Perkins 904D-E28T, Руководство по эксплуатации и обслуживанию, Страница: 99 / 110

1. Stop the engine. Allow the engine to cool.
2. Loosen the cooling system filler cap slowly to
relieve any pressure. Remove the cooling system
filler cap.
Note: Drain the coolant into a suitable, clean
container. The coolant can be reused.
3. Drain the coolant from the cooling system to a
level that is below the hose that is being replaced.
4. Remove the hose clamps.
5. Disconnect the old hose.
6. Replace the old hose with a new hose.
7. Install the hose clamps with a torque wrench.
Note: For the correct coolant, see this Operation and
Maintenance Manual, “Fluid Recommendations”.
8. Refill the cooling system. Refer to the OEM
information for further information on refilling the
cooling system.
9. Clean the cooling system filler cap. Inspect the
cooling system filler cap's seals. Replace the
cooling system filler cap if the seals are damaged.
Install the cooling system filler cap.
10. Start the engine. Inspect the cooling system for
leaks.
i07888480
Starting Motor - Inspect
Perkins recommends a scheduled inspection of the
starting motor. If the starting motor fails, the engine
may not start in an emergency situation.
Check the starting motor for correct operation. Check
the electrical connections and clean the electrical
connections. Refer to the Systems Operation, Testing
and Adjusting Manual, “Electric Starting System -
Test” for more information on the checking procedure
and for specifications consult your Perkins dealer or
your Perkins distributor for assistance.
i08134393
Turbocharger - Inspect
Hot engine components can cause injury from
burns. Before performing maintenance on the en-
gine, allow the engine and the components to
cool.
NOTICE
Turbocharger bearing failures can cause large quan-
tities of oil to enter the air intake and exhaust sys-
tems. Loss of engine lubricant can result in serious
engine damage.
Minor leakage of oil into a turbocharger under ex-
tended low idle operation should not cause problems
as long as a turbocharger bearing failure has not
occured.
When a turbocharger bearing failure is accompanied
by a significant engine performance loss (exhaust
smoke or engine rpm up at no load), do not continue
engine operation until the turbocharger is renewed.
A visual inspection of the turbocharger or
turbochargers can minimize unscheduled downtime.
A visual inspection of the turbocharger or
turbochargers can also reduce the chance for
potential damage to other engine parts. Do not
inspect the engine with the engine in operation.
Illustration 61 g06536519
Typical example of 904D-E28T Industrial Engine
M0108133-04 99
Maintenance Section
Starting Motor - Inspect