Maeda MC405C-3 - Crane Stowing Operation; Outrigger Setting Operation; Outrigger Stowing Operation

Mini-Crawler Crane M A E D A Section 4 – DESCRIPTION ON OUTRIGGER AND CRANE SAFETY DEVICES
1/2019 MC405C-3 4-35
Outrigger Setting Operation
Standard Operation Sequence,
Machine Status
Display and Warning Activation of Safety Devices
Set the outriggers.
1. Verify that there is no load on
the hook
2. Travelling lock lever at "LOCK"
position
3. Extend the outriggers.
• Rotate the outrigger rotary and
secure at the specified position
with position pin.
• Work selector switch:
"Outrigger"
• Outrigger extension switch:
"OUT"
• Extension lamps on display
panel ON
[Outrigger un-set warning lamp
flashes]
[Working status lamp (red) ON]
Outrigger interlock device
• All the outrigger operations stop
if any of the four extension
lamps does not light up
4. Set the outriggers
• Outrigger grounding switch:
"OUT"
• Check the level with the level
• Setting lamps on display panel
ON
[Outrigger un-set warning lamp
flashes]
[Working status lamp (red) ON]
5. Pick & Carry switch: "OFF"
When the machine tilts for 3
degrees or more during outrigger
setting operation
• Warning buzzer sounds
continuously
Crane inclination alarm device is
activated
Crane Stowing Operation
Standard Operation Sequence,
Machine Status
Display and Warning Activation of Safety Devices
Operate the machine to take the
boom stowing posture.
• Fully retract the boom
• Boom horizontal stowing
position
• Boom slewing stowing position
• Boom stowing lamp on display
panel ON
Outrigger interlock device
• All the outrigger operations stop
if the boom stowing lamp does
not light up
Outrigger Stowing Operation
Standard Operation Sequence,
Machine Status
Display and Warning Activation of Safety Devices
Stow the outriggers.
1. Set and stow the outriggers.
• Work selector switch:
"Outrigger"
• Outrigger grounding switch:
"ON"
• Setting lamps (red) on display
panel flash
[Outrigger un-set warning lamp
flashes]
[Working status lamp (red) ON]
Crane interlock device
• All the crane operations stop if
any of the extension lamps and
setting lamps (green) (total of
eight) does not light up
2. Extend and stow the
outriggers.
• Outrigger extension switch]
"ON"
• Rotate (Stow) the outrigger
rotary and secure at the
specified position with position
pin.
• Stop the engine.
• Extension lamps (red) on
display panel flash
[Outrigger un-set warning lamp
flashes]
[Working status lamp (red) ON]
When the machine tilts for 3
degrees or more during outrigger
stowing operation
• Warning buzzer sounds
continuously
Crane inclination alarm device is
activated