Inspection And Maintenance - Hitachi Koki NV 50AF3 Mode D'emploi

English
4. How to cut off connected sheet
Tear off the output connected sheet in the direction of the
arrow when using the connected sheet nails (Fig. 18).

INSPECTION AND MAINTENANCE

CAUTION
Be sure to disconnect the hose during cleaning
jams, inspection, maintenance and cleaning.
1. Countermeasure for nail jamming
(1) Remove the nail roll from the magazine, open the nail
guide, insert a rod into the nail outlet and tap the rod
with a hammer (Fig. 19).
(2) Remove the jammed nail with slotted-head screw-
driver (Fig. 20).
(3) Cut off the defective part of the steel wire and plastic
sheet which links the nails with cutting nippers, correct
the deformation, then load the nail roll in the magazine.
(4) In case of frequent jam, consult the Authorized Serv-
ice Center from which you bought this nailer.
2. Check on mounting screws for each part
At regular intervals check every part for loose mount-
ing screws and whether or not there are any air leaks.
Retighten any loose screws. Operating the nailer with
loose screws untightened will incur a hazard.
3. Inspecting the push lever
Check if the push lever can slide smoothly (Fig. 21).
Clean up the sliding area of the push lever and use the
provided oil for lubrication from time to time.
Lubrication enables
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. 22).
(2) Open the nail guide and remove dust, etc., as shown
in Fig. 23. Apply lubricant to the sliding groove of the
feeder and feeder shaft. Check nail stopper (A)
and nail stopper (B) slide smoothly by pushing them
with your finger.
(3) Also, apply the recommended oil to the feeding surface
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 fired at an irregular angle, presenting a
hazard to the operator and others nearby.
5. Inspecting the muffler
This Nailer has a built-in muffler in the exhaust to
reduce noise and stirred-up dust during exhaust.
When the mesh of the muffler is filled or the muffler is
damaged, replace the muffler with a new one. To
replace the muffler, contact our Authorized Service
Center (Fig. 24).
6. Inspecting the magazine
Clean the magazine. Remove dust of wooden chips
which may have accumulated in the magazine.
7. 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.
13
smooth sliding and
8. Service parts list
A : Item No.
B : Code No.
C : No. Used
D : Remarks
CAUTION
Repair, modification 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 modified to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) 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 filter reducing valve. Please limit the length of
the hose between the nailer and the air set to within 10 m
when using (Fig. 25).
APPLICABLE LUBRICANTS
Type of lubricant
Recommended oil
Motor oil
Turbine oil
Noise Information
Noise characteristic values in accordance with Dr prEN
792-13, JUNE, 1997:
The typical A-weighted single-event sound power level
The typical A-weighted single-event emission sound
pressure level at work station
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.
Name of lubricant
SHELL TONNA
SAE 10W, SAE 20W
ISO VG32 – 68
(#90 – #180)
L
,1s,d = 91 dB
WA
L
,1s,d = 84 dB
pA