23
Maintenance (Continued)
Knife Replacement, Taping Head
See Section II, "Maintenance—Blade (Knife)
Replacement."
•To reduce the risk associated with mechanical and electrical hazards:
−Turn electrical and air supply off and disconnect before performing any adjustments, maintenance, or
servicing the machine or taping heads
WARNING
Circuit Breaker
The case sealer is equipped with a circuit breaker
which trips if the motors are overloaded. Located
inside the electrical enclosure on the side of the
machine frame. The circuit breaker has been preset
at the factory to 4.5 amps and requires no further
maintenance.
If circuit is overloaded and circuit breaker trips:
1. Determine cause of overload and correct.
2. Rotate the switch mechanism to the "O" (Off)
position then to "I" (On). If circuit breaker will
not reset, wait 2 minutes and retry.
DRIVE PULLEY RINGS
Before installing a new belt, check the orange plastic
drive pulley rings for wear. If torn, broken, or worn
smooth, replace the rings.
Figure 4-1—Drive Pulley Rings
Box Drive Belt Replacement
3M recommends replacing drive belts in pairs,
especially if belts are unevenly worn.