Maeda MC815C, Operation Manual, Page: 333 / 426

323
[3] OIL REPLACEMENT IN SLEWING REDUCTION GEAR CASE
The drain plug of the slewing reduction gear case is located directly underneath the
machine.
When draining oil, install outriggers as necessary to raise the machine, and go under
the machine. If the machine is unstable and sways, place supports (stands) under the
front and rear sides of the machine to stabilize it.
CAUTION
• See “INSPECTION AND MAINTENANCE 6.1 USE OF LUBRICATING OIL ACCORDING TO
TEMPERATURES” for the oil to be used.
• Use seal tape, etc. at the thread of the drain plug and filler plug to stop the oil leak and
securely tighten the plugs after changing the oil.
• Oil drain pan: Prepare a container for at least 2 liters.
• Oil replacement quantity in slewing reduction gear case: 1.5 L
1. Place the machine on a level surface.
2. See “OPERATION 2.14 OUTRIGGER SETTING OPERATION” to set the outriggers to raise
the machine when necessary.
Check the following before you enter under the
machine.
• Using a level, check to make sure that the machine
is installed on a level surface.
• When using the outriggers, place them at their
“maximum extension”.
• Then, place a firm block between the ground and the
crawler to prevent the machine from lowering.
3. Remove the slewing ring cover.
4. Remove the filler plug (F) of slewing reduction gear
case.
5. Go under the machine and place a drain pan directly
underneath the drain plug (P) of the slewing reduction
gear case to receive drained oil.
6. Turn the drain plug (P) slowly to avoid splashing oil on
yourself, and drain oil.
7. Check the drained oil and if it contains an unacceptable
amount of metal particles or foreign matter, contact us
or our sales service agent.
8. Install and tighten the drain plug (P) securely.
9. Inject the gear oil from the filler plug (F) hole of the
slewing reduction gear case.
NOTES
Refill the oil up to the center point of the sight gauge (G) .
10. Securely tighten the filler plug (F) after changing the oil.
11. Install the slewing ring cover.
12. When the outriggers are used, see “OPERATION 2.24
OUTRIGGER STOWAGE OPERATION” to stow all the
outriggers.