FEC AFC1200 - Manual (Page 9)

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WARNING: DO NOT CONNECT OR DISCONNECT CABLES OR OTHER SYSTEM
COMPONENTS WITH POWER APPLIED. FOLLOW LOCKOUT/TAGOUT AND
OTHER APPLICABLE SAFETY PRECAUTIONS WHEN CONNECTING OR
DISCONNECTING CABLING, WIRING, AND EQUIPMENT.
To replace an Axis Unit, proceed as follows:
1. Ensure that there is no power to the System, then disconnect all power cables and
communication cables connected to the Axis Unit.
2. Carefully remove the Axis Unit from the enclosure. (Sections 4.2.3 and 4.3)
3. Verify that the replacement Axis Unit's hardware and software configuration is identical to
the configuration of the failed Unit.
4. Verify that the Axis Unit dip switches are set to the appropriate spindle number and
ramp-up time. Refer to Section 4.9.
5. Secure the replacement Unit in the enclosure.
6. Verify that the power source is within specifications (Section 2.4), then connect all power
cables and communication cables to the replacement Axis Unit.
7. Prepare the System for operation by following the procedures in Chapter 5.
8.3.4 nutrunner (tool) rEPLACEMENT (NO pARTIAL rEPLACEMENT)
Nutrunners are not user-serviceable, and the tool should not be disassembled except to
perform the Transmission Inspection procedure described in Section 8.2.4. In the event of
failure, the nutrunner should be totally replaced with an identical tool. The tool type
identification can be found on both the identification tag affixed to the tool, and on the System
[PREAMP EEPROM DATA] screen.
1. Ensure that there is no power to the System, then disconnect the three (3) homerun cables
from the tool.
2. Ensure that the spindle assembly is supported, and remove the two (2) bolts securing it to
the mounting plate.
WARNING: These two (2) bolts also secure the nutrunner, with the two (2) bolts
removed in the next step. Some tool models are very heavy. Use precautions when
disconnecting, removing, and installing these components.
3. The preamplifier is secured to the powerhead frame with two (2) screws. When possible,
it is more convenient to disconnect the preamp from the powerhead frame prior to
removing the nutrunner.
CAUTION: The preamp is also connected to the nutrunner, and this connection
must not be subject to stress or shock which could cause damage and result in
inaccurate System output. Do not allow any pull on the preamp cable.
4. To remove the nutrunner, first verify the preamplifier removal status (Step 4, above).
Ensure the nutrunner is supported, and remove the two (2) remaining bolts (two of the four
were removed in Step 3).
5. Follow all safety precautions to install an identical nutrunner/preamp assembly by
performing the removal procedure in reverse order.
6. Prepare the System for operation by following the procedures in Chapter 5.
8.3.5 Replace homerun cables
FEC INC. provides a spare set of homerun cables with each System.
1. Verify all System power is off.
2. Disconnect the damaged cable(s) from the nutrunner and the Axis Unit, and replace with
the spare cable(s). Bypass all other Axis Units, and verify that the new cables function.
Chapter 8: Maintenance and Inspection
Page 8-9