Haas Conveyor System Troubleshooting Manual

Conveyor System - Troubleshooting Guide

Introduction

LAST UPDATED: 11/26/2018

Conveyor System - Troubleshooting Guide

1. Conveyor

2. Drive Motor

3. Power Cord

4. Conveyor Drive Shaft /Sprockets

5. Belt

6. Belt Tensioning Screws

Exploded View

1. CONVEYOR TROUGH COVER

2. GASKET

3. CONVEYOR TROUGH

4. DOUBLE CHAIN LINK OUTER

5. SINGLE CHAIN LINK OUTER

6. CHAIN SPACER

7. BELT PIN

8. CHAIN LINK INNER

9. BELT PLATE

10. CONVEYOR TUNNEL INSERT

11. CONVEYOR BRACKET

12. HHB 5/16-18 X 1

13. CONVEYOR RAMP COVER TOP

14. CONVEYOR RAMP COVER SIDE

15. CONVEYOR RAMP

16. CONVEYOR CHUTE

17. CONVEYOR TROUGH EXTENSION

18. BHCS 5/16-18 X 1 SS

Symptom Table

Page 1 of 5 pages

Conveyor System - Troubleshooting Guide

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION

The conveyor does not start.

Conveyor is noisy or oscillates between forward and
reverse.

Motor Cable Inspection

The circuit breaker is tripped.

No power from I/O PCB to the motor.

Blown fuses (I/O-version R and
earlier).

The conveyor motor capacitor is
defective.

There is a build up of chips.

The conveyor belt is damaged.

The conveyor belt tension is incorrect. Adjust the belt tension.

Check for a short in the motor or the
cable.

Verify voltage at I/O PCB and the
motor.

Check the fuses on the I/O PCB.

Inspect motor capacitor for damage.

Clear excessive chips and any
obstructions.

Inspect conveyor belt and repair or
replace.

Corrective Action:

Inspect the motor cable for any sign of damage.
Check for burn marks at the plug. This could be
caused by coolant contamination.

Measure the Ohms the across the motor power
cable leads [1] at the plug. There should be
resistance leg to leg. An open reading suggests a
bad motor or cable.

Measure the Ohms on the motor power cable from
each power leg to the ground leg [2] of the plug.
This reading should be open.

If cable shows a short leg to ground at the plug,
disconnect the power cable at the motor and check
each motor power lead to the motor chassis [3]. If
reading is open, the cable is at fault. If any lead
tests short, the motor is motor is shorted.

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