Hitachi DH 14DL Technical Data And Service Manual page 24

3. Removal of the gear cover (lever)
Remove the Machine Screw M4 x 5 [15]
securing the Lever [12] to the Stopper [14] from
the inside of the Gear Cover [7]. Pull out the
Lever [12] from the Gear Cover [7] to remove
the Stopper [14]. Push the tip of the Cylinder
[19] to remove the Cylinder [19] from the Gear
Cover [7].
4. Removal of the cylinder and the second gear (slip mechanism section)
Remove the Retaining Ring for D25 Shaft [10]
from the Cylinder [19] with a retaining ring
puller. Then the Second Gear [17], Spring (A)
[16] and Washer [11] can be removed from the
Cylinder [19].
5. Removal of the cylinder and the second hammer
Remove the Stopper Ring [2] from the inner
circumference of the Cylinder [19]. Then the
Hammer Holder [23], Second Hammer [20]
and O-ring (P-15) [22] can be removed from
the Cylinder [19].
Insert punch (A) [J-85] into the 4 mm dia. hole
(2 pcs.) of the Cylinder [19] and tap the
Stopper Ring [2] until the Stopper Ring [2]
cannot be seen from the 4 mm dia. hole
(2 pcs.) to remove the Stopper Ring [2] from
the groove of the inner circumference of the
Cylinder [19]. Then, pull out the Stopper Ring
[2] from the inner circumference of the
Cylinder [19] with a retaining ring puller (B)
(J-341) being careful not to pop out the
Stopper Ring [2]. At reassembly, replace the
Stopper Ring [2] with new one as the removed
Stopper Ring [2] is deformed.
Removal of the gear cover (lever)
Stopper [14]
Lever [12]
Removal of the cylinder and the second gear (slip mechanism)
Retaining Ring for D25 Shaft [10]
Washer [11]
Removal of the cylinder and the second hammer
4 mm dia. hole
(2 pcs.)
Stopper Ring [2]
21
Gear Cover [7]
Machine Screw
M4 x 5 [15]
Spring (A) [16]
Second Gear [17]
Cylinder [19]
Tap with a hammer.
Punch (A) [J-85]
O-ring (P-15) [22]
Second Hammer [20]
Cylinder [19]
Hammer Holder [23]