PERIODIC MAINTENANCE
118
JH Series Operation Manual
1. Put a pan under the drain cock
(Figure 1, (2))
to catch fuel.
2. Open the drain cock and drain water
and sediment. Close the drain cock
when the fuel is clean and free of air
bubbles.
Changing the Engine Oil and
Replacing the Engine Oil Filter
Element
The engine oil on a new engine becomes
contaminated from the initial break-in of
internal parts. It is very important that the
initial oil replacement is performed as
scheduled.
It is easiest and most arailable to drain the
engine oil after operation while the engine
is still warm.
WARNING
Burn Hazard
If you must drain the engine oil while it
is still hot, stay clear of the hot engine
oil to avoid being burned. Always wear
eye protection.
1. Turn the engine off.
2. Remove the engine oil dipstick.
Attach the oil drain pump (if equipped)
and pump out the oil.
For easier draining, remove the engine
oil fill cap. Dispose of used oil properly.
NOTICE
• Prevent dirt and debris from
contaminating engine oil.
Carefully clean the dipstick and the
surrounding area before removing the
dipstick.
• Always be environmentally
responsible.
3. Remove the engine oil filter
with a filter wrench (turn
counterclockwise).
Figure 2
Note: 4JH45/4JH57 shown.
4. Install a new filter element and tighten
by hand until the seal touches the
housing.
5. Turn filter an additional 3/4 turn
clockwise with a box wrench. Tighten to
20 to 24 N
·
m (177 to 212 in.-lb).
6. Fill with new engine oil.
.
NOTICE
Never mix different types of engine oil.
This may adversely affect the lubricating
properties of the engine oil.
Never overfill. Overfilling may result in
white exhaust smoke, engine overspeed
or internal damage.
7. Perform a trial run and check for oil
leaks.
057148-01X00
3JH40_4JH45_4JH57_4JH80_4JH110_EN_OPM.book 118 ページ ２０２２年９月２２日 木曜日 午後６時１７分
