Issue link: http://alpine.uberflip.com/i/600006
17 RollerPress P R O D U C T M A N U A L EN Step 4 – Inspect the shaft for any unusual signs of wear or fatigue. If detected, contact Alpine Equipment Technical Support for specific repair instructions. Step 5 – Install the new bearing making sure to replace ALL of the shim material. ! CAUTION If all the shims are not replaced, the roller gap will change. Step 6 – Tighten the bearing bolts. Step 7 – Check the gap between the rollers. If the gap has changed, see the previous section on "Adjusting the Gap between the Rollers". 5.3. Replacing the Roller Chain ! WARNING Electricity can kill. Prior to performing any work on the RollerPress, verify that all power to the machine has been turned off following OSHA-approved lockout/tagout procedures (OSHA REGULATION 29 CFR 1910.147). To replace a broken chain follow steps 1-6 below: Step 1 – Loosen the roller drive chain by loosening the tensioner sprocket nuts (Figure 13). Step 2 – Remove the master connecting link. NOTE The master connecting link is one of the chain links that has the ability to come apart in order to break the chain. Step 3 – Remove the old chain from sprockets. Step 4 – Replace the chain on sprockets with new chain. Step 5 – Insert the master connecting link. Step 6 – Tighten the chain tensioner (refer to Section 6.2). ! CAUTION Failure to use steel shim material will adversely affect the pressing capacity of the machine. Step 4 – Tighten the bearing bolts and check gap to verify the desired dimension; the spacer block should slip in and out of the gap (as a feeler gauge would). Step 5 – Adjust the roller chain (refer to section 6.2) and replace chain guards. Step 6 – Run a test board through the machine to verify the roller gap. The boards should be run at three places on the roller: 12 inches from the right end, in the middle and 12 inches from the left end. NOTE It is recommended to set the gap at 1-15/32" unless the material thickness is consistently less than 1-7/16". USE STEEL SHIM MATERIAL ONLY! Call Alpine Equipment Technical Support if additional shim material is required. 5.2. Replacing the Roller End Bearings ! WARNING Electricity can kill. Prior to performing any work on the RollerPress, verify that all power to the machine has been turned off following OSHA-approved lockout/tagout procedures (OSHA REGULATION 29 CFR 1910.147). ! WARNING The roller must be supported prior to replacing the bearings using a fork lift or other suitable lifting device. Failure to properly secure the roller could result in a serious injury or fatality. If it becomes necessary to replace one or more of the bearings, follow steps 1-7 below: Step 1 – Remove the roller drive chain guards on each end of the machine. Step 2 – Loosen the roller drive chain by loosening the tensioner sprocket nuts (Figure 10). Step 3 – Remove the two bolts that hold the bearing in place and remove the bearing (Figure 11).