Replacing The Drive Belt - Proxxon FF 500 CNC Commissioning Manual

14.2. Replacing the drive belt

If the drive belts are worn, you
can replace them yourself. You
will receive spare belts from
PROXXON Zentralservice
(address at the back of these
instructions).
1. Release knurled screw 1 and
swing up the housing cover.
2. Slightly release fastening
screws 4 and shift the housing
somewhat to the right until the
lower V-belt relaxes.
3. Unscrew the motor from the
screws 3.
4. Now, both belts can be
replaced. Please note: The
belts do not have the same
length! Do not mix up the belts!
5. Screw the motor back on.
Ensure correct belt tension.
6. Correctly position the lower V-belt 2
according to the desired rotational
speed. Use the sticker on the inside of
the housing as orientation.
7. Shift the housing back to the left until the
V-belts are properly tensioned and re-
tighten the fastening screws 4.
8. Close the housing cover and re-tighten
the knurled screw 1.
3
1
2
2
4
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