Yanmar 4JH45 - Troubleshooting Information

PERIODIC MAINTENANCE
128 JH Series Operation Manual
Figure 15
Special service tools for removing the
impeller:
Puller A (standard)
Part No. 129671-92110
Figure 16
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.
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).
Puller A Jack Screw B
M18x1.5 M10x40 mm length
K0004510
1
K0004501
B
A
K0004567
1
A
B
K0004568
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