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1T19L-7 Firestone Rubber Air Bellow W01-358-9121 Truck Air Spring Bags For Volvo 3130503
Product Description
Model NO.:1T9121 Certification: ISO/TS16949 Position: Front and Rear Type: Suspension Spring Weight: 11kg Packing Size: 27*27*39(cm) Transport Package: Neutral Packaging Origin: China Material: Rubber OEM: Yes HS Code: 87088090000
1T9121 Truck Air Spring Specifications
Top Plate 11.4in (289mm)
Deflated Bellows O.D. 10.6in (270mm)
Bottom Plate Diameter 10.2in (260mm)
Bottom Plate Hole Stud Qty 4
Bottom Stud 1/2-13UNC
Max. Height 21.2in (540mm)
Min.height 7in (180mm)
Compressed Leight 14.2in (360mm)
Piston Mounting Bolt Dimensions Center to Center 7.8in (200mm)
Truck air springs are the core components of the suspension system, and their failures will directly affect driving stability, comfort and safety. The following are common failures, causes and solutions for truck air springs:
1. Leakage (drop in air pressure)
Failure phenomenon:
The vehicle sinks on one side or as a whole after parking.
Frequent inflation is required to maintain normal height.
Possible causes:
Aging, cracking or scratching of the airbag rubber.
Poor or damaged air nozzle seal.
The air pipe (trachea) is broken or the joint is loose.
Solution:
Apply soapy water to the surface of the airbag to find the leak point (the bubbling point is the leak point).
Replace the damaged airbag or repair the air nozzle/pipeline.
2. The airbag is bulging or deformed
Failure phenomenon:
The airbag is partially bulging or twisted, and the shape is asymmetrical after inflation.
The bumpy feeling is aggravated when the vehicle is driving.
Possible causes:
The cord layer (internal reinforcement layer) is broken.
Structural damage caused by long-term overloading or excessive air pressure.
Solution:
Replace immediately! A bulging airbag may burst at any time.
3. Airbag rupture
Fault phenomenon:
Suspension collapses suddenly and the vehicle body tilts severely.
Accompanied by a "bang" explosion sound (in an emergency).
Possible causes:
Piercing by sharp objects (such as metal fragments on the road).
Aging of rubber + extreme load impact.
Emergency treatment:
Use pads to support the frame after parking to avoid damage to other parts.
Do not continue driving before replacing the airbag!
4. Abnormal sound (squeak/friction sound)
Fault phenomenon:
A "squeak" sound is heard when passing over speed bumps or bumpy roads.
Possible causes:
The airbag rubs against the metal base (insufficient lubrication).
The suspension link/bushing is worn, causing the airbag to be misaligned.
Solution:
Check the airbag installation position and apply special silicone grease for lubrication.
Check other suspension parts (such as shock absorbers and swing arms).
5. Abnormal suspension height
Fault phenomenon:
The height of the left and right sides of the vehicle is inconsistent (one side is higher and the other side is lower).
The automatic leveling system fails.
Possible causes:
Height sensor failure.
The distribution valve or solenoid valve is blocked/damaged.
The airbag on one side leaks or the air pressure is uneven.
Solution:
Check the sensor circuit and valve body.
Calibrate the suspension height or replace the faulty parts.
6. Aging/cracks on the rubber surface
Fault phenomenon:
Fine cracks, chapped or powdered on the surface of the airbag.
Possible causes:
Long-term exposure to ultraviolet rays, ozone or oil.
Exceeding the service life (usually 5-8 years or 800,000 kilometers).
Preventive measures:
Clean the airbag regularly and avoid contact with corrosive liquids such as engine oil and diesel.
Try to avoid direct sunlight when parking.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Agent,Exporter
Year Established:
2006
Total Annual:
5999900-6999900
Employee Number:
159~189
Ecer Certification：
Verified Supplier
Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo... Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo...
