8.1 Chip Conveyor - Overview

Chip Conveyor - Overview

Service Minute - Chip Conveyor Tension

Chip Conveyor Troubleshooting - Haas Service Tip

Toolroom Lathe Conveyor Installation

8.2 ST Series - Chip Conveyor - Installation

Chip Conveyor - Field Installation - ST Series - NGC

AD0435

Document Applies to these Parts

Machine Chip Conveyor Kit
ST-10/10V/10Y/10YV/ 15/15Y
 93-3857
ST-20/20V/20Y/20YV/ 25/25Y
 93-3858
ST-20/20V/20Y/20YV/15/15Y [2018]
 93-3859
ST-30/30Y/30YEU/35/35Y
 93-3860
ST-40/45
 93-3861
ST-40L/45L/50/55
 93-3862

Chip Conveyor - Field Installation - Introduction

  1. Conveyor Trough Cover
  2. Drip Tray
  3. Safety Skirt

Chip Conveyor - Field Installation

1

Download the Conveyor patch file from the Haas Service Portal and install it on the machine.  Refer to: Patch File Load Uninstall - NGC.

2

If the machine has a chip tray (ST-10/15) remove it.

3

Attach the trough cover [1] to the CHIP CONVEYOR.

For a Jorgensen conveyor, install the (8) hex head screws and washers to attach the trough cover and lock the conveyor in the operating position as shown.

For a Hennig conveyor, install the (4) hex head screws and washers to attach the trough cover and lock the conveyor in the operating position.

4

 Caution: The conveyor is heavy.

Put a piece of "1" bar stock [1] into the holes in the lifting tabs. Lift the CHIP CONVEYOR [A] with a lift strap on the bar stock and a forklift (not shown).

Raise the conveyor until it is level with lathe chip conveyor pocket.

 Note: For ST-40/45/40L/45L/50/55 machines with a 95 Gallon Coolant Tank procede to the next step.

Push on the bar stock to move the conveyor into the machine. This may take (2) or more people.

5

 Note: This step applies to ST-40/45/40L/45L/50/55 machines with a 95 Gallon Coolant Tank.

  • Lower the conveyor legs.
  • Push the conveyor in until the conveyor legs almost touches the coolant tank.
  • Remove the legs from the conveyor.
  • Push the conveyor the rest of the way in.
  • To prevent a coolant leak install the bolts back into the tapped holes.

6

 Note: This step applies to ST-10, ST-20, and ST-30 lathes only.

For a Hennig conveyor, install the (4) 1/4-20 X 1/2" button head cap screws (BHCS) to lock the conveyor in the operating position as shown.

For a Jorgensen conveyor, install the (2) 1/4-20 X 1/2" BHCS to lock the conveyor in the operating position.

7

 Note: This step applies to ST-10, ST-20, and ST-30 lathes only.

Install the trough cover [1] to the chip conveyor.

 Note: This step applies to both Hennig and Jorgensen conveyors.

Push the chip conveyor into the lathe.

Chip Conveyor - Drip Tray - Field Installation

This procedure tells you how to install the chip conveyor drip tray. The chip conveyor drip tray for ST-10, ST-20, and ST-30 is packaged inside the lathe. The ST-40 drip tray is already installed.

1

Lift the chip conveyor.

Slide the drip tray under the chip conveyor to the approximate position shown in the figure.

 Note: No fasteners are needed to keep the tray in place.

For ST-40/40L models, unfold and lock the leg before operation. The leg height needs to be adjusted so that the casters touch the floor after the machine is leveled.

Chip Conveyor - Belt Tension

1

Open the cover at the head of the conveyor. Look at the belt tension as the belt goes around the sprocket.

Tighten the belt tensioning screws at either side of the conveyor head to adjust the belt drive shaft and remove slack from the belt.

 Note: Adjust the screws equally to keep the drive shaft perpendicular to belt travel.

While you adjust the belt tensioning screws, push up on the belt with a wrench at the head of the conveyor. Measure the belt slack [1] at the center of the belt in the lift section of the conveyor. The correct belt slack for Jorgensen conveyors is 0.25" - 0.38" (6 - 10 mm). The correct belt slack for Hennig conveyors is 0.12" - 0.25" (3 - 6 mm). Repeat step 2 as needed.

Apply the jam nut on each tensioning screw to lock it in place.

Install the access cover.

Chip Conveyor - Safety Skirt - Installation

1

Attach the skirt [1] to the bracket [2].

Note: The seam [3] in the skirt faces the conveyor as shown.

Mount the bracket to the conveyor.

2

Connect the chip conveyor to power.

8.3 TL-1/2 Chip Conveyor - Installation

TL-1/2 Chip Conveyor - Installation

AD0491

Applies to NGC machines built from: January, 2017

TL-1/2 Chip Conveyor Installation Video

Introduction

1

Field Install Kits
 
  • TL-1    93-1000484
  • TL-2    93-1000483

If the chip conveyor is a field install follow the Field Install section below.

If the machine is a new install with a chip conveyor follow the Machine Install section below.

