the tire from being damaged during tyre assembly. 3.2.2.3 When assembling tires with inner tubes, slightly slide the right side of the tire on the surface of the inner tube and place the valve stem at the "light spot" of the outer tube.
3.2.2.4 When assembling large inner tube tires, carefully check whether the tire seal layer and the rim seal are damaged, and make sure that the "light spot" of the tire is 180" away from the light spot on the rim.
3.2.3 Inflation of tires
3.2.3.1 The tires should be inflated with air, and the air should not contain oil or water. 1
HG2195—2001
3.2.3.2 When inflating tires with inner tubes, in order to prevent the inner tube from breaking, , when starting to inflate, you should slowly select the correct route. Allow the inner pressure to expand for 15 minutes, and then continue to inflate to the specified internal pressure. It must not be under-pressured or over-pressured. 3.2.3.3 When inflating a bare inner tube tire, do not inflate the tire to the full set internal pressure. After parking in a narrow temperature range for 1 hour, refill the tire to the set internal pressure. Then park it under the edge of the room for 24 hours. The rate of decrease in internal pressure should not be greater than 5%: 3.2.3.4 After the tire is inflated, its internal pressure must be measured with a pressure gauge. The inflation tolerance is 15%. 3.3 Use and maintenance of tires
3.3.1 For tires used on airlines, the tires should be inspected before each flight. When the inspection finds any of the following conditions: The tires should be replaced. wwW.bzxz.Net
) The tread, sidewall and pattern will be cracked or deep into the carcass layer. b)
There are non-surface bubbles on the sidewall, shoulder and shoulder. The carcass layer is exposed.
When the lateral groove moves from one pattern block to another pattern groove, if the groove is: 1) More than 4101s at the base
2) More than 4mm outside the base and no tire is replaced, it is allowed to return to the base: 3) More than 5mm outside the base
All the delamination and the circumferential cracks at the bottom of the groove have passed after the return. The tread has been reinforced. The slits/scratches on the tread block have extended to the bottom of the tread block. The tread has a length greater than the tread block and has reached the tread groove. The slits on the tire or shoulder have penetrated into the main cord layer. The diameter of the slash is greater than 3mm and has penetrated into the entire cord layer. Inspection found that the decrease in the tire inflation pressure was caused by the melting of the rim heat. m
"In case of takeoff or abnormal landing, overheating of the wheel and contact with chemicals or oil, if there is a retreading requirement, the wheel should be replaced when the following conditions are found in the inspection to facilitate retreading. 3.3.2
If the tire without the reinforcement layer is half worn, the wheel should be replaced immediately. If the tire with the reinforcement layer is worn, the wheel should be replaced later. a
Within the time limit, the total length of the incision is still greater than 25 m, and the tire body layer has not been jumped. b)
3.3.3 The runway or ground where the aircraft passes should be kept at a safe level to prevent stones and other debris from scratching the tire. 3.3.4 In the case of positive belt, the aircraft should avoid long-term traction to prevent the tire from rupture due to excessive heat generation. 3.3.5 When the tire is under working load, the internal pressure of the tire will naturally generate a force of 4% of the initial internal pressure. At this time, it is not allowed to deflate. If it is not released, it should be supplemented with air. When the tire is inflated under load, its internal pressure should be greater than the specified no-negative internal pressure. 3.3.6 When the tire is used at a high altitude, it may rise. At this time, it is not allowed to reduce the pressure. 3.3.7 During the loading period, the inflation pressure of the tires should be kept within the specified range. If the loading period exceeds one month, the tires should be rotated at least one month to prevent the tires from being deformed locally and affecting the safety of use. 3.3.8 When the tires are in use, they should be kept away from oil pollution. If the tires are stained with oil, they should be cleaned in time.
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