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(a) Disassembly (See Fig. 15.)
Remove the Magazine [82] as described in section 10-2-(3).
Remove the pushing lever ass'y as described in section 10-2-(3).
With the roll pin puller (3 mm (0.118") dia.), take out the Roll Pin D3 x 30 [68], and remove the Trigger [59],
Trigger Plunger [66], Plunger (B) Spring [73], Washer M5 [72] and Plunger (B) [74].
Insert a flat-blade screwdriver into the groove of the Trigger Valve Bushing [65], and loosen it by turning it to
the left, being careful not to damage the groove.
After removing the Trigger Valve Bushing [65], pull down strongly on the Valve Bushing [57] to remove the
Valve Bushing [57], Valve Sleeve (A) [69], Plunger (A) [56] and the Plunger Spring [54].
Remove the Plunger O-ring [71] inside the Valve Bushing [57] and the two O-rings (P-9) [60] inside Valve
Sleeve (A) [69] by means of a setting pin with a rounded tip (Fig. 16).
10-3. Disassembly and Reassembly of the Control Valve Section
Tools required:
Roll pin puller (3 mm (0.118") dia.)
Flat-blade screwdriver
Setting pin (with a rounded tip)
Trigger [59]
Plunger Spring [54]
Valve Bushing [57]
Plunger (A) [56]
Trigger Plunger [66]
Trigger Valve Bushing [65]
Valve Plate [64]
Roll Pin D3 x 30 [68]
Plunger (B) [74]
(b) Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
Plunger Spring [54] and Plunger (B) Spring [73] are small and apt to be twisted and lost. Be careful when
handling them.
To prevent the two O-rings on the outside of the Valve Bushing [57] from being damaged when inserted into
the body, carefully apply grease to the body hole and the outer circumference of the O-rings prior to
assembly.
* If damaged O-rings are mounted, a malfunction may occur. Be careful when handling them.
The O-ring inside the Valve Bushing [57] is small and hard to mount a little. Be careful not to lose the
O-ring when handling.
Reinstall the Valve Bushing [57] facing the four 2.5 mm dia. holes at its center to the Body Ass'y [25] side
(Fig. 17).
Fig. 15
Fig. 16
Valve Sleeve (A) [69]
Plunger O-ring [71]
Valve Bushing [57]
O-ring (P-9) [60]
Plunger (B) Spring [73]
Washer M5 [72]
Valve Sleeve (A) [69]
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