OPERATION ADJUSTMENTS Belt Tension Adjustment (Figure 9) 1. Remove the belt protector (item 5) by removing the six 3/8"NC x 3/4" carriage bolts and six serrated flange nuts (items 67). 2. Loosen the eight 1/2"NC nylon insert locknut (item 1). 3. Tighten eyebolt nuts (item 2). With a belt tension gauge check for a 35lbs tension and a 3/16" displacement in the center in all belt axis (item 3). 4. Realign the driving pulley assembly (item 4) by pressing the support against the bolted guides. Tighten loosely the eight 1/2"NC nylon insert locknuts (item 2) loosen previously. With a long ruler that may cover the distance between pulleys, check the pulleys alignment, If alignment is good, tighten the eight 1/2"NC nylon insert locknuts (item 2). If not, follow next step.
OM 0400-A
5. If the belts are not well aligned, loosen the guide nuts and the eyebolt nuts. Align the two pulleys, slightly tighten the eight 1/2"NC nylon insert locknuts (item 2). Press the guides against the driving pulley assembly (item 4) and tighten guide nuts. Redo step 2. Check the pulleys alignment and if the driving pulley assembly is well pressed on guides. If so, tighten firmly the eight 1/2"NC nylon insert locknuts. If not, repeat procedure. 6. Reinstall the belt protector (item 5) with the six 3/8"NC x 3/4" carriage bolts and six serrated flange nuts (items 6-7).
Figure 9
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