ECHNICAL INFORMATION
PRODUCT
P 1/ 10
L
T
AN911H
Models No.
Description
Construction Coil Nailer
CONCEPT AND MAIN APPLICATIONS
H
AN911H is a construction coil nailer powered by high pressure air.
Maximum length 90mm (3-1/2inch) wire coil nail can be nailed.
Powerful driving make it possible to continuously fasten 28mm thickness
hard plywoods and lumber girders with 75mm shank length nails.
Other main advantages are as follows:
W
Dimensions: mm (")
Thin and unique shape nose-tip
Length (L)
293 (11-1/2)
Magazine designed to make nail loading quick and easy
Protective bumpers
125 (4-7/8)
146 (5-3/4)
319 (12-1/2)
with Hook
Width (W)
Height (H)
without Hook
Specification
Optional accessories
Wire coil nail
Wire coil nails
for wood
ø2.5 x 45 ~ ø3.8 x 90
(ø0.099 x 1-3/4 ~ ø0.148x 3-1/2)
ø2.5mm shank ø6mm head conical roll
65mm smooth shank 65mm screw chisel shank
ø2.5mm shank ø6mm head flat roll
50mm smooth shank 50mm screw chisel shank
57mm smooth shank 57mm screw chisel shank
65mm smooth shank 65mm screw chisel shank
ø2.9mm shank ø7mm head flat roll
50mm screw chisel shank
Plastic sheet
collated nails
for thin steel
Plastic sheet
collated nails for
cement board
ø2.5 x 45 ~ ø2.5 x 65
(ø0.099 x 1-3/4 ~ ø0.099 x 2-1/2)
Nail
Shank diameter
x Overall length:
mm(”)
ø2.5 x 45 ~ ø2.5 x 50
(ø0.099 x 1-3/4 ~ ø0.099 x 2)
Magazine type
Open like clamshell
Four stages
57mm screw chisel shank
65mm screw chisel shank
71mm screw chisel shank
Height control inside Magazine
Nail capacity: Quantity
150, 200, 250, 300
ø3.1mm shank ø7mm head flat roll
75mm screw chisel shank
85mm screw chisel shank
90mm screw chisel shank
ø3.1mm shank ø7.2mm head flat roll
75mm smooth shank
85mm smooth shank
ø3.1mm shank ø7.5mm head flat roll
90mm smooth shank
JIS compatible (formally called as N in Japan)
flat roll
1.28~2.26
(185 ~ 320)
Operating air pressure: MPa (psi)
Change of Wire coil nails
and Plastic sheet collated nails
Auto
Yes
Depth control
Direction of air exhaust
Change of bump fire mode and
sequential mode
Trigger lock-off
Hook
Forward from front head
Yes
No
Yes
Thickness of Steel plate
to be nailed
Protective bumpers
Soft grip
45mm x ø2.5mm shank - ø5.8mm head
50mm x ø2.8mm shank - ø6.6mm head
65mm x ø3.1mm shank - ø7.3mm head
75mm x ø3.4mm shank - ø7.5mm head
90mm x ø3.8mm shank - ø7.9mm head
Conical nail for wood floor
3.2mm (1/8")
Yes
Yes
2.3 (5.1)
Net weight: kg (lbs)
ø2.1mm shank - ø4.2mm head
45mm screw chisel shank
50mm screw chisel shank
Hardened conical nail
ø2.5mm shank - ø5.6mm head
Standard equipment
Safety goggles .............................. 1
Plastic carrying case ..................... 1
Oil supply ..................................... 1
Nose adapter (flat end type).......... 1
45mm smooth shank
57mm smooth shank
50mm smooth shank
65mm smooth shank
Note: The standard equipment for the tool shown above may vary
by country.
Plastic sheet collated hardened-nail
ø2.52mm shank - ø5.5mm head
45mm screw chisel shank 50mm screw chisel
shank
Plastic sheet collated hardened-nail
ø2.52mm shank - ø5.5mm head
45mm smooth shank 50mm smooth shank
65mm smooth shank
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P 2/ 10
Repair
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.
[1] NECESSARY REPAIRING TOOLS
Item No.
