Hitachi DH 36DL, Технические данные и руководство по обслуживанию, Страница: 21 / 54

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Disassembly of the tool retainer
3. Disassembly of the tool retainer
Slide the Grip [3] fully in the arrow direction and remove the Front Cap [1] . Pulling the Grip [3] , remove the
Stopper Ring [2] with a retaining ring puller. Then the Grip [3] , Ball Holder [4] , Steel Ball D7.0 [17] , Holder
Plate [5] , Holder Spring [6] and Washer (B) [7] can be removed from the Cylinder [18] .
4. Removal of the cylinder and the second gear (slip mechanism section)
Remove the Gear Cover (A) [10] from the Inner Cover Ass'y [43] and remove the entire tool retainer.
Remove the Retaining Ring for D20 Shaft [8] with a retaining ring puller. Stand Gear Cover (A) [10] in this
state and pull out the Cylinder [18] from Gear Cover (A) [10] with a hand press. Then the Sleeve [12] can
be removed from the Cylinder [18] . Remove the Retaining Ring for D30 Shaft [29] from the Cylinder [18]
with a retaining ring puller. Then the Second Gear [26] , Spring (A) [27] and Washer (A) [28] can be
removed from the Cylinder [18] .
5. Removal of the cylinder and the second hammer
Remove the Stopper Ring [37] from the inside diameter portion of the Cylinder [18] . Then the Second
Hammer [30] , O-ring (1AP-20) [31] , Hammer Holder [32] , O-ring (B) [33] , Damper (A) [34] , O-ring (C) [35]
and Damper Holder [36] can be removed from the Cylinder [18] . Insert the no-hole side of stopper ring jig
(A) (J-341) into the Cylinder [18] until it contacts the end surface of the Damper Holder [36] . Hold the
Cylinder [18] and the end surface of stopper ring jig (A) (J-341) with a vise, and compress Damper (A) [34]
(it moves a little when the Stopper Ring [37] is pressed with punch (C) (J-341)). Insert punch (C) (J-341)
into the 5-mm diameter holes (2 places) in the Cylinder [18] and tap the outside of the Stopper Ring [37]
until the Stopper Ring [37] cannot be seen from the 5-mm diameter holes (2 places) to remove the Stopper
Ring [37] from the groove of the inside diameter portion of the Cylinder [18] . Then remove the Cylinder [18]
from the vise and pull out the Stopper Ring [37] from the inside diameter portion of the Cylinder [18] with
ring puller jig (B) (J-341) being careful not to pop out the Stopper Ring [37] . At reassebmly, replace the
Stopper Ring [37] with new one as the removed Stopper Ring [37] is deformed. To prevent idle hammering,
also replace O-ring (C) [35] with new one at reassembly.
Holder Plate [5]
Front Cap [1]
Steel Ball D7.0 [17]
Grip [3]
Stopper Ring [2]
Holder Spring [6]
Ball Holder [4]
Retaining
Ring for D20
Shaft
[8]
Washer (B) [7]