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18-3. Change of Gear Oil
Be careful with hot oil, which could cause burns if it contacts your skin.
When you change the oil, be sure to drain it into a container and discard it in accordance
with local laws and regulations.
If the oil emulsifies or if it becomes even slightly less transparent, change the oil
immediately.
Use BONNOC TS680 (or equivalent) as oil.
1.Follow the steps below to remove the old
oil.
[1]Remove the drain plug and drain the old
oil into a container.
[2]Install the drain plug.
2.Open the oil filler cap, and then supply new
oil through the oil filling port until the oil
level reaches the middle of the oil gauge.
The gear box capacity is approximately
3
3.8 dm
(3.8 L).
3.Tighten the oil filler cap securely.
4.On a level surface, check if the oil level is at
the middle of the oil gauge. If necessary,
supply oil.
5.Check underneath the machine for oil
leakage.
− 31 −
Drain plug
Oil filler cap
Oil gauge
18-4. Disassembly of Crank
When disassembling the crank section to replace bearings, exercise care so as not to
have your fingers or hands caught in the crank metal fittings. Right after the crank section
is separated, the respective crank metal fittings will rotate by their worn weight.
When crank metal fittings are set out of position, vibration and noise will be generated,
possibly damaging the machine.
Respective crank metal fittings are attached in a 45-degree turned state to ensure right
timing. Follow the assembling timing ① - ⑧ shown in Timing chart.
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