Translation of the Original Operating
Instructions TBH Bench Drill
Dear Customer,
The PROXXON TBH bench drill with a drill chuck range of up to 10 mm is a
high-grade precision drilling tool designed for a range of industrial materials.
Before using the drill, read the enclosed safety regulations and operating
instructions for information on the safe and proper operation of the drill.
General overview
1. Chuck key
2. Fastening bolt for cover hood
3. Cover hood
4 Drill lever
5. On/off switch
6. Drill chuck
7. Depth display
8. Bit stop locking bolt
9. Drill column locking bolt
10. Extension arm locking bolt
11. Extension arm
12. Height adjustment crank
13. Drill column
14. Key surface (SW 17)
Description
The TBH bench drill was designed for maximum precision, performance
and ease of use and offers an impressive range of characteristics:
• Plano-milled workbench made of high-grade, ultra-ribbed aluminium die-
cast.
• Sturdy chromium-plated steel column.
• Convenient crank mechanism height adjustment as an auxiliary to centre
sleeve lift.
• Lock-type bit stop with dial.
• Three-speed operation geared to drive belt position, with six-fold torque
in lower speed range.
• Drill spindle with high-grade, precision ball bearings (non-free-floating).
• 10 mm drill chuck (included), plus collet chuck retainer in the spindle end
(collet chucks available as accessories).
Technical data:
Dimensions:
Working radius
140 mm
Workbench
200 x 200 mm
Max. bench surface distance to drill chuck
230 mm
Centre sleeve lift
63 mm
Auxiliary height adjustment via crank
70 mm
Motor:
Voltage
230 volt
Output
300 watt
Idle speed
1,080, 2,400 and 4,500 rpm
Cut-off
KB 5 min
Noise level
≤
70 dBA
Effective acceleration
≤
2.5 m/s
2
Please do not dispose off the machine!
Read all instructions and safety
rules!
Wear safety glasses!
Operation
Important!
Ensure that the drill is securely mounted on a stable support before
putting it into operation.
Caution!
Unplug the drill before changing application tools and before all
adjusting operations!
Clamping bit in drill chuck
1. Insert chuck key in drill chuck 6 (Fig. 1).
2. Turn chuck key counter-clockwise to open chuck.
3. Push bit into chuck to bit stop.
4. Turn chuck key clockwise to close chuck.
Note:
Close chuck without completely securing bit to check for proper seating of
bit, then secure bit tightly.
Important!
Remember to remove chuck key following chucking.
Removing and installing drill chuck
Note:
We recommend collet chucks (available as accessories) for precision-true
drilling operations that the standard drill chuck is unable to perform. When
using collet chucks, it is first necessary to remove the standard drill chuck.
1. Lock spindle to key surface
14
(Fig. 1) using fork
spanner (SW 17).
2. To unscrew chuck (counter-clockwise) or to screw chuck in (clockwise),
insert chuck key, which acts as lever.
Tighten bit in collet chuck (accessory)
Important!
Tightening the collet chuck without inserting a suitable drill shank will
result in damage to the collet chuck.
1. Lock spindle to key surface
14
(Fig. 1) using fork
spanner (SW 17).
2. Unscrew union nut.
3. Insert suitable collet chuck together with drill shank and tighten union
nut.
Note:
Tighten all application tools for minimal protrusion. Over-protruding shanks
bend easily and result in out-of-round running.
Set spindle speed
Caution!
Unplug drill before performing this operation! Never operate drill with-
out protective cover.
Note:
Optimal performance results from uniform, correct speed and not from
excessive pressure.
Belt position “A” (Fig. 2)
= 1,080 rpm.
Belt position “B”
= 2,400 rpm.
Belt position “C”
= 4,500 rpm.
- 6 -
GB
