Wachs FF 424, Руководство пользователя, Страница: 26 / 70

FF 424 FLANGE FACING SYSTEM
Under normal operating conditions, the bevel gear
sets and roller bearing should be inspected every 100
hours of operation and lubricated as needed.
If exceptionally difficult work has been performed or if
excessive coolant has contaminated the gear sets and
roller bearings, inspection and lubrication should be
done much more frequently.
The bore of the cutting head, feed nut and mandrel
must be kept cleaned and oiled.
MAIN SHAFT BEARING PRE-LOAD
Lock nut tool required - wachs part # 66-141-00
After the first ten hours of operation, the mainshaft
bearing preload should be checked. Remove the air
motor. Remove the 6,1/4-20 x 7/8 SHCS to remove
feed nut housing (66-002-00). Bend the lock washer
(66-034-00) tab clear from the locknut (66-033-00). In-
sert and tighten an old, used tool bit into one of the
slots on the cutting head. Clamp machine into a bench
vise. Using the lock nut tool and a torque wrench,
tighten locknut to 150 ft lbs. while rotating the main
housing. Once tight, re-secure lock washer tang into
the closest locknut slot. Replace feed nut housing and
fasteners.Replace and secure air motor.
After every ten hours of operations, inspect the man-
drel guide bushing for wear. Replace as necessary
NOTE: Excessive chatter may indicate a worn man
drel guide bushing
After 40 hours of operation, flush the air motor with a
solution of three parts cleaning solvent and one part air
motor oil. After flushing, add 1 oz. (30 cc) air motor oil
into air line and run air motor for one minute. It is very
important that the components of the mandrel assem-
bly remain clean and free from corrosion. The legs and
machine surfaces should be cleaned and oiled on a
daily basis.
MANDREL STRESS INSPECTION PROCEDURE:
1. The mandrel should be removed from the machine
body and inspected after every twenty hours of
operation.
2. Remove the drawbar nut (# 66-025-00) and the collar
nut (# 66-024-00).
3. Remove the mandrel from the machine body by
rotating the feed handles counter clockwise.
4. Physically examine the mandrel and threads, look for
any signs of wear or damage.
5. Measure the length of the threaded drawbar. If the
drawbar length is 21-1/2”, the drawbar may remain in use.
If the length of the drawbar is equal to or exceeds
22” in
length the drawbar is no longer safe and should be re-
placed.
SECTION VI FF 424 MAINTENANCE
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