Loma IQ2 User Manual page 152

• Carefully slide out the plastic hinge pins and remove the section of belt to be replaced.
• Carefully interlock the new section of the belt. Make sure the belt is located on the drive
sprocket and correctly engage with the other 'floating' sprockets.
• Carefully slide the plastic hinge rods through the interlocked sections of belt.
• If product guides were removed from the conveyor, refit them in position and tighten the
securing screws.
Setting the belt tension and tracking
If the belt slips or moves during normal operation, check the rollers are clean and free from
debris and greasy elements then follow the steps below.
Adjusting the hexagonal lock nuts on the studs of the four hanger bearings at the ends of the
conveyor facilitates belt tracking and tension adjustment for this type of conveyor. Do not
over-tension the belt as this may cause premature wear to the bearings.
• Main belt tensioning is controlled by the hanger bearings at the drive end of the conveyor.
This is factory set and must not be adjusted on site.
• Tracking and minor tension adjustment is controlled by the hanger bearings at the idle end
of the conveyor. Increasing the tension on the right-hand side of the belt will cause the belt
to move to the left. A decrease in tension on the right will cause the belt to move to the
left. Adjust until the belt track is central.
Adjusting the drive chain tension
The conveyor belt drive chain is tensioned by undoing the four bolts holding the motor and
moving the motor until the correct tension of 5mm maximum free play at the central point
between the pulleys is achieved.
Adjusting the reject mechanisms
Pusher and retracting band rejects
At the reject solenoid valve, adjust the two throttle screws, in conjunction with the reject
delay and dwell times, until the required reject timing and speed of operation are obtained.
Both the reject timing and the speed of operation are affected by the air pressure supplied to
the conveyor.
Air blast reject
Since this type of reject has no throttles, the only variables that can be adjusted are the reject
delay and dwell times. There is no air regulator supplied with the air blast reject. However,
the air supply pressure should be approximately 100psi (6.9 bar).
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Maintenance