![Draper 94803 Скачать руководство пользователя страница 15](http://html1.mh-extra.com/html/draper/94803/94803_manual_2527884015.webp)
9. SETTING
THE
DRILL
6. TECHNICAL
DESCRIPTION
Motor.
Pulley
cover.
Guard.
Plunge handle assembly.
Geared
chuck.
Work
table.
Rack.
Column.
Base.
No-volt on/off switch.
Table height crank handle.
- 10 -
- 15 -
6.1 IDENTIFICATION
FIG.9
FIG.10
NOTE:
Remove the plug from the socket before
carrying out adjustment, servicing or maintenance.
9.1 SPINDLE SPEED ADJUSTMENT
FIGS. 9 - 10
This drilling machine is equipped with 12 drilling speeds.
Remove the pulley cover securing screw.
Select the speed most suitable for the intended
application
†
.
Loosen both the locking knobs and adjust the motor
tension lever releasing the tautness across the drive
belts.
Move the belt to the corresponding sections of the
motor, intermediate and spindle pulleys ensuring the
belts remain horizontal.
Apply pressure to the motor tension lever to tension
the drive belt. With the correct tension achieved.
Tighten both locking knobs.
Gently lower the pulley cover before tightening pulley
cover securing screw.
Never attempt to operate the drilling machine with the
pulley cover open or not fully secured.
CAUTION:
Over tensioning the drive belt will
accelerate belt wear, increase the loading on drive
bearings and the motor possibly leading to premature
failure. Under tensioning the drive belt will lead to the
drive belt slipping and increased noise.
†
As a general rule material with a softer composition
can be drilled faster as they cut more easily. Harder
materials require a slower speed as attempting to
make the hole at a high speed will result in the drill bit
over heating which may result in a poorly finished hole,
the bit annealing or the bit breaking.
Drilling wood too slowly can cause splintering.
MOTOR
PULLEY
INTERMEDIATE
PULLEY
SPINDLE
PULLEY
A
B
C
D
1
2
3
4
1
2
3
4
Slow
1
Fast
12
Setting
1
2
3
4
5
6
7
8
9
10
11
12
Speed
230 min
-1
330 min
-1
370 min
-1
460 min
-1
530 min
-1
580 min
-1
1,030 min
-1
1,160 min
-1
1,280 min
-1
1,600 min
-1
1,790 min
-1
2,470 min
-1
Drive Belt Position
Spindle
A - 1
B - 2
A - 1
C - 3
B - 2
A - 1
D - 4
C - 3
B - 2
D - 4
C - 3
D - 4
Motor
4 - 4
4 - 4
3 - 3
4 - 4
3 - 3
2 - 2
3 - 3
2 - 2
1 - 1
2 - 2
1 - 1
1 - 1