Nordco TRIPP HD, Operation Manual

Page: 19 / 82

MAR 2016 49457610 TRIPP HD RevB 2-1
Section 2
LOGOUT/TAGOUT
ENGINE PRECAUTIONS
WELDING PRECAUTIONS
This machine is equipped with an engine that has an
electronic control unit/module (ECU/ECM).
IMPORTANT
Failure to correctly isolate the ECU during welding on
this machine WILL result in damage to the machine.
Take the following steps to avoid damage to the
ECU/ECM:
1. Remove the ground connection between the
engine and the machine frame.
2. Remove the connectors from the ECU/ECM of the
engine and the engine harness from the control
box or panel.
3. Turn the Battery Disconnect Switch (BDS) to the
OFF position.
a. For machines with the BDS on the left side of
the center (front) control console: Place a
TAGOUT card on the switch after you have
switched it to the OFF position.
b. For machines with a remotely located BDS
(usually next to the battery box itself): Close
the cover to the disconnect switch and place a
LOCKOUT lock on the box after you have
switched it to the OFF position.
4. Connect the welder ground close to a weld point so
that the ECU/ECM and other electronic
components are not in the ground path.
SAFETY PROCEDURES
1. Apply the parking brakes with the yellow PARKING
BRAKE button located on the center control
console.
NOTE
Apply this button to release air pressure that
normally releases the parking brakes. By relieving
this pressure, a high energy spring applies to all
four brakes.
Read the knob to determine whether the brake is
applied by pushing in or pulling out.
2. Chock the wheels to prevent accidental rolling of
the machine on an incline.
3. If you have not already done so, determine which
components are to have maintenance. Place all
machine mechanical systems or workheads in the
full up and locked positions.
4. Refer to this list to determine what procedures are
required, when mechanically locking up of
equipment is not feasible for maintenance. See
“LOCKOUT/TAGOUT – PROCEDURES,
MACHINES WITH POWER LOCKUPS (OPTION)”
on page 2-3.
5. Turn the IGNITION switch to the OFF position. This
turns off the power to the control circuits on the
machine. Place a
TAGOUT card in close proximity
to the IGNITION switch.
6. Turn the Battery Disconnect Switch (BDS) to the
OFF position.
a. For machines with the BDS on the left side of
the center (front) control console: Place a
TAGOUT card on the switch after you have
switched it to the OFF position.
b. For machines with a remotely located BDS
(usually next to the battery box itself): Close
the cover to the disconnect switch and place a
LOCKOUT lock on the box after you have
switched it to the OFF position.