Maintenance (Continued)
WARNING – Turn off electrical power supply and disconnect power cord from electrical supply before beginning maintenance. If power cord is not disconnected, severe injury to
personnel could result.
Circuit Breaker
The case sealer is equipped with a circuit breaker which trips if the motor is overloaded. The circuit breaker is located inside the electrical control box on the side of machine frame just below the machine bed.
WARNING – The following procedure must be performed by trained service
personnel because of the high voltage electrical hazard within the control box.
If circuit is overloaded and circuit breaker trips, unplug machine from electrical power:
1.Determine cause of overload and correct.
2.Remove electrical enclosure cover.
3.Lift circuit breaker switch to reset. If circuit breaker will not reset, wait 2 minutes and retry.
4.Replace cover.
5.Plug in machine.
6.Press machine "On" button to resume case sealing.
Knife Replacement, Taping Head
See Section II, "Maintenance – Knife
Replacement", page 9.
Box Drive Belt Replacement
Figure
Note – 3M recommends the replacement of drive belts in pairs, especially if belts are unevenly worn.
To remove old belt:
1.Remove and retain center plate (A) and four screws.
2.Remove and retain side cover (B) and fasteners.
3.Loosen, but do not remove lock nut (C).
Figure 4-2 – Box Drive Belt Replacement
4.Loosen tension screw (D) until all belt tension is removed.
5.Pull belt splicing pin (E) out and remove belt.
6.Place new belt over pulleys with laced splice at top. Insert splicing pin. Note - Pin must not extend beyond edge of belt.
7.Adjust belt tension as explained in "Adjustments - Box Drive Belt Tension", Page 19.
8.Replace side cover and center plate and secure with original fasteners.
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