7
DO NOT operate the drill if any parts are damaged or missing as this may cause failure and/or possible personal injury.
7
DO NOT leave the drill operating unattended and avoid unintentional starting.
7
DO NOT operate the drill when you are tired, under the influence of alcohol, drugs or intoxicating medication.
3
When not in use switch the drill off, remove plug from the power supply and do not leave until the drill has come to a complete stop.
3. TECHNICAL SPECIFICATIONS
2. DESCRIPTION
The GDM120B/VS (bench mounted) variable speed drill allows stepless electronic control of drilling speed between minimum and
maximum enabling finer control of finish and tolerance. The regular belt and pulley system is supplemented by a varistor which
regulates power to the motor. Suitable for light industrial, agricultural and wood working applications. Safety devices fitted include
a no load voltage release switch, which has insurance company approval for use in educational establishments.
4. CONTENT & ASSEMBLY
4.1. Package content
Unpack parts listed below and check to ensure they are in good condition. Any shortage or damage must be reported to your dealer immediately.
3
Head Assembly
3
Base
3
Chuck and Key
3
Feed Handles and Knobs (3)
3
Table Arm, Bracket
3
chuck Arbor
3
Rack and Rack collar
3
Safety Guard
3
Table
3
Height/speed adjusting handle (2)
3
Table bracket clamp bolt
3
Table arm clamp bolt
3
Knob and screw, upper pulley cover
3
Base screw and washers (4)
3
Hex key
Chuck size (mm) . . . . . . . . . . . . . . . . . .16mm
Spindle Nose Taper . . . . . . . . . . . . . . . . .MT2
Swing (mm) . . . . . . . . . . . . . . . . . . . . .410mm
Distance Chuck to Upright Face . . . . .169mm
Spindle Travel . . . . . . . . . . . . . . . . . . . .78mm
Number of Speeds . . . . . . . . . . . . . . .Variable
Speed Range (rpm) . . . . . . . . . . .450-2500rpm
Max distance Spindle to Table . . . . . . .440mm
Max distance Spindle to Base . . . . . . .610mm
Working Table Diameter . . . . . . . . . .290Ømm
Working Base surface size . . . . . .205-205mm
Overall Base size . . . . . . . . . . . . .250x440mm
Column Diameter . . . . . . . . . . . . . . . . .73mm
Overall Height . . . . . . . . . . . . . . . . . .1000mm
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .230V
Note: Figures are illustrative and may differ in detail from your drill.
4.2.
Assembly
4.2.1. Place the column assembly on the base, align holes and secure with the bolts and washers provided.
4.2.2. Fit table adjustment handle (fig 1.A) to table arm (1) and install rack (2) so that it runs on the gear inside
of table arm (1), install arm (1) onto column (3), together with rack engaged in the gear.
4.2.3. Install rack collar (fig 2.4) and tighten firmly holding the top of the rack in place.
4.2.4. Install pivoted clamp bolt (the longer of the two - fig.2.B).
4.2.5. Install the table (fig 3.5) and table pivoted clamp bolt (6).
4.2.6. Carefully place the head assembly over the column and slide it into position. Align head with base.
4.2.7. Lock the head by tightening the two grub screws (fig 4.7) with hex key provided.
4.2.8. Screw the three feed handles (fig 5.8) and knobs (9) to the hub of the pinion shaft.
4.2.9. To install chuck (fig 5.10) open the chuck jaws completely by turning the chuck key counter-clockwise. Place a piece of wood (E)
on the drill table (to prevent the chuck from getting damaged).
Insert long tapered end of arbor (fig 5.11) into drill spindle, fit chuck to protruding end of arbor and hold in place.
Turn feed handles to bring nose of chuck down onto wood (E). Firmly pull on feed handle to seat arbor tapers in spindle and chuck.
4.2.10. Loosen clamp screw on safety guard mounting collar, pass guard up over chuck and fit collar round flange of quill shaft. Ensure guard
pivot is central and tighten clamp screw.
4.2.11. Open head cover and place screw through the hole in the side and firmly fix the cover knob to the screw (fig 4. X).
4.3.
Mounting the drill.
4.3.1.
For stability and safety it is important
that the drill base is securely screwed or bolted to the workbench.
4.3.2. Ensure that the mounting surface is capable of supporting the drill together with the weight of the heaviest likely workpiece.
fig. 2
fig. 3
fig. 4
fig. 5
fig. 1
p
WARNING! Ensure the drill is unplugged from the mains power supply before proceeding further.
5.1.
Install drill bit
5.1.1.
Insert drill bit into chuck jaws to 1" (25mm) deep (avoid inserting small bits too far) and centre bit in chuck before tightening.
5.2.
Adjusting the table
5.2.1.
To adjust table up or down, loosen the clamp bolt (fig.2.B) then turn the bracket handle (fig.2.A).
5.2.2.
To adjust table tilt, loosen the work table bolt on the underside of arm (fig.2.C), adjust to the desired angle, then retighten.
5.2.3.
To turn the table around the column, loosen the rack collar slightly (fig 2.4), then loosen the work table bolt (B). Turn the table to the
desired position then secure the bolt and rack collar.
5.3.
Adjusting the speed
5.3.1.
To adjust the speed ensure the drill is running. Turn handle (fig.6.12), and view speed on dial (13).
5.3.2.
Choose the speed for drilling operation (see drill speed chart - fig 8).
5. OPERATING INSTRUCTIONS
GDM120B/VS - 0016 - (3) - 111000
