Lingong Heavy Machinery Work Platform AS2646

Ensure the platform is completely lowered

Drive two wheels on the same side of the machine up on a 1.37×7.9in (3.5×20cm) block

Lift the platform to the specified height from the table

Did the platform stop moving and the tilt alarm sound at 120 times per minute?

Slowly move the control handle to operate drive forward and then drive reverse

Is the drive function disabled in both forward and reverse directions?

Platform Elevation and Pothole Guard Deployment

Lift the platform to the specified height

Did the pothole guards deploy automatically?

Press one side of the pothole guard

Press the other side of the pothole guard

Did the pothole guard remain immobile?

Platform Lowering and Pothole Guard Stowage

Check that all buttons/switches on the PCU panel function normally

Ensure the PCU emergency stop switch is secure

Check if all switches operate properly

Check for damaged wiring harnesses

Ensure the PCU wiring harness connector is secure

Check if the PCU wiring harness connector is not damaged

Check if the PCU wiring harness is crimped or damaged

Check if the lowering solenoid valve is secure and not damaged

Check for loose or damaged bolts or abnormal noise

Check if any circlip or washer on fork arms are damaged, worn, or missing

Check if the emergency lowering system operates properly

Check if the platform, scissor stack arm, and chassis are deformed or have broken welds

Check if the paint is excessively chipped or peeling off

Check if the decals and safety signs are correct and legible

Check if the manuals are with the machine

Check if machine performance and limit switches operate properly

Ensure the enable switch on the control handle is not pressed

Move the control handle forward or backward. Are all lift functions non-operational?

Lift Function Selector and Enable Switch Test

Press the lift function selector button

Press the enable switch on the control handle

Move the control handle backward. Does the platform elevate and the pothole guards deploy?

Platform Control Handle Release Test

Release the platform control handle