Page 25 SE
AC
Slab Series - Operator’s Manual
November 2022Section 7 - Operating Instructions & Functions Test
4046SE and 4555SE Machines: Setting The Maintenance Lock
ART_5144
Maintenance Locks
Set
Set
ART_5145
Maintenance Locks
There are two Maintenance Locks on these machines. Both must be set
whenever work or inspection is being performed on the machine.
1. Raise the platform approximately 13 ft / 4m, just high enough to rotate the
Maintenance Locks into place.
2. Lift the ladder-end Maintenance Lock, move it to the center of the scissor
arm, then rotate it down to a vertical position. Use the machine entry
ladder to reach the rear Maintenance Lock.
3. Lift the front-end Maintenance Lock, move it to the center of the scissor
arm, then rotate it up to a vertical position.
The Front End Maintenance Lock must engage the
scissor section above it.
DO NOT set it so that it hangs down.
1. Lower the platform until the Maintenance Locks rest lightly on the scissor
link cross tubes. Keep clear of the Maintenance Locks when lowering the
platform.
Stowing The Maintenance Locks
ART_5146
Maintenance Lock
ART_5147
Maintenance Locks
Stowed
BOTH Maintenance Locks must be stowed before
lowering the platform.
DO NOT attempt to lower the platform with one
maintenance lock in place.
1. Raise the platform approximately 1 ft / 0.3 m higher so that the
Maintenance Locks clear the scissor link cross tubes.
2. Slide the ladder-end Maintenance Lock to the side and rotate it stowed
position. Use the machine entry ladder to reach the rear Maintenance
Lock.
3. Slide the front-end Maintenance Lock to the side and rotate it stowed
position.
4. Lower the platform.
Keep clear of the scissor linkage when lowering.
If a Maintenance Lock requires adjustment to stow it correctly, stop the
lowering function. Adjust the maintenance lock while stationary, then return to
the lowering function.
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