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Makita AN450H Technical Information
Makita AN450H Technical Information

Makita AN450H Technical Information

Pneumatic roofing coil nailer
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T
ECHNICAL INFORMATION
Models No.
Description
C
ONCEPT AND MAIN APPLICATIONS
Model AN450H is a pneumatic nailer powered by high pressure air;
designed for roofing shingles - especially for roofing asphalt shingles.
Drives the same wire collated coil nails as used for our normal pressure
air model AN453.
Its main benefits are:
Compact and lightweight design for high maneuverability
Nailing mode selector for providing Bump-fire
*
Sequential
capabilities.
2
*1:
Nails can be fired one after the other continuously first by pulling Trigger
then by bumping Contact arm against workpiece with the Trigger pulled.
*2:
One nail is fired first by pushing Contact arm against workpiece, then by
pulling Trigger with the Contact arm kept pushed; nail cannot be fired when
the steps are reversed. Another one can be fired by releasing Trigger,
then by repeating the steps; however, cannot be fired if Trigger is not released
before repetition of the steps.
S
pecification
Nail type
Nail length: mm (")
Nail
Nails per coil
Magazine capacity
Operating air pressure: MPa
Net weight: kg (lbs)
S
tandard equipment
Hook ................................................................. 1
Safety goggles ................................................... 1
Oil supply (containing 30ml of turbine oil) ...... 1
Hex wrench 4 ................................................... 1
Plastic carrying case ......................................... 1
Note: The standard equipment for the tool shown above may vary by country.
O
ptional accessories
Air leak repair set
Coil nails
Air hose, etc.
AN450H
Pneumatic Roofing Coil Nailer
*
Wire collated coil nail
(3/4, 7/8, 1, 1-1/4, 1-1/2, 1-3/4)
(kgf/cm
)
2
[PSI]
or
1
19, 22, 25, 32, 38, 45
120 nails
120 nails
1.28 - 2.26
(13 - 23)
[180 - 320]
2.2 (4.8)
PRODUCT
P 1/ 16
L
H
W2
W1
Dimensions: mm (")
Length (L)
287 (11-1/4)
Width 1 (W1)
142 (5-5/8)
Width 2 (W2)
117 (4-5/8)
Height (H)
276 (10-7/8)
Width 1: with Hook
Width 2: without Hook

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Summary of Contents for Makita AN450H

  • Page 1 Pneumatic Roofing Coil Nailer ONCEPT AND MAIN APPLICATIONS Model AN450H is a pneumatic nailer powered by high pressure air; designed for roofing shingles - especially for roofing asphalt shingles. Drives the same wire collated coil nails as used for our normal pressure air model AN453.
  • Page 2 P 2/ 16 epair CAUTION: Disconnect air hose and remove all nails from the machine for safety before repair/ maintenance in accordance with the instruction manual! [1] NECESSARY REPAIRING TOOLS Code No. Description Use for 1R266 Spring pin extractor 2 Disassembling / Assembling Trigger section and Adjuster section Spring pin extractor 3 Disassembling / Assembling Trigger base and Trigger valve...
  • Page 3 P 3/ 16 epair [3] Fastening Torque and Adhesive for Bolts Refer to Fig. 2. Tighten the bolts to the specific fastening torque. *Apply Loctite 242 or ThreeBond 1321/ 1342 to the threads of bolts designated with hexagonal marks. Item No. Description Q’ty Use for...
  • Page 4 P 4/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-1. Head valve section DISASSEMBLING Disassemble Head valve section as illustrated in Figs. 3 and 4. Fig. 3 M5 Hex socket button head bolt Exhaust cover cap Exhaust cover Filter Top cap Head valve section M5x35 Hex socket head bolt (4pcs.) Disassemble Head valve section from Housing set...
  • Page 5: O-Ring

    P 5/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-2. Driver complete, Cylinder section DISASSEMBLING (1) Disassemble Head valve section from Housing set as illustrated in Fig. 3. (2) Remove Cylinder section and Driver complete from Housing set, and disassemble them as illustrated in Figs.
  • Page 6: O-Ring

