Section 5 – PERIODIC MAINTENANCE
Mini-Crawler Crane M A E D A
5-42 1/2019 MC285C-3
• Fuel pan: Prepare a container of at least 1 L.
1. See “Removing Machinery Cover” on page
5-14 and remove the machinery cover.
2. Remove the fuel filter (2) from the holder (1).
Fig. 5-71
3. Loosen the clamps (5) of fuel hoses (3) and
(4) connected to the fuel filter, and disconnect
the fuel hoses.
Fig. 5-72
4. Connect the fuel hoses and to the new fuel
filter to prevent them from falling with the
clamps.
5. Insert the fuel filter into the holder to secure it.
NOTE: After inserting the fuel filter into the holder,
lightly shake the fuel filter to check that it is firmly
secured.
6. After replacing the fuel filter, bleed the fuel
system.
NOTE: Turn the key switch to ON to operate fuel
pump and wait up to 5 minutes for the air to be
released.
7. See “Installing Machinery Cover” on page
5-14 and install the machinery cover.
Replace Hydraulic Oil Return Filter
WARNING! Various parts are at elevated
temperatures immediately after engine
operation.
Do not replace the filter immediately. Wait
until the oil is cooled.
WARNING! The oil may spout out when the
filler cap of the hydraulic oil tank is removed.
Loosen the filler cap mounting bolts so that
the filler cap is raised a little to allow the
release of inner pressure, then remove the
mounting bolts and the filler cap.
WARNING! Securely tighten mounting bolts of
the oil filler cap after refilling the oil.
If the mounting bolts are loose the filler cap
may come off during the operation, and the
hot oil may spout out of the pan, causing
burns.
CAUTION: See “LUBRICATING OIL” on page
5-10 for the oil to be used.
CAUTION: Be sure to put the machine in the
travelling posture when checking the oil level.
If you check the oil level in the working
posture, you judge the oil level to be low and
feed the oil excessively.
CAUTION: After replacing the filter of
hydraulic oil, do not start the engine for a
while until piping and hydraulic equipment are
filled with the oil.
CAUTION: Avoid the oil exceeding the level
point (red point) of the level gauge.
When the oil goes beyond the correct level, it
may spout out from the air breather during
travelling or crane operation.
Be careful not to let any foreign substance go
CAUTION: into the filler opening when refilling
the oil.
1. Place the machine on a level surface.
2. See “TRAVELLING POSITION” on page 4-24
and put the machine in the “Travelling
posture”.
3. See “Removing Machinery Cover” on page
5-14 and remove the machinery cover.
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