Hitachi H 41 Handling Instructions Manual Download

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STANDARD ACCESSORIES

1. Case ............................................................................. 1
2. Bull Point .................................................................... 1
3. Side Handle ................................................................ 1

Standard accessories are subject to change without
notice.

OPTIONAL ACCESSORIES (sold separately)

NOTE:

The round type bit with a collar cannot be attached.

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Crushing

(1) Bull point

Total length: 280, 450 mm

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Syringe (for chip removal)

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HITACHI Electric Hammer Grease A
500g (in a can)
30g (in a tube)

APPLICATIONS

Breaking concrete, chipping off concrete, grooving, bar
cutting, and driving piles.
Application examples:
lnstallation of piping and wiring, sanitary facility
installation, machinery installation, water supply and
drainage work, interior jobs, harbor facilities and other
civil engineering work.

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.

2. Grounding

This tool should be grounded while in use to protect
the operator from electric shock. The tool is equipped
with a three-conductor cord and grounding type
plug to fit the proper grounding type receptacle.
The green (or green and yellow) conductor in the
cord is the grounding wire. Never connect the green
(or green and yellow) wire to a live terminal.

3. Power switch

Ensure that the power switch is in the OFF position.
If the plug is connected to a power receptacle while
the power switch is in the ON position, the power
tool will start operating immediately, which could
cause a serious accident.

4. Extension cord

When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.

5. Installing tools
CAUTION:

Be sure to switch power OFF and disconnect the
plug from the receptacle to avoid serious trouble.

NOTE:

Concerning the tools such as bull points and cutters,
be sure to use separately sold genuine parts that
are designated by HITACHI.

(1) Wipe off and clean up the shank section of the tool,

and apply grease or machine oil onto it.

(2) Insert the shank section of the tool completely into

the hexagonal hole of the front cover at a state
where the slide grip is fully pulled in the direction
of

as shown in

Fig. 1

(3) Return the slide grip to its home position and make

sure that the tool is pulled and locked securely.

(4) Removal is carried out at a state where the slide

grip is fully pulled in the direction of

in a manner

similar to the case of installing the tool.

CAUTION:

Be sure to grip the handle and side handle during
work. Do not hold by the slide grip during work:
If you pull it by mistake, the bull point could jump
out.

HOW TO USE THE DEMOLITION HAMMER (Fig. 2)

1. After placing the tip of the tool in the base hole,

switch ON.

2. By utilizing the weight of the machine and by firmly

holding the demolition hammer with both hands,
one can effectively control the subsequent recoil
motion.

Proceed at a moderate work-rate, the use of too much
force will impair efficiency.

HOW TO REPLACE GREASE

This machine is of full air-tight construction to protect
against dust and to prevent lubricant leakage. Therefore,
the machine can be used without lubrication for long
periods. Replace the grease as described below.

1. Grease Replacement Period

After purchase, replace grease after every 6 months
of usage. Ask for grease replacement at the nearest
authorized Hitachi Service Agent. Proceed for
replacement of grease.

2. Grease Replacement
CAUTION:

Before replacing the grease, turn the power off and
pull out the power plug.

(1) Remove the crank cover and wipe off the grease

inside. (

Fig. 3

)

(2) Supply 10g of Hitachi Electric Hammer Grease A

to the crank case.

(3) After replacing the grease, install the crank case

securely.

NOTE

The Hitachi Electric Hammer Grease A is of the low
viscosity type. When the grease is consumed, purchase
from an authorized Hitachi Service Agent.