Drottningholms Entreprenad is a medium-sized transport contractor located in the city of Stockholm, transporting and contracting engineering business. Transport fleet consisting of 10 trucks, including a Volvo (Volvo) and nine Scania (Scania), of which seven equipped with Allison fully automatic transmissions. Peter Faerden, CEO of the company, explained that Drottningholms Entreprenad purchased the first truck equipped with Allison transmission nine years ago and added three new Allison 4000 series automatic transmissions in April 2014. The box's new Scania G490 6x2x4 truck. “We have always been indifferent to the driver’s needs. For this reason, we tend to buy the Allison transmission. Taking into account the driver’s needs, we have almost no staff turnover. The driver does not like to manually shift because the manual transmission not only Affecting health can also cause damage to the vehicle's powertrain, Faerden said. According to Faerden, the new car will be fitted with Allison fully automatic gearboxes until the remaining trucks are to be updated. "I think there is no reason to use other gearboxes in urban areas. Longer driveline service life, lower maintenance costs, and less downtime completely offset the slightly higher initial investment," he said. Allison's reliability is the primary factor considered by the working team. Both new cars are equipped with rear cranes and serve as service vehicles to help transport molds, stones and pipes to and from the site. "If trucks don't work, we will be at a loss," Faerden said. "I really can't think of any problems with using the Allison transmission in the past nine years." Vehicle: Scania G490 6x2 x 4 Vehicles: Scania G490 6x2 x 4 Engine: 360kW (490 hp), 2500 Nm - Euro 6 Engine: 360 kW (490 hp), 2500 Nm – Euro 6 engine Transmission : Allison 4000 SeriesTM fully automatic transmission Transmission: Allison 4000 Series Automatic Transmission Total weight: Up to 60 tons Total weight: The maximum weight is 60 tons
Installation steps for SANY hydraulic cylinder seals
For Sany Cylinder Seal Kit,For Sany Swing Motor Seal Kit,Hydraulic Pump Seal Kit For Sany,Hydraulic Pump Seal Kit Sany Safe Seal Technology Co., Ltd. , https://www.sprsealkits.com
Allison 4000 Series Automatic Transmission 
Scania truck equipped with Allison automatic gearbox 
Truck equipped with Allison Automatic Transmission 
1. Preparation: Clean the working surface and seals, and check if the seals are damaged or deformed.
2. Apply lubricant: Apply a layer of lubricant to the seal and sealing groove.
3. Install the seal: Place the seal into the sealing groove, ensuring that the seal is fully embedded in the groove.
4. Install O-ring: Install the O-ring above the seal, ensuring that the O-ring is fully inserted into the groove.
5. Install the piston rod: Insert the piston rod into the seal and O-ring, ensuring that the piston rod fits tightly with the seal and O-ring.
6. Install the sealing sleeve: Place the sealing sleeve on the piston rod to ensure that it fits tightly with the piston rod.
7. Tighten the nut: Use the nut to fix the sealing sleeve on the hydraulic cylinder, ensuring that the sealing sleeve is secure.
8. Check the sealing effect: Operate the hydraulic cylinder and check if there is any leakage in the sealing element. If there is any leakage, reinstall the sealing element.