Additional Safety Warnings - Hitachi CR 13V2 Bedienungsanleitung

RECIPROCATING SAW SAFETY
WARNINGS
1. Hold power tool by insulated gripping surfaces,
when performing an operation where the cutting
accessory may contact hidden wiring or its own
cord.
Cutting accessory contacting a "live" wire may make
exposed metal parts of the power tool "live" and could
give the operator an electric shock.

ADDITIONAL SAFETY WARNINGS

1. Ensure that the power source to be utilized conforms
to the power requirements specifi ed on the product
nameplate.
2. Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the power
switch is in the ON position, the power tool will start
operating immediately, which could cause a serious
accident.
3. When the work area is removed from the power source,
use an extension cord of suffi cient thickness and rated
capacity. The extension cord should be kept as short as
practicable.
4. Prior to cutting into walls, ceilings or fl oors, ensure there
are no electric cables or conduits inside.
5. Dust produced in operation
The dust produced in normal operation may aff ect the
operator's health. To wear a dust mask is recommended.
6. Mounting the blade (Fig. 1)
This unit employs a detachable mechanism that enables
mounting and removal of saw blades without the use of a
wrench or other tools.
○ Turn on and off the switching trigger several times so
that the lever can jump out of the front cover completely.
Thereafter, turn off the switch and unplug the power
cord.
Be absolutely sure to keep the switch turned off and the
power cord unplugged to prevent any accident.
○ Pull the back of the saw blade two or three times by hand
and check that the blade is securely mounted. When
pulling the blade, you will know it is properly mounted if it
clicks and the lever moves slightly.
When pulling the saw blade, be absolutely sure to pull it
from the back. Pulling other parts of the blade will result
in an injury.
7. Never touch the saw blade immediately after use. The
metal is hot and can easily burn your skin.
8. When the blade is broken
Even when the saw blade is broken and remains inside
the small slit of the plunger, it should fall out if you push
the lever in the direction of the arrow mark, and face the
blade downward. If it doesn't fall out itself, take it out
using the procedures explained below.
(1) If a part of the broken saw blade is sticking out of the
small slit of the plunger, pull out the protruding part and
take the blade out.
(2) If the broken saw blade is hidden inside the small slit,
hook the broken blade using a tip of another saw blade
and take it out.
9. Although this unit employs a powerful motor, prolonged
use at a low speed will increase the load unduly and
may lead to overheating. Properly adjust the saw blade
to allow steady, smooth cutting operation, avoiding any
unreasonable use such as sudden stops during cutting
operation.
10. Maintenance and inspection of saw blade mount
○ After use, blow away sawdust, earth, sand, moisture,
etc., with air or brush them away with a brush, etc., to
ensure that the blade mount can function smoothly.
○ As shown in Fig. 3, carry out lubrication around the
blade holder on a periodic basis by use of cutting fl uid,
etc.
○ Continued use of the tool without cleaning and lubricating
the area where the saw blade is installed can result in
some slack movement of the lever due to accumulated
sawdust and chips. Under the circumstances, pull a
rubber cap provided on the lever in the direction of an
arrow mark as shown in Fig. 3 and remove the rubber
cap from the lever. Then, clean up the inside of the
blade holder with air and the like and carry out suffi cient
lubrication.
The rubber cap can be fi tted on if it is pressed fi rmly onto
the lever. At this time, make certain that there exists no
clearance between the blade holder and the rubber cap,
and furthermore ensure that the saw-blade-installed
area can function smoothly.
○ Do not use any saw blade with a worn-out blade hole
(A). Otherwise, the saw blade can come off , resulting in
personal injury. (Fig. 4)
11. How to use
○ Avoid carrying it plugged to the outlet with your fi nger on
the switch. A sudden startup can result in an unexpected
injury.
○ Be careful not to let sawdust, earth, moisture, etc., enter
the inside of the machine through the plunger section
during operation. If sawdust and the like accumulate in
the plunger section, always clean it before use.
○ Do not remove the front cover.
Be sure to hold the body from the top of the front cover.
○ During use, press the base against the material while
cutting.
Vibration can damage the saw blade if the base is not
pressed fi rmly against the workpiece.
Furthermore, a tip of the saw blade can sometimes
contact the inner wall of the pipe, damaging the saw
blade.
○ Select a saw blade of the most appropriate length.
Ideally, the length protruding from the base of the saw
blade after subtracting the stroke quantity should be
larger than the material (see Fig. 7).
If you cut a large pipe, large block of wood, etc., that
exceeds the cutting capacity of a blade; there is a risk
that the blade may contact with the inner wall of the pipe,
wood, etc., resulting in damage.
○ To maximize cutting effi ciency for the materials you are
using and working conditions, adjust the speed of the
saw blade and the switching to swing cutting.
Cutting
○ Press the base fi rmly against the workpiece.
○ Never apply any unreasonable force to the saw blade
when cutting. Doing so can easily break the blade.
○ Fasten a workpiece fi rmly before operation. (Fig. 8)
○ When cutting metallic materials, use proper machine
oil (turbine oil, etc.). When not using liquid machine oil,
apply grease over the workpiece.
The service life of the saw blade will be drastically
shortened if you don't use machine oil.
○ Never apply any unreasonable force to the saw blade
when cutting. Also remember to press the base against
the lumber fi rmly.
Sawing curved lines
○ We recommend that you use the BI-METAL blade
mentioned in Table 2 for the saw blade since it is tough
and hardly breaks.
○ Delay the feed speed when cutting the material into
small circular arcs. An unreasonably fast feed may break
the blade.
Plunge cutting (Fig. 9 and 10)
○ Avoid plunge cutting for metallic materials. This can
easily damage the blade.
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