Description
Purpose
Disassembling Trigger ass’y
1R266 Spring pin extractor M2
1R267 Spring pin extractor M2.5
1R268 Spring pin extractor M3
1R229 1/4" Hex shank bit for M5
1R230 1/4" Hex shank bit for M6
1R231 1/4" Hex shank bit for M8
Removing Adjust sleeve and Adjust shaft
Disassembling Trigger base section and Trigger valve section
Removing M5 Hex socket head bolt
Removing M6 Hex socket head bolt
Removing M8 Hex socket head bolt
1R291 Retaining ring S and R pliers Removing Retaining ring S-25 for setting Change plate
[2] LUBRICATION
1) Apply a little amount of Isoflex NB52 to O rings, Top cap complete and Piston.
2) When removing Hex socket head bolts, apply adhesive (ThreeBond 1321/1342 or Loctite 242) to the threads before
reassembling. And then tighten the Hex socket head bolts to the specific torque.
3) Tighten One-touch joint, Inlet cap and M5x22 Pan head screw to the specific torque without adhesive.
Bind a thread sealant tape to the thread of One-touch joint to maintain the positive sealing on the thread connection.
See Figs. 1 and 2.
Fig. 1
Item No.
2
Description
Nine holes in Top cap complete for
receiving Compression spring 4
Lubricant
1
5
O ring 60
O ring 50
O ring 53
O ring 67
O-ring 26
6
8
Isoflex
NB52
11
12
2
17
18
20
O ring 53
O-ring 39
O-ring 6
35
37
Housing set
20
17
18
30
34
34
O ring 4
O ring 36
Compression
spring 4 (9pcs.)
5
6
Item No.
1
Description
Fastening torque (N.m)
Adhesive
M6x45 Hex socket
head bolt (4pcs.)
10.5
for Top cap complete
and Housing set
ThreeBond 1321/1342
8
or
M8x30 Hex socket
head bolt (4pcs.)
25
Front
cushion
32
Loctite 242
for Driver guide
and Housing set
30
25
No
35
37
Inlet cap
29
to Housing set
11
12
One-touch joint
H22PM
25
Thread sealant tape
to Inlet cap
Driver guide
32
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P 3/ 10
Repair
[2] LUBRICATION (cont.)
Fig. 2
Item No.
Description
Lubricant
77
78
79
80
O ring 9
Rod portion of Piston
O ring 14
Nail loading
section
Rubber ring 13
O ring 22.4
83
84
101
Inside of Cylinder
O-ring 15
42
Isoflex
NB52
Magazine ass’y
111
102
O ring 18
44
Pin 4
(Refer to [3]-3
Magazine section.)
Change plate
104
O-ring 7 (2pcs.)
O-ring 12.5
Trigger
valve section
106
108
110
O ring 3
O-ring 3
Note: O ring 3 is different from O-ring 3.
63
101
102
Hook
Retaining
ring S-25
Hook base
104
86
Housing set
Trigger
valve section
106
108
84
83
Trigger
base section
Nail loading
section
80
79
110
111
78
77
Door
Adjuster section
Door cover
100 Note: The top of M4x14 Hex socket head bolt must not protect
98
Item No.
42
out from the surface of Door.
Description
M5x28 Hex socket
head bolt
M5x16 Hex socket
head bolt
Fastening torque (N.m)
Adhesive
ThreeBond 1321/1342
2.5
or
for Magazine ass’y
and Housing set
Loctite 242
44
63
M5x22 Pan head
screw
2.5
No
for Hook and Hook base
2
for Cylinder
and Driver guide
1.3
M5x35 Hex socket
head bolt (2pcs.)
86
98
100
ThreeBond 1321/1342
M4x8 Hex socket
head bolt
or
for Door cover and Door
Loctite 242
1.3
M4x14 Hex socket
head bolt
for Door cover and Door
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P 4/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-1. Head valve section
DISASSEMBLING
1) Loosen four M6x45 Hex socket head bolts and remove Top cap complete. (Fig. 3)
2) While filling one of two holes of Rear cushion with finger, blow the air into the other hole with air duster.
Rear cushion rises and can be removed from Top cap complete. (Fig. 4)
Fig. 3
Fig. 4
M5x16 Hex socket
head bolt (4pcs.)
Two holes
Top cap complete
with Rear cushion
Filter
Compression
spring 4
Head valve
Top cap gasket
O-ring 6
Rear cushion
Top cap complete
Head valve guide
Housing set
Fig. 5
Head valve
ASSEMBLING
1) Assemble Rear cushion to Top cap.
