Yamaha F4B, Руководство по обслуживанию

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How to use this manual
Manual format
The format of this manual has been designed to make service procedures clear and easy to under-
stand. Use the following information as a guide for effective and quality service.
• Parts are shown and detailed in an exploded diagram and are listed in the component list (see
a
in the following figure for an example page).
• The component list consists of part names and quantities, as well as bolt and screw dimensions
(see
b
in the following figure).
• Symbols are used to indicate important aspects of a procedure, such as the grade of lubricant and
the lubrication points (see
c
in the following figure).
• Tightening torque specifications are provided in the exploded diagrams (see
d
in the following fig-
ure), and in the related detailed instructions. Some torque specifications are listed in stages as
torque figures or angles in degrees.
• Separate procedures and illustrations are used to explain the details of removal, checking, and
installation where necessary (see
e
in the following figure for an example page).
TIP:
For troubleshooting procedures, see Chapter 4, “Troubleshooting.”
8 -1
LOWR
Lower unit
Lower unit
s k r a m e R y t ’ Q e m a n t r a P . o N
2 r e v o C 1
6 M 1 t l o b t n i o j t f i h S 2 20 mm
1 t n i o J 3
1 t n i o J 4
1 w e r c s k c e h C 5
3 t e k s a G 6
1 w e r c s g n i h s u l F 7
2 l e w o D 8
1 n i p r e t t o C 9
1 t u n r e ll e p o r P 0 1
1 r e h s a W 1 1
1 r e ll e p o r P 2 1
1 r e c a p S 3 1
14 Lo w er case mo u nting b olt 2 M6 40 mm
1 r e h s a w k c o L 5 1
6 M 1 t l o B 6 1 20 mm
1 e d o n A 7 1
A
1
1
2
3
4
23
8
8
23 22
21
19
19
5
6
11
14
14
1 8
6
17
15
16
13
12
11
10
9
16 N ·m (1.6 kgf·m, 11. 8 ft·l b )
15 N ·m (1.5 kgf·m, 11.1 ft·l b )
11 N ·m (1.1 kgf·m, 8 .1 ft·l b )
9 N ·m (0.9 kgf·m, 6.6 ft·l b )
9 N ·m (0.9 kgf·m, 6.6 ft·l b )
9 N ·m (0.9 kgf·m, 6.6 ft·l b )
7
6
20
11 N ·m (1.1 kgf·m, 8 .1 ft·l b )
A
L-transom model
8 -15
LOWR
Lower unit
TIP:
W hile t u rning the dri v e shaft clock w ise, p u sh
do w n on the w ater p u mp ho u sing and install
w ater p u mp ho u sing.
8 . Install the plates
m
and r ubb er seal
n
.
Checkin g the lower unit for air
leaka g e
1. Install ne w gaskets
a
, the drain scre w
b
and the fl u shing scre w
c
.
2. Tighten the drain scre w
b
and fl u shing
scre w
c
to the specified tor qu e.
3. Install the special ser v ice tool
d
.
4. Apply the specified press u re to check
that the press u re is maintained in the
lo w er u nit for at least 10 seconds.
NOTICE: Do not over pre ss urize the
lower unit. Otherwi s e, the oil s eal s
could be dama g ed.
5. If the specified press u re cannot b e
maintained, check the dri v e shaft,
propeller shaft, and r ubb er seal for b ends
or damage, and check the shift rod
r
ubb er seal for damage or w ear.
A ss emblin g the exten s ion (L-
tran s om model)
1. Install the bu shing
a
and circlip
b
.
Drain scre w
b
:
9 N ·m (0.9 kgf·m, 6.6 ft·l b )
Fl u shing scre w
c
:
9 N ·m (0.9 kgf·m, 6.6 ft·l b )
n
m
m
c
a
b
a
Leakage tester
d
: 90 8 90-06 8 40
Holding press u re:
9 8 .0 kPa (0.9 8 kgf/cm 2 , 14.2 psi)
Dri v er rod L3
c
: 90 8 90-06652
N eedle b earing attachment
d
:
90 8 90-06615
d
c
d
a
a
c
d
b
e
b
c d
a

Safety while working / How to use this manual