Maeda MC305C-3 - 8 B P Recautions During Maintenance

Section 5 – GENERAL MAINTENANCE INFORMATION AND PRECAUTIONS Mini-Crawler Crane M A E D A
5-4 3/2019 MC305C-3
18BPrecautions 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.
• Contact us or our sales service agency.
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.