2) Put nine Compression springs 4 into holes of Top cap complete.
3) Fit Head valve into Top cap complete carefully so as not to lean
any Compression springs 4. (Fig. 5)
Compression
spring 4 (9pcs.)
Top cap
complete
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P 5/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-2. Driver, Cylinder stay, Valve seat
DISASSEMBLING
(1) Remove Top cap complete in accordance with mentioned in previous page.
(2) Remove O ring 6 (Refer to Fig. 3) in advance to prevent missing. (Fig. 6)
Remove Gasket from Housing set.
(3) Tap Housing set from Top cap complete setting side. Parts illustrated in Fig. 7 can be removed.
(4) Insert Slotted screwdriver between the protrusion of Cylinder and Cylinder stay, then lever up Cylinder stay. (Fig. 8)
(5) Remove Valve seat with
Fig. 7
Fig. 8
Slotted screwdriver. (Fig. 9)
O ring 26
Driver
Cylinder stay
Slotted
screwdriver
Head valve guide
O ring 67
Protrusion
of Cylinder
Valve seat
Cylinder stay
Cylinder
Fig. 6
Fig. 9
O ring 6
Valve seat
Gasket
O ring 53
O ring 39
Cylinder stay
Housing set
ASSEMBLING
Take the disassembling step in reverse.
[3]-3. Magazine section
DISASSEMBLING
Fig. 10
Viewed from the reverse of Magazine ass’y
(1) Remove Stop ring E-3 from Pin 4 on the reverse of Magazine ass’y
using Slotted screwdriver. (Fig. 10)
Pin 4 can be pulled out as illustrated in Fig. 2.
(2) Remove Retaining ring S-25 from Adjust shaft in the reverse of
Change plate using 1R291. (Fig. 11)
Pin 4 Slotted screwdriver
Stop ring E-3
(3) In a manner as illustrated in Fig. 12, push Pins 2.5 and 3 out of
Adjust sleeve.
hinge portion
of Magazine cap
Adjust sleeve can be removed. (Fig. 13)
Note: Do not miss Steel ball 3.5 that drops off in the above step.
Fig. 11
Fig. 12
Fig. 13
Change plate
Adjust sleeve Pin 3 Pin 2.5
Viewed from the reverse
Pin 3
Adjust shaft
of Change plate
Change plate
Adjust
sleeve
Retaining
ring S-25
Compression spring 2
1R267
Steel ball 3.5
Adjust sleeve viewed
from the round end
Pin 2.5
1R291
Hole for receiving
Compression spring 2
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P 6/ 10
Repair
Fig. 14
[3] ASSEMBLING/ DISASSEMBLING
[3]-3. Magazine section (cont.)
Indication of Nail length
on Adjust sleeve
Arrow of
Change plate
ASSEMBLING
Refer to previous page.
Inlet cap side
(1) Insert one end of Compression spring 2 into the hole in Adjust sleeve,
and attach Steel ball 3.5 to the other end of Compression spring 2
using grease in order not to drop off.
round end
(2) Insert Adjust shaft into Adjust sleeve, then set Pin 2.5 in place.
(3) Pass Pin 3 through Adjust sleeve and Adjust shaft, then assemble
Change plate to Adjust sleeve.
Face half-moon
end of Adjust shaft
Note: Pay attention to their directions. Refer to Fig. 14.
Before fitting Retaining ring S-25 in place, check the following points;
shifting Change plate to the desired height
to Driver guide end.
Driver guide side
Fig. 15
turning Adjust sleeve
aligning indication of Nail length on Adjust sleeve with an arrow of
Change plate
Round end of Adjust shaft
Magazine
facing the indication of Nail length to Inlet cap side
If the above checks are not successful, the position of Pin 3 is wrong.
(4) Fit Retaining ring S-25 into the groove of Adjust shaft using 1R291.
(5) Set Torsion spring 7 to the round end of Adjust shaft. Insert one leg
of Torsion spring 7 to the hole of Adjust shaft, and hook the other
leg with Magazine as illustrated in Fig. 15.
(5) Pass Pin 4 through hinges of Magazine, Torsion spring 7 and Adjust
shaft while bearing the restoring force of Torsion spring 7.
Note: Pass 1R308 temporarily in advance and then push out 1R308 by
inserting Pin 4. This way helps easy setting of Pin 4.
