Bosch RH432VCQ Consignes De Fonctionnement/Sécurité page 11

2610048693.qxp_RH432VCQ 10/4/17 9:18 AM Page 11
All grease packed hammers require a short
time to warm up. Depending on the
temperature, this time will vary from
approximately 15 seconds (90° F) to 2
minutes (32° F). The tool will exert its full
power and hammering action after the heat
from impact hammering has spread, softening
the grease.
CARBIDE TIPPED BITS
Used for drilling stone, concrete, cement,
brick, cinder block and other unusually hard
non-metals. The Rotary Hammer is designed
for "SDS" Carbide Tipped Bits up to 3/4 inch
diameter.
3 JAW CHUCK
The 3 Jaw Chuck can convert your tool for
use with straight shank bits.
You will extend the life of your bits and do
neater work if you always put the bit in contact
with the workpiece BEFORE pulling the
trigger. During operation, hold the drill firmly
and exert moderate, steady pressure. Too
much pressure at low speed will stall the
hammer. Too little pressure will keep the bit
from cutting and cause excess friction by
sliding over the surface. This can be
damaging to the drill and bit.
Shanks of all drill bits should be wiped clean
prior to using and immediately after removing.
RECALL THESE INSTRUCTIONS FOR
SAFE OPERATION:
1. Some materials require slow drilling
speeds; whereas, others require higher speed
to produce the best results.
2. All work must be supported or secured
before drilling and steady, even pressure
applied in line with the drill bit.
For selection of dust collection systems and
operating instructions, see the Operating /
Safety Instructions for 'Dust Extraction
3. As the drill bit cuts through the opposite
side, reduce the pressure and continue
running the drill as the bit is withdrawn.
Materials such as glass, porcelain, ceramics,
tiles, plastics, etc., should be drilled at low
speeds with specially designed drill bits and
lubricants.
DRILLING WOOD OR PLASTIC
If backing block is not used, ease up on the
pressure just before the bit breaks through the
wood to avoid splintering. Complete the hole
from the opposite side immediately after the
point breaks through. If bit binds, reverse the
drilling operation to help remove the bit from
the work.
Make a center punch in the material for easier
starting. Use enough pressure to keep the bit
cutting. If the bit is allowed to merely spin in
the hole, it will become dull within a short time.
When drilling a larger hole, it is faster and
easier on your power pack to first make a
smaller hole and enlarge it to the required
size. Lubricate the tip of the bit occasionally
with CUTTING OIL for easier metal drilling. If
bit binds, reverse the drilling to help remove
the bit from the work.
Use carbide-tipped SDS-plus
block, mortar, common brick, soft stone and
other materials. The amount of pressure to be
used is dependent upon the type of material
being drilled. Soft materials require less
pressure while the hard materials need more
pressure to prevent the drill bit from spinning.
Dust Extraction
Attachments for Hammers and Hammer Drills'
included with your tool or with the dust
extraction attachment.
-11-
DRILLING METAL
DRILLING MASONRY
®
bit for cinder