SERVICE MANUAL SERIES 320 XR - Precisa

Series 320 XRAssembling the weighing cell2. Bring the two pins with the flexure holder into position in the chassis → see fig. 8 on page E13.3. Lower the flexure holder carefully over the two pins on the chassis, until the flexure sheets justtouches the chassis and the support piece.4. Secure the flexure holder with 4 screws (28/B2) and 4 bases (7/B2).5. Push through the two pins up to the installed flexure holder.6. On the opposite side introduce the second pre-assembled flexure holder (see “Installing the new flexuresheets” on page E9) with the screw heads inwards over the two pins and lower onto the chassis,until the flexure sheets just touches the chassis and the support piece.7. Secure the flexure holder with 4 screws (28/B2) and 4 bases (7/B2).8. The two pins must be capable of being withdrawn smoothly from the flexure holder.fig. 8667.5 Assembling new flexure sheets1. Bring 2 flexure sheet (3/B2) part-no. 320-2040 into position as in fig. 9 on page E14 → slots are onthe support piece side (below).2. With a centring spigot [10], centre the flexure sheet in the hole on the chassis side (above).3. With the second centring spigot [10], centre the flexure sheet in the slot on the support piece side(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. 9on page E14.6. Remove the second (upper) centring spigot and fasten the flexure sheet on the chassis side withbase (7/B2) and screw (29/B2).Precisa Gravimetrics AG Index b2 E13