Hitachi DH38MS [10/76] English
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Hitachi DH38MS [10/76] English

Hitachi DH38MS [10/76] English
9
English
NOTE:
Turn the selector lever (do not push the button) to
check if it is completely locked and make sure that
it does not turn.
(2) When fixing working positions of tools such as cold
chisel, etc.,
(a) Push the button, release lock and turn the selector
lever.
Align ▲ of the selector lever and
of the lever
holder as illustrated in Fig. 7.
(b) Release the button to lock the selector lever.
(c) Turn the grip as illustrated in Fig. 8 and fix the
tool to the desired working direction.
(d) Switch the selector lever to “hammering”
according to the procedures mentioned in the
above item (1) and secure the position of the tool.
5. Warming up (Fig. 9)
The grease lubrication system in this unit may
require warming up in cold regions.
Position the end of the bit so makes contact with
the concrete, turn on the switch and perform the
warming up operation. Make sure that a hitting
sound is produced and then use the unit.
CAUTION:
When the warming up operation is performed, hold
the side handle and the main body securely with
both hands to maintain a secure grip and be careful
not to twist your body by the jammed drill bit.
DRILLING AND DRIVING-IN OPERATIONS FOR
ANCHORS
1. When a taper shank adapter is used. (Fig. 10)
(1) Install drill bit with taper shank in the taper shank
adapter.
(2) Turn the power on and drill a base hole to the depth
sounded by indicating groove on the drill bit.
(3) After cleaning out dust with a syringe, attach the
plug to the anchor tip and drive in the anchor with
a manual hammer.
(4) To remove the drill bit (taper shank), insert the
cotter into the slot of the taper shank adapter and
strike the head of the cotter with a manual hammer
supporting on a rest. (Fig. 11)
USING DRILL CHUCK, CHUCK ADAPTER
Note that this machine can be used at “rotation only”
if separately sold parts such as drill chuck and chuck
adapter are attached. Use it with the selector lever
positioned at “rotation + hammering”.
CAUTION:
During operation, be sure to grip the handle and
the side handle firmly to prevent your body from
swaying.
(1) Switching to “rotation + hammering”
For switching to “rotation + hammering”, follow the
same procedures mentioned in [3. When drilling at
“rotation + hammering”].
(2) Attaching chuck adapter to drill chuck (Fig. 12)
(a) Attach the chuck adapter to the drill chuck.
(b) The SDS max shank of the chuck adapter is
equivalent to the drill bit. Therefore, follow the
same procedure as [How to install tool] for
attaching and detaching.
If you continue to turn the tool with slight pressure,
you can feel a spot where there is a hitch. At that
spot, pull the grip to the direction of an arrow mark
and insert the tool all the way until it hits the
innermost end.
Releasing the grip reverts the grip and secures the
tool in place.
(3) Pull the tool to make sure it is locked completely.
(4) To remove the tool, fully pull the grip in the direction
of the arrow and pull out the tool.
HOW TO USE THE ROTARY HAMMER
NOTE: Ensure that the wing bolt in the side handle is
properly tightened before using the tool.
1. How to drill holes (Fig. 3)
(1) Pull the switch trigger after applying the drill bit
tip to the drilling position.
(2) It is unnecessary to forcibly press the rotary hammer
main body. It is sufficient to slightly press the rotary
hammer to an extent that shavings are freely
discharged.
CAUTION:
Although this machine is equipped with a safety
clutch, if the drill bit becomes bound in concrete
or other material, the resultant stoppage of the drill
bit could cause the machine body to turn in reaction.
Ensure that the main handle and side handle are
gripped firmly during operation.
2. How to chisel or demolish (Fig. 4)
By applying the tool tip to the chiseling or
demolishing position, operate the rotary hammer
by utilizing its empty weight.
Forcible pressing or thrusting is unnecessary.
3. When drilling at “rotation + hammering”:
CAUTION:
If you switch the selector lever during motor rotation,
the tool can start to rotate abruptly, resulting in
unexpected accidents. Be sure to switch the selector
lever when the motor is at a complete stop.
(1) Switching to “rotation + hammering”
(a) Push the button, release lock and turn the selector
lever clockwise.
(b) Align ▲ of the selector lever and
of the lever
holder as illustrated in Fig. 5.
(c) Release the button to lock the selector lever.
NOTE:
Turn the selector lever (do not push the button) to
check if it is completely locked and make sure that
it does not turn.
4. When demolishing and chiseling at “hammering”:
CAUTION:
䡬 If the selector lever is switched during motor rotation,
the tool can start to rotate abruptly, resulting in
unexpected accidents. Make sure to switch the
selector lever when the motor is at a complete stop.
䡬 If the bull point or cold chisel is used at the position
of ”rotation + hammering”, the tool can start to
rotate, resulting in unexpected accidents. Make
sure that they are used at the position of
”hammering”.
(1) Switching to ”hammering”
(a) Push the button, release lock and turn the selector
lever counterclockwise.
(b) Align ▲ of the selector lever and
of the lever
holder as illustrated in Fig. 6.
(c) Release the button to lock the selector lever.
01Eng_DH38MS_EE 4/27/09, 18:259

