Hitachi G10SR, Instruction Manual And Safety Instructions

Page: 13 / 48

English
13
5. Move the grinder in the proper
direction.
When using a new depressed center
wheel in direction A (Fig. 2), the
wheel edge may cut into the
workpiece. In this case, grind in
direction B (Fig. 2).
Once the wheel edge is worn, the
workpiece can be ground in both
directions.
NOTE: The wheel provided (resinoid wheel) is rated as Class A grain and # 36 grain size. It
is most suitable for heavy grinding of steel and other types of materials.
6. Adjust operation to desired finish.
For a fine finish, decrease pressure by lifting slightly. Grind slowly and at the appropriate
speed.
CAUTION: The revolving depressed center wheel will creste air turbulence.
Do no lay the grinder down in areas of dust or dirt until it has come to a
complete stop.
DEPRESSED CENTER WHEEL ASSEMBLY AND DISASSEMBLY
WARNING:
Never attempt to assemble or disassemble the depressed center wheel
while the grinder is capable of being turned “on”.
Be sure power switch is in the “OFF” position and the electrical cord has
been disconnected from the receptacle.
1. Assembling
(1) Turn the disc grinder upsidedown so that
the spindle is facing upward.
(2) Align the oval-shaped indentation of the
wheel washer with the notched part of the
spindle, then attach them.
(3) Fit the protuberance of the depressed center
wheel onto the wheel washer.
(4) Screw the wheel nut onto the spindle.
(5) While pushing the lock pin with one hand,
lock the spindle by turning the depressed
center wheel slowly with the other hand.
Tighten the wheel nut by using the supplied
wrench as shown in Fig. 3.
CAUTION: Tighten the wheel nut securely
and confirm that the depressed
center wheel is not wobble.
2. Disassembling
To remove the depressed center wheel,
follow the above-mentioned procedure in
reverse order.
A B
15
°°
~30
°
Fig. 2
Wheel
Nut
Wheel
Guard
Lock
pin
Wrench
Notch
Fig. 3
Depressed
Center
Wheel
Wheel
Washer
Spindle