Operation and maintenance manual

SEBU8601-01 119
Maintenance Section
Radiator Pressure Cap - Clean/Replace
Inspect the fins
for damage. Bent fins may be opened
with a “comb”. Inspect these items for good condition:
Welds, mounting brackets, air lines, connections,
clamps, and se
als. Make repairs, if necessary.
i03639888
Radiator Pressure Cap -
Clean/Replace
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system fille r cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the pres-
sure.
NOTICE
When any servicing or repair of the engine cooling
system i
s performed the procedure must be performed
with the engine on level ground. This will allow you to
accurately check the coolant level. This will also help
in avoi
ding the risk of introducing an air lock into the
coolant system.
1. Stop t
he engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in
order to relieve any pressure. Remove the radiator
press
ure cap.
2. Check coolant level. Refer to Operation and
Main
tenance Manual, “Cooling System Coolant
Level - Check”.
3. Inst
all new radiator pressure cap.
i02
335775
Severe Service A pp lication -
Ch
eck
Severe service is the application of an engine that
exceeds the current published standards for that
e
ngine. Perkins maintains standards for the following
engine parameters:
•
P
erformance such as power range, speed range,
and fuel consumption
•
Fuel quality
•
Operational Altitude
•
Maintenance in
tervals
•
Oil selection and maintenance
•
Coolant type and maintenance
•
Environment
al qualities
•
Installation
•
The temperature of the fluid in the engine
Refer to the
standards for the engine or consult your
Perkins dealer or your Perkins distributor in order to
determine if the engine is operating within the defined
parameter
s.
Severe service operation can accelerate component
wear. Engi
nes that operate under severe conditions
may need more frequent maintenance intervals in
order to ensure maximum reliability and retention of
full serv
ice life.
Due to individual applications, it is not possible
to identi
fy all of the factors which can contribute
to severe service operation. Consult your Perkins
dealer or your Perkins distributor for the unique
mainten
ance that is necessary for the engine.
The operating environment, incorrect operating
procedu
res and incorrect maintenance procedures
can be factors which contribute to a severe service
application.
Environmental Factors
Ambient temperatures – Theenginemaybe
exposed to extended operation in extremely
cold e
nvironments or hot environments. Valve
components can be damaged by carbon buildup if
the engine is frequently started and stopped in very
cold
temperatures. Extremely hot intake air reduces
engine performance.
Qual
ity of the air – The engine may be exposed
to extended operation in an environment that is
dirty or dusty, unless the equipment is cleaned
reg
ularly. Mud, dirt and dust can encase components.
Maintenance can be very difficult. The buildup can
contain corrosive chemicals.
Buildup – Compounds, elements, corrosive
chemicals and salt can damage some components.
Altitude – Problems can arise when the engine is
operated at altitudes that are higher than the intended
se
ttings for that application. Necessary adjustments
should be made.