B-16
Cautions in making piping connection (Continued)
WARNING
When the piping connection work for the wheel coolant water and spindle
coolant water is completed, check looseness of connections for the joints
If water leakage should occur, the floor surface and downstairs might be damaged.
Lock out the water and air valves before you proceed to installation/
maintenance of the machine
If any air valve or water valve at the plant facility side is opened by other persons
during machine installation or maintenance, it may cause an accident or machine
failure.
CAUTION
A hose or hard piping line between the machine exhaust duct port and the facility
exhaust system (such as duct unit) must be properly inclined
Also, use props or the like to support the hose as needed. If it is not properly inclined,
water may build up in the duct hose, preventing smooth discharge of exhaust from the
machine. This may cause mist leakage from the grinding chamber and resultant
serious machine failure.
[Good example]
Inclining the hose prevents water buildup in the hose.
Ensure that the air hose is properly installed
If the air hose is disconnected while the spindle is rotating, the spindle may seize up.
