Air Spring Bellows Rear Airbag Suspension For Bus Truck Accessories 1314278 1348121 481002 VKNTECH 1S8121

Air Spring Bellows Rear Air Suspension Bag for bus truck accessories 1314278 1348121 481002

OEM Reference

FAQ

Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 100% advanced payment as the first order. After long-term cooperation, T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?
A: EXW, FOB CFR, CIF

Q4. How about your delivery time?
A: Generally, it will take 30 days after receiving your advance payment. If we have a steady relationship, we will stock the raw material for you. It will reduce your waiting time. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q7: How about the quality of your product?
A: Our products are certified to ISO9001/TS16949 and ISO 9000:2015 international quality standards. We have very strict Quality Control Systems.

Q 8.WHAT IS YOUR WARRANTY TERM?
A:There is a 12months warranty for our export products has run outfrom the date of the shipment.If warranty ,our customer should pay for the replacement parts.

Q9 .CAN I USE MY OWN LOGO AND DESIGN ON PRODUCTS ?
A:YES,OEM is welcomed. 4.I CAN NOT FIND OUT THE ITEMS WHAT I WANT FROM YOUR WEBSITE,CAN YOU OFFER THE PRODUCTS I NEED?
A: YES.One of our service term is sourcing the products that our customers need,So please tell us the details information of the item.

Warning and Tips

Maintenance of the air springs, Vehicle Check-List

•  Check the air lines and devices of leakage and that they turns freely.
•  Check the bellows bearing for damage, correct fastening, deformation, sharp edges.
•  Check the shock absorbers for operation and impermeability as well as tightness and bearing.
•  Periodically, check nuts and bolts for proper torque. For specific recommendations see manufacturer's manual.
•  Check axle suspension, trailing arms and rods for wear. 
•  Check height control valve to see that it is functioning properly. A properly maintained valve will save unneeded maintenance expense.
•  Routine inspection of all of the above according to manufacturer's instructions, will extend the life of your vehicle and reduce your overall maintenance expense. 

Air Spring Installation

1. Before you start installing air springs, make sure you have all the necessary tools and equipment to perform the repair safely.
2. Familiarize yourself with the suspension on which you are performing the repair by reviewing the manufacturers service guide.
3. If you are in doubt about something, ask for assistance from a qualified suspension specialist, the suspension manufacturer or the air spring manufacturer; This can save you a lot of time and aggravation later in the job.

Important tips to remember when installing a new unit

• Check levelling valve, linkage and transmission parts for wear and damage and if necessary replace the damaged parts.

• Check that the shock absorber for leakages and take a shock absorber test. A defective shock absorber must be replaced.

• Once the air lines are disconnected, check their entire length for cracks or other damage. Replace worn parts.

• With the air spring removed, other parts of the air suspension become more accessible. Check for wear or damage of the frame hangers, trailing arm bushings, torque rods, the trailing arms and the air spring mounts. When it is necessary, also replace parts.

• Check bearing for air spring bellow for external damage, deformation, sharp edges and correct fastening.

• Before installing the new unit, clean the air spring mounting plates to ensure proper attachment to the suspension.

• Always use new attaching bolts for the installation and observe the tightening torques. Never use old bolts, because these can fall out.

• Check the linkage of the levelling valve to see that it is functioning properly. Under load, the linkage should move from the neutral position up to the intake position. This lets air into the springs, which brings the arm back to the neutral position. This lets air into the springs, which brings the arm back to the neutral position. That opens the exhaust valve, allowing air to escape until the arm returns to the neutral position. Then check the driving level.