Rottler F103 Series, Installation Manual, Operation And Maintenance Manual

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Section 6 Maintenance F103/4/5A Manual
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6-28
F103/4/5A Upper Housing Disassembly
Travel the machine to the right Home position.
Remove the spindle base door and right side cover.
Place a board across the spindle base directly below the spindle motor (6790K or 6790U). Lower the
spindle until the motor just touches the board.
Disconnect all power and air to the machine before continuing, severe bodily
injury may occur.
Remove the four (4) bolts securing the motor the belt housing. Remove the two (2) bolts that secure the
cable carrier (6314K) to the upper housing. Remove the oil and air lines from the upper housing.
Note: It is not necessary to disconnect the spindle motor wiring.
Rotate the vertical ballscrew by hand until it is about eight (8) inches from the top plate.
Place a board, of proper length, between the bottom of the upper housing and the top of the spindle base
to prevent it from falling.
Remove the two bolts that secure the centering gear housing (6168H) to the belt housing. Work the
centering housing up off the centering shaft. Tie it up to the top plate.
IMPORTANT!!: Do not attempt to move the vertical under power when the centering housing
is not bolted to the belt housing or the upper plate. Severe damage will result to the centering
shaft!!
Remove the Clevis Pin (7210B) from the draw bar actuator bracket (6174B). Lift the actuator arm
(6173B), move the arm and cylinder off to the side. Remove the air cylinder (6204A), clevis pin (6189A)
and mount bracket (6188C) from the side of the belt housing. Remove the two (2) bolts that attach the
draw bar actuator bracket (6174B) to the to belt housing cover.
Remove the counter weight cable (6453 F or 6453G) from the upper housing by loosening the lock nut
and unscrewing the cable nut.
Note: When reassembling, be sure not to thread the cable nut in too far as it may come in contact
with the driven pulley.
Remove the eight (8) screws holding the inner spindle end cap (6180A). Unscrew these bolts slowly
around the diameter of the end cap as they are under spring pressure from the draw bar. Remove the
cap by pulling straight up.
Note: When reinstalling, the end cap must be aligned concentric to the draw bar.
Remove the three (3) screws that secure the vertical ballscrew nut to the belt housing. Holding the nut
with one hand, turn the ballscrew with the other to move it up and out of the way so the belt housing lid
can be removed.
Remove the bolts securing the belt housing covers. The covers are pinned to the belt housing. Use a
soft face mallet to carefully remove the covers.
From this position you can remove and/or replace pulleys and belts.