MAINTENANCE SCHEDULE for
VERTROD HEAT SEALERS

Introduction

Maintenance for your Vertrod heat sealer is generally limited to the replacement of worn parts on the working jaws: the heater bar, pressure bar.

Occasionally, the pneumatic system or electronic controls: the plug-in timers and microswitches will require adjustment or replacement. Failure mode of these components is always revealed through persistent patterns of machine malfunction and easy for operators to spot.

Replacement of worn parts for the working jaws and adjustment procedures for microswitches are discussed in the service manual. A step by step maintenance procedure is provided along with a spare parts list for the essential parts of the working jaws. Spare parts kits are also provided and will typically support a machine for one year when used under normal/ routine operating conditions.

Daily:
1) Check the settings of the control dials for heat & dwell. Be sure these settings have not been changed from the settings established to properly seal your material.

2) Check the condition of the Teflon covers on the heater bar and pressure bar. There should be no visible appearance of burning (dark brown areas) over either surface.

When burning or tearing do occur change these parts as instructed in the service manual. Check all additional parts on the working jaws for possible damage.
Replace any additional worn parts as needed.


Weekly:
1) Check the settings of the control dials as outlined in the daily procedure. Make adjustments as needed.

2) Check the condition of the working jaws as outlined in the daily procedure. Replace any worn parts as needed.

Monthly:
1) Change the top Teflon cover on the heater bar.

2) Check condition of the bottom Teflon under the heating element. If it is worn (thread- bear) or burnt, change.
Do not operate the machine with a worn or burnt Teflons.

Life Cycle of Essential Wearable Parts
on the Working Jaws

The principal working jaws are the heater bar and pressure bar. Whenever there is damage to one of these working jaw components, always check the condition of the other. Wearable parts will continue to fail if the primary cause of the failure is not identified and corrected. This condition can occur when simply not replacing all the damaged parts on both working jaws when necessary. Other reasons for frequent breakdown of wearable parts are the failure of control components in the Impulse Generator, the actuator microswitches mounted on the frame of the machine, misalignment of the working jaws, loose machine fasteners and on rare occasions the pneumatic system.

Under normal/routine working conditions, the wearable parts should give good service for many months. The following list describes the average life cycle associated for each of the essential wearable parts.


1) Top Teflon cover on Heater Bar- Should last for 4 to 6 weeks, the most frequently replaced part due to direct contact with both heating element and sealing material.

2) Bottom Teflon under the Heating Element - Should last for 6 to 12 weeks, wears out due to the effects of residual heat from direct contact with the heating element.

3) Heating Element - Should last for 12 to 24 weeks, or longer. It can fail from the effects of misalignment of the working jaws, improper setting of the heat control dial and incorrect installation.

4) Pressure Bar Teflon cover - Should last 6 to 8 weeks, the second most frequently replaced part due to direct contact with sealing material and effects of residual heat.

5) Silicone Rubber - Should last for a minimum of 12 months. It can fail from the effects of misalignment of the working jaws and when a heating element burns out during a sealing cycle.

To contact us:
Phone: (925) 932-3653
Toll Free (866) 526-8474
Fax: (925) 940-9631

E-mail:
info@impulsedynamics.com

1630 North Main Street 323
Walnut Creek, CA 94596

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