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(3) Piston Bumper [23] and the related parts (See Fig. 13.)
Tools required
Hexagonal bar wrench (4 mm)
Roll pin puller (3 mm (0.118") dia.)
8 mm (0.315") spanner
(a) Disassembly
Pull out the Roll Pin D3 x 45 [46] and remove the Hex. Socket Hd. Bolt M5 x 18 [34] to remove the Guard
[36].
Remove the Machine Screw (W/Washers) M5 x 14 (Black) [78] and pull out the entire magazine section
from the Handle Arm [69].
Remove the Machine Screw (W/Sp. Washers) M5 x 16 (Black) [47] and pull out the entire magazine section
from the Nose [26].
Remove the four Nylock Hex. Socket Hd. Bolt M5 x 16 [27]. Then Piston Bumper [23] can be removed
together with the Nose [26].
Remove the Hex. Socket Hd. Bolts M5 x 10 [29]. Then Guide Plate [28], Blade Guide [31], etc. can be
removed.
(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points.
Plunger (B) [60] is apt to come off during disassembly. Be sure to check that Plunger (B) [60] is securely
mounted during reassembly.
Mount the Roll Pin D3 x 45 [46] without fail.
Fig. 12
Head Cap Ass'y [8]
Exhaust Cover [4]
Hex. Socket Hd.
Bolt M5 x 20 [3]
Top Cover [2]
Hex. Socket Hd.
Bolt M5 x 25 [1]
Exhaust Valve [7]
Gasket (C) [6]
Gasket (B) [5]
Tool required:
Hexagonal bar wrench (4 mm)
(a) Disassembly
As described in paragraph 10-2-(1), remove the Exhaust
Cover [3].
Remove the two Hex. Socket Hd. Bolts M5 x 25 [1] and,
such as illustrated in Fig. 12, disassemble the Head Cap
Ass'y [8], the Exhaust Valve [7] and Gasket (C) [6] in that
order.
(b) Reassembly
Reassembly can be accomplished by following the
disassembly procedures in reverse. Ensure that the Hex.
Socket Hd. Bolts M5 x 25 [1] are properly tightened to
specified torque (85 5 kgf
•
cm, 6.1 0.4 ft-lb.).
(2) Head Cap Ass'y [8], Exhaust Valve [7] and the related parts (See Fig. 12.)
