Huvema HU 20 SUPER, Manual

Page: 8 / 16

8
CHANGES AND T YPING ERRORS RESERVED CHANGES AND T YPING ERRORS RESERVED CHANGES AND T YPING ERRORS RESERVED
7.3 D
rill DepTh aDjUsTmenT
To prevent the drill from going too deep into the work piece, you can set the
feeding limit by adjusting the position of the feed depth knob
(A, figure 8).
• Loosen knob A
• Turn scaled ring B to the desired feeding depth
• Lock knob A
7.4 s
peeD
s
elecTion
Drill
diameter
(mm)
Material
Cast Iron Steel Iron Aluminium Alloy Copper
Drilling Drilling Drilling Drilling Drilling
2 4780 1275 3980 7960 4460
3 3185 850 2650 5310 2970
4 2390 640 1990 3980 2230
5 1910 510 1590 3185 1785
6 1590 425 1330 2655 1485
7 1365 365 1140 2275 1275
8 1195 320 995 1990 1115
9 1060 285 885 1770 990
10 955 255 800 1590 890
11 870 230 725 1450 910
12 795 210 665 1330 745
13 735 195 610 1225 685
14 680 180 570 1135 635
15 640 170 530 1060 600
16 600 160 500 995 560
17 560 150 470 935 525
18 530 140 440 885 495
19 500 135 420 835 470
20 480 130 400 795 445
25 380 100 320 640 355
30 320 85 265 530 300
40 240 65 200 400 225
7.5 v
belT aDjUsTmenT
• Loosen knob B on both sides of the headstock.
• Push handle A forward to increase the belt tension, back to decrease the tension.
• Lock knob B firmly again.
3-2.
Operation illustration and procedure :
1. There are three T grooves in the worktable. It is used to fix the work piece.
1-1.There are two T grooves in the base, too. It is convenient for fixing the longer, heavier and larger
working piece.
OPTION
2. The pulley cover is strictly prohibited to open in normal operation condition.
3. Protect safety guard shall be allocated in a proper position in operation. It is controlled by a micro
witch. (For CE)
4. Adjustment of feeding limit
To prevent unwanted penetration to work piece, the feeding limit
shall be set by adjusting the appropriate position of feeding depth
fixing button as long as the distance between the end of tool and
top surface if work piece is measured.
A. Setting of feeding depth
1. Loosen knob A.
2. Turn scaled ring B to desired feeding depth.
3. Lock knob A.
15
Lock
Loose
JTD-16series
1. Loosen knob B on both sides of headstock.
2. Push handle A forward as arrow sign to get belt tension.
3.Lock knob B firmly to fix belt tension.
When speed change is required. Loosen lead bolt (parts no. 22-S2) on both side of headstock. Pull belt
handle (parts no. 26) to allow belts repositioning and then move belts to correct groove to acquire
desired speed. See following speed chart for reference.
JTD-16S JTD-16SA
For proper belt tension, use 10 1bs pressure or hand pressure on the belt as shown as bellow.
Models belt model tables
17
Machine model Belt specifications Quantity
JTD-16S A-42 1
JTD-16SA A-25 / A-26 2
B
A
Figure 8
Figure 9