Mini-Crawler Crane M A E D A Section 5 – PERIODIC MAINTENANCE
1/2019 MC405C-3 5-53
7. Put in the drain plug (P) and secure it.
Fig. 5-109
8. Supply the gear oil to the slewing reduction
gear case through the filler plug (F).
NOTICE:
• The gear oil must be filled from the filler cap, up
to the midpoint of the site gauge (G).
• Wipe off the oil completely if spilled.
9. Put in the filler plug (F) and secure it after oil
replacement.
10. See "OUTRIGGER STOWING" on page 4-
49 to stow the outriggers.
Replace Oil in Winch Reduction Gear
Case
WARNING! Oil will be at elevated
temperatures immediately after engine
operation, which urges you not to unplug the
inspection port and drain port. Unplug the
port with the oil cold.
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
• Hexagonal wrench for plug removal: 8mm
• Quantity of oil for replacement: 0.5L
1. Place the machine on a level surface.
2. See "OUTRIGGER SETTING" on page 4-42
to set the outriggers.
3. Remove the four mounting bolts (2) and
remove the cover (1).
Fig. 5-110
4. Rotate the winch slowly to a point where the
oil inspection plug (G) and drain plug (P)
come in sight.
(1) Stop the winch at a point where the oil
inspection plug (G) can be seen through
the post side inspection hole (A).
(2) Stop the winch at a point where the
drain plug (P) of the winch reduction
gear case can be seen above the
inspection hole (B).
Fig. 5-111
5. Use the hexagonal wrench (C) to remove the
drain plug (P).
Fig. 5-112
6. Install the elbow (E) to the screw hole of the
drain plug (P) for draining oil.
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