Mounting And Dismounting The Diamond Wheel; Cutting Procedures; Maintenance And Inspection - Metabo CM 4ST Instrucciones De Manejo

English
5. Mounting the diamond wheel
For details, refer to the item "Mounting and dismounting
the diamond wheel".
6. Confi rm that the cutting depth adjusting lever is securely
clamped.
7. Cutting depth adjustment (Fig. 1)
○ Loosen the cutting depth adjusting wing bolt and move
the base to adjust the depth.
○ Tighten the wing bolt securely after adjusting the cutting
depth.
CAUTION
○ Leaving the wing bolt loosened may result in injury.
Securely tighten the wing bolt after adjusting the cutting
depth.
○ When the cutting depth exceeds 20 mm, concrete, and
so on must be cut in two steps. Never try to cut in one
step; otherwise, the motor is liable to be overloaded and
damaged may result. Also, cutting effi ciency will be lower
in such an instance.
MOUNTING AND DISMOUNTING THE DIAMOND
WHEEL
CAUTION
○ Be sure to disconnect the attachment plug from the
power receptacle to avoid serious trouble.
○ Stop pouring water and select a moisture-free location for
the operation mentioned above.
1. Mounting the diamond wheel
(1) Thoroughly remove dust accumulated on the spindle and
washers.
(2) As shown in Fig. 2, the concave portions of washers (A)
and (B) must be on the diamond wheel side.
(3) Thoroughly clamp the bolt.
2. Dismounting the diamond wheel
Use the provided wrenches to remove the bolt. (Fig. 3)
CAUTION
A diamond wheel for mounting on this equipment must
have 20 mm internal diameter. No other sized diamond
wheel should be used.

CUTTING PROCEDURES

1. Set the machine body (base) on the material to be cut;
use the side on the base to align the diamond wheel with
the cutting line. (Fig. 4)
2. Turn the switch ON with the diamond wheel initially kept
off the material to be cut.
The power switch is turned ON when the trigger is pulled
by one's fi nger, and is turned OFF when the trigger is
released. The stopper is designed to prevent inadvertent
operation of the machine and the trigger will not operate
unless the stopper has fi rst been pushed in. Turn the
machine ON with the diamond wheel initially kept off
the material to be cut. The power switch is turned ON by
fi rst depressing and holding down the stopper, and then
pulling the trigger with one's fi nger. Once the trigger is
ON, the stopper may be released and the tool may be
operated by continuing to hold the trigger. The power
switch is turned OFF when the trigger is released.
CAUTION
○ Do NOT use the diamond wheel for cutting along curves
or at angles; otherwise, it may be damaged, resulting in
extremely shortened service life.
○ Before starting to cut, confi rm that the diamond wheel
has attained full-speed revolution.
○ Should the diamond wheel stop or make an abnormal
noise while operating, promptly turn OFF the switch.
6
○ Always take care in preventing the power cord from
coming near to the revolving diamond wheel.
○ When fi nished with a job, pull out the plug from the power
receptacle.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to switch power OFF and disconnect the plug
from the receptacle during maintenance and inspection.
Using cracked, deformed or damaged wheels can lead to
wheel breakage and resulting serious injury.
1. Inspecting the diamond wheel
Since use of a dull diamond wheel will cause motor
malfunctioning and degraded effi ciently, replace with a
new one without delay when abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all screws and ensure that they are
fully tightened. Should any of the screws be loosened,
retighten them immediately. Failure to do so could result
in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power
tool. Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes (Fig. 5)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brush with a new one having the same carbon brush No.
shown in the fi gure when it becomes worn to or near the
"wear limit". In addition, always keep carbon brushes
clean and ensure that they slide freely within the brush
holders.
5. Replacing carbon brushes
Remove the brush caps and carbon brushes. After
replacing the carbon brushes, do not forget to tighten the
brush caps properly.
6. Service parts list
CAUTION
Repair, modifi cation and inspection of metabo HPT
Power Tools must be carried out by an metabo HPT
Authorized Service Center.
This Parts List will be helpful if presented with the tool
to the metabo HPT authorized Service Center when
requesting repair or other maintenance.
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
MODIFICATION
metabo HPT Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without prior
notice.
NOTE
Due to metabo HPT's continuing program of research and
development, the specifi cations herein are subject to change
without prior notice.