Section 5 –
GENERAL MAINTENANCE INFORMATION AND PRECAUTIONS
Mini-Crawler Crane M A E D A
5-8 1/2019 MC405C-3
Check the Service Meters
Read the service meters daily to check for any
maintenance item that reached the obligatory
maintenance period.
Use Genuine Parts for
Replacement
Always use Maeda genuine parts as specified in
the parts catalogue for part replacement.
Use Pure Grease
Always use Maeda pure grease. The viscosity of
grease must conform to specifications according
to ambient temperature.
Use Clean Oil and Grease
Always use clean oil, grease, and container to
keep impurities out of them.
Keep the Machine Clean
Keep the machine clean to facilitate the detection
of a malfunction. Especially keep the grease
nipple, breather, and oil level gauge (oil access
door) clean to prevent impurities from finding
their way into the machine.
Handle Water and Oil at Adequate
Temperature
Drainage, drain oil, and exhaust filter will be at
elevated temperatures immediately after the
machine comes to a stop. Replace drainage,
drain oil, and filter only after they drop in
temperature for safety.
If the oil is cold, raise the temperature of the oil to
approx. 20 to 40°C.
Check Drain Oil and Oil Filter
For replacement of oil and filter, check the drain
oil and exhaust filter to make sure no a
considerable amount of metal powder or foreign
objects is present.
Cautions for Lubrication
Do not remove the strainer to lubricate if it is
attached to the lubrication opening.
Protect Oil from Impurities
Avoid dust when inspecting and replacing the oil
to keep impurities out of the oil.
Attach a Warning Tag
When draining coolant and oil, always attach a
warning tag to the travel control for the
prevention of accidental engine starting.
Follow Safety Precautions
Safety precautions provided on the machine
should always be followed when using the
machine.
Cautions for Weld Repair
• Power off the machine. (Turn OFF the start
switch)
• Do not continuously apply 200V or greater.
• Ground the machine within 1 metre from the
welding point.
• Be sure to disconnect the connectors of the
radio or remote control system, moment limiting
indicator, and moment limiting converter.
• Remove the negative terminal (-) of the battery.
• Make sure no sealing or bearing is present
between the welding point and the grounding
point.
Potential damage to sealing may occur due to
sparks if disregarded.
• Do not ground around the boom pin or the
hydraulic cylinder.
Potential damage to a plated section may occur
due to sparks if disregarded.
Keep from Flame
Always clean the parts with noncombustible
cleaning agent or light oil.
Keep the machine from flame when using light
oil.
Keep the Attachment Surface
Clean
Be sure to clean the attachment surface after
removing a part to which the O-ring and gasket
sealing are attached.
Replace the part with a new one with the O-ring
and gasket reattached.
Empty Your Pockets
Always empty your pockets before performing
inspection and maintenance of the machine in a
downward direction with the cover opened.
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