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Universal Marine Diesel Maintenance Schedule

Universal Marine Diesel Maintenance Schedule. M-25XPBC.

Universal Marine Diesel Maintenance Schedule. The engine is fresh water cooled (engine coolant) by an engine-mounted heat exchanger.

Seawater is pumped through the heat. exchanger by a gear-driven, positive displacement impeller pump.

After the Seawater cools the engine coolant in the heat exchanger, it mixes with the engine’s exhaust gases, cools the exhaust gases, and discharges overboard.

Coolant is circulated by a belt-driven centrifugal-type metal impeller pump mounted on the front of the engine.

The engine’s coolant temperature is thermostatically controlled.

The engine’s coolant must be changed according to the maintenance schedule. If the coolant is allowed to become contaminated, it can lead to overheating problems.

Serviced by our trained technicians at 805 Marine Diesel Mechanic. servicing, Oxnard, Ventura, Channel Islands Harbor & Santa Barbara.

 

Universal Marine Diesel Maintenance Schedule

DAILY CHECK BEFORE START-UP:

 

EVERY 50 OPERATING HOURS OR MONTHLY:

 

EVERY 100HRS OR YEARLY:

 

250 OPERATING HOURS OR YEARLY:

 

500 OPERATING HOURS OR YEARLY:

 

1000hrs OR EVERY 5 YEARS:

 

NOTE: These are UNIVERSAL Marine periodic maintenance recommendations strait out of the service manual. Some of these seem excessive to me such as, Fuel Injectors: Check and adjust injection opening pressure and spray conditions every year. here at Santa Barbara Marine Diesel Mechanic, we can customize your diesel engines periodic maintenance to fit your needs.

 

 

ALARMS AND CIRCUIT BREAKER:

ENGINE CIRCUIT BREAKER

The DC harness on the engine is protected by an engine mounted manual reset circuit breaker (20 amps DC).

Excessive current draw or electrical overload anywhere in the instrument panel wiring or engine wiring will cause the breaker to trip.

In this event most engines will shut down because the open breaker disconnects the fuel supply.

If this should occur, check and repair the source of the problem. After repairing the fault, reset the breaker and restart the engine.

 

LOW OIL PRESSURE ALARM SWITCH

A low oil pressure alarm switch is located off the engine’s oil gallery.

This switch’s sensor monitors the engine’s oil pressure. Should the engine’s oil pressure fall to 5 -1.Q psi (0.4 – 0.7 kg/cm2), this switch will activate a pulsating alarm.

 

COOLANT TEMPERATURE SWITCH

A coolant temperature switch is located on the thermostat. housing. This switch will activate a continuous alarm if the coolant’s operating temperature reaches approximately 210″F (99°C)

 

index – Westerbeke

 

M3-20B – Westerbeke

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