Max HVR41G4 Instruction Manual

OPERATING INSTRUCTIONS MANUAL
MANUEL D’INSTRUCTIONS D’UTILISATION
MANUAL DE INSTRUCCIONES DE FUNCIONAMIENTO
BETRIEBSANLEITUNG
ISTRUZIONI PER L’USO
COLLATED SCREW FASTENING SYSTEM
SYSTÈME DE FIXATION À VIS COLLÉES
SISTEMA DE FIJACIÓN DE TORNILLOS EN TIRA
BEFESTIGUNGSSYSTEM FÜR GEBUNDENE
SCHRAUBEN
SISTEMA DI FISSAGGIO CON VITI NASTRATE
INDEX ENGLISH Page 1 to 5
INDEX FRANÇAIS Page 6 à 11
ÍNDICE ESPAÑOL Página 12 a 17
INDEX DEUTSCH Seite 18 bis 23
INDICE ANALITICO ITALIANO Pagine da 24 a 29
Please read instructions and warnings for this tool carefully before use. Failure to do so could lead to
serious injury. See MAX Safety Instructions Manual.
Keep these instructions with the tool for future reference.
Lisez soigneusement les instructions et les avertissements pour cet outil avant utilisation. Tout
manquement à cette consigne pourrait entraîner des blessures graves. Consultez le manuel des
consignes de sécurité MAX.
Conservez ces instructions avec l’outil pour toute consultation ultérieure.
Lea detenidamente las instrucciones y advertencias de esta herramienta antes de usarla. De lo
contrario, pueden producirse lesiones corporales graves. Consulte el manual de instrucciones de
seguridad de MAX.
Conserve estas instrucciones junto con la herramienta para futuras consultas.
Bitte lesen Sie sich die Anweisungen und Warnungen für dieses Werkzeug vor der Verwendung
sorgfältig durch. Anderenfalls könnte dies zu schweren Verletzungen führen. Siehe MAX
Sicherheitsanleitung.
Bewahren Sie diese Anweisungen zum späteren Nachschlagen mit dem Werkzeug zusammen auf.
Prima dell'uso, leggere con cura le istruzioni e le avvertenze relative a questo utensile. La mancata
osservanza di questa indicazione potrebbe portare a gravi lesioni personali. Consultare il manuale
Istruzioni di sicurezza MAX.
Conservare queste istruzioni insieme all'utensile per consultazioni future.
HVR41G4(CE)
Original Language English
WARNING
AVERTISSEMENT
ADVERTENCIA
WARNUNG
AVVE RTENZ A

Fig.1 Fig.2 Fig.3
Fig.4 Fig.5 Fig.6
Fig.7 Fig.8 Fig.9
Fig.10 Fig.11 Fig.12
Fig.13
5
3
4
1
c
2
9
6
a
0
b
7
8
1
2
1
2
21
1
2
2
1
1
1
1
1

Fig.14 Fig.15 Fig.16
Fig.17 Fig.18 Fig.19
Fig.20 Fig.21 Fig.22
3
2
1
2
1
1
2
1 2
1
2
3
4
1
1
2
3
1
2