Field Install

1

Route the chip conveyor cable from I/O P24, out the bottom of the controller and along the coolant pump cable.

Route the chip conveyor power cable from P10 on the PSUP PCB to P25 on the I/O board.

2

Install the lower bracket hardware.

Lower the chip conveyor legs and reinstall the hardware.

3

Place the chip conveyor wings on the chip conveyor belt and install the chip conveyor into the base.

Reinstall the chip conveyor wings to the chip conveyor and adjust until there is no gap between the casting and wings.

Adjust the chip conveyor legs until the chip conveyor sits flat in the base casting.

4

Open the cover at the head of the conveyor. Look at the belt tension as the belt goes around the sprocket.

Loosen the motor mount hardware and tighten the belt tensioning screws at either side of the conveyor head to adjust the belt drive shaft and remove slack from the belt.

Note: Adjust the screws equally to keep the drive shaft perpendicular to belt travel.

While you adjust the belt tensioning screws, push up on the belt with a wrench at the head of the conveyor. Measure the belt slack [1] at the center of the belt in the lift section of the conveyor. The correct belt slack for Jorgensen conveyors is 0.25" - 0.38" (6 - 10 mm). The correct belt slack for Hennig conveyors is 0.12" - 0.25" (3 - 6 mm). Repeat step 2 as needed.

Apply the jam nut on each tensioning screw to lock it in place.

Tighten the motor mount hardware.

Install the access cover.

5

Install the chip conveyor skirt[1] to the bracket[2] and install to the chip conveyor.

Note: The seam [3] in the skirt faces the conveyor as shown.

6

Install the new coolant tank chip tray.

Plug in the chip conveyor to the plug on the controller support.

Machine Install

1

Remove the chip conveyor shipping bracket and install the tailstock stop hardware that is found inside the machine.

Install the lower bracket hardware.

Lower the chip conveyor leg to the extended position.

2

Pull the chip conveyor out of the base and place the chip conveyor wings on the chip conveyor belt.

Install the chip conveyor all the way into the base casting and reinstall the chip conveyor wings to the chip conveyor and adjust until there is no gap between the casting and wings.

Adjust the chip conveyor legs until the chip conveyor sits flat in the base casting.

3

Open the cover at the head of the conveyor. Look at the belt tension as the belt goes around the sprocket.

Loosen the motor mount hardware and tighten the belt tensioning screws at either side of the conveyor head to adjust the belt drive shaft and remove slack from the belt.

Note: Adjust the screws equally to keep the drive shaft perpendicular to belt travel.

While you adjust the belt tensioning screws, push up on the belt with a wrench at the head of the conveyor. Measure the belt slack [1] at the center of the belt in the lift section of the conveyor. The correct belt slack for Jorgensen conveyors is 0.25" - 0.38" (6 - 10 mm). The correct belt slack for Hennig conveyors is 0.12" - 0.25" (3 - 6 mm). Repeat step 2 as needed.

Apply the jam nut on each tensioning screw to lock it in place.

Tighten the motor mount hardware.

Install the access cover.

4

Install the chip conveyor skirt[1] to the bracket[2] and install to the chip conveyor.

Note: The seam [3] in the skirt faces the conveyor as shown.

Install the new coolant tank chip tray.

Plug in the chip conveyor to the plug on the controller support.

5

Install the new coolant tank chip tray.

Plug in the chip conveyor to the plug on the controller support.

Chip Conveyor Activation

Turn on the machine.

Login to the HAAS SERVICE PORTAL.

Download the Chip Conveyor option configuration patch files.

Note: The option files will appear on the configuration download page after the Chip Conveyor Kit has been ordered.  If the option does not appear contact the service department.

Load the option configuration patch file to the control.  Refer to the NEXT GENERATION CONTROL - CONFIGURATION FILE - DOWNLOAD/LOAD procedure.

Test the Chip Conveyor

1

Test the chip conveyor by pressing the [CHIP FWD],  [CHIP STOP], and [CHIP REV] buttons on the control pendant.

8.4 Chip Conveyor - Motor Replacement

Chip Conveyor - Motor - Replacement

AD0345

Applies to machines built from: July, 1998

Introduction

This procedure tells you how to install and wire a replacement motor for a conveyor. When you receive the replacement motor, the cable for the motor will have one of these circumstances:

  • The cable may match your existing electrical cable. In this circumstance, no modification is necessary.
  • The cable may not match your existing electrical cable. In this circumstance, you have (2) options:
    • You can bypass the extension cable on the machine and connect the new motor cable directly to the I/O PCB.
    • You can take the cable off of the old motor and install it onto the new one. This procedure shows you how to make that modification.

Use P/N 93-1224B for vertical mills and lathes. Use P/N 93-2381 for horizontal mills.

Motor Replacement

1

Remove the cable clamps [1].

Remove the used motor.

Press the CHIPC MOTOR 1/8HP 235V 50/60HZ [A] onto the conveyor shaft. Align the slot in the motor shaft with the key [2] on the conveyor shaft.

