Maeda MC405C-3 - Precautions During Maintenance

Section 5 – GENERAL MAINTENANCE INFORMATION AND PRECAUTIONS Mini-Crawler Crane M A E D A
5-4 1/2019 MC405C-3
Precautions During Maintenance
No Unauthorised People
Do not admit anyone other than necessary
workers during maintenance. And post a guard
as necessary.
Be especially careful in case of a polishing,
welding work, or digging work.
Measures upon Finding Abnormality
During Inspection
• Always repair whenever an abnormality is
found during inspection.
Attempt to use without repairing the defect may
cause bodily accidents.
• Ask us or our sales service agency for repair
depending on the failure type.
Do Not Drop Tool or Part Inside
Machine
• Do not drop any bolt, nut or tool inside the
machine when inspecting while opening the
inspection port or tank replenishment port.
Dropped object may damage the machine or
cause the machine to operate improperly and
thus may cause accidents. If dropped, always
retrieve.
• Do not keep anything unnecessary for the
inspection in your pocket.
Noise Caution
Large noise in the surroundings may cause
hearing difficulty or deafness.
Put on ear covers or earplugs before long time
noise exposure for instance an engine
maintenance.
Work by at Least Two Persons during
Maintenance with Engine Running
Fig. 5-8
To prevent accidents, do not attempt
maintenance when the engine is running.
Always observe the followings in case of
maintaining with the engine running for
unavoidable reason.
• One should seat in the operation seat, and
keep checking each other while ensuring that
the engine can be stopped any time.
• Be especially careful when working near a
rotating part which may entangle.
• Do not touch operation levers. Before handling
an operation lever for unavoidable need,
always give a sign to other person and let
him/her evacuate to a safe place.
• Do not contact with the alternator belt or other
part that severs upon contact with human body
or tool.
Cautions When Working Below Machine
Fig. 5-9
• Park the car over a level and firm location, and
fully retract and lower the boom.
• Before the maintenance below the machine,
extend the outriggers maximum so the machine
lifts. When doing so, insert support platforms
(height increasers) below front and rear of the
machine to stabilise the machine.
Cautions When Working Above Machine
Fig. 5-10
• Tidy the footing to avoid falling and always
observe following precautions during
maintenance above the machine.
• Do not spill oil or grease.
• Do not sprawl the tools.
• Beware of the footing when walking.