Protective Device; Abnormalities During Operation; In Order To Maintain Performance - Hitachi EC1433H Handling Instructions Manual

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PROTECTIVE DEVICE

This compressor is equipped with the protective device which stops the operation automatically when any abnormality is
found in the voltage or motor. If the motor stops the operation, take an appropriate action with reference to the table below.
Cause
Voltage is tool low or high
○ Motor temperature went abnormallly high
○ Temperature in the control circuit has built up
to an abonormally high level
WARNING
If the protective device was activated when there were no apparent problems existing in the operating environment, stop
using the compressor and send it to your dealer or authorized service facility for checkups or repairs.

ABNORMALITIES DURING OPERATION

WARNING
If you detect any abnormalities, do not operate the
compressor.
If you encounter any of the following abnormal
phenomena, turn off the power switch immediately,
disconnect the power plug from the outlet and send the
machine to your dealer or authorized service facility for
checkups or repairs.
1. The following problems may occur even when there
are no problems with the power supply or wiring:
(See "PROTECTIVE DEVICE")
○ Turning on the power switch does not start up the
machine.
○ Motor vibration is generated
2. Abnormal sounds are generated during operation.
3. The safety valve instead of the pressure sensor is
activated, allowing the compressed air to blow out.
4. Air leakage happens.
5. Pressure does not increase.
6. An electrical shock-like pain is felt when touched
the metal part.
7. Other abnormalities than the above that is
recognized during operation.

IN ORDER TO MAINTAIN PERFORMANCE

1. Drain water from the machine.
After the work is fi nished, turn the handle of the pressure-
reduction valve clockwise and open the drain cock
gradually to drain the compressed air and water in the
air tank until the pressure gauge pointer of the pressure-
reduction valve points to 0.
○ Not draining the water will result in the inside of the
air tank becoming moldy, potentially leading to a
failure.
10
1. Turn the power switch off and disconnect the power plug from
the outlet.
2. Check and correct the connection to the power or extension
code (page 6), and then connect the power plug to the outlet
and turn the power switch on to resume the operation.
1. Turn the power switch off and disconnect the power plug
from the outlet.
2. Connect the power plug to the outlet and turn the power
switch on to resume the operation.
If the motor has suffi ciently cooled down, the resumed operation
may active the protective device soon after. In other cases, the
operation may not resumed when you turned the power switch on.
In such a case, wait for about 30 minutes for the motor to cool own
before restarting the machine.
2. Implement the machine inspection on a regular
basis.
The User is requested to implement cleaning and
inspection of the machine in order to maintain its
performance. Please do not hesitate to let your dealer or
authorized service facility inspect your machine.
3. Handle this machine carefully.
Dropping the machine inadvertently, bumping it against
solid objects or hitting it can cause deformation, cracks or
damage to the machine. The User is advised not to invite
an accident by dropping, bumping or hitting the machine.
4. Inspect the machine every time you use it.
Check and inspect the machine in conformance with
the procedure described in the "SAFETY WARNINGS"
provided on page 5 and after.
GUARANTEE
We guarantee Hitachi Power Tools in accordance with
statutory/country specifi c regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or normal
wear and tear. In case of complaint, please send the Power
Tool, undismantled, with the GUARANTEE CERTIFICATE
found at the end of this Handling instruction, to a Hitachi
Authorized Service Center.
Sound Pressure Noise
EC1433H LPA 72 dB (A)
For the European market, the compressors are manufactured
to meet Directive 2006/42/EC.
The sound generated by the workstation is indicated as
sound pressure level measured free-fi eld at a distance of
1m.
Wear hearing protection.
Action taken