Section 5 – PERIODIC MAINTENANCE
Mini-Crawler Crane M A E D A
5-54 3/2019 MC305C-3
2. See "OUTRIGGER SETTING" on page 4-36
to rotate the rotary of the "outrigger (1)"
outward.
3. Slowly rotate the winch until the plug (P) is
visible, and once the plug (P) is visible, set
the plug (P) to the lowest position.
Fig. 5-95
4. Place a drain pan directly under the plug (P)
to receive drained oil.
5. Use the hexagonal wrench to remove the
plug (P). The gear oil is drained from the
winch reduction gear case upon plug
removal.
6. Once the gear oil is fully drained out of the
winch reduction gear case, rotate the winch
slowly until the plug (P) hole is visible through
the hole above the pin.
Fig. 5-96
7. Replenish the standard amount (0.75 L) of
gear oil using an oil pump or similar tool
through the plug (P) hole.
NOTICE: Wipe off the oil completely if spilled.
8. Put in the plug (P) and secure it upon
completion of oil replenishment.
9. See "OUTRIGGER STOWING" on page 4-45
to stow the "outrigger (1)".
Replace Oil in Travelling Motor
Reduction Gearcase
CAUTION:
• See "LUBRICATING OIL" on page 5-14 for
which oil to be used.
• Use seal tape, etc. at the thread of the filler
plug to stop the oil leak and securely tighten
the plug after refilling with the oil.
• Oil drain pan: A 1-L container
• Quantity of oil for replacement: 1.0L
1. Place the machine on a level surface.
2. Move the machine forward and backward to
position it immediately above the drain plug
(P) of the travelling motor reduction gear
case.
NOTICE: This machine is equipped with two drain
plugs (P). Either drain plug must be positioned
directly underneath the machine.
Fig. 5-97
3. Place a drain pan directly under the lower
drain plug (P) to receive drained oil.
4. Remove the upper drain plug (P) and oil
inspection plug (G).
5. Remove the lower drain plug (P) slowly to
drain the oil, keeping from contact with
draining oil.
6. Check the drained oil. If check finds a
considerable amount of metal powder and
foreign objects, contact our sales service
agency.
7. Put in the lower drain plug (P) and secure it.
8. Supply the gear oil to the travelling motor
reduction gear case through the upper drain
plug hole (P).
NOTICE: Pour in the gear oil until the oil comes
out of the oil level check plug (G).
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