10
CHANGES AND T YPING ERRORS RESERVED
CHANGES AND T YPING ERRORS RESERVED
CHANGES AND T YPING ERRORS RESERVED
9. f
eeD
shafT
spring
Tension
The feed shaft return spring is set at the factory; however, during the life of the drill press you may want to adjust the
spring so that the feed shaft return pressure suits your operating needs.
Turn the machine off and disconnect it from the mains before maintenance or repairs are performed!
•
Take out the screw and take away the cover (figure 12).
•
Wipe off any oil on the spring lock cover so it does not slip when you hold the cover. Wear protective gloves.
•
Loosen the lock nut (figure 13 and 14) and pull the cover a little bit toward you (see figure 14), so that it comes free
of the spring cover lock slot (figure 15). Note: It is important to keep a good grip during this step. Letting go of the
cover will cause the spring to rapidly uncoil.
•
Rotate the cover counterclockwise to increase spring tension, or let the cover slowly unwind in a clockwise
direction to reduce spring tension.
•
Engage the next available spring cover lock slot and push the spring lock cover back.
•
Retighten the lock nut and replace the cover.
10. D
imensions
All dimensions in mm.
5-1.
Feed Shaft Spring Tension:
The feed shaft return spring is adjusted at thefactory; however, during the life of the drill pressyou may
want to adjust the feed shaft returnspring so the feed shaft return pressure suits youroperating needs.
To adjust the feed shaft spring tension:
1.
UNPLUG THE DRIL PRESS !
2. Wipe off any oil on the spring lock cover so itdoes not slip in your fingers when you hold the
cover from spinning (see
Figure 28
).
3.
While holding the spring lock cover against the side of the head stock so the cover stayssplined with
the locking lug; loosen the jam nut and loosen th
e cover nut approximately1⁄4" (see
Figure 30
).
4.
Put on heavy leather gloves to protect your hands from possible lacerations if the springuncoils
during the next step.
5.
Pull the cover outward just enough to disengage the spring-cover lock slot from thelocking lug. Note:
It is important to keep a good grip during this step. Letting go of thecover will cause the spring to
rapidly uncoil.
6.
Rotate the cover counterclockwise to increase spring tension, or let the cover slowly unwind in the
clockwise direction to reduce spring tension.
7.
Engage the next available spring-cover lock slot with the locking lug and hold the springlock cover
tightly against the side of the headstock.
8.
Snug the cover nut against the spring cover just until the nut stops, and then back offthe nut
approximately 1⁄3 turn, or just enough so there is no binding at complete spindletravel.
9.
Hold the cover nut and tighten the jam nut against the cover nut.
21
Figure 27
Figure 29
Figure 30
Figure 28
Lock Nut
Spring Lock
Cover
Spring Cover
Lock Slot
Screw
Wrench
Size 19mm
Figure 13
Figure 14
Figure 15
Figure 12
6.Specification;
Model
Item
JTD-19S
JTD-19SF
Drilling capacity
19mm
Tapping capacity
----------
Spindle taper
M.T.#2
Spindle travel
80mm
Spindle speed (rpm)
50 Hz
210
–
2500/min
Number of speeds
10 steps
Motor
0.37kW 400V 3Ph or 0.75kW 400V 3PH
Net weight (kgs)
N.W-80Kg
N.W-92Kg
Dimensions(m/m)
JTD-19S
JTD-19SF
A
1050
1730
B
410
C C=470 × c1=280 C=500 × c1=330
D
D=280 × d1=280
E
420
800
F
650
1280
G
620
H
180
I
80
T
12
22
HU 20 Super
HU 20F Super
Figure 16
