M A E D A Mini-Crawler Crane Section 5 – INSPECTION
3/2019 MC305C-3 5-31
Check / Refill Oil Level in Slewing
Reduction Gear Case
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.
1. Stop the machine at levelled location.
2. Go under the machine and check the site
gauge (G) for checking oil level in the slewing
reduction gear case. Verify that the oil is filled
up to the centre of the site gauge (G).
Fig. 5-44
3. If there is not sufficient oil, refill with the gear oil
using the following procedure.
(1) See "OUTRIGGER SETTING" on page
4-36 to rotate the rotary of the "outrigger
(2)" outward.
(2) Remove the filler opening plug (F) at the
back of the post and pour in oil from the
filler opening.
NOTICE: Pour in the oil to the centre of the site
gauge (G) from the filler opening.
Fig. 5-45
(3) After refilling with the oil, install the filler
plug (F) and securely tighten the plug.
(4) See "OUTRIGGER STOWING" on page
4-45 and rotate the rotary of the "outrigger
(2)" inward and stow.
Check / Refill Oil Level in Travelling
Motor Reduction Gear Case
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 oil
level check plug to stop the oil leak and
securely tighten the plug after refilling with
the oil.
1. Move the machine forward and backward so
that one of the two drain plugs (P) of the
travelling motor reduction gear case will
come right under.
2. Remove the oil level check plug (G) of the
travelling motor reduction gear case to check
if the oil will come out of the plug hole.
3. If there is no sufficient oil, remove the top
drain plug (P) and pour in gear oil from the
plug hole.
NOTICE: Pour in the gear oil until the oil comes
out of the oil level check plug (G).
4. Install the oil level check plug (G) and upper
drain plug (P) and securely tighten them after
checking and refilling with the oil.
Fig. 5-46
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