909 H144L1 Buku Petunjuk - Halaman 14

Jelajahi secara online atau unduh pdf Buku Petunjuk untuk Bor 909 H144L1. 909 H144L1 17 halaman. 14.4v sds plus pneumatic action variable speed hammer drill driver

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drilling action is really a chiselling action, and constant

backward and forward movement of the drill bit is required.

The pneumatic hammer drill / driver performs this task. If

you push too hard, the chisel action is restricted and the

performance is reduced.

Allow just a little more than the weight of the drill itself to

load the drill bit.

When drilling concrete, try and avoid reinforcing steel where

possible.

During the drilling operation, constantly remove the drill bit

from the hole, with the drill running at full speed, to assist in

clearing drilling dust from the hole.

Note.

If this is not done, on deep holes the dust can

compact, jamming the bit and overloading the tool.

Drilling steel and wood

Drilling into steel and wood and other similar materials

should not use the hammer selection.

Move the selector to the drill /

screw position

Drill bits are available in HSS

with the hex drive mounting,

or standard type drill bits are

available along with a standard

3-jaw chuck with SDS Plus

mount facilities at larger retail

outlets and tool specialists. (Not

supplied with the H144L1)

Note.

Do not use a 3-jaw chuck in hammer mode.

For hex drive drill bits, fit the driver attachment supplied with

the kit into the SDS Plus chuck and fit the drill bit directly

into the driver attachment.

When using the tool in the drill (non-hammer position),

locate the position for the hole with a centre punch mark or

pencil line for timber.

Start the hole on slow speed and as the drill enters the work

piece increase the speed until full speed is reached.

Drill the hole at full speed with the trigger fully depressed.

Refer to the drilling section for further drilling hints.

Note.

Always wear eye protecting when drilling, along with a

dusk mask and ear muffs.

Inserting and removing accessories

The drill is fitted with an SDS Plus drill system chuck. All

direct fitting accessories must have the same SDS Plus

system.

To insert an accessory, hold the

body of the drill (not the plastic

sleeve of the chuck) and fit the

accessory into the hole of the

SDS Plus chuck and push firmly

while rotating the accessory until

it drops fully into the chuck and

"clicks" into position.

Pull the accessory outwards to ensure the bit is retained.

Note.

The bit will move in and outward in the chuck, but

should not fully detach.

To remove the accessory, slide

the outer plastic chuck sleeve

towards the drill and pull the

accessory outward to remove the

accessory from the chuck.