Yanmar 4JH45 Operation Manual page 80

PERIODIC MAINTENANCE
Figure 15
There are two types of special service
tools for removing the impeller:
Puller A (standard)
Part No. 129671-92110
(B)
Figure 16
Puller A
M18x1.5
1. Remove the side cover of the seawater
pump.
2. Install puller (Figure 16, (A)) in the
impeller.
3. Turn the jack screw (Figure 16, (B))
clockwise to remove the impeller from
the pump body.
74
(1)
0004510
(A)
0004501
Jack Screw B
M10x40 mm length
Figure 17
Figure 18
Note: When replacing a used impeller
with a new one, the impeller
must have an M18x1.5 thread
(Figure 17, (1)). Turn the M18
screw side of the impeller to the
cover side and install
(Figure 18).
JH Series Operation Manual
(1)
B
A
0004567
0004568