Hitachi NV 90AG Handling Instructions Manual page 11

(4) In case of frequent jams, consult the Authorized Service
Center from which you bought this machine.
2. Check on mounting screws for each part
At regular intervals check every part for loose mounting
screws and whether or not there are any air leaks.
Retighten any loose screws. Operating the equipment
with loose screws untightened will incur a hazard.
3. Inspecting the push lever
Check if the push lever can slide smoothly (Fig. 18).
Clean up the sliding area of the push lever and use the
provided oil for lubrication from time to time. Lubrication
enables smooth sliding and simultaneously serves to
prevent the formation of rust.
4. Inspecting the feeders
(1) Occasionally clean the knob sliding part and then apply
the recommended oil (See Fig. 19).
(2) Open the nail guide and remove dust, etc., as shown
in Fig. 20. Apply lubricant to the sliding groove of the
feeder and shaft. Check the nail stopper (A) and nail
stopper (B) slide smoothly by pushing them with your
fi nger.
(3) Also, apply the recommended oil to the feeding sur face
of the nose and nail guide after cleaning. This promotes
smooth operation and retards corrosion.
CAUTION
Check for smooth movement of the feeders and
stoppers before use. If movement is uneven, nails could
be fi red at an irregular angle, presenting a hazard to the
operator and others nearby.
5. Inspecting the magazine
Clean the magazine. Remove dust of wooden chips
which may have accumulated in the magazine.
6. Storing
○ When not in use for an extended period, apply a thin
coat of the lubricant to the steel parts to avoid rust.
○ Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area.
○ When not in use, the Nailer should be stored in a warm
and dry place.
Keep out of reach of children.
7. Service parts list
CAUTION
Repair, modifi cation and inspection of Hitachi Power
Tools must be carried out by a Hitachi Authorized
Service Center.
This Parts List will be helpful if presented with the tool to
the Hitachi 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.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without prior
notice.
COMPRESSOR
CAUTION
When the maximum, operating pressure of the air
compressor exceeds 8.3 bar (120 psi.), be sure to
provide a reducing valve between the air compressor
and nailer. Then, adjust the air pressure within the
operating range of 4.9 – 8.3 bar (70 – 120 psi.). If the
air set is installed, lubrication is also possible, thus
providing additional convenience.
OILER-FILTER-REDUCING VALVE (Air Set)
So that the equipment can be operated under an optimum
condition to ensure extended service life, it is advisable
to use an oiler fi lter reducing valve. Please limit the length
of the hose between the unit and the air set to within 10m
when using (Fig. 21).
APPLICABLE LUBRICANTS
Type of lubricant
Recommended oil
Motor oil
Turbine oil
Noise Information
Noise characteristic values in accordance with EN 792-13:
The typical A-weighted single-event sound power level
The typical A-weighted single-event emission sound
pressure level at work station
Uncertainty KpA: 2.5 dB (A)
These values are tool-related characteristic values and do
not represent the noise development at the point of use.
Noise development at the point of use will for example
depend on the working environment, the workpiece, the
workpiece support and the number of driving operations,
etc.
Depending on the conditions at the workplace and the form
of the workpiece, individual noise attenuation measures
may need to be carried out, such as placing workpieces on
sound-damping supports, preventing workpiece vibration
by means of clamping or covering, adjusting to the minimum
air pressure required for the operaion involved,etc.
In special cases it is necessary to wear hearing protection
equipment.
Vibration Information
The typical vibration characteristic value in accordance
with EN 792-13: 3.8 m/s
2
Uncertainty K: 1.5 m/s
2
This values is a tool-related characteristic value and does
not represent the infl uence to the hand-arm-system when
using the tool. An infl uence to the hand-arm-system when
using the tool will for example depend on the gripping
force, the contact pressure force, the working direction, the
adjustment of energy supply, the workpiece, the workpiece
support.
English
Name of lubricant
SHELL TONNA
SAE10W, SAE20W
ISO VG32 – 68
(#90 – #180)
LWA,1s,d = 104 dB.
LpA,1s,d = 96 dB.
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