Mec 4046SE - Maintenance and Inspection Requirements

Page 29 SE
AC
Slab Series - Service & Parts Manual
March 2022Section 10 - Maintenance
Press the lift function select button. Raise the platform approximately 12 in / 0.3 m.
Result: The diagnostic display will show code 18 and an alarm sounds. The machine is
functioning properly.
Result: The diagnostic display does not show code 18 and the alarm does not sound.
Replace the Down Limit Switch.
Raise the platform until the pothole guards are deployed.
Result: The diagnostic display does not show code 18 and the alarm does not sound. The
machine is functioning properly.
Result: The diagnostic display shows code 18 and an alarm sounds. Replace the Down Limit
Switch.
Set the Maintenance Locks (see the Introduction portion of this manual).
DEATH OR SERIOUS INJURY HAZARD!
NEVER PERFORM WORK OR INSPECTION ON THE MACHINE WITH
THE PLATFORM ELEVATED WITHOUT FIRST BLOCKING THE SCISSOR
ASSEMBLY WITH THE MAINTENANCE LOCK.
Turn the key switch to the off position.
Disconnect the platform controls from the ECU cable.
Securely install the connector of the ECU cable into the platform control cable.
Working at the platform, securely install the connector of the platform controls into the platform
control cable.
Securely connect the two wires of the down limit switch to wire harness.
Close and install the switch cover.
Turn the key switch to platform control.
Raise the platform and return the Maintenance Locks to the stowed position.
Lower the platform to the stowed position.
Up Limit Switch
Set the Maintenance Locks (see the Introduction portion of this manual).
DEATH OR SERIOUS INJURY HAZARD!
NEVER PERFORM WORK OR INSPECTION ON THE MACHINE WITH
THE PLATFORM ELEVATED WITHOUT FIRST BLOCKING THE SCISSOR
ASSEMBLY WITH THE MAINTENANCE LOCK.
Open the limit switch house cover from the chassis.
While raising the platform from the ground controls, push in the roller of the up limit switch to
activate the limit switch.
Result: The platform stops raising. The machine is functioning properly.
Result: The platform continues to raise. Inspect or replace the Up Limit Switch.
Install the limit switch house cover to chassis.
Raise the platform and return the Maintenance Locks to the stowed position.
Lower the platform to the stowed position.
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