5–44 Part Replacement Procedures
Publication 1336 IMPACT-6.8 – November, 2002
Part Replacement Procedures
Replacing the Converter Bay Door Fan
The Converter Bay is configured to each order. The steps and
illustrations in this procedure are typical.
Removal
1. Remove power and check for zero voltage in the drive. Refer to
Opening the Drive Enclosure in Chapter 3, Access Procedures.
!
ATTENTION: Disconnect and lock out power from
the drive before disassembling the drive. Failure to
disconnect power may result in death or serious injury.
Verify zero bus voltage by measuring the voltage
between the Negative Capacitor Bus and both ends of
all three bus fuses. An open fuse does not show voltage
across both ends of the fuse. Failure to measure voltage
at both ends of the fuses may result in death or serious
injury. Refer to Figure 3.5. Do not attempt to service the
drive until the bus voltage has discharged to zero volts.
Important: Before you remove connections and wires from the
drive components, mark the connections and wires to
correspond with their component connections and
terminals to prevent incorrect wiring during assembly.
2. Remove the wires from the terminal block located on the right
side of the fan assembly.
3. Remove the nut, lock washer, and flat washer from each of the
four weld studs.
4. Remove the fan assembly.
Installation
1. Place the new fan assembly on to the four weld studs. The
terminal block should be located on the lower right side of the fan
assembly when the assembly is correctly placed on the door.
2. Place the flat washer, lock washer, and nut on the four weld studs
to hold the fan in place.
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