Maeda MC405C-3 - Cautions under Cold Weather

Mini-Crawler Crane M A E D A Section 4 – COLD WEATHER OPERATION
1/2019 MC405C-3 4-17
Cautions under Cold Weather
WARNING!
• Remove snow from and defreeze the
slewing gear, boom and winch related parts,
and check the movements before work.
• Warm up enough.
Attempt to operate the operation levers and
switches without enough warm-up causes
the Machine to react dull, and may result in
unexpected accidents.
• Avoid acutely accelerating the engine
during short time after starting the engine.
• Increase the oil temperature of the hydraulic
circuit by relieving the oil pressure (let the
pneumatic oil to escape to the hydraulic oil
tank by raising to above the hydraulic
circuit set pressure) by using operation
lever. Doing so improves the Machine
reactions and prevents improper
operations.
• If the battery fluid is frozen, do NOT charge
battery or start the engine using other
power source.
Such act may cause the battery to catch
fire.
Before charging or starting up using other
power source, defreeze the battery fluid and
check that failures such as battery fluid leak
do not exist.
• After end of the work, wipe off and apply
wraps if substances such as condensation,
snow or mud are stuck to the wire harness,
connector
①
, switches, sensors or similar
part.
If the infiltrated condensation and/or similar
substance freezes, the Machine may
operate improperly upon the next use and
cause unexpected accidents.
Fig. 4-40
Fig. 4-41