Yamaha XV19SX(C), Service Manual, Page: 341 / 494

TRANSFER GEAR CASE
5-92
3. Check:
• Transfer gear oil pump operation
Rough movement
→
Repeat steps (1) and
(2) or replace the defective part(s).
EAS25510
CHECKING THE OIL PIPES
1. Check:
• Oil pipes
Damage
→
Replace.
EAS25520
ASSEMBLING THE TRANSFER GEAR OIL
PUMP
1. Lubricate:
• Transfer gear oil pump inner rotor
• Transfer gear oil pump outer rotor
• Transfer gear oil pump shaft
(with the recommended lubricant)
2. Install:
• Transfer gear oil pump shaft “1”
(to the transfer gear oil pump housing “2”)
• Washer “3”
• Pin “4”
• Transfer gear oil pump inner rotor “5”
• Transfer gear oil pump outer rotor “6”
• Transfer gear oil pump cover “7”
NOTE:
When installing the inner rotor, align the pin in
the oil pump shaft with the groove in the inner ro-
tor.
3. Check:
• Transfer gear oil pump operation
Refer to “CHECKING THE TRANSFER
GEAR OIL PUMP” on page 5-91.
EAS25530
INSTALLING THE TRANSFER GEAR CASE
1. Install:
• Spacer “1”
NOTE:
Install the spacer with its groove “a” towards the
drive pulley.
2. Install:
• Middle driven shaft “1”
• Middle drive gear “2”
• Primary chain “3”
(into the transfer gear case)
• Drive pulley nut
NOTE:
• Install the primary chain with its blue link “a”
facing outward.
• Install the middle drive gear “2” with its cham-
fered side facing “b” the transfer gear case.
Inner-rotor-to-outer-rotor-tip
clearance
Less than 0.12 mm (0.0047 in)
Limit
0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump-housing
clearance
0.10–0.15 mm (0.0039–0.0059 in)
Limit
0.22 mm (0.0087 in)
Oil-pump-housing-to-inner-and-
outer-rotor clearance
0.04–0.09 mm (0.0016–0.0035 in)
Limit
0.160 mm (0.0063 in)
Recommended lubricant
Engine oil
T
R
.
.
Oil pump housing screw
4 Nm (0.4 m·kg, 2.9 ft·lb)
3
2
1
5
6
7
(6)
4
E
1
a