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[4] DISASSEMBLY/ASSEMBLY
[4]-6. Front cushion

(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. 21

.   

(1) Remove Contact arm cover by unscrewing M5x20 Hex socket head bolt, then 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. 21

.

(3) Disassemble Door from Driver guide as illustrated in 

Fig. 22

.   

Fig. 21

Fig. 22

ASSEMBLING

DISASSEMBLING

DISASSEMBLING

Front cushion

M8x30
Hex socket 
head bolt (4pcs.)

Remove four M8x30 hex socket 
head bolts.

Driver guide, Front cushion, O ring 44 and Cylinder guide can be removed.

Driver

O ring 44

Cylinder guide

Driver guide

Housing set

Housing set

Take the disassembling step in reverse.

[4]-7. Driver guide section, Feeding mechanism

Driver guide

Push Pin 5 with slotted screwdriver
toward nail driving direction.

Pull off Pin 5 with pliers toward nail driving direction. 
Door can be removed.

Pin 5

Pin 5

Pliers

Door

Driver guide

Urethane ring 3

Note: Do not lose Urethane ring 3 on Driver guide. 

Summary of Contents for AN250HC

Page 1: ...ose adapter A 2 Nose adapter B 2 Plastic carrying case 1 Optional accessories Plastic sheet collated concrete pins Air hoses etc Air leak repair set Specification Nail collation angle 0 degree 2 5 0 0...

Page 2: ...m to Trigger base section 1R291 Retaining ring S and R pliers Removing installing Retaining ring R 24 Item No Apply Isoflex NB52 to the following portions to protect parts and product from unusual abr...

Page 3: ...head bolt M8x30 Hex socket head bolt Torque N m Q ty Use for 1 4 4 Inlet cap 1 37 One touch joint H22PM 1 63 M5x22 Pan head screw 1 32 M5x30 Hex socket head bolt 1 42 M4x10 Hex socket head bolt 1 93 M...

Page 4: ...emains in Top cap Filter Head valve Head valve guide Remove Head valve O ring 6 Remove Top cap gasket and O ring 6 Do not lose O ring 6 Rear cushion Top cap complete Air duster While filling one of tw...

Page 5: ...llustrated in Fig 7 1 Driver and Cylinder section can be removed as illustrated in Fig 6 3 O rings of Cylinder section can be replaced as illustrated in Fig 8 Take the disassembling step in reverse Re...

Page 6: ...securing Trigger assembly Trigger valve stem Trigger valve section Trigger assembly Adjuster assy Change rod Pliers Remove Trigger assembly and Change rod from Housing set Remove the following Spring...

Page 7: ...2 in places Fig 14 Fig 14 Fig 13 step of 1R268 for receiving 3mm Spring pin 1R268 Spring pin 3 20 Spring pin 3 32 3pcs Spring pins 3 20 3 32 DISASSEMBLING 4 4 Trigger assembly 1 Remove Contact arm and...

Page 8: ...plate Lever stopper plate Face the wide hook of Torsion spring 6 to Lever Match the arch ends of Stopper plate and Lever to make a cylinder for Torsion spring 6 narrow hook arch ends of Stopper plate...

Page 9: ...assy can be disassembled without removing Spring pins around Trigger assembly and Trigger valve section Slide plate Turn Adjuster piece 90 left in Upper yoke as illustrated below Adjuster piece can be...

Page 10: ...as illustrated in Fig 21 3 Disassemble Door from Driver guide as illustrated in Fig 22 Fig 21 Fig 22 ASSEMBLING DISASSEMBLING DISASSEMBLING Front cushion M8x30 Hex socket head bolt 4pcs Remove four M8...

Page 11: ...ove Retaining ring R 24 while holding Cup washer with your finger Because Cup washer is slung by Compression spring 9 and Compression spring 10 Now the following parts are disassembled from Driver gui...

Page 12: ...ver guide mount Compression spring 3 to the elliptic hole of Feeding claw While pressing Compression spring 3 with slotted screwdriver insert Piston into Driver guide And push Piston to the position w...

Page 13: ...ete Magazine cap complete can be separated from Magazine as illustrated below M5x20 Hex socket head bolt Take the disassembling step in reverse ASSEMBLING Take the disassembling step in reverse 4 9 Do...

Page 14: ...ated in Fig 29 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 Mak...

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