Preventive Maintenance Schedule
A regular program of preventative maintenance will help to avoid unnecessary downtime due to premature component failures.
DO NOT use solvents for cleaning.
| Daily | Inspect all pneumatic motions for smooth action and belt wear. |
|---|---|
| As the machine processes a case, listen for air leakage or other abnormal noises. | |
| Inspect the conveyor belts for uneven wear. | |
| With the machine running, watch for belt slippage during the case movement, and tighten the tensioner if necessary. | |
| Inspect the gear reducers for signs of oil leakage. Maintain the oil at the proper level. | |
| Inspect the pneumatic filter bowl for debris. Clean the bowl if necessary. | |
| Drain the water overflow bottle. | |
| Inspect and tighten all machine fasteners. We recommend using Loctite 242 (blue) thread locker. | |
| Inspect the rotary folder for bolt tightness; listen for banging sounds. | |
| Inspect the stopgate (optional feature) for bolt tightness; listen for banging sounds. | |
| Inspect for machine wear; listen for any irregular noise. | |
| Weekly | Inspect drive‐belts for ease of movement. |
| Check the integrity of all springs. | |
| Dust and clean all frame areas. | |
| Inspect the UHMW‐lined conveyor‐bearing backing plates for bearing material residue. | |
| Grease all leads crews, chains, sprockets, and sliding components using Fuchs FMG 387 Food Grade grease or its equivalent. |
Gear Reducer
Gear reducers should be inspected regularly for evidence of oil leakage, excessive noise or vibration in order to ensure maximum performance and life.
NOTE: The gear reducer lubricant should be changed after the initial 1,500 hours of operation and after every 5,000 subsequent hours of operation.
| Oil Leakage | Inspect the housing bolts and tighten them if necessary. Replace the oil seals if required. |
|---|---|
| Oil Temperature | Gear reducers usually run warm through an initial run‐in period. Check the reducer temperature for any unusual rise above normal levels not explained by a rise in ambient temperature. Low or high oil levels and abnormal loading are possible causes of high oil temperature. |
| Sound Level and Vibration | A change in sound level or excessive vibration can indicate low oil level, abnormal loading or worn elements. |
| Dirt Accumulation | Excessive accumulation of dirt or grease will affect the proper cooling of the unit. |
Uni-Drive Conveyor System
Drive Chain Tension
Chain tension is preset at the factory but if the drive becomes noisy or needs adjustment then adjust as shown below. Proper tension is achieved when the horizontal sag in the chain measures between 1/8 inch and 1/4 inch (3.1 and 6.4 mm) with drive belts in a fully opened position.
The optional BEL 290T Spare Parts Maintenance Kit contains all of the parts necessary for maintaining the Uni‐Drive Conveyor System. Contact Wexxar for the kit's price and availability.
Side-belt Replacement and Tracking
The belts are replaced by removing the top cover assemblies from each side unit. We recommend replacing both belts at the same time.
To reassemble the drive assembly:
1. Reverse Steps 8 to 4.
2. Refer to Step 3 to adjust the Top and Bottom Tensioning Screws so that the belt can move without riding up or down.
Set the belt tension just enough to prevent the belts from slipping during use. Excessive tension will cause premature belt and bearing wear.
3. Follow Steps 2 to 1 to replace the case infeed guide plates.
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