Product Information Section; General Information - Perkins 2506 Operation And Maintenance Manual

SEBU8313-02
Product Information
Section

General Information

Welding on Engines with
Electronic Controls
NOTICE
Proper welding procedures are necessary in order to
avoid damage to the engine's ECM, sensors, and as-
sociated components. When possible, remove the
component from the unit and then weld the compo-
nent. If removal of the component is not possible, the
following procedure must be followed when you weld
with a unit that is equipped with an Electronic Engine.
The following procedure is considered to be the saf-
est procedure to weld a component. This procedure
should provide a minimum risk of damage to elec-
tronic 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 bearings, hy-
draulic components, electrical components, and oth-
er 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.
1. Stop the engine. Turn the switched power to the
OFF position.
2. Disconnect the negative battery cable from the
battery. If a battery disconnect switch is provided,
open the switch.
3. Disconnect the J1/P1 connectors from the ECM.
Move the harness to a position that will not allow
the harness to accidentally move back and make
contact with any of the ECM pins.
i01889424
Illustration 13
Use the example above. The current flow from the
welder to the ground clamp of the welder will not
cause damage to any associated components.
(1) Engine
(2) Welding rod
(3) Keyswitch in the OFF position
(4) Battery disconnect switch in the open position
(5) Disconnected battery cables
(6) Battery
(7) Electrical/Electronic component
(8) Maximum distance between the component that is being
welded and any electrical/electronic component
(9) The component that is being welded
(10) Current path of the welder
(11) Ground clamp for the welder
4. Connect the welding ground cable directly to the
part that will be welded. Place the ground cable as
close as possible to the weld in order to reduce the
possibility of welding current damage to bearings,
hydraulic components, electrical components, and
ground straps.
Note: If electrical/electronic components are used as
a ground for the welder, or electrical/electronic
components are located between the welder ground
and the weld, current flow from the welder could
severely damage the component.
5. Protect the wiring harness from welding debris and
spatter.
6. Use standard welding practices to weld the
materials.

Product Information Section

General Information
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