Fig.23 Fig.24 Fig.25
Fig.26
1
3 2
4
1
1

1
1. SPECIFICATIONS AND TECHNICAL DATA
1. NAME OF PARTS (SEE Fig.1)
2. TOOL SPECIFICATIONS
3. FASTENER SPECIFICATIONS
4. TECHNICAL DATA
NOISE
These values are determined and documented in accordance to EN12549:1999+A1:2008.
NOTE: These values are tool-related characteristic values and do not represent the noise generation at the point of use. Noise at the point
of use will for example depend on the working environment, the workpiece, the workpiece support, and the number of driving operations.
In addition, reference should be made to noise reduction measures.
NOTE: Workplace design can also serve to reduce noise levels, for example placing workpieces on sound-damping supports
(see also ISO 11690-1).
ENGLISH
OPERATING INSTRUCTIONS MANUAL
1Frame 6Trigger aEnd Plug Cap
2Cylinder Cap 7Grip bHook
3Contact Arm 8Changeover lever cTrigger Lock Dial
4Door 9Regulator
5Magazine 0Plug
HEIGHT 312 mm (12-1/4")
WIDTH 116 mm (4-1/2")
LENGTH 300 mm (11-3/4")
WEIGHT 1.9 kg (4.2 lbs)
RECOMMENDED OPERATING PRESSURE 18 to 23 bar (250 to 320 p.s.i.)
LOADING CAPACITY 100 Screws
AIR CONSUMPTION 1.9 L at 23 bar (320 p.s.i.)
operating pressure
A-weighted single-event sound power level ------ LWA, 1s, d 95.6 dB
A-weighted single-event emission sound pressure level at work station------ LpA, 1s, d 93.9 dB
Uncertainty 3 dB
25mm (1") to 41mm (1-5/8")
8mm (0.31")
Drywall screw
3.5mm (#6) to 4.0mm (#7)

2
VIBRATION
These values are determined and documented in accordance to ISO 28927-13.
NOTE: The vibration emission value above is a tool-related characteristic value and does not represent the influence to the hand-arm-sys-
tem when using the tool. Any influence to the hand-arm-system when using the tool will for example depend on the gripping force, the con-
tact pressure force, the working direction, the adjustment of energy supply, the workpiece, the workpiece support.
5. APPLICATIONS
Fastening gypsum board, decorative board, and other interior boards.
6. ABOUT PRODUCTION YEAR
This product bears production number at the lower part of the grip of the main body. The two digits of the number from left indicates the
production year.
Vibration characteristic value 2.10 m/s2
Uncertainty 1.5 m/s2
(Example)
1 8 8 2 6 0 3 5 D
Year 2018

