SERVICE MANUAL SERIES 320 XR - Precisa

Series 320 XRAssembling the weighing cell(below).4. Tighten the first (upper) centring spigot and then remove the second (lower) centring spigot, withouttouching the flexure sheet in doing so.5. Fasten the flexure sheet on the support piece side with base (7/B2) and screw (29/B2) → see fig. 7on page D12.6. Remove the second (upper) centring spigot and fasten the flexure sheet on the chassis side withbase (7/B2) and screw (29/B2).7.5 Assembling the support piece and inner conefig. 81291391. Introduce the pre-assemble support piece over the two inner assembly posts [9] → Fig. 82. It must be possible to push the support piece smoothly over the two inner assembly pins. In case thesupport piece can not pushed smooth-running over the two assembly pins, unscrew pin [9] and tightenit again after.3. Locate the support piece and the balance arm using the flexure sprap anchor [12] and the twoscrews [13] → Fig. 84. The support piece and balance arn are now fixed.5. Assemble the inner cone (14/B2) to the support piece with 3 screws (32/B2)6. Fix the sensor mechanism plate (2/B2) with 2 screws ( 22/B2) to the chassis.7.6 Assembling the flexure holders1. Introduce the two pins for flexure holder [6] in the first pre-assembled flexure holder (see “Installingthe new flexure sheets” on page E9) in such a way that the shoulder of the pins is opposite thescrew heads on the flexure holder.Precisa Gravimetrics AG Index b2 D13