Hitachi NV 65AF3 Technical Data And Service Manual page 30

Retaining Ring (E-type)
for D4 Shaft [21]
Body [23]
Trigger Piece [41]
Trigger Arm (B) [43]
Trigger [45]
Trigger Spring [46]
Pushing Lever Guide [47]
Fig. 17 Disassembly and reassembly of the control valve section
Roll Pin D2.5 x 16 [44]
Rod
Body [23]
Fig. 18
Roll Pin D3 x 22 [59]
Roll Pin D3 x 28 [60]
Roll Pin D3 x 28 [60]
Lock Knob [61]
Lock Spring [63]
Steel Ball D3.175 [62]
Spring [42]
3 Insert a hooked wire into the hole of Valve
Bushing (B) [67] as shown in Fig. 19 and take
out Valve Bushing (B) [67] being careful not to
scratch the inside of Valve Bushing (B) [67].
Be careful not to scratch Valve Piston (B) [70]
and Valve Bushing (B) [67].
Do not pull out the tip of Plunger (A) [73] with
pliers or other tools.
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Head Valve O-ring
(I.D 16.8) [66]
Valve Bushing (B) [67]
O-ring (S-18) [68]
O-ring (I.D 8.8) [69]
O-ring (S-4) [55]
Valve Piston (B) [70]
O-ring (I.D 11) [71]
Plunger Spring [72]
Plunger (A) [73]
O-ring (I.D 1.8) [74]
Valve Bushing (A) [75]
Valve Bushing (B) [67]
Hole
Wire
Fig. 19