Sega 999-1108 - Manual (Page 67)

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11. ACCELERATOR & BRAKE
Before starting to work, ensure that the Power SW is OFF. Failure to observe
this can cause electric shock or short circuit.
Use care so as not to damage wirings. Damaged wiring can cause electric
shock or short circuit.
Do not touch undesignated places. Touching places not designated can cause
electric shock or short circuit.
This work should be performed by the Location's Maintenance Man or
Serviceman. Performing work by non-technical personnel can cause electric
shock hazard.
When performing work such as parts replacement other than those specified
in this manual, be sure to contact where you purchased the product from.
Confirm the work procedures and obtain precautions from where you
purchased the product from prior to performing work. Inappropriate parts
replacement and/or installation with erroneous adjustment can cause an
overload or the parts to come into contact, resulting in an electric shock, a
short circuit, and a fire.
If Accel. and Brake operation is not satisfactory, adjustment of Volume installation position or
Volume replacement is needed. Also, be sure to apply greasing to the gear mesh portion once
every 3 months.
11 - 1 ADJUSTING AND REPLACING THE V.R.
The appropriate value for both ACCEL. Volume and Brake Volume is under 30H when released
and over C0H when stepped on. Check Volume values in the TEST mode. Since work is
performed inside the energized cabinet, be very careful so as not to touch undesignated places.
Touching places not specified can cause electric shock or short circuit.
Take out the 2 truss screws and
remove the Front Cover from the
Accel. & Brake Unit
(FIG. 11. 1 a).
Loosen the screw which secure the
Potentiobase, and adjust the
Volume value by moving the Base.
(FIG. 11. 1 b)
Secure the Potentiobase.
Perform Volume setting in the
Volume setting mode.
TRUSS SCREW (2)
M4 X 8, chrome
FRONT COVER
FIG. 11. 1 a
SCREW
M512,
w/flat & spring washers
POTENTIOBASE
V.R.
220-5484
220-5373
FIG. 11. 1 b
1
2
3
4