Maeda MC285C-3 - Installing and Removing the Electric Unit; Required Tools; Required Hoisting Attachments; Required Parts (Standard Equipment or Accessories)

M A E D A Mini-Crawler Crane Section 4 –INSTALLING AND REMOVING THE ELECTRIC UNIT
1/2019 MC285C-3 4-121
INSTALLING AND
REMOVING THE ELECTRIC
UNIT
The electric unit on this machine can be removed
if length is an issue—for example, when
transporting in an elevator or when transporting to
sites where weight restrictions apply.
WARNING!
• If the electric unit is removed or installed by
two persons, make sure both understand
specifics of the work in question and use
predetermined signals while working
together. Inadequate signaling may result in
serious accidents, including accidents
involving contact with moving parts.
• Any work involving removing, installing, or
moving the electric unit should be
performed on a firm, level surface to ensure
balance. If the electric unit is removed,
installed, or moved on sloped or uneven
surfaces, accidents such as the electric unit
toppling may occur.
• Make sure the wire rope and shackles used
to hoist the electric unit have sufficient
strength to withstand the mass (weight) of
the electric unit.
• Before hoisting the electric unit, always
insert three shackles securely in the
hoisting bracket.
• Attach the electric unit securely to the drop
prevention hook on the frame of the main
unit.
Serious accidents may result if the hook
comes off and the electric unit falls.
• Make sure the electric unit transport casters
are inserted in the correct places and
securely fastened with nuts.
Serious accidents may result if the casters come
loose and the electric unit topples.
CAUTION: The electric unit can be removed
and reinstalled using the crane on the
machine itself, but care is required to adjust
the hoisting attachments to ensure the hook
does not hit the machine body.
Required tools
• 10 mm across flats wrench, socket or socket
wrench
• 13 mm across flats wrench, socket or socket
wrench
• 17 mm across flats wrench, socket or socket
wrench
• 24 mm across flats wrench x 2
Required hoisting attachments
• Wire rope (x 3): Recommended size
At least φ6 mm x 1,200 mm length
• Shackles (x3): Recommended size
hole diameter φ13 mm
Required parts (standard equipment or
accessories)
Short connectors (x 3): Fitted to connectors
removed on machine side
Electric unit weight: 170 kg
Removing the Electric Unit
WARNING: Before removing the electric unit,
crawl underneath the machine and disconnect
the connectors.
If the machine is unsteady and moves at this
point, place blocks underneath the machine at
the front and rear.
1. Remove the four retaining bolts (2) on the
electric unit cover (1).
Fig. 4-319