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Makita AN250HC Technical Information
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Makita AN250HC Technical Information

Makita AN250HC Technical Information

Pneumatic concrete nailer
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Download this manual See also: Instruction Manual
T
ECHNICAL INFORMATION
Models No.
Description
C
ONCEPT AND MAIN APPLICATIONS
Model AN250HC is a pneumatic concrete nailer powered
by high pressure air.
Drives 19 to 25mm (3/4 to 1") long plastic sheet collated
concrete pins to fasten metal studs to concrete easily.
S
pecification
Nail type
Nail collation angle
Nail
Shank diameter:
mm (")
Magazine capacity
Operating air pressure: MPa
Weight according to
EPTA-Procedure 01/2003: kg (lbs)
S
tandard equipment
Hook ................................................................. 1
Safety goggles ................................................... 1
Oil supply (containing 30ml of turbine oil) ...... 1
Nose adapter A ................................................. 2
Nose adapter B ................................................. 2
Plastic carrying case ......................................... 1
Note: The standard equipment for the tool shown above may vary by country.
O
ptional accessories
Plastic sheet collated concrete pins
Air hoses, etc.
Air leak repair set
AN250HC
Pneumatic Concrete Nailer
Plastic sheet collated concrete pins
2.5 (0.099)
Length:
mm (")
3.0 (0.120)
(kgf/cm
)
2
0 degree
19, 22, 25 (3/4, 7/8, 1)
19 (3/4)
100 pins
1.18 - 2.26
(12 - 23)
2.1 (4.7)
PRODUCT
P 1/ 14
W2
L
H
Dimensions: mm (")
Length (L)
295 (11-5/8)
Width 1 (W1)
128 (5)
Width 2 (W2)
88 (3-1/2)
Height (H)
291 (11-1/2)
Width 1: with Hook
Width 2: without Hook
W1

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Summary of Contents for Makita AN250HC

  • Page 1 Description Pneumatic Concrete Nailer ONCEPT AND MAIN APPLICATIONS Model AN250HC is a pneumatic concrete nailer powered by high pressure air. Drives 19 to 25mm (3/4 to 1") long plastic sheet collated concrete pins to fasten metal studs to concrete easily.

  • Page 2: Necessary Repairing Tools

    P 2/ 14 epair CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. [1] NECESSARY REPAIRING TOOLS Code No. Description Use for 1R229 1/4” Hex shank bit for M5 Removing / screwing M5 Hex socket head bolt 1R230 1/4”...

  • Page 3: Fastening Torque

    P 3 14 epair [3] FASTENING TORQUE Tighten the bolts and screws to the following fastening torque. Note: Apply Loctite 242 or ThreeBond 1321 / 1342 to the bolts designated with hexagonal marks. Bind thread sealant tape to One touch joint H22PM designated with flag mark. Item No.
  • Page 4 P 4/ 14 epair [4] ASSEMBLING/ DISASSEMBLING [4]-1. Head valve section DISASSEMBLING (1) Disassemble Top cap from Housing set as illustrated in Fig. 3. Fig. 3 Remove four M6x30 Hex socket head bolts from Housing set. Filter can be removed from Top cap. Do not lose nine Compression springs 4.
  • Page 5 P 5/14 epair [4] DISASSEMBLY/ASSEMBLY [4]-2. Driver, Cylinder section (Cylinder stay, Valve seat) DISASSEMBLING (1) Driver and Cylinder section can be removed as illustrated in Fig. 6. Fig. 6 Disassemble Top cap section and Top cap gasket as Strike Housing set with plastic hammer. illustrated in Fig.
  • Page 6 P 6/14 epair [4] DISASSEMBLY/ASSEMBLY [4]-3. Trigger valve section DISASSEMBLING Note: Trigger valve section can be replaced without removing Magazine section and Driver guide from Housing set. (1) Remove Contact arm and Holder as illustrated in Fig. 9. Fig. 9 Remove Holder by unscrewing Remove Contact arm cover by unscrewing Separate Contact arm from Slide...

  • Page 7: Trigger Assembly

    P 7/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-3. Trigger valve section (cont.) ASSEMBLING Fig. 12 Refer to the previous page and take the disassembling step in reverse. Trigger valve section Note: Trigger valve case and Trigger guide have to be firmly inserted into places until the click sounds can be heard.
  • Page 8 P 8/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-4. Trigger assembly (cont.) ASSEMBLING (1) Set the following parts in place as illustrated in Fig. 17. Torsion spring 5 Stopper plate Torsion spring 6 Lever Fig. 17 arch ends of Stopper plate Torsion spring 6 arch ends of Lever Torsion spring 5 narrow hook...
  • Page 9 P 9/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-5. Adjuster assy DISASSEMBLING Disconnect Contact arm from Slide plate of Adjuster assy, and then remove Holder that secures Adjuster assy to Driver guide. Remove Contact arm and Holder as illustrated in Fig. 9. Adjuster assy can be disassembled without removing Spring pins 3-20 and 3-32.

  • Page 10: Front Cushion

    P 10/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-6. Front cushion DISASSEMBLING (1) Remove Contact arm cover by unscrewing M5x20 Hex socket head bolt, and remove Urethane ring 3 from Contact arm. See the center and left illustration in Fig. 9. Contact arm can be removed. (2) Disassemble Driver guide as illustrated in Fig.
  • Page 11 P 11/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-7. Driver guide section, Feeding mechanism (cont.) DISASSEMBLING (4) Disassemble Feeding mechanism as illustrated in Figs. 23 and 24. Fig. 23 Remove Retaining ring R-24 while holding Now the following parts are disassembled Cup washer with your finger. from Driver guide.
  • Page 12 P 12/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-7. Driver guide section, Feeding mechanism (cont.) ASSEMBLING (1) Assemble O ring 14 to Piston (for Nail feeding), and mount O ring 9 to the cylinder portion of Driver guide. Refer to Fig. 24. (2) Assemble Feeding claw and Piston as illustrated in Figs.
  • Page 13 P 13/ 14 epair [4] DISASSEMBLY/ASSEMBLY [4]-8. Magazine, Magazine cap DISASSEMBLING Disassemble Magazine section as illustrated in Fig. 27. Fig. 27 Magazine cap complete can Remove M5x20 and M5x30 Hex Remove Urethane ring 3 be separated from Magazine socket head bolts. with slotted screwdriver.
  • Page 14 If it is difficult to remove One touch joint H22PM as illustrated in Fig. 29, One touch joint can be disassembled as illustrated in Fig. 29A. Note: One touch joint H22PM and Inlet cap as Makita high pressure air tool have left handed threads. Fig. 29...