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HOWO 371 Concrete Mixer/Marine Gear Shifter Assembly – Japanese-Style Dual-Lever Throttle Controller
The core role in the concrete mixer truck
1. Left lever (controls direction – gear shifting/forward & reverse rotation):
Push forward: Drum rotates forward (starts mixing/loading; prevents cement from settling).
Neutral (center): Drum stops rotating.
Pull backward: Drum rotates in reverse (starts discharging/unloading; expels the cement).
2. Right lever (controls speed – throttle/RPM):
Controls the engine throttle or hydraulic system output.
The further it is pushed, the higher the engine RPM and hydraulic pump output, causing the drum to rotate faster.
Increase the throttle when discharging or washing the drum.
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