Delta 11-990 Instruction Manual Page 10

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10
13. IMPORTANT: Make certain the spindle taper (Q) Fig.
17, and tapered hole in chuck (R) are clean and free of
any grease, lacquer or rust preventive coatings. NOTE:
Household oven cleaner can effectively remove any sub-
stance from the spindle and chuck; however, carefully
follow the manufacturer's safety rules concerning its
use.
14. IMPORTANT: OPEN THE CHUCK JAWS AS WIDE
AS POSSIBLE MAKING SURE THE CHUCK JAWS
ARE UP INSIDE CHUCK.
15. Carefully drive chuck (S) Fig. 18, onto the spindle
with a block of wood and hammer, or a rubber mallet (T)
as shown. This will seat the chuck properly on the
spindle. IMPORTANT: To avoid damage to the chuck,
NEVER drive the chuck onto the spindle with a metal
hammer.
Fig. 17
Fig. 18
16. Lift up the motor pulley cover (A) Fig. 19.
17. Loosen the tension lock knob (B) Fig. 19, and pivot
the motor toward the front of the drill press as shown.
18. While holding the motor toward the front of the drill
press head, position the belt (C) on the desired steps of
the motor and spindle pulleys, as shown in Fig. 19. A belt
positioning chart (D) is provided on the inside top cover
of the drill press for your convenience.
19. After the belt is positioned on the desired steps of
the motor and spindle pulleys, pivot motor away from the
drill press head until the belt is properly tensioned and
tighten tension lock knob (B) Fig. 19. The belt should be
just tight enough to prevent slipping. Excessive tension
will reduce the life of the belt, pulleys and bearings.
Correct tension is obtained when the belt (C) can be
flexed about one inch out of the line midway between the
pulleys using light finger pressure.
20. Place the magnetic base lamp (A) Fig. 20, on the left
side of the drill press head.
21. Install a 40 watt or less, 120 volt, reflector track type
light bulb (not supplied), into the magnetic base lamp.
WARNING: To reduce the risk of fire, use 40 watt or
less, 120 volt, reflector track type light bulb (not
supplied). A standard household light bulb should not be
used. The reflector track type light bulb should not
extend below the lamp shade.
22. Plug the magnetic base lamp into a 110-120 Volt, 60
HZ receptacle.
CAUTION: Make sure that the power cord for the
magnetic base lamp is clear of all moving parts on the
drill press.
A
Fig. 19
B
C
D
Fig. 20
Q
R
S
T
A
B
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