FEC AFC3000, Руководство по эксплуатации оборудования

Страница: 262 / 294

Chapter 9 Maintenance & Inspection
PAGE 9-3
9-1-4 Controller
The MFC Units of the AFC3000 System are made up of semiconductor devices and are ensured with
high reliability. However, depending on the surrounding environment and usage conditions, the
semiconductor devices may deteriorate. It is therefore required that periodic inspections be performed.
(Inspect Quarterly)
•
ABNORMAL is not displayed on the unit display device.
•
The input power and current meet the specifications (including during the fastening operation).
•
There is not the instantaneous power failure or rapid voltage change.
•
The environmental conditions (or unit environment) are within specifications.
•
There is no contamination, oil or foreign matter on the unit.
•
Unit is securely tightened. All screws (for the cover of the unit and for mounting) are correctly
tightened.
•
The unit is not producing any abnormal (excessive) heat.
•
The unit display device is securely tightened.
9-1-5 Transmission Disassembly and Inspection
w
The planetary gear transmissions used in the AFC3000 System's tool assemblies are designed to
withstand the forces exerted upon them by high production requirements of modern assembly processes.
w
The total cycle count of the tool assembly is kept on the Tool EEPROM ID chip and can be retrieved
using the AFC3000 User Console Software. This count can be used for diagnostic and maintenance
purposes. (Only FEC can reset this counter)
w
To prolong the life of the transmission assembly, the components must be inspected, cleaned
and greased at regular intervals .
P
FEC INC. recommends performing this procedure initially after equipment has been in use for
two years or 1,000,000 cycles, whichever is reached first .
P
When the initial maintenance is performed, the condition of the transmission assembly should be
analyzed to determine future maintenance requirements. Systems operating under more severe
conditions (Full scale torque in high temperatures or High Speed in Hard Joint applications) may require
maintenance every 750,000 cycles, while other systems may only require maintenance every 2 - 3 million
cycles. The transmission gear wear, grease condition (clean, dirty, dried or contaminated with metal
particles) and bearing condition is a good indicator of future preventative maintenance schedules.
1. REMOVE TRANSMISSION FROM TOOL ASSEMBLY. Remove cable cover and transducer covers
from tool. Disconnected transducer cable from Preamp PCB. Separate the transmission from the motor
by removing (3) screws on motor side. Remove the snap ring from the output shaft. Separate the
transducer from the transmission by removing (3) screws from output shaft side.
2. DISASSEMBLE TRANSMISSION. Remove all internal transmission parts paying attention to how it
comes apart. (take pictures if necessary to ease re-assembly) Note grease condition.
3. CLEAN TRANSMISSION PARTS. Clean all parts with an appropriate solvent, such as mineral
spirits, to remove all excess grease and contamination. Parts should be carefully wiped dry with a
lint-free cloth to remove any residue. Allow the parts to dry thoroughly in an area free from
contamination.
4. INSPECT TRANSMISSION PARTS. Examine all gears, pins, bearings, etc. for signs of excessive
wear. Replace any part that failed or appears it may fail.