This document is printed from SPI². Not for RESALE
58
SEBU8311-02
Maintenance Section
Maintenance Recommendations
Maintenance
Recommendations
i03751181
System Pressure Release
Coolant System
Pressurized system: Hot coolant can cause seri-
ous burn. To open cap, stop engine, wait until ra-
diator is cool. Then loosen cap slowly to relieve
the pressure.
To relieve the pressure from the coolant system, turn
off the engine. Allow the cooling system pressure cap
to cool. Remove the cooling system pressure cap
slowly in order to relieve pressure.
Fuel System
To relieve the pressure from the fuel system, turn off
the engine.
High Pressure Fuel Lines (If Equipped)
Contact with high pressure fuel may cause
fl
uid
penetration and burn hazards. High pressure fu-
el spray may cause a
fi
re hazard. Failure to fol-
low these inspection, maintenance and service in-
structions may cause personal injury or death.
The high pressure fuel lines are the fuel lines that
are between the high pressure fuel pump and the
high pressure fuel manifold and the fuel lines that are
between the fuel manifold and cylinder head. These
fuel lines are different from fuel lines on other fuel
systems.
This is because of the following differences:
•
The high pressure fuel lines are constantly charged
with high pressure.
•
The internal pressures of the high pressure fuel
lines are higher than other types of fuel system.
Before any service or repair is performed on the
engine fuel lines, perform the following tasks:
1.
Stop the engine.
2.
Wait for ten minutes.
Do not loosen the high pressure fuel lines in order to
remove air pressure from the fuel system.
Engine Oil
To relieve pressure from the lubricating system, turn
off the engine.
i03751203
Welding on Engines with
Electronic Controls
NOTICE
Because the strength of the frame may decrease,
some manufacturers do not recommend welding
onto a chassis frame or rail. Consult the OEM of the
equipment or your Perkins dealer regarding welding
on a chassis frame or rail.
Correct welding procedures are necessary in order
to avoid damage to the engine's ECM, sensors, and
associated components. When possible, remove
the component from the unit and then weld the
component. If removal of the component is not
possible, the following procedure must be followed
when you weld on a unit that is equipped with a
Perkins Electronic Engine. The following procedure
is considered to be the safest procedure to weld
on a component. This procedure should provide a
minimum risk of damage to electronic components.
NOTICE
Do not ground the welder to electrical components
such as the ECM or sensors. Improper grounding can
cause damage to the drive train, the bearings, hy-
draulic components, electrical components, and other
components.
Do not ground the welder across the centerline of the
package. Improper grounding could cause damage to
the bearings, the crankshaft, the rotor shaft, and other
components.
Clamp the ground cable from the welder to the com-
ponent that will be welded. Place the clamp as close
as possible to the weld. This will help reduce the pos-
sibility of damage.
Note:
Perform the welding in areas that are free from
explosive hazards.