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8) TROUBLESHOOTING
PROBLEM
REMEDY
Insufficient strap tension
Check the following: air pressure value (min.4.5 bar), if the filter / lubricator and/or the pneumatic
motor is damaged or dirty, the pneumatic circuit, tension button, connections, pipes, valve. -
Check if the clutch is loose.
The feed wheel slips and mills the strap
Check if the feed wheel and grippers are dirty or damaged. Adjust the gap between feed wheel
and grippers (around 0,2mm– 0.008”). Adjust the motor power—too much tension force.
Check if the strap qualities are right for the strapping tool and application
The strap is breaking during tension
Adjust the motor power—too much tension force. Check if the strap qualities are right for the
strapping tool and application. Check package for sharp edges.
The strap is sideways after tensioning; The seal isn’t in the middle of strap width
Adjust the motor power—too much tension force. Check if the strap qualities are right for the
strapping tool and application. Check strap size; Check the strap guides for alignment.
The lower strap isn’t locked between the grippers and feed wheel so the tool goes forward
during the tension
Adjust the gap between feed wheel and grippers (around 0,2mm– 0.008”). Check if the locking
strap plates are dirty or damaged. Adjust the motor power.
Strap locks against itself
Adjust the gap between feed wheel and grippers (around 0,2mm– 0.008”)- try to increase the gap.
Check if the strap qualities are right for the strapping tool and application.
Tool is leaking air
Check the gaskets and pipes, replace if necessary
The strap does not seal; the upper strap isn’t completely cut; the cutting is inconsistant
Improper weld time adjustment. Check if the sealing foot and the cutter are damaged or worn out.
Check if the sealing foot slides on strap. Check the air pressure value.
Check if the strap qualities are right for the strapping tool and application. Check if the sealing
motor is locked or dirty and, the pneumatic valve - try to clean the timer valve. The cutter spring
is damaged, try to replace it.
Strap is oversealed; the strap is breaking during the sealing – cutting
Improper weld time adjustment, may be too long.
During the sealing both straps are cut
Check if the gripper plate (under the sealing foot) is dirty or damaged (clean or replace it)
Check if the strap is over tensioned. Improper weld timing adjustment, may be too long
.
After the cycle is not possible to remove the tool from package
Check if there is too much tension. If it is not possible to remove the tool by hand, cut the strap
from package and disassemble the foot from the main frame to remove the strap.
The sealing time will not remain constant
Timer valve problem, try to clean, lubricate or replace it.
Содержание PHT401
Страница 15: ......
Страница 17: ...BOSCH 0 607 951 445 B900353 TENSION MOTOR ...
Страница 19: ...B200357 PNEUMATIC VALVE ...