FEC AFC1500 - Manual (Page 150)

Chapter 8: System Operations
Page 8-6
8.2.4 Transmission Disassembly and Inspection
(This instruction is for RMx tool assemblies – RHx high speed tools are not covered by this instruction)
w The planetary gear transmissions used in the AFC1500 System's tool assemblies are designed to
withstand the forces exerted upon them by high production requirements of modern assembly plants.
w The Total cycle count of the tool assembly is kept on the Tool Preamplifier and can be retrieved us-
ing the AFC1500 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 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 con-
ditions (Full scale torque in high temperatures) may require maintenance every 750,000 cycles, while
other systems may only require maintenance every 2 - 3 million cycles.
1. REMOVE TRANSMISSION FROM TOOL ASSEMBLY. Separate the transmission from the motor
by removing four (4) screws. Remove the snap ring from the output shaft. Separate the transducer
from the transmission by removing four (4) screws.
2. DISASSEMBLE TRANSMISSION. Refer to the appropriate transmission assembly drawing while
disassembling the transmission for cleaning. (See next pages)
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 contami-
nation.
4. INSPECT TRANSMISSION PARTS. Examine all gears, pins, bearings, etc. for signs of exces-
sive wear. Replace any part that failed or appears it may fail.
5. LUBRICATE TRANSMISSION PARTS. Reassemble the transmission in a contaminant-free
area. Re-pack all bearings and grease all gears. Do not pack the transmission housing with exces-
sive grease; over-greasing could damage the tool and cause it to stall. Recommended grease: Su-
noco Sunaplex 992 EP or equivalent.
6. REASSEMBLE TRANSMISSION. Refer to the appropriate transmission assembly drawing while
reassembling the transmission. If needed, rotate the gears to aid in the assembly process. If the
transmission does not rotate freely after re-assembly, then disassemble the transmission again to iso-
late and correct the cause.
7. RE-ASSEMBLE TOOL. Connect the transmission to the motor with four (4) screws. If needed,
rotate the output shaft to align the transmission planetary gears with the motor output splined shaft.
Connect the transducer to the transmission with four (4) screws. Install the snap ring onto the output
shaft to hold the outer bearing in place. If the transmission does not rotate freely after reassembling
the tool, then disassemble the tool again to isolate and correct the cause.
NOTE: Snap ring installation must be the last step in re-assembly.
8. INSPECT SPINDLE ASSEMBLY. Prior to installing the tool into an application, inspect the spring
loaded spindle assembly that will connect to the tool. The assembly should compress evenly, without
binding. Rotate the assembly in the spindle housing and verify there is no binding. Visually inspect
the entire assembly for signs of wear or fatigue. Replace parts as required, and reassemble. Lubri-
cate the inner bearings of the housing as required. Install the tool into the application and verify there
is no binding.