Hitachi G 12S2 - Manual (Page 11)

English
11
[Installing Wheel Guard]
⅜ Slightly loosen the screw on the wheel
guard.
⅜ Install the wheel-guard-locating pin in
line with the across flats of the packing
gland, turn it to the angle suitable for
operation, and make adjustment.
⅜ After the adjustment, ensure that the
screw is securely tightened on the wheel
guard in order to fix it completely.
WARNING:
If the wheel guard is not attached properly,
a broken wheel may result in and cause
death or serious injury.
7. Thoroughly check that the depressed
center wheel is free of cracks, splits and
other abnomalities before mounting.
Make sure it is firmly clamped and has
been properly mounted. Refer to page
13 of this manual for Depressed Center
Wheel Assembly and Disassembly
8. Test the grinder before using.
Before actually beginning the grinding work, test the grinder by first clearing the area of
all other personnel. Make sure the wheel guard is in place and that you are wearing eye
protection. Turn the grinder “on”, and make sure the grinder runs smoothly and shows
no abnormalities.
Duration of the trial run is as follows:
When depressed center wheel is replaced .................. 3 minutes or more
When starting daily work .............................................. 1 minute or more
9. Use only properly rated depressed center wheels.
Use only depressed center wheels rated at 13300 RPM or more.
Using a depressed center wheel rated less can lead to wheel disintegration during
operation and cause serious bodily injury.
10.Check the push button.
Make sure that the push button is disengaged by pushing push button two or three
times before turning on the grinder. (Fig. 5)
Fig. 2
Wheel Guard
Locating Pin
Across Flats
Packing Gland
6. Mounting the wheel guard
Be sure to mount the wheel guard at an angle that will protect the operator’s body from
injury by a broken wheel piece.