Assembling The Weighing Cell - Precisa 320 XT Serviceanleitung

320 XT/XB/IP65

4.8 Assembling the weighing cell

4.8.1 Assembling the balance arm
[7]
1. To facilitate the assembly, the chassis can be placed on the assembly plate → Pay attention
to the floating sensor!
2. Place the assembly jigs [7] + [8] with 2 assembly pins [9] on the chassis, position them hori-
zontally using the alignment jig [15] and tighten the two assembly pins [9] with a No. 4 box
spanner.
3. Carefully introduce the balance arm (19/p.12) over the pot (34/p.12) and past it to the floa-
ting sensor.
4. Assemble the balance arm with 2 assembly pins [9] loosely behind the assembly jigs. The
balance arm must remain moveable.
5. The right inner assembly pin of the assembly jig [8] can now be firmly tightened.
6. The left inner assembly pin of the assembly jig [7] can now be firmly tightened.
4.8.2 Assembling the coil, the magnet cover and the transport safety device
1. Place the coil onto the balance arm, centre it with the centring spigot [12] and fix it tightly
with 2 brass screws (21/p.12) and 2 washers (27/p.12).
2. The centring spigot must be smoothly removable.
3. Pre-fix the magnet cover (8/p.12) with its left and right screw (23/p.12) .
4. Pre-assemble the transport safety device (4/p.12) with the third screw (23/p.12) and spring
washer (28/p.12) → tighten gently.
5. The centring bush [17] shall be introduced between the balance arm-pilot and the transport
safety device to assure constant annular grap. Tighten the screw (23/p.12) and remove the
centring bush.
Precisa Gravimetrics AG
[9]
Index d1
[15]
Single Reference Weight Version
[8]
[9]
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