3
2. AIR SUPPLY AND CONNECTIONS
(Fig.2)
A. HOSES AND SUPPLY SOURCE:
WHEN USING THE TOOL, BE SURE TO USE A SPECIAL AIR
COMPRESSOR (1) AND AIR HOSE (2).
In order to improve its performance, it has set its working pres-
sure higher than the conventional nailers. To use the tool, you al-
ways need the special air compressor and air hose (MAX
PowerLite Compressor and MAX PowerLite Hose).
Use of high pressure gas (for example, oxygen, acetylene, etc.)
causes abnormal combustion, possibly resulting in explosion.
Use only the special air compressor and air hose.
B. OPERATING PRESSURE:
18 to 23 bar (250 to 320 p.s.i.). Select the operating air pressure
within this range for best performance based upon the fastener
application and work surface. Using the lowest acceptable to
minimize noise, vibration and wear.
DO NOT EXCEED 23 bar (320 p.s.i.).
NOTICE:
Frequent, but not excessive, lubrication is required for the best
performance. Oil added thru the air line connection will lubricate
the internal parts.
3. INSTRUCTIONS FOR OPERATION
1. BEFORE OPERATION
1Wear Safety Glasses or Goggles.
2Do not connect the air supply.
3Inspect screw tightness.
4Check operation of the contact arm & trigger if moving
smoothly.
5Connect the air supply.
6Check the air leakage. (The Tool must not have the air
leakage.)
7Hold the Tool with finger-off the trigger, then push the con-
tact arm against the work-piece. (The tool must not oper-
ate.)
8Hold the Tool with contact arm free from work-piece and pull
the trigger. (The Tool must not operate.)
9Disconnect the air supply.
2. OPERATION
SCREW LOADING
1(Fig.3) Open the Magazine:
Pull up Door Latch 1 and swing Door 2 open. Swing Mag-
azine Cap open.
2(Fig.4) Screw loading:
Place a coil of screws in the magazine. Uncoil enough
screws to reach the feed pawl, and place the second screw
on the feed pawl. The screw heads fit in slot on the nose.
3(Fig.5) Swing Magazine Cap closed.
4Close the door.
5Check that latch engages. (If it does not engage, check that
the screw heads are in the slot on the nose.)
∗It is also possible to close the door first, followed by the
Magazine Cap. (Fig.6)
TEST OPERATION
1Adjust the air pressure at 18 bar (250 p.s.i.) and connect the
air supply.
2Without touching the Trigger, depress the Contact Arm
against the work-piece.
Pull the Trigger. (The tool must fire the fastener.)
3With the tool off the work-piece, pull the Trigger.
Then depress the Contact Arm against the work-piece.
(The tool must fire the fastener.)
4Adjust the air pressure as much as the lowest possible
according to the diameters and length of fastener and the
hardness of work-piece.
DRIVING FASTENERS
This tool is shipped with ANTI-DOUBLE FIRE MECHANISM se-
lected. It is the responsibility of employer, tool owner or tool op-
erator to select the appropriate actuation system for the fastener
application and training of tool operator before changing the trig-
ger setting.
SWITCHING ANTI-DOUBLE FIRE MECHANISM TO SEQUEN-
TIAL ACTUATION (Option)
To change the trigger system, please contact MAX CO., LTD. au-
thorized distributors and have them change the system.
SWITCHING SEQUENTIAL ACTUATION (Option) TO ANTI-
DOUBLE FIRE MECHANISM
To change the trigger system, please contact MAX CO., LTD. au-
thorized distributors and have them change the system.
CONTACT ACTUATION OPERATION
For contact fire operation, pull the Trigger and depress the Con-
tact Arm against the work surface.
ANTI-DOUBLE FIRE MECHANISM OPERATION and SEQUEN-
TIAL ACTUATION OPERATION
For single fire operation, depress the Contact Arm against the
work surface and pull the Trigger. A fastener will be driven. Re-
lease trigger. Begin again.
CHANGEOVER LEVER (Fig.7)
This tool has a changeover lever mechanism 1 , which allows
optimum (drivability, speed) screwing work depending on the
condition of the driven-side base material.
CHANGEOVER LEVER POSITION
PROCEDURE
1Pulling the Trigger and keeping it
pulled.
2Depressing the Contact Arm.
ANTI-DOUBLE FIRE
MECHANISM
The tool fires a screw each time when
the Contact Arm is depressed.
SEQUENTIAL ACTU-
ATION
The tool cannot fire a screw.
PROCEDURE
1Depressing the Contact Arm.
2Pulling the Trigger and keeping it
pulled.
ANTI-DOUBLE FIRE
MECHANISM AND
SEQUENTIAL ACTU-
ATION
The tool fires a screw.
The tool cannot fire a second screw
until the Trigger is released.
Lever position Driven base material condition
Base material Top material
“W”
(wooden base) Wooden Drywall board (9.5 to 15 mm thick), 1 or 2 pcs.
“M”
(metal base)
Metal (under
0.8 mm thick)
Drywall board (9.5 to 15
mm thick), 1 or 2 pcs.

