Malfunction reason & troubleshooting for trailer suspension
Inflexible rotation for Trunnion Block
1 Possible causes by Overload badly;
Solution: Do not overrun the Rated Axle load
2 The U-bolt is tightened too much
Solution: Tighten the U-bolt to Rated Torque
3 Insufficient lubricating grease for Trunnion Block
Solution: Fill in sufficient lubricating grease
4 The Bronze Bushing is worn out badly
Solution: Replace the Bronze Bushing
The Bronze Bushing is worn out too fast
1 Possible causes by Overload badly;
Solution: Do not overrun the Rated Axle load
2 Insufficient lubricating grease for the Bronze Bushing
Solution: Fill in sufficient lubricating grease
3 Impact strength is too high
Solution: Try to avoid impacting to the axles
The U-bolt & Nut is easy to out of shape
1 Possible reason: It’s not tightened in strict conformity to Rated Torque
Solution: Tighten the Nut to Rated Torque
2 Overload badly
Solution: Do not overrun the Rated axle load
3 There is Scratch on the surface for U-bolt
Solution: Replace the U-bolt
The Tire is deflective worn out
1 Possible reason: The tolerance for Wheel base is big
Solution: Regulate the wheel base
2 U-bolt is loose
Solution: Tighten the Nut to Rated Torque
3 Leaf spring is blocked into Spring Housing (lubrication is bad or Spring cushion is worn out)
Solution: If the Spring cushion is worn out, replaced it, or increase the lubricating grease.
FAQ
Q1. What is your terms of packing?
A: Generally, goods are sealed in ploy bags and packed in cartons and pallet or wood cases.
Q2. What is your terms of payment?
A: T/T (deposit + balance 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 25 to 60 days after receiving your advance payment. 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 for free charge if we have ready parts in stock, but the customers have to pay the courier cost.
Q7. How do you make our business long-term and good relationship?
A: We provide our clients with one-stop service, from specific component to final assembled products, solving various problem for different clients all over the world.
