PERIODIC MAINTENANCE
PROCEDURES
Weekly
Perform the following procedures on a
weekly basis.
• Checking the Water Inlets
• Checking the Seawater Inlet Hole
• Inspecting the Anodes
• Checking the Oil Level
Checking the Water Inlets
Check the water inlets for debris or marine
growth. Clean if necessary.
Checking the Seawater Inlet Hole
Check the seawater inlet hole. Clean if
necessary.
Inspecting the Anodes
Inspect the anodes and replace if 50%
corroded. See Corrosion Protection on
page 14.
Checking the Oil Level
Check the stern-drive oil level within one
week of the first use as follows:
1. Remove the oil vent plug and gasket
(Figure 1, (1)).
0006031
(2)
(1)
Figure 1
1 – Oil Vent Plug
2 – Gasket
2. If necessary, add oil until an air-free
stream of oil flows from the oil vent hole.
3. Install the oil vent plug and gasket.
Torque the oil vent plug.
Oil Vent Plug Torque
N·m
lb-ft
15
11
MAINTENANCE
ZT350 Operation Manual
39
© 2008 Yanmar Marine International