4
A : Optimum
B : Able to drive
C : Cannot drive
NOTICE:
• It is recommended to set the changeover lever to an appropri-
ate position suitable for the condition of the driven-side base
material.
• For the condition of the metal base material and 2 pcs. of dry-
wall boards, you cannot drive at the changeover lever position
of “W”.
• The changeover lever should be properly operated and set to
the position of “W" or “M" until it clicks.
DRIVING DEPTH ADJUSTMENT DIAL (Fig.8)
Adjust the driving depth by twisting the adjustment dial 1 as in-
dicated below.
TRIGGER LOCK MECHANISM (Fig.9)
This tool has a Trigger Lock. The trigger should be locked at all
times until you intend to drive screw into the work surface. Push
and rotate the Trigger LOCK Dial 1clockwise from LOCK to
UNLOCK position immediately before driving screws. When
fastening is complete, push and rotate switch counterclockwise
to LOCK position.
CONTACT TIP
The contact top L is 3 mm longer than the standard contact top,
and reduces the driving quantity on base materials.
NOTICE:
• Use contact top L if the screw does not tighten (such as when
fastening drywall boards to thin steel or soft wooden base ma-
terials, etc.).
• The contact top L reduces the driving quantity, makes the re-
sult more stable by reducing the effects on the base material,
and reduces the occurrence of loose screws.
• If there is no improvement even when using the contact top L,
set the CHANGEOVER LEVER to “W” (wooden base).
HOW TO REMOVE PLASTIC SHEET (Fig.10)
As screws are driven the plastic sheet will feed out of the tool.
When sufficient strip has been fed out it can be torn away by pull-
ing against the tear edge in the nose.
HOW TO USE SINGLE-TOUCH ADJUSTER
Base material Number of
boards
Lever position
“W” “M”
Wooden 1 pc. A B
2 pcs. A B
Metal 1 pc. B A
2 pcs. C A
Deep Shallow
Contact top (orange)
Standard contact top
Contact top L (transparent)
Included contact top
Adjuster position Screw Application
Flat driving
If the screw is driven slantly, its head
sticks out of the board.
Use for flat driving
Slant driving
The screw head sinks under the board
surface if it is driven slantly.
Use for slant driving
Projecting
Projecting

5
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
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 1from 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.
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
• 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.
1Disconnect the air supply.
2Open 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.
4Put back the screws on the feed pawl and close the tool
door.
WARNING
WARNING
WARNING

6
1. CARACTÉRISTIQUES TECHNIQUES ET ACCESSOIRES
1. NOM DES PIÈCES (Voir Fig. 1)
2. SPÉCIFICATIONS DE L’OUTIL
3. SPÉCIFICATIONS DES FIXATIONS
4. DONNÉES TECHNIQUES
BRUIT
Ces valeurs sont déterminées et documentées conformément à la norme EN12549:1999+A1:2008.
REMARQUE : ces valeurs sont des valeurs caractéristiques relatives à l’outil et ne représentent pas la génération du bruit au niveau du
point d’utilisation. Le bruit au niveau du point d’utilisation dépend par exemple de l’environnement de travail, de la pièce usinée, du support
de la pièce usinée et du nombre d’opérations effectuées. En outre, il convient de se rapporter aux mesures de réduction du bruit.
REMARQUE : la conception du lieu de travail peut également permettre de réduire les niveaux de bruit, par exemple en plaçant les pièces
à usiner sur des supports atténuateurs de son (voir également ISO 11690-1).
FRANÇAIS
MANUEL D’INSTRUCTIONS D’UTILISATION
1Châssis 6Déclencheur aBouchon de la prise d'extrémité
2Capuchon du cylindre 7Poignée bCrochet
3Bras de contact 8Levier de permutation cMolette de blocage de la commande
4Porte 9Régulateur
5Magasin 0Fiche
HAUTEUR 312 mm (12-1/4")
LARGEUR 116 mm (4-1/2")
LONGUEUR 300 mm (11-3/4")
POIDS 1,9 kg (4,2 lbs)
PRESSION DE FONCTIONNEMENT
RECOMMANDÉE
18 à 23 bars (250 à 320 p.s.i.)
CAPACITÉ DE CHARGEMENT 100 vis
CONSOMMATION PNEUMATIQUE 1,9 L à 23 bars (320 p.s.i.)
pression de fonctionnement
Niveau de puissance acoustique pondérée A pour événement unique ------ LWA, 1s, d 95,6 dB
Niveau de pression acoustique émise pondérée A pour événement unique au niveau du
poste de travail------ LpA, 1s, d
93,9 dB
Incertitude 3dB
25 mm (1") à 41 mm (1-5/8")
8 mm (0,31")
Vis pour paroi sèche
3,5 mm (#6) à 4,0 mm (#7)