Yanmar 4JH2E Service Manual page 222

Chapter
7
Reduction and Re,.ersing Gear
3. Oper'!-tion and Maintenance
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4JH Series
3. Operation and Maintenance
3-1 Lubeoil
(1) Oil level
The oil level should be checked each month and must
be maintained between the groove and the end of the
dipstick. The groove indicates the maximum oil level
and the end of the dipstick is the minimum oil level.
When checking the oil level with the dipstick, do not
screw in the oil filler screw; it should rest on top of the
oil filler hole.
Groove
(2) Oil change
Oil filler screw
Maximum oil level
Minimum oil level
Change the oil after the first 50 hours of operation,
and every 150 hours of operation thereafter. When
adding oil between oil changes, always use the same
type of oil as is in the marine gearbox.
(3) Recommended brands of lube oil
Supplier
Brand name
SHELL
SHELL DEXRON
CAL TEX
TEXAMATlC FLUID (DEXRON)
ESSO
ESSO ATF
MOBIL
MOBIL ATF220
B.P. (British Petroleum) B.P. AUTRAN DX
3·2 Precautions
Do not stop the shift lever halfway between the neutral and
forward or reverse positions. The lever must be set to the
neutral position or shifted into forward or reverse in a
single motion.
3·3 Side cover
The internal shifting mechanism has been carefully aligned
at the factory. Improper removal of the side cover can
cause misalignment. If the side cover must be removed,
proceed as follows:
-Before removing the cover, put alignment marks on the
side cover and the case to facilitate accurate installation.
-When installing the side cover, put the shift lever in
neutral so that the cam lobe on the shift lever engages the
groove on the internal shift mechanism. When the cam
Printed in Japan
A0Al029-9002
7-7
lobe and groove are engaged properly there will be no
clearance between the body and the side cover. Use pack-
ing when installing the side cover.
-After making sure that the cam lobe and notches are
aligned properly, securely tighten all the bolts. After
tightening the bolts, move the lever back and forth. Positive
contact should be felt and a click should be clearly audible
as the gears shift; otherwise, the cam and notch are not
properly engaged, and the cover must be loosened and
readjusted until proper engagement is achieved.
Notch
Cam
Clearance
Groove
Side cover