BELT TRACKING
MD8 INTERCHANGE EQUIPMENT, INC.
1.
If your MD8 is equipped with the "Belt Sensor" tracking system, supply the system
with 70-80 psi of compressed air. Belt tracking is very important, and all tracking
sys
tems must be monitored especially during the break-in period.
2. Check that the tracking arm is centered between the two jacking bolts. Bolts should
only be hand tight (see Figure c).
3. Center Belt on infeed and exit roll. Adjust belt proximity switch to read edge of belt,
then move back ¼".
4. Remove slack from belt using adjustment bolts until belt has a uniform tension.
(Too much tension can cause belt failure, do not over tighten.)
5. Turn conveyor switch to on position. Turn speed to a minimum. Belt sensor switch
must not be reading the belt. When the switch does not read the belt, the tracking
cylinder is extended causing the belt to walk towards the belt sensor switch. The belt
should always walk towards the switch.
6. Slowly increase speed to determine which way the belt is walking. If belt is walking
away from proximity switch, loosen jacking bolt A; this will further extend the tracking
cylinder causing the belt to walk towards the proximity switch.
7. When the switch reads edge of belt for a constant 2 seconds, the cylinder will retract
which will cause the belt to walk away from the switch. If this does not happen,
loosen jacking bolt B; this will allow the cylinder to further retract.
8. Adjust the position of the switch (by rotating rod in or out) to control how the belt
centers on the main rollers.
9. When adjusted correctly, belt movement is very slow and steady. If belt moves left
and right too rapidly, adjust jacking bolts A&B to slow movement down.
Belt Tracking
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