    P 6/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-3. Driver complete, Cylinder section (cont.) ASSEMBLING (2) Mount O rings to Cylinder and Driver complete. Refer to Fig. 8. (3) Assemble the Cylinder section to Housing set. Refer to the right illustration in Fig. 6. (4) Insert Driver complete into the Cylinder.
  • Page 7 P 7/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-4. Magazine (cont.) ASSEMBLING (1) Assemble Magazine as illustrated in Fig. 13. (2) Mount Magazine to the Machine, referring to Fig. 10. Fig. 13 Change plate Holder cap Holder cap Tension spring 5 Rubber plate 6-20 Insert Rubber plate 6-20 into Tension Press Change plate until it...
  • Page 8 P 8/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-5 Magazine cap complete DISASSEMBLING Refer to Fig. 14. Fig. 14 Remove Magazine cap by unscrewing M5x12 Hex Socket head bolt Remove the other components as M5x12 Hex socket head bolt (2pcs.). (shown below) is screwed into illustrated below.
  • Page 9 P 9/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-7 Front cushion, Trigger valve DISASSEMBLING (1) Separate Magazine section from machine as illustrated in Fig. 10. (2) Remove Magazine cap complete as the left illustration in Fig. 14. (3) Front cushion can be replaced in the order of Figs. 15 and 16. Driver complete can be replaced in this step as the right illustration in Fig.
  • Page 10: O-Ring

    P 10/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-7 Front cushion, Trigger valve (cont.) DISASSEMBLING (4) Trigger valve section can be disassembled in the order of Figs. 17 and 18. Fig. 17 Disassemble Trigger Pull off Trigger valve stem with pliers. Remove the following Spring pins base section and Change Trigger valve section can be removed with 1R268.
  • Page 11 P 11/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-7 Front cushion, Trigger valve (cont.) ASSEMBLING Take the disassembling step in reverse. Refer to Figs. 18 and 17. Note: 1) When assembling Trigger valve guide to Trigger valve case, press Trigger valve guide to Trigger valve case until it snaps.
  • Page 12 P 12/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-8 Trigger base section DISASSEMBLING (1) Disassemble Trigger base section as per the left and center illustrations in Fig. 17. (2) The removed Trigger base section are disassembled as illustrated in Fig. 22. Fig. 22 Torsion spring 4 Lever for Sequential firing Torsion spring 6...
  • Page 13 P 13/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-8 Trigger base section (cont.) ASSEMBLING (2) Set Torsion spring 6 to Lever (for single firing), or to Stopper plate. Aligning the half moon section of Stopper plate to that of Lever (for single firing), put Torsion spring 6 between Stopper plate and Lever (for single firing).
  • Page 14 P 14/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-9 Adjuster assembly DISASSEMBLING (1) Disassemble Adjuster assembly together with Trigger base section as the left and center illustrations in Fig. 17 (2) Separate Adjuster assembly from Trigger base section as illustrated in Fig. 26. (3) Disassemble the Adjuster assembly as illustrated in Figs.
  • Page 15: O-Ring

    P 15/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-10 Feeding mechanism DISASSEMBLING (1) Separate Magazine section from machine, as illustrated in Fig. 10. (2) Remove Contact arm and Contact top as illustrated in Fig. 15. (3) Separate Driver guide complete from Housing set as per the left illustration in Fig. 16. (4) Remove Door, Piston and Feeding claw from Driver guide complete in the order of Figs.
  • Page 16 P 16/ 16 epair [4] DISASSEMBLY/ASSEMBLY [4]-10 Feeding mechanism (cont.) ASSEMBLING (1) Insert Piston into Driver guide complete and connect it with Feeding claw. Refer to the right illustration in Fig. 31. (2) Secure Feeding claw to piston by passing Pin 4-4.5 through Feeding claw and Piston. Refer to the center illustration in Fig.