Bosch RH540S Specifications download pdf (Page 9)

7.11.3,&22*7.3,

used for drilling with solid

carbide bits and core bits

&22*7.3,31>

used for chipping

and demolition work

!&7.44(0

allows chisel to be set in one of 12

positions (right or left “0” position)

FIG. 4

 

The tool has a internal pre-set slip clutch.

The output spindle will stop rotating if the

accessory binds and overloads the tool.



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

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.

-9-

5*7&9.3,3897:(9.438

"

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.

!

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.

!

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.

!@!A

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.

BM 1619P11323 04-13_BM 1619P11323 04-13.qxp 4/23/13 7:12 AM Page 9

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