(6) Fit Stop ring E-3 to Pin 4 as illustrated in Fig. 16.
Change plate
leg of Torsion spring 7
hooked with Magazine
leg of Torsion spring 7 inserted
in the hole of Adjust shaft
Fig. 16
Pin holder
of Magazine
Stop ring E-3
Pin 4
[3]-4. Trigger valve, Front cushion
DISASSEMBLING
Note: Removing Magazine ass’y, Driver guide, Adjuster ass’y and
Fig. 17
Trigger base section is required.
M5x28 Hex
socket head bolt
(1) Remove M5x16 Hex socket head bolt and M5x28 Hex socket head bolt.
Magazine ass’y and Contact arm cover can be removed. (Fig. 17)
(2) Remove Urethane ring 3. Contact arm can be removed. (Fig. 18)
(3) Remove four M8x30 Hex socket head bolts and Driver guide. (Fig. 1)
Front cushion can be replaced.
M5x16 Hex
socket head
bolt
Driver can be replaced by accessing from Driver guide side.
(4) Push out all pins around Trigger using 1R268. (Fig. 22 of next page.)
(5) Remove Trigger base section and then slide Change rod out of Trigger base.
(Fig. 24 of next page.)
(6) Pick Trigger valve stem and remove Trigger valve portion using pliers.
(Fig. 19)
Contact arm
cover
(7) Lever up Trigger valve guide using slotted screwdriver. (Fig. 20)
Trigger valve section can be removed as illustrated in Fig. 1.
Magazine ass’y
Fig. 18
Tool viewed from upper side
Urethane ring 3 Adjuster complete
Fig. 19
Trigger valve stem
Fig. 20
Trigger valve guide Trigger valve case
Pilot valve
slotted screwdriver
Pliers Trigger valve case
Contact arm
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P 7/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-4. Trigger valve, Front cushion (cont.)
ASSEMBLING
Refer to previous page and take the disassembling step in reverse.
Note: Trigger valve case and Trigger guide have to be firmly inserted
into places until the click sounds can be heard.
Fig. 21
Center groove
of Change rod
Lever
Trigger base section has to be assembled so that Lever can be put into
the center groove of Change rod.
Do not fail two different length Pins to set in place as illustrated in Fig. 22.
After setting 1R268 instead of Spring pins ø3-20/ ø3-32 temporarily,
push out 1R268 by setting Spring pins ø3-20/ ø3-32 in place. (Fig. 23)
Fig. 22
Fig. 23
1R268
Spring pin
ø3-20/ ø3-32
Spring pin ø3-20
Spring pin
step of 1R268 for
receiving ø3mm Spring pin
ø3-32 (3pcs.)
(For securing Trigger ass’y)
[3]-5. Trigger ass’y
DISASSEMBLING
Trigger ass’y can be removed by pushing out two Spring pins ø3-32. (Fig. 22)
Refer to Fig. 24 for the components as all-in-one package for repair purpose when disassembling Trigger ass’y.
Note: Trigger ass’y does not include Change rod.
Fig. 24
Trigger ass’y
Trip lever
Lever
Torsion spring 4
Torsion spring 4
(Part No. 233503-1)
(Part No. 231699-2)
Torsion spring 5
Steel ball 4
Trigger
Stopper plate
Compression
spring 2
Spring pin 2-12
Torsion spring 6
Lever
Pin 3
(Change rod)
Trigger base
Spring cover
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P 8/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-5. Trigger ass’y (cont.)
ASSEMBLING
Fig. 25
(1) Set Torsion spring 4 (Part No. 233503-1) to the hook of Lever, then pass Pin 3
through Trigger base, Trigger, Torsion spring 4 and Lever. (Fig. 25)
(2) After Assembling Torsion spring 5, Stopper plate, Torsion spring 6 and Lever,
pass Pin 3 through their holes. (Figs. 24 and 26)
Trigger base
Trigger
Make a round rod by matching the half-arch shapes of Stopper plate and
Lever.
Hook the one leg of Torsion spring 5 with the protrusion of Trigger base.
Hook the other leg of Torsion spring 5 with the protrusion of Stopper plate.
Hook the short leg of Torsion spring 6 with Stopper plate.
Hook the long leg of Torsion spring 6 with Lever.
Pin 3
Note: Do not put Trip lever under Lever. The wrong assembling way will cause
fault.
