Hitachi DH 38YE User Manual download pdf (Page 17)

English

HOW TO USE THE CORE BIT

When boring penetrating large hole use the core

bit. At that time use with the center pin and the

core bit shank provided as optional accessories.

1. Mounting

CAUTION:

䡬 Be sure to turn power OFF and disconnect the

plug from the receptacle.

(1) Mount the core bit to the core bit shank.

(Fig. 10)

Lubricate the thread of the core bit shank to

facilitate disassembly.

(2) Mount the core bit shank to the rotary hammer.

(Fig. 11)

(3) Insert the center pin into the guide plate until it

stops.

(4) Engage the guide plate with the core bit, and

turn the guide plate to left or right so that it

does not fall even if it faces downward.

(Fig. 12)

2. How to bore (Fig. 13)

(1) Connect the plug to the receptacle.

(2) A spring is installed in the center pin. Push it

lightly to the wall or the floor straight. Connect

all over the surface of the core bit tip and start

operating.

(3) When boring about 3/16" (5 mm) in depth the

position of the hole will establish. Bore after

that removing the center pin and the guide plate

from core bit.

(4) Application of excessive force will not only

expedite the work, but will deteriorate the tip

edge of the drill bit, resulting in reduced service

life of the rotary hammer.

CAUTION:

䡬 When removing the center pin and the guide

plate, turn OFF the switch and disconnect the

plug from the receptacle.

Fig. 10

Core Bit

Core Bit Shank

Fig. 11

Fig. 13

Fig. 12

Center Pin

Core Bit

Core Bit Tip

Guide Plate

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Hitachi DH 38YE User Manual Page 17

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