Bolton Tools BT1340G/1, Operation Manual, Page: 21 / 55

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the end edge of the feed rod . Turn the socket head cap screw in a clockwise direction
as require. Care should be taken to avoid over adjustment ; every 45
0
turn at the
socket head cap screw represents approximately 0.125mm (0.05") taken up of back
lash .
(F) Cross slide and toolpost
Toolpost is carried on a rotatable swivel table fitted as standard onto the cross
slide, and the top of cross slide is graduated both - 45
0
~ 0 and 0 ~ 45
0
for accurate
indexing of swivel table.
Handle dials are graduated in Imperial or Metric division to suit the operating
feed screw and nut fitted.
(G) Tailstock
Tailstock can be set over for the production of shallow tapers or for realignment
by means of the tailstock set – over screw which are mounted in each slide of the
tailstock body, a similar but location screw is fitted in the rear face of the body .
Set – over adjustment is made as follows :
Unclamp the tailstock by operating
the clamp lever downward .
Slacken the rear location screw .
Then alternatively slacken one set – over screw
and tighten the other until the required setting is achieved .
Tighten the rear location screw and the set – over screw which is slackened
before, and reclamp the tailstock.
The quill of tailstock is locked by operating the quill clamping lever.
8.PREVENTIVE MAINTENANCE
8.1 DAILY INSPECTION
In principle the daily. Inspection of lathe is carried out on basis of each shift.
The inspection work according to the following item 1.1
1.1
Check before starting the motor.
1) Clean-up of machine: dust, chips and other articles should be removed from
sliding surface of machine to make the rotating or sliding parts performing
easy and smoothly. All other static parts be often also cleaned to avoid the
corrosion.
2) Greasing and oiling : regular oiling should be done every day (see