Yanmar 6BY2 - Disconnect and Connect Quick-Connect Fittings; Remove and Install Hydraulic Oil Cooler

COOLING SYSTEM
Repair
12/05
BY Service Manual
7-11
© 2009 Yanmar Marine International
Disconnect and Connect
Quick-Connect Fittings
Disconnect
1. Pry metal clip (Figure 7-9, (1)) until it clicks into
position shown.
Figure 7-9
Figure 7-9
2. Disconnect fitting joint.
Connect
1. Push metal clip against the fitting into the
latched position.
2. Ensure the O-ring is in place and in good
condition.
3. Align the two fittings and push together until the
clip makes an audible click.
4. Check to be sure the connection is securely
latched by attempting to pull apart.
Remove and Install Hydraulic Oil
Cooler
1. Drain cooling system. See Drain and Refill
Seawater Cooling System on page 7-8.
2. Loosen clamps and remove seawater pipe
(Figure 7-10, (1)).
Figure 7-1 0
Figure 7-10
3. Loosen clamps and remove seawater pipe
(Figure 7-10, (2)).
4. Remove hydraulic lines from ports
(Figure 7-10, (3)). Allow fluid to drain into an
appropriate container. Dispose of waste
properly.
5. Loosen clamps (Figure 7-10, (4)) completely
and remove hydraulic oil cooler.
6. Inspect cooler for damage or blockage.
7. Install cooler and tighten clamps
(Figure 7-10, (4)).
8. Install hydraulic lines. Ensure copper washers
are in place.
9. Install seawater pipes (Figure 7-10, (1 and 2)).
Tighten clamps securely.
10. Add power steering fluid or marine gear oil as
appropriate.
11. Start engine and check for water or hydraulic
leaks.
12. Check level of power steering fluid or marine
gear oil and add more if necessary.
0003694
(1)
0006642
(2)
(
1
)
(
3
)
(
4
)
(3)