
-1-
Fig. 1
[11]
[1]
1. Precautions on disassembly and reassembly
WARNING: Be sure to disconnect the power cord plug from the wall outlet before conducting
repair. Otherwise, the motor may run suddenly and you could get injured.
[Bold]
numbers in the description below correspond to the item numbers in the parts list and exploded
assembly diagram for the Model DH 40MC.
1. Disassembly of the tool retainer
• Forcibly pull out the Front Cap
[1]
from the Retainer Sleeve
[28]
while pulling the Grip
[11]
in the arrow
direction as shown in Fig. 1.
• Remove the Stopper Ring
[2]
by using a retainer ring puller. Then the Grip
[11]
, Retainer Washer
[3]
,
Retainer Damper (A)
[4]
, Bit Lock Holder
[12]
, two Bit Locks
[27]
, Thrust Plate
[13]
, Retainer Spring
[14]
and Spring Holder (A)
[15]
can be removed from the Retainer Sleeve
[28]
(Fig. 2).
2. Disassembly of the hammering mechanism
(1) Removing the second hammer and striker
• Remove the Hex. Socket Hd. Bolt M6 x 25
[21]
to remove the Cylinder Case
[22]
, Spring Holder (B)
[37]
, Retainer Sleeve
[28]
and other parts from the main body.
• Remove the Second Hammer
[30]
from the Retainer Sleeve
[28]
together with the Damper Holder
[33]
,
Damper
[32]
and Damper Washer
[31]
.
• Pull out the Cylinder
[36]
from the main body together with the Lock Spring
[38]
, Lock Sleeve
[39]
,
Clutch Spring
[40]
and Clutch
[41]
.
• Remove the Striker
[34]
by tapping the end surface of the Cylinder
[36]
with a plastic hammer.
[12]
[28]
[2]
[4]
[27]
[13]
[14]
Fig. 2
REPAIR GUIDE
Disassembly
[3]
[15]
[11]