T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
WG9100340056 WG9100340057
Sinotruk HOWO
| Attribute | Specification |
|---|---|
| Official Name | Automatic Brake Slack Adjuster – Rear Right Side |
| Common Names | Brake Adjusting Arm, S-Cam Actuator Link, Slack Adjuster |
| OEM Brand | SINOTRUK (China National Heavy Duty Truck Group) |
| Part Number | WG9100340057 |
| Position | Rear Axle – Right-Hand Side (RH) |
| Spline Count | 19 Splines (standard for STR/AC16/HC16 axle camshafts) |
| Center-to-Center Distance | ~145 mm (from mounting hole to spline bore center) |
| Length × Width × Thickness | ~210 mm × 110 mm × 70 mm |
| Weight | Approx. 3.2 kg – 3.5 kg |
| Material | High-strength alloy forged steel with surface anti-corrosion treatment |
| Internal Mechanism | Worm gear + ratchet clutch system; automatically advances upon release after braking |
| Adjustment Type | Automatic (self-compensating) — adjusts only when wear exceeds threshold |
| Function | Converts linear pushrod motion into rotational torque to drive S-cam |
| Operating Environment | Exposed to dust, moisture, road salt, and thermal cycling |
| Origin | Jinan, Shandong Province, China |
Name1
Name2
Confirm correct model: Use SINOTRUK EPC system to verify compatibility with your VIN/chassis.
Inspect new unit: Check for stripped splines, damaged threads, bent lever arm, or loose mounting bracket.
Clean all mating surfaces: Remove rust, dirt, old grease, and debris from S-cam shaft and brake chamber rod.
Ensure correct orientation: This is a right-hand unit only.
Remove Old Adjuster:
Disconnect pushrod from clevis.
Pull out splined shaft from S-cam.
Install New Adjuster (WG9100340057):
Slide splined end onto S-cam shaft until fully seated.
Secure with retaining clip or bolt.
Reconnect Pushrod:
Reattach to clevis pin.
Apply light tension without pre-loading.
Check Free Play:
Manually rotate adjuster back and forth — should move smoothly with “click” sound indicating ratchet engagement.
Final Inspection:
Operate brakes several times at low pressure (~4 bar).
Verify automatic adjustment action during release phase.
| Attribute | Specification |
|---|---|
| Official Name | Automatic Brake Slack Adjuster – Rear Right Side |
| Common Names | Brake Adjusting Arm, S-Cam Actuator Link, Slack Adjuster |
| OEM Brand | SINOTRUK (China National Heavy Duty Truck Group) |
| Part Number | WG9100340057 |
| Position | Rear Axle – Right-Hand Side (RH) |
| Spline Count | 19 Splines (standard for STR/AC16/HC16 axle camshafts) |
| Center-to-Center Distance | ~145 mm (from mounting hole to spline bore center) |
| Length × Width × Thickness | ~210 mm × 110 mm × 70 mm |
| Weight | Approx. 3.2 kg – 3.5 kg |
| Material | High-strength alloy forged steel with surface anti-corrosion treatment |
| Internal Mechanism | Worm gear + ratchet clutch system; automatically advances upon release after braking |
| Adjustment Type | Automatic (self-compensating) — adjusts only when wear exceeds threshold |
| Function | Converts linear pushrod motion into rotational torque to drive S-cam |
| Operating Environment | Exposed to dust, moisture, road salt, and thermal cycling |
| Origin | Jinan, Shandong Province, China |
Name1
Name2
Confirm correct model: Use SINOTRUK EPC system to verify compatibility with your VIN/chassis.
Inspect new unit: Check for stripped splines, damaged threads, bent lever arm, or loose mounting bracket.
Clean all mating surfaces: Remove rust, dirt, old grease, and debris from S-cam shaft and brake chamber rod.
Ensure correct orientation: This is a right-hand unit only.
Remove Old Adjuster:
Disconnect pushrod from clevis.
Pull out splined shaft from S-cam.
Install New Adjuster (WG9100340057):
Slide splined end onto S-cam shaft until fully seated.
Secure with retaining clip or bolt.
Reconnect Pushrod:
Reattach to clevis pin.
Apply light tension without pre-loading.
Check Free Play:
Manually rotate adjuster back and forth — should move smoothly with “click” sound indicating ratchet engagement.
Final Inspection:
Operate brakes several times at low pressure (~4 bar).
Verify automatic adjustment action during release phase.
