Northern Lights OL1276, Руководство оператора

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OL1276 03/10
18
SP18. ZINC ANODES
continued
Heat exchanger cooled engine:
a. Drain the raw water from heat exchanger
(see Component Locations).
b. Remove zinc holders from back of the tank and
from front and port side of the heat exchanger
(see Component Locations).
Keel Cooled engines.
a. Drain expansion tank and remove zinc holder
from tank (see Component Locations).
2. Scrape or steel brush the zinc electrode clean. If
more than 50% of the electrode has eroded away,
replace it with a new one. The electrode screws out
of the holder.
3. Reinstall the zinc holders. Be sure the threads are
clean and have good metal to metal contact.
SP19. RAW WATER PUMP
Heat exchanged cooled engines only.
1. Change the sea water pump impeller as needed.
2. Remove the pump end cover. Remove impeller with
water pump pliers. Be sure you remove all pieces of
a failed impeller.
3. Clean the inside of the housing.
4. Press in the new impeller and place the sealing
washer in the outer end of the impeller center if this
has not already been done.
5. Replace the cover using a new gasket.
Note: Make sure there is always an extra impeller
and cover gasket in reserve and on-board.
DRIVEN EQUIPMENT
Gears and PTO's
1. Manufacturer's service recommendations vary. See
your Owner's Manual for service information. If you
do not have a manual, see your local dealer for the
equipment in question.
NOTE: Some PTO and marine gears have
rigid lubrication requirements. Follow service
recommendations closely.
ELECTRICAL SYSTEM - GENERAL
1. Never switch battery switch off or break the circuit
between the alternator and batteries while the engine
is running. Regulator damage can result.
2. DO NOT reverse the polarity of battery cables when
installing the battery.
3. When welding on the unit, disconnect the regulator
and battery. Isolate the leads.
4. Disconnect battery cables when servicing the DC
alternator.
5. Never test with a screwdriver, etc., against any ter-
minal to see if it emits sparks.
6. A DC circuit breaker protects your control panel and
wiring harness.
PRECAUTIONS FOR WELDING ON VESSELS
WITH AN ELECTRONIC ENGINE CONTROL
UNIT (ECU)
Caution: Always disconnect the Electronic Con-
trol Unit connectors and engine control system-
to-vessel ground before welding. High currents or
electro-static discharge in electronic components
from welding may cause permanent damage.
1. Remove the ground connection for the engine control
system-to-vessel frame.
2. Disconnect the connectors from the ECU.
3. Connect the welder ground close to the welding
point and be sure that the ECU or other electronic
components are not in the ground path.
Servicing