3. Turn the jack screw (Figure 16, (B))
clockwise to remove the impeller from
the pump body.
0004567
(1)
A
B
Figure 17
0004568
Figure 18
Note: When replacing a used impeller with
a new one, the impeller must have an M18 x
1.5 thread (Figure 17, (1)). Turn the M18
screw-side of the impeller to the cover side
and install (Figure 18).
Puller B (Option) Part No. 129671-92100
0004502
(A)
(B)
Figure 19
A B
110 mm 140 mm
Replacing Coolant
Replace coolant every year.
Note: If Long Life coolant is used, replace
coolant every 2 years.
3JH4E
0004556
(2)
(5)
(3)
(4)
(1)
(6)
Figure 20
1 – Coolant Tank (Heat Exchanger)
2 – Seawater Drain Cock
3 – Coolant Drain Cock (3JH4E Only) -
Located behind the V-belt cover
4 – Coolant Pump (Fresh Water)
5 – Seawater Drain from Seawater
Pump Cover
6 – Coolant Drain Cock
PERIODIC MAINTENANCE
70 JH4 Series Operation Manual
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