Bosch RH540M Instrucciones De Funcionamiento Y Seguridad página 9

BM 1619P11323 04-13_BM 1619P11323 04-13.qxp 4/23/13 7:12 AM Page 9
TRIGGER "ON-OFF" SWITCH
To turn the tool "ON" squeeze the trigger
switch. To turn the tool "OFF", release the
trigger switch, which is spring loaded and will
return to the "OFF" position automatically.
To increase switch life, do not turn switch on
and off while tool is under load.
VARIAbLE SPEED DIAL
Your tool is equipped with a variable speed
dial. The speed and impact force can be
adjusted by rotating the dial. Higher speeds
and impact force work best for faster
penetration when drilling or chiseling in hard
masonry material. Slower speeds work best to
reduce breakout when bits exit material being
drilled or chiseling material such as plaster or tile
(Fig. 1).
Regardless of the pressure applied on the
trigger, the tool will not operate any faster than
maximum speed setting selected.
Drilling/Hammering:
used for drilling with solid
carbide bits and core bits
SLIP CLUTCH
The tool has a internal pre-set slip clutch.
The output spindle will stop rotating if the
accessory binds and overloads the tool.
"TOOL TIPS"
For the best penetration rates in concrete,
run the tool with a steady pressure, but do
not use excessive force as this will decrease
the efficiency of the tool.
All hammers require a short period of time to
warm up. Depending on the room
temperature, this time may vary from
approximately 15 seconds (90˚F) to 2
All manuals and user guides at all-guides.com
Operating Instructions
The selector lever allows the tool to be set for
various applications as listed in the following
chart, (Fig. 4).
When using demolition or chipping bits such
as bull points, chisels, spades, gouges, etc.
the "Hammer Only" mode must be selected.
The vario-lock can be set in any one of twelve
positions (30˚ increments). Choose a position
which is best suited for your operation. The
Vario-Lock position is intended for use with
chipping bits such as bull points, spades,
gouges, etc.
Turn the selector lever, to the "vario-lock"
setting. Next, rotate the locking sleeve,
along with the accessory, to the desired
position. Then turn the selector lever to the
"hammer only" setting and slightly turn the
locking sleeve to have it automatically lock
into a definite position.
FIG. 4
Vario-Lock:
allows chisel to be set in one of 12
positions (right or left "0" position)
minutes (32˚F). A new hammer requires a
break-in period before full performance is
realized. This period may require up to 5
hours of operation.
A combination hammer is likely to be the
most expensive portable tool at the
construction job. The long wear and efficient
operation of the BOSCH hammers will more
than justify the cost for tools of this type. As
earlier pointed out, sharp accessories as well
as clean air vents are necessary for efficient
operation. Establish and follow a set
maintenance program.
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SELECTOR LEVER
SELECTOR LEVER - "VARIO-LOCK"
Hammering Only:
used for chipping
and demolition work