Periodic Maintenance Procedures; After Initial 50 Hours Of Operation; Every 50 Hours Of Operation; Every 250 Hours Of Operation - Yanmar BY Series Service Manual

Periodic Maintenance Procedures

PERIODIC MAINTENANCE
PROCEDURES

After Initial 50 Hours of Operation

Perform the following maintenance after the initial
50 hours of operation.
• Change the Engine Oil and Replace the
Engine Oil Filter
• Check Shift Cable Adjustment
• Adjust the Propeller Shaft Alignment (If
Equipped with Marine Gear)

Every 50 Hours of Operation

After you complete the initial 50 hour maintenance
procedures, perform the following procedures every
50 hours or monthly thereafter.
• Check Seawater Filter (If Equipped) and Inlet
• Check the Air Intake Pipes
• Check Battery Electrolyte Level (Serviceable
Batteries Only)

Every 250 Hours of Operation

Perform the following maintenance every 250 hours
or one year of operation.
• Drain Water and Sediment from Fuel Tank
• Replace the Fuel Pre-Filter
• Replace the Fuel Fine Filter
• Replace the Fuel Filter / Water Separator
Element
• Change the Engine Oil and Replace the
Engine Oil Filter Element
• Check / Replace the Seawater Pump Belt
• Replace the Zinc Anodes
BY Service Manual
PERIODIC MAINTENANCE
• Check or Replace the Seawater Pump Impeller
• Replace the Turbocharger Heat Shield
• Check the Exhaust / Water Mixing Elbow
• Clean or Replace the Air Filter Element
• Check / Change the Alternator Belt
• Check / Change the Power Steering Fluid
• Check the Shift Cable Adjustment
• Adjust the Propeller Shaft Alignment
• Check the Hydraulic Oil Cooler
• Check or Replace Rubber Hoses

Every 500 Hours of Operation

Perform the following maintenance every 500 hours
or 2 years of operation.
• Check Fuel Pump and Fuel Lines
• Drain and Refill Closed Cooling System
(Engine Coolant)
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