CS6140, CS6140B Series Turning machine
Instructions
11-2
spindle fails to come to a dead stop the brake band needs to be tightened with the adjusting nuts. Care not to twist
the band. See Fig. 11-3.
Adjusting nut 2
Adjusting nut 1
Fig. 11-3 Brake band adjustment diagram
The spindle is supported on three bearings of which the front and middle bearings offer main support and rear
bearing offers assistant support.
In order to ensure the machining accuracy and cutting ability of the machine, play of spindle must be adjusted
carefully till radial run-out and axial slip are exactly as the machine requires (See Fig.11-4).
When it is necessary to adjust the spindle bearings, loosen nut (1) and nut (2). Be sure to remove the stop
washer prior to loosening nut (2). Adjust the spindle front bearing with nut (3) and middle bearing with nut (4) till a
proper play is reached. Finally tighten every nut again.
After completion of the above procedure, dry run of over one hour must be performed for the spindle. The
temperature of spindle in steady state should be no more than
70
℃
, otherwise readjustment must be made.
In order to keep balance and avoid vibration at non-load, a balancer is fixed to gear (5) of spindle. Every
machine undergoes a balance check prior to shipment from the factory. If it is balanced no balancer is fixed.
Torque from gear-shifting mechanical is transferred with a chain. The chain may stretch after a long use and
cause the speed plate to give an improper or wrong value. So it must be adjusted to tension by means of the
adjusting screws. See Fig. 11-5.
Summary of Contents for CS6140 Series
Page 16: ...CS6140 CS6140B Series Turning machine Instructions 4 3 Fig 4 2 Bearing location diagram ...
Page 31: ...CS6140 CS6140B Series Turning machine Instructions 6 2 Fig 6 1a Location of electrical parts ...
Page 33: ...CS6140 CS6140B Series Turning machine Instructions 6 4 Fig 6 2a Electric schematic diagram 1 ...
Page 34: ...CS6140 CS6140B Series Turning machine Instructions 6 5 Fig 6 2a Electric schematic diagram 2 ...
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