(3) Take the assembling step in accordance with the clause of [3]-4. Trigger valve.
Hook of Lever
Torsion spring 4
Fig. 26
one leg of
Torsion spring 5
short leg of
Torsion spring 6
Lever
half arch of Lever
Protrusion of
Trigger base
half arch of
Stopper plate
Pin 3
Stopper plate
Protrusion of
Stopper plate
Lever Pin 3
(Refer to Fig. 25)
short leg of
Torsion spring 6
the other leg of
Torsion spring 5
long leg of Torsion spring 6
[3]-6. Nail Depth Adjustment
DISASSEMBLING
Fig. 27
1R266
Remove Spring pin 2-14 in Upper yoke using 1R266 and 1R032. (Fig. 27)
Remove Adjust shaft by turning it counterclockwise with careful
not to lose Steel ball 2.3 and Compression spring 2.
Adjuster piece can be removed by turning it 90°.
1R032
Adjuster
complete
Upper yoke
Refer to Fig. 28 for the components of Adjuster ass’y
(that is all-in-one package for repair.)
Fig. 28
Compression spring 6 (It is not included in Adjuster ass’y)
Upper yoke
Adjuster ass’y
Spring pin 2-14
Adjust shaft
Compression spring 2
Steel ball 2.3
Slide plate
Adjuster piece
Adjuster complete
ASSEMBLING
Take the disassembling step in reverse.
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P 9/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-7. Driver guide, Piston for nail loading
REPLACING
Fig. 29
(1) Remove Driver guide in accordance with the clause of [3]-3.
(2) Remove two M5x35 Hex socket head bolts for Cylinder.
Note: Be careful that their bolts and Cylinder pop out by reaction force of
Compression spring 6 and Compression spring 9.
Trigger base
Trigger
Refer to Fig. 29 and replace the damaged parts.
Note: When setting Cylinder in place, tighten two M5x35 Hex socket head bolts
alternately to provide same torques. Do not lean Piston.
Pin 3
Urethane ring 4 is used on Torsion spring 4 with Feeding claw.
Do not mistake Urethane ring 3 for the position of Urethane ring 4.
Hook of Lever
Torsion spring 4
Fig. 30
M5x35 Hex socket
head bolt
Flat washer 5
Cylinder
Urethane ring 4
Contact arm cover
Torsion spring 9
O ring 22.4
Compression spring 9
Compression spring 6
Feeding
claw
Rubber ring 13
O ring 14
Piston
O ring 9
Push rivet
Flat washer 4
Pin 4.5
Door
Urethane
ring 3
Lock lever
Compression spring 5
Nail holder
Urethane
ring 3
Cover
Pin 2.5
Compression spring 4
Flat washer 4
Push rivet
Pin 4
Pin 2.5
Contact arm
Check claw
M4x14 Hex socket head bolt
Flat washer 4
Compression spring 5
Door cover
Nose adapter
M4x8 Hex socket head bolt
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P 10/ 10
Repair
[3] ASSEMBLING/ DISASSEMBLING
[3]-8. Door cover section
ASSEMBLING
(1) Attach Compression spring 4 (silver) and Compression spring 5 (black) to the specific places between Door and
Door cover using grease.
(2) Assemble Door cover to Door as illustrated in Fig. 31.
Note: As the notch of Door cover is difficult to fit into place of Door, Door cover is prone to be placed in wrong position.
Do not fail to fit Door cover into Door properly.
Do not mix up M4x8 Hex socket head bolt with M4x14 Hex socket head bolt.
M4x14 Hex socket head bolt is screwed until the top is not protruded out of the thread hole of Door.
Fig. 31
Door
Lock lever
Compression spring 5
Compression spring 4 (silver)
Door cover
Flat washer 4
Compression spring 5 (black)
M4x14 Hex socket head bolt
M4x8 Hex socket head bolt
Notch of Door cover
[3]-9. Inlet cap, One touch joint
DISASSEMBLING
When removing Inlet cap/ One touch joint H22PM, clamp this flat portion in vise, then turn the machine clockwise.
(Fig. 32)
Note: Be careful the direction to turn One touch joint H22PM or Inlet cap when disassembling. They have left handed
threads.
Fig. 32
flat portion of
Inlet cap
hexagonal portion
of One touch joint
H22PM
ASSEMBLING
Take the disassembling step in reverse.
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