Yanmar 3JH5E Operation Manual page 96

PERIODIC MAINTENANCE
Cleaning and Checking the
Seawater Passages
After prolonged use, clean the seawater
passages to remove trash, scale, rust and
other contaminants that collect in the
cooling water passages. This can cause
declining cooling performance. The
following items need to be inspected:
• Heat Exchanger
• Pressure Cap
See your authorized Yanmar Marine dealer
or distributor.
Checking Diaphragm Assembly
(3JH5E / 4JH5E Only)
(2)
(3)
(4)
(9)
(8)
(7)
Figure 28
1 – Diaphragm Cover
2 – Spring
3 – Center Plate
4 – Diaphragm
5 – Rocker Arm Cover
6 – Breather Baffle
7 – Baffle Plate
8 – Intake Silencer
9 – Breather Pipe
See your authorized Yanmar Marine dealer
or distributor.
88
Replacing the Alternator V-Belt
See Checking and Adjusting the Alternator
V-Belt Tension on page 73.
Adjusting Intake / Exhaust Valve
Clearance
See your authorized Yanmar Marine dealer
or distributor.
Checking the Remote Control Cable
Operation
See your authorized Yanmar Marine dealer
or distributor.
Adjusting the Propeller Shaft
Alignment
See your authorized Yanmar Marine dealer
(1)
or distributor.
(5)
(6)
0003628
JH Series Operation Manual