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English If you continue to turn the tool with slight pressure you can feel a spot where there is a hitch At that spot pull the grip to the direction of an arrow mark and insert the tool all the way until it hits the innermost end Releasing the grip reverts the grip and secures the tool in place 3 Pull the tool to make sure it is locked completely 4 To remove the tool fully pull the grip in the direction of the arrow and pull out the tool HOW TO USE THE ROTARY HAMMER NOTE Ensure that the wing bolt in the side handle is property tightened before using the tool 1 How to drill holes Fig 3 1 Pull the switch trigger after applying the drill bit tip to the drilling position 2 It is unnecessary to forcibly press the rotary hammer main body It is sufficient to slightly press the rotary hammer to an extent that shavings are freely discharged CAUTION Although this machine is equipped with a safety clutch if the drill bit becomes bound in concrete or other material the resultant stoppage of the drill bit could cause the machine body to turn in reaction Ensure that the main handle and side handle are gripped firmly during operation 2 How to chisel or demolish Fig 4 By applying the tool tip to the chiseling or demolishing position operate the rotary hammer by utilizing its empty weight Forcible pressing or thrusting is unnecessary 3 When drilling at rotation hammering CAUTION If you switch the selector lever during motor rotation the tool can start to rotate abruptly resulting in unexpected accidents Be sure to switch the selector lever when the motor is at a complete stop 1 Switching to rotation hammering a Push the button release lock andturn the selector lever clockwise b Align of the selector lever and f T of the lever holder as illustrated in Fig 5 c Release the button to lock the selector lever NOTE Turn the selector lever do not push the button to check if it is completely locked and make sure that it does not turn 4 When demolishing and chiseling at hammering CAUTION O If the selector lever is switched during motor rotation the tool can start to rotate abruptly resulting in unexpected accidents Make sure to switch the selector lever when the motor is at a complete stop O If the bull point or cold chisel is used at the position of rotation hammering the tool can start to rotate resulting in unexpected accidents Make sure that they are used at the position of hammering 1 Switching to hammering a Push the button release lock andturn the selector lever counterclockwise b Align of the selector lever and T of the lever holder as illustrated in Fig 6 g c Release the button to lock the selector lever NOTE Turn the selector lever do not push the button to check if it is completely locked and make sure that it does not turn 2 When fixing working positions of tools such as cold chisel etc a Push the button release lock and turn the se lector lever Align of the selector lever and of the lever holder as illustrated in Fig 7 b Release the button to lock the selector lever c Turn the grip as illustrated in Fig 8 and fix the tool to the desired working direction Id Switch the selector lever to hammering according to the procedures mentioned in the above item 1 and secure the position of the tool 5 Warming up Fig 9 The grease lubrication system in this unit may require warming up in cold regions Position the end of the bit so makes contact with the concrete turn on the switch and perform the warming up operation Make sure that a hitting sound is produced and then use the unit CAUTION When the warming up operation is performed hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed drill bit DRILLING AND DRIVING IN OPERATIONS FOR ANCHORS 1 When a taper shank adapter is used Fig 10 1 Install drill bit with taper shank in the taper shank adapter 2 Turn the power on and drill a base hole to the depth sounded by indicating groove on the drill bit 3 After cleaning out dust with a syringe attach the plug to the anchor tip and drive in the anchor with a manual hammer 4 To remove the drill bit taper shank insert the cotter into the slot of the taper shank adapter and strike the head of the cotter with a manual hammer supporting on a rest Fig 11 USING DRILL CHUCK CHUCK ADAPTER Note that this machine can be used at rotation only if separately sold parts such as drill chuck and chuck adapter are attached Use it with the selector lever positioned at rotation hammering CAUTION During operation be sure to grip the handle and the side handle firmly to prevent your body from swaying 1 Switching to rotation hammering For switching to rotation hammering follow the same procedures mentioned in 3 When drilling at rotation hammering 2 Attaching chuck adapter to drill chuck Fig 12 a Attach the chuck adapter to the drill chuck b The SDS max shank of the chuck adapter is equivalent to the drill bit Therefore follow the same procedure as How to install tool for attaching and detaching

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