OHAUS EXPLORER, Service Manual, Page: 35 / 114

3-15
CHAPTER 3 REPAIR PROCEDURES
3.1.20 Calibration Motor Removal from High Capacity Top Loader Balance (Cont.)
Figure 3-20. Position Sensor Assembly Mounting.
Figure 3-21. Force Coil Removal.
3.1.22 Installing the Position Sensor Assembly for Monoblock High Capacity Top Loader
Balance
1.When replacing the Position Sensor, solder in the reference resistor.
2.Place the Position Sensor on the coil housing.
3.Insert the three screws (a) and tighten. See Figure 3-20.
4.Adjust the Position Sensor as described in paragraph 3.1.27.
NOTE: Adjustment is possible only when the Monoblock is not yet screwed to the formed chassis.
3.1.23 Removing the Force Coil Lever Assembly from Monoblock in High Capacity Top
Loader Balance
1.Unscrew Contact Board (b) at the side. Use
care as the coil wires could break.
2.Insert the Centering Pins (c) in the holes pro-
vided.
3.Lift the Cover Plate (d) held in place by a
magnetic field over the coil form.
4.Carefully unscrew Lever Screws (a) while se-
curing the Locking Nuts on the opposite side.
Remove screws.
5.Take out Centering Pins (c).
6.Note the position of the height adjustment screw
(f). Turn the height adjustment screw (f) so
that the Lever can be withdrawn.
7.Carefully withdraw Lever.
a
Lever
b
a
c
d
f
Position
Sensor
5.Unscrew two fastener screws (3) of the Calibration Bracket (4) and carefully remove Bracket.
6.Unscrew two fasteners screws (6) of the Calibration Motor and remove the Motor.
3.1.21 Position Sensor Assembly Removal from Monoblock in High Capacity Top Loader
Balance
1.Unscrew the three fastener screws ( a ) of the
Position Sensor Assembly. See Figure 3-20.
2.Remove the Position Sensor Assembly.