HOWA MACHINERY H032M, Инструкция по эксплуатации

Страница: 44 / 52

-16-
4. Maintenance
4.1 Lubrication
The most frequent cause of chuck failure is insufficient or improper lubrication. If lubrication is
insufficient or if a non-specified lubricant is used, not only will wear be accelerated, the gripping
force will be inadequate, with the possibility of the work piece coming off during the cutting
operation. Adhere to the following guidelines for lubrication.
Lubrication Points
Recommended
Lubricant
Time of Lubrication
Grease nipples on
outside of chuck
body
MOLYKOTE EP
GREASE
Once every 8 hours,
but where coolant is constantly used,
once every 4 hours.
Recommended oil: MOLYKOTE EP GREASE
(supplied from Dow Corning Corporation)
4.2 Disassembly and Cleaning
Even with proper lubrication, fine chips or scale can enter the chuck to jam the area of the jaw
guide or draw sleeve, thus preventing smooth operation. Disassembly and cleaning must be
done on a regular basis every 1000 hours. When doing so, inspect carefully for parts wear and
breakage, replacing as necessary.
Insufficient lubrication will lead to lower gripping force and create
abnormal friction and seizure. If the cutting is done in such
conditions, the work piece will come off and may cause severe
injury or death to the operator and/or bystanders. Lubrication with
non-specified lubricants may also permit extraordinary corrosion
and/or wear and will lead to a loss of gripping force.
The operator and/or bystanders may be seriously injured or killed
if improper lubricants are used.
Improper lubricants may reduce gripping force of the chuck and
permit work pieces to fly out of the chuck.
Failure to use an anticorrosive coolant can cause rust build up
inside the chuck that increases friction. This may reduce gripping
force of the chuck and work pieces may fly out of the chuck. This
causes serious injury or death to the operator and/or bystanders,
as well as damage to the machine.
If the chuck interior becomes jammed with chips, the gripping
force will decrease or the jaw stroke will become short. If cutting is
performed under such a condition, the work piece may be
disengaged from the chuck, causing severe injury or death to the
operator and/or bystanders.
WARNING
WARNING
WARNING
WARNING