Attach the motor to the conveyor head.

Install the cable clamps [1].

Connect the electrical cable.

2

Do this step if you must modify the cable that came with the motor.

Cable Wire Connect to:  
Blue Capacitor/motor black  
Red Capacitor/motor brown  
Black Motor gray  
Green Ground  
Yellow Cap off - no connection  
Orange Cap off - no connection  
White Cap off - no connection  

Power on the machine.

Push [CHIP FWD].

If the motor is wired correctly, the chip conveyor moves forward.

Push [CHIP REV].

If the motor is wired correctly, the chip conveyor moves backward.

8.5 Chip Conveyor System - Troubleshooting

Conveyor System - Troubleshooting Guide

Introduction

  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

Symptom Possible Cause Corrective Action
The conveyor does not start. The circuit breaker is tripped. Check for a short in the motor or the cable.
No power from I/O PCB to the motor. Verify voltage at I/O PCB and the motor.
Blown fuses (I/O-version R and earlier). Check the fuses on the I/O PCB.
The conveyor motor capacitor is defective. Inspect motor capacitor for damage.
Conveyor is noisy or oscillates between forward and reverse. There is a build up of chips. Clear excessive chips and any obstructions.
The conveyor belt is damaged. Inspect conveyor belt and repair or replace.
The conveyor belt tension is incorrect. Adjust the belt tension.
The auger is noisy or oscillates between forward and reverse. Then Alarm 9906  CHIP CONVEYOR MALFUNCTION is generated. There is an excessive chip build-up or an obstruction. Clear all chips and obstructions from the auger trough and chip chute.

There is no chip build-up or obstruction and machine generates

Alarm 9906 CHIP CONVEYOR MALFUNCTION 

 The auger motor is bound up. The machine is decteting an overcurrent condition.  Check the discrete input CHIP_CONVEYOR_OVERCURRENT cycles from 0 - 1  or 1 - 0 (0 means overlaod condtiion.  Check the motor for burnout or binding.  

Chip Auger, Conveyor, may start without operator action, even with doors open.

 Machine has software 100.17.000.1016 Update software to 100.17.000.2030 or greater. This problem has been corrected such that the conveyor never restarts automatically. With a Classic Haas Control, the operator can restart the conveyor with the door open. NGC machines that have been updated after October 10th, 2018 will have strict door rules that makes this impossible. 

M31 is restarting conveyor timers if the conveyor is already on.

 Machine has software prior to 100.17.000.2030 and the conveyor cycle keeps restarting every time a M31 is encountered.

Update software to 100.17.000.2030 or greater. In the new software if a conveyor cycle is already running but in the off state, a M31 will NOT restart the conveyor. The conveyor will follow the cycle it is currently in.
Alarm 9819 CHIP CONVEYOR SHORT CIRCUIT The auger motor start capacitor is at fault. Inspect the auger motor start capacitor for damage.
Alarm 9848 CHIP CONVEYOR MOTOR DISCONNECTED There is no power from the I/O PCB to the motor. Verify the voltage at the I/O PCB and at the motor.
CDF Conveyor runs backwards when commanded to run forward Motor wiring is incorrect. Verify the motor wiring, use the wiring diagrams in the CDF Motor Wiring Section for reference. 

Motor Cable Inspection

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.

Voltage

Corrective Action:

Find the chip conveyor motor cable 140 at the I/O PCB. Press [CHIP FWD]. Use a multimeter with needle tip probes to measure the voltage between the black and red wires on the cable.

Have someone press and hold [CHIP REV]. Measure the voltage between the black and white wires. When the I/O PCB operates correctly, each voltage reading is 240 VAC.

If the voltage at the I/O PCB is correct, open the conveyor motor junction box. Use a multimeter with needle tip probes to check for voltage on the power leads at the motor.

If there is no voltage, check the motor and the cable. If there is voltage, check the capacitor. If you verify the voltage and capacitor are correct, inspect the motor drive shaft and keyway.

Fuses

Corrective Action:

Check these fuses at the bottom right corner of the I/O PCB (Fuse type: AGC 5 amp):

  • Single phase motors: FU2 [1] /FU3 [2]. There should be no fuse in FU4 [3].
  • 3 phase motors: FU2 [1] /FU3 [2] /FU4 [3]

A short in the motor or the cable could have blown the fuse

Capacitor

Corrective Action:

Inspect the conveyor motor capacitor for damage. A damaged capacitor will usually have signs of deformation or bubbling on the capacitor casing. This could be caused by a short in the motor or in the cable.

Open the motor junction box. Check the capacitor. Look for burn marks on the case.

Measure the capacitor. Most multimeters can measure capacitance upon manual activation (turn to the correct units of measurement, and push the yellow button). It should be 6 or 9 microfarad as noted on the capacitor's case.

Chips

Corrective Action:

Clear chips and obstructions. Make sure the conveyor settings are optimized for the chips that are produced.

Belt Inspection

Corrective Action:

Inspect the conveyor belt for damage.

Belt Tension

Corrective Action:

Make sure the