Hitachi 937984Z - Wheel Guard For G23MR Safety Instructions And Instruction Manual page 12

English
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.
[Installing and adjusting the wheel guard]
Slightly loosen the screw on the wheel
guard.
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.
After the adjustment, ensure that the screw
is securely tightened on the wheel guard
in order to fix it completely.
WARNING:
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
14 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 6,600 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)
12
If the wheel guard is not
attached properly, a broken
wheel may result in and
cause death or serious
injury.
Locating pin
Wheel guard
Across flats
Packing gland
Fig. 2