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Sitrak Steering Crossbar Assembly
Sitrak Steering Crossbar Assembly
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Sitrak ABS Wheel Speed Sensor (Front Axle Section One Side Wheel Side)
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Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)

Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)
Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)
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What is the Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)

  • The Sitrak Drum Brake Assembly with specifications φ400×150, featuring a self – adjusting arm and an electronic wear alarm device, is a remarkable piece of engineering designed to ensure optimal braking performance and safety for Sitrak vehicles.
  • The brake drum is the core of this assembly. It is precisely engineered to provide a large frictional surface area, enabling efficient heat dissipation and reliable braking force. The size of φ400×150 is carefully selected to balance braking power and durability, ensuring that it can handle the heavy – duty requirements of Sitrak trucks.
  • On the right side of the assembly, we have the Air chamber bracket (right). This bracket securely holds the air chamber in place, which is responsible for converting compressed air into mechanical force to activate the brakes. The Front right brake assembly (φ400×150, electronic wear alarm device) is directly connected to the air chamber. It contains all the necessary components for braking, and the electronic wear alarm device continuously monitors the wear of the brake linings. Once the wear reaches a critical level, it sends an alarm signal to the driver, ensuring timely maintenance.
  • The Automatic brake clearance adjusting arm (right) is a key feature of this assembly. It automatically adjusts the brake clearance, ensuring consistent braking performance over time. This not only improves safety but also reduces the need for manual adjustments, saving time and effort for maintenance personnel.
  • Similarly, on the left side, the Air chamber bracket (left) performs the same function as its right – hand counterpart, holding the air chamber securely. The Front left brake assembly (φ400×150, electronic wear warning device) also provides reliable braking, with the electronic wear warning device keeping track of the brake lining wear. The Automatic brake clearance adjusting arm (left) works in harmony with its right – side counterpart to maintain proper brake clearance across the vehicle.
  • Several small but important components contribute to the integrity of the assembly. Gaskets are used to prevent leaks and ensure a tight seal between different parts. Spring washers are employed to provide a locking effect, preventing the loosening of bolts due to vibrations. Hexagon head bolts, such as the Hexagonal head bolt M14*1.5, are used to fasten various components together firmly. The 45°Joint type oil cup M10×1 is used for lubrication, ensuring smooth operation of moving parts within the brake assembly.
  • In summary, the Sitrak Drum Brake Assembly (φ400×150, Self – Adjusting Arm, Electronic Wear Alarm Device) is a comprehensive and reliable braking solution. With its well – designed components and advanced features, it offers superior braking performance, safety, and ease of maintenance for Sitrak vehicles.

Product Parameters of Sitrak Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)

