Hitachi DH 14DL Technical Data And Service Manual page 26

Reassembly can be accomplished by following the disassembly procedure in reverse. However, special
attention should be given to the following items.
1. Reassembly of the cylinder section
Mount the O-ring (P-15)
[22], Second Hammer [20],
O-ring (B) [21] and
Hammer Holder [23] in the
Cylinder [19]. Push the
new Stopper Ring [2] in the
Cylinder [19] at an angle
and fit it in the groove with
a hand press using the
stopper ring jig [J-234].
Check that the Stopper
Ring [2] is securely fitted in
the groove of the Cylinder
[19] viewing from the 4 mm
dia. hole (2 pcs.) on the
Cylinder [19].
2. Mounting the lever
Mount the Second Gear [17], Spring (A) [16] and Washer [11] to the Cylinder [19] and secure them with
the Retaining Ring for D25 Shaft [10]. Push this assembly up to the tip of the Gear Cover [7] and mount the
Holder Spring [6], Holder Plate [5] and Steel Ball D7.0 [18] to the tip of the Cylinder [19]. Mount the Ball
Holder [4], Grip [3], Stopper Ring [2] and Front Cap [1]. Mount the Thrust Washer [26] to the Cylinder [19].
Show the Lever [12] in the Gear Cover [7] and fit the Stopper [14] in the groove of the Lever [12] then push
the Lever [12] in the Gear Cover [7] hard. Secure the Lever [12] to the Gear Cover [7] with the Machine
Screw M4 x 5 [15]. When assembling the component parts, be sure to set the Lever [12] to "rotation and
hammering" ( marks).
3. Press-fitting the first gear
Press-fit the First Gear [40] aligning
with the shaft end surface of the
Second Shaft [36]. After press-
fitting the First Gear [40], check
that the inside ring of the
Reciprocating Bearing [38] turns
smoothly.
Reassembly
Reassembly of the cylinder section
4 mm dia. hole (2 pcs.)
Stopper ring jig
Stopper Ring [2]
[J-234]
Press-fitting the first gear
Reciprocating
Bearing [38]
23
Groove for the stopper ring
O-ring (P-15) [22]
Second Hammer [20]
Cylinder [19]
O-ring (B) [21]
Hammer Holder [23]
First Gear [40]
Second Shaft [36]
Press-fitting position
of the First Gear [40]