National Package
98 Series Trouble Shooting Guide
Trouble Shooting your NPS machine takes only a few minutes. Knowledge by your operators will minimize downtime during packing sessions.
| Problem | Remedy |
| Poor Moistening | |
| Dirty or worn moistening brushes | Clean and/or replace as required |
| Incorrect water level | Too wet, lower bottle. Too dry, raise. |
| Platen weight incorrect position | Too wet, move back. Too dry, move forward. |
| Machine Runs Slow, Tape Feeds Erratically | |
| Tape roll guides binding or causing the roll of tape to flop | Set tape guides to be just a little wider than the tape, centering tape through machine |
| Tape Jams (Behind Knife) | |
| Last few inches of previous roll of tape left in machine when new roll installed | Take out upper feed plate and remove scrap of tape. |
| Dull knives do not cut tape cleanly. Ragged end catches, causing jam | Replace both knife blades. |
| Springs holding tension on moveable blade broken or missing | Re-attach or replace springs |
| High humid or damp environment partially activates adhesive causing tape to stick to lower feed plate. | Store tape in AC area of building until required. |
| Tape Jams (Between Knives and Brushes) | |
| Previous length of tape left in machine when next piece is dispensed | Remove both piece, clear jam. |
| Built up adhesive residue on lower front deflector | Lift platen and clean lower front deflector |
| Brushes recently cleaned, replaced or removed | Make sure high side of both brushes face front |
| Too much platen pressure | Move weight to the rear of the plate |
| Lower deflector bent causing tape to hit too low or high on brushes | Height of plate should be approximately 1/4" below tips of brushes, adjust accordingly |
| Electric Models: | |
| Machines runs continuously (depends on model) | |
| Dirt on photocell blocking light beam | Clean with soft cloth and alcohol, or use compressed air |
| Photocell not lined up with holes in encoder disk | Adjust mounting position of photocell |
| Photocell burned out or broken | Replace photocell assembly |
| Relay defective (some models) | Replace |
| Circuit Board defective | Replace circuit board |
| Trip Switch defective (98V) | Replace switch |
| Switch Bar binds in slot in switch plate | Clean out slot. Make sure flat spring is centered. |
| Short length dispensed when blue button pressed | Defective relay. (98D model) |