Section 5 – PERIODIC MAINTENANCE Mini-Crawler Crane M A E D A
5-54 1/2019 MC405C-3
7. Place a drain pan (H) directly under the
elbow (E) to receive drained oil.
Fig. 5-113
8. Use the hexagonal wrench (C) to remove the
oil inspection plug (G). The gear oil is
drained from the winch reduction gear case
upon plug removal.
9. Remove the elbow (E) after the gear oil is
completely drained from the winch reduction
gear case. Put in the drain plug (P) and
secure it.
10. Install the cover (1), and secure it with the
four mounting bolts (2).
11. Pump the gear oil through the oil inspection
plug (G) with the use of the oil pump (D).
Fig. 5-114
NOTICE: Pump the gear oil until it exudes from
the oil inspection plug.
12. Put in the oil inspection plug (G) and secure
it upon completion of oil replenishment.
NOTICE:
• Perform a proper break-in with no object
hoisted for 5 minutes after oil replacement.
• Wipe off the oil completely if spilled.
13. See "OUTRIGGER STOWING" on page 4-
49 to stow the outrigger.
Replace Oil in Travelling Motor
Reduction Gearcase
CAUTION:
• For more information on the which oil to be
used, see "LUBRICATING OIL" on page 5-
14.
• 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-litre 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.
Fig. 5-115
NOTICE: This machine is equipped with two
drain plugs (P). Either drain plug must be
positioned directly underneath the machine.
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).
9. Put in the upper drain plug (P) and oil
inspection plug (G), and secure them after
oil replenishment.
NOTICE: Wipe off the oil completely if spilled.
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