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HOWO MAX7W Gear shift lever assembly 16-speed overdrive lightweight version self-centering AZ9900241084
Pneumatic & Gearshift Control System Overhaul BOM
| No. | Part Number | Part Name (EN) | Qty | Core Function & Technical Requirements | Maintenance & Replacement Recommendation |
|---|---|---|---|---|---|
| 1 | AZ9900241084 | "Smart Shift" (Wuyou) Gearshift Control Lever Handle Assembly (Overdrive) | 1 | Lightened self-returning structure; features integrated touch control switch and wiring harness for 16-speed manual-auto clutch system. | Core item to be replaced. Replace entirely if electronic buttons fail, contacts wear out, or self-returning spring loses tension. |
| 2 | AZ9900241083 (Ref) | "Smart Shift" (Wuyou) Gearshift Control Lever Handle Assembly (Direct Drive) | 1 | Sister part matching direct-drive transmissions. | Check transmission nameplate to choose between 1084 (Overdrive) or 1083 (Direct Drive). |
| 3 | Cable Specific | Gearshift Control Flexible Shaft Cable Assembly (Select / Shift Dual Cables) | 2 | Mechanical push-pull transmission cables connecting the lever to the gearbox. | Replace if cables stretch, become stiff, or outer protective sheath cracks, causing sluggish shifting. |
| 4 | WG2203240015 (Ref) | Transmission Top Cover Pneumatic Follower Valve / Shifting Air Valve | 1 | Receives pneumatic signals from the handle to assist high/low range (splitter) switching. | Replace if air leakage occurs at the transmission cover during shifting. |
| 5 | Chassis Standard | Cab Floor Shifting Lever Rubber Dust Boot | 1 | High-elasticity rubber dust cover isolating engine bay noise, heat, and road mud from entering the cab. | Wearable rubber part; recommended to replace along with the control handle to maintain cab sealing. |
Physical Side-Mounted Function Switches
1. Splitter Switch (High/Low Range or Half-Gear Splitter): Typically a slider switch on the side of the gear lever used to control gear splitting (e.g., toggling between odd and even gears or fine-tuning half-gear shifts, such as moving from 1st to 2nd gear).
2. Mode Switch Button (A/M Button): A button for instantly toggling between fully automatic mode (Automatic) and manual mode (Manual).
3. Function Lock/Activation Button: Some versions feature an integrated safety switch to prevent accidental operation; this must be pressed to disengage the neutral lock.
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