Lubrication Guide MLC300
F2280-22
Published 07-21-21
NOTE 1 Lower the boom to horizontal when checking oil
level in Drums 1 and 6.
NOTE 2 Travel the crawlers so the centerline through the
plugs M16a and M16b is horizontal.
NOTE 3 Crawlers are greased manually only when the
crane does not have the optional crawler auto
lube system.
Item Description Required Service
Every 200 Hours of Operation or Monthly (whichever comes first)
M10 Swing Gear Box Sight Gauge (1 or 2 places) Check level. Should be at level indicated on decal next to
sight gauge
M11 Swing Gear Box Oil Fill and Breather Plug (1 or 2
places)
Fill each to proper level with gear oil.
M12 Drum Bearing (1 fitting, each drum) Grease.
M13 Drum Gear Box Sight Gauge (1 each drum) Check level. Should be at middle of sight gauge (see
NOTE 1).
M14 Drum Gear Box Oil Filling / Breather Plug (1 each
drum)
Fill each to proper level with gear oil.
M14a Drum Gear Box Optional Oil Fill Plug
M15 Engine Clutch Lever and Bearing (4 fittings - 1 top and
3 bottom)
Grease.
M16a Crawler Gearbox Oil Level Plug (1 each crawler)
(see NOTE 2)
Check level. Should be up to plug opening.
M16b Crawler Gearbox Oil Level Plug (1 each crawler) Fill each to proper level with gear oil.
M17 Dosing Module Filter (Tier 4F engine only) Inspect and replace as needed according to engine
manual.
M18 DEF Tank Filter (40 micron suction filtration) (Tier 4F
engine only)
Inspect and replace as needed according to engine
manual.
M19 Not Used
M20a Crawler Front Roller (1 fitting each crawler).
Grease (see NOTE 3).
M20b Crawler Intermediate Rollers (2 fittings, 15 places each
crawler)
M20c Top Roller (2 fittings, 2 places each crawler)
M21 Drum Motor Shaft Level Plug (each free fall drum) Check level. Should be up to plug opening.
M22 Drum Motor Shaft Oil Filling / Breather Plug (each free
fall drum)
Fill to proper level with gear oil.
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