AC40414505516 Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Electronic Wear Alarm Device)
No. Part Number Part Name English  Quantity
1 WG4005455508 Air chamber bracket (right) 1
2 WG4005455553 Front right brake assembly (φ400×150, electronic wear alarm device) 1
3 WG4005456212 Automatic brake clearance adjusting arm (right) 1
4 WG4005456211 Automatic brake clearance adjusting arm (left) 1
5 WG4005455504 Gasket 2
6 WG4005455507 Air chamber bracket (left) 1
7 Q40312 Spring washers 8
8 Q151B1230TF2 Hexagon head bolt 8
9 WG4005415507 45°Joint type oil cup M10×1 2
10 WG4005455552 Front left brake assembly (φ400×150, electronic wear warning device) 1
11 Q40314 Spring washer 4
12 ZQ151B1445TF6 Hexagonal head bolt M14*1.5 4
13 WG4005455503 Brake drum 2
WG4005455553 Front right brake assembly (φ400×150, electronic wear warning device)
No. Part Number Part Name English  Quantity
1 AZ4005455553_2 Front right brake assembly(φ400×150,wear alarm)(Qingdao Haitong) 1
2 AZ4005455553_3 Front right brake assembly(φ400×150,wear alarm)(Jiangsu Hengli) 1
3 WG4005455553/1 Front Right Brake Assembly(φ400×150,Wear Alarm)(Shandong Lead) 1
WG4005455553/1 Front right brake assembly (φ400×150, wear alarm) (Shandong Lead)
No. Part Number Part Name English  Quantity
1 WG4005455501+001/1 Brake Shoe (I) 2
2 WG4005455501+003/1 Bushings-Brake Shoe 2
3 WG4005455553+001/1 Brake drum base plate right 1
4 WG4005455501+005/1 Shoe shaft fixing screw 2
5 WG4005455501+006/1 Wire lock wire 1
6 WG4005455501+007/1 Shoe Shaft 2
7 WG4005455501+008/1 Return spring 1
8 WG4005455522+001/1 Right camshaft 1
9 WG4005455501+010/1 Shaft retaining ring 2
10 WG4005455501+011/1 Return spring retaining pin 2
11 WG4005455501+012/1 Brake base plate oil seal assembly 1
12 WG4005455501+013/1 Brake Base Plate Bushing 2
13 WG4005455501+015/1 Clip ring-roller shaft 2
14 WG4005455501+016/1 Roller 2
15 WG4005455501+017/1 Roller shaft 2
16 WG4005455501+018/1 Oil cup 45°M10X1 1
17 WG4005455501+019/1 Dust cover 1
18 WG4005455521+002/1 Camshaft washer ring 1
19 WG4005455501+021/1 Clogging-dust cover 2
20 WG4005455501+022/1 Spring washers 4
21 WG4005455501+023/1 Hexagon head bolts 4
22 WG4005455501+025/1 Adjustment washers 1
23 WG4005455501+026/1 Flexible retaining rings for shafts-Camshafts 1
24 WG4005455501+028/1 Friction plates 4
25 WG4005455541+006/1 Roller Oil Seals 4
26 WG4005455541+007/1 O-ring 4
27 WG4070453011+004/1 Rivets 20
28 WG4005455552+002/1 Spring washers 2
29 WG4005455552+003/1 Nuts 2
30 WG4005455552+004/1 Flat pin 2
31 WG4005455552+021/1 Wear alarm assembly (H653) 1
WG4005455552 Front left brake assembly (φ400×150, electronic wear warning device)
No. Part Number Part Name English  Quantity
1 AZ4005455552_2 Front left brake assembly(φ400×150,wear alarm)(Qingdao Haitong) 1
2 AZ4005455552_3 Front left brake assembly(φ400×150,wear alarm)(Jiangsu Hengli) 1
3 WG4005455552/1 Front left brake assembly(φ400×150,wear alarm)(Shandong Lead) 1
WG4005455552/1 Front left brake assembly (φ400×150, wear alarm) (Shandong Lead)
No. Part Number Part Name English  Quantity
1 WG4005455501+001/1 Brake Shoe (I) 2
2 WG4005455501+003/1 Bushings-Brake Shoe 2
3 WG4005455552+001/1 Brake base plate left 1
4 WG4005455501+005/1 Shoe shaft fixing screw 2
5 WG4005455501+006/1 Wire lock wire 1
6 WG4005455501+007/1 Shoe Shaft 2
7 WG4005455501+008/1 Return spring 1
8 WG4005455521+001/1 Left camshaft 1
9 WG4005455501+010/1 Shaft retaining ring 2
10 WG4005455501+011/1 Return spring retaining pin 2
11 WG4005455501+012/1 Brake base plate oil seal assembly 1
12 WG4005455501+013/1 Brake Base Plate Bushings 2
13 WG4005455501+015/1 Clip ring-roller shaft 2
14 WG4005455501+016/1 Roller 2
15 WG4005455501+017/1 Roller shaft 2
16 WG4005455501+018/1 Oil cup 45°M10X1 1
17 WG4005455501+019/1 Dust cover 1
18 WG4005455521+002/1 Camshaft washer ring 1
19 WG4005455501+021/1 Clogging-dust cover 2
20 WG4005455501+022/1 Spring washers 4
21 WG4005455501+023/1 Hexagon head bolts 4
22 WG4005455501+025/1 Adjustment washers 1
23 WG4005455501+026/1 Flexible retaining rings for shafts-Camshafts 1
24 WG4005455501+028/1 Friction plates 4
25 WG4005455541+006/1 Roller Oil Seals 4
26 WG4005455541+007/1 O-ring 4
27 WG4070453011+004/1 Rivets 20
28 WG4005455552+002/1 Spring washers 2
29 WG4005455552+003/1 Nuts 2
30 WG4005455552+004/1 Flat pin 2
31 WG4005455552+021/1 Wear alarm assembly (H653) 1
AC40418800102 Slave axle hub and master pin grease
No. Part Number Part Name English  Quantity
1 190007380213 Grease 12
2 WG9007380001 HP-R Grease 124
WG9007380001 HP-R Grease
No. Part Number Part Name English  Quantity
1 WG9007380001+001 Extreme Pressure Lithium Complex Grease（HP-R）0.8㎏ 1
2 WG9007380001+002 Extreme Pressure Lithium Complex Grease（HP-R）1.8㎏ 1
AH40TG311.2234 H653 Front Axle Assembly(880/2370-Φ335,R292/124-φ26,Self-aligning Arm,ABS,Wear Alarm)
No. Part Number Part Name English  Quantity
1 AH40TG311.2234 H653 Front Axle Assembly(880/2370-Φ335,R292/124-φ26,Self-aligning Arm,ABS,Wear Alarm) 1
AH40TG311.2234 H653 Front Axle Assembly(880/2370-Φ335,R292/124-φ26,Self-aligning Arm,ABS,Wear Alarm)
No. Part Number Part Name English  Quantity
1 711-#4310-0322 ABS wheel speed sensor (front axle part/one side of wheel) 2
2 AC40413605500 Diaphragm type brake air chamber(20”,L=194) 1
3 AC40414105509 Front axle assembly(H153,880/2370-Φ335,R292/124-φ26,ABS) 1
4 AC40414305502 Steering cross tie rod assembly 1
5 AC40414505516 Drum brake assembly (φ400×150, self-adjusting arm, electronic wear alarm device) 1
6 AC40418800102 Slave axle hub and main pin grease 1

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