Yamaha MM700A Manual page 126

bearing race into the bearing rollers are lubrication
holes.
CA UT10N
Make sure the roller bearing is installed
with the lubrication holes and locating
dowel pinhole positioned as shown in Fig-
w e 71. Incorrect bearing installation
causes bearing failure because of the lack of
lubrication.
d. Slide the bearing onto the main journal with the
dowel pinhole (A, Figure 71)
6. Install the PTO end ball type bearings as follows:
a. Lay the bearings, spacer and oil seal on a clean,
lint-free surface in the order of assembly.
properly positioned before installing the bearings.
c. The locating pin in the outer race of the inner bear-
ing should be on the bearing end nearer the crank-
shaft end.
the end of the crankshaft.
e. Make sure to install the spacer and oil seal between
the bearings.
f. Refer to Ball Bearing Replace~~~ent
NOTE
Heat the ball type bearings to 75' C (167'
in oil before installation. Completely
read Step 5 through before heating and in-
stalling bearings. During bearing installa-
tion, support the cranksha// securely to
install the bearings quickly. I f a bearing
cools and tightens on the crankshaft before
it is completely installed, remove the bear-
ing with the puller and reheat.
g. Heat and install the bearings. Make sure the bear-
ings are fully seated.
Crankshaft Installation
1. Install the coolant pump and oil injection pump
driveshaft as described in this chapter.
2. Fill the outer crankshaft seal lip cavity with a low-tern-
3. Install the oil seal (A, Figure 68) over the flywheel end
of the crankshaft.
4. Position the upper crankcase so it rests on the crank-
case studs.
lubrication holes
and
in Chapter One.
CA UTION
Do not install a pin in the lubrication pas-
sages.
(Figure 72) are installed.
6. Install the bearing locating C ring in the groove of the
outer bearing as shown in Figure 73.
CHAPTER FOUR