DeWalt DCH417 Original Instructions Manual page 38

EnGLIsh
or securing the tool to a person or object during use. DO
NOT suspend tool overhead or suspend objects from the
belt hook.

WARNING: To reduce the risk of serious personal
injury, ensure the screw holding the belt hook is secure.
IMPORTanT: When attaching or replacing the belt hook, only
use the screw 18 that is provided with the belt hook. Be sure to
securely tighten the screw.
To accommodate left‑ or right‑ handed users the belt hook
can be attached to the tool using one of the slots below the
main handle on left or right side and using the provided
screw 18 installed on the underside of the main handle.
If the belt hook is not desired at all, it can be removed from
the tool.
To Install the Belt Hook
1. Insert the hook into one of the slots, on left or right side,
below the main handle.
2. Install the screw on the underside of the main handle. Be
sure to securely tighten the screw.
To Remove or Move the Belt Hook
1. Remove the screw located on the underside of the
main handle.
2. Pull the belt hook away from the main handle.
3. Insert the hook into one of the slots, on left or right side,
below the main handle, or install the screw on the underside
of the main handle. Be sure to securely tighten the screw.
Side Handle (Fig. A)

WARNING: To reduce the risk of personal injury, ALWAYS
operate the tool with the side handle properly installed.
Failure to do so may result in the side handle slipping
during tool operation and subsequent loss of control. Hold
tool with both hands to maximize control.
The side handle 5 clamps to the front of the gear case and may
be rotated 360˚ to permit right‑ or left‑hand use. The side handle
must be tightened sufficiently to resist the twisting action of
the tool if the accessory binds or stalls. Be sure to grip the side
handle at the far end to control the tool during a stall.
To loosen side handle, rotate counterclockwise.
To Adjust the Depth Rod (Fig. C)
1. Push in and hold the depth rod release button
side handle.
2. Move the depth rod 11
end of the rod and the end of the bit equals the desired
drilling depth.
3. Release the button to lock rod into position. When drilling
with the depth rod, stop when end of rod reaches surface
of material.
Bit and Bit Holder

WARNING: Burn Hazard. ALWAYS wear gloves when
changing bits. Accessible metal parts on the tool and bits
may get extremely hot during operation. Small bits of
broken material may damage bare hands.
36
12 on the
so the distance between the
The hammerdrill can be fitted with different bits depending on
the desired application. Use sharp drill bits only.
Bit Recomendations
• For wood, use twist bits, spade bits, power auger bits or
hole saws.
• For metal, use high‑speed steel twist drill bits or hole saws.
Use a cutting lubricant when drilling metals. The exceptions
are cast iron and brass which should be drilled dry.
16
• For masonry, such as brick, cement, cinder block, etc., use
carbide‑tipped bits rated for percussion drilling.
SDS plus® Bit Holder (Fig. G)
nOTE: Special adapters are needed to use the SDS plus® tool
holder with straight shank bits and hexagonal screwdriver bits.
Refer to Optional Accessories.
To insert a drill bit or other accessory:
1. Insert the shank of the bit about 19 mm into SDS plus®
tool holder 9
2. Push and rotate bit until it locks in place. The bit will be
securely held.
3. To release bit, pull the sleeve
Keyless Chuck Removal (Fig. G,I)
On some hammerdrills, a keyless chuck can be installed in place
of the SDS plus® bit holder.

WARNING: Never use standard chucks in the rotary
hammering mode.
Replacing the sDs plus® Bit holder with the keyless
chuck (Fig. I)
1. Select hammering only mode (see Operation Modes), this
locks the spindle to prevent it from rotating when unlocking
the removable tool holder.
2. Turn the locking collar
pull the installed bit holder off.
3. Push the keyless chuck
the locking collar
4. To replace the keyless chuck with the SDS plus® bit holder,
first remove the keyless chuck the same way as the SDS
plus® bit holder was removed.
5. Then replace the SDS plus® bit holder the same way as the
keyless chuck was replaced.
To Insert a Drill Bit or accessory in keyless chuck (Fig. G)
1. Grasp the sleeve
and use the other hand grasping the base of the chuck.
2. Rotate the sleeve
front) far enough to accept the desired accessory.
3. Insert the accessory about 19 mm into the chuck and
tighten securely by rotating the chuck sleeve clockwise
with one hand while holding the tool with the other hand.
Continue to rotate the chuck sleeve until several ratchet
clicks are heard to ensure full gripping power.
4. Be sure to tighten chuck with one hand on the chuck sleeve
and one hand holding the tool for maximum tightness.
5. To release the accessory, repeat Steps 1 and 2 above.
.
20 back and remove the bit.
10 into the unlocked position and
23 onto the spindle
10 into the locking position.
22 of the keyless chuck
22 counterclockwise (as viewed from the
21 and turn
23 with one hand