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RELIEF VALVE (Fig.11)
This tool incorporates a high pressure reduction valve for reduc-
ing the range of pressure used at the PowerLite Hose side (18 to
23 bar (250 to 320 p.s.i.)) to a pressure around 8 bar (120 p.s.i.).
In a situation where the high pressure reduction valve fails and
pressure builds inside the tool, a relief valve 1 will operate to re-
lease the pressure while emitting a sound. Because this shows
that the high pressure reduction valve has failed, immediately
discontinue use of the machine, disconnect the air supply, and
send it to be repaired by a MAX Co., Ltd. authorized distributor or
other specialist. Note that the relief valve is built in to the rear part
of the machine body.
METHOD OF CHANGING THE HOOK DIRECTION
(Fig.12) The direction of the hook can be changed in four different
directions, and the hook width can also be adjusted in two stages
for each direction.
(Fig.13) When changing the direction or width of the hook, use a
hexagonal bar wrench 4 to loosen and remove the hexagon head
bolt that fixes the hook. After adjusting the hook position, replace
and tighten the hexagon head bolt.
HOW TO REPLACE THE BIT
WARNING
ALWAYS disconnect air supply before changing a bit.
NOTICE:
•
Pay attention on changing the bit so that sand, dust any for-
eign substance, etc. do not enter the tool. Inclusion of that can
cause the tool failure.
•
A bit is a consumable part, use of a worn bit deteriorates work
efficiency and causes defective screw fastening. Inspect the
bit before starting work and change it if it is worn.
•
Use the "TURBO DRIVER BIT B41X2" which is optionally
available at the MAX Co., Ltd. authorized distributors or by
other specialists.
1
(Fig.14) Remove the screws M5×20 (4 pcs.) by using the at-
tached 4 mm hex. wrench. Remove a Cylinder Cap. When
this is done, a Bit Assembly and Cylinder Cap Seal 2 will
also come off together. Pull out the Bit Assembly attached
to the Cylinder Cap.
•
If a Piston Stop Assembly is also detached when the Bit
Assembly is pulled out from the Cylinder Cap, fit the Pis-
ton Stop Assembly back into the Cylinder Cap.
•
If the Bit Assembly is remaining inside the Cylinder 3,
turn the tool upside down to remove it.
2
(Fig.15) Using a regular precision screwdriver or fine screw,
remove a Piston Band 1 from the Bit Assembly.
•
Remove the Piston Band carefully not to cut or damage
it by mistake.
•
The O-ring (upper and lower) are important parts to seal
the compressed air. Try not to touch them as much as
possible.
3
(Fig.16) Remove a Straight Pin 1. A Main Piston and Bit
come off from the Piston Cap 2.
4
(Fig.17) Remove the worn Bit 1 from the Main Piston and
replace with the new Bit 2.
5
(Fig.18) Fixing the Straight Pin 1, the new Bit 2, the Main
Piston 3, and the Piston Cap 4 in the reverse order of
Step 3.
•
When assembling, use only the specified oil and grease.
6
(Fig.19) Fit the Piston Band 1 into the middle groove of the
Bit Assembly.
•
Make sure that the Straight Pin has been securely inserted.
7
(Fig.20) Align the hexagonal section of the Bit 1 with that
of the Gear 2 and put the Bit Assembly into the Cylinder
3.
•
(Fig.21) Make sure that the O-ring is not coming out of
the Bit Assembly.
•
Then, be sure to apply 10 or more drips of oil into the
Cylinder.
8
(Fig.22) Fit a Cylinder Cap Seal 1 onto the upper part of
the body. Place the Cylinder Cap 2 onto the Cylinder Cap
Seal. Holding down the Cylinder Cap, tighten the four
Screws (M5×20) with the 4 mm hex. wrench.
WARNING
Make sure that the Cylinder Cap has been securely and uniformly
clamped to the body with the four Screws (M5×20) at the speci-
fied tightening torque.
NOTICE:
•
(Fig.23) Tighten the Screws evenly in the diagonal lines.
Specified tightening torque should be equal 100 to 120 kgf-cm
(86.8 to 104.2 in lbs.).
REMOVING JAMMED SCREWS
WARNING
•
ALWAYS disconnect the air supply.
•
Wear gloves when removing jams; do not use bare hands
•
Confirm that you have removed all screws from nose of
tool before reconnecting to air supply.
1
Disconnect the air supply.
2
Open the tool door and remove screws from inside of the
magazine.
3
(Fig.24, 25) Insert a thin metal stick 1 in the tool nose and
hit the metal stick with a hammer or remove the jam with a
flathead screwdriver.
•
(Fig.26) When striking a stuck screw with the thin metal
stick and the Bit 1 is inadvertently struck, the tip of the
Bit will be damaged.
4
Put back the screws on the feed pawl and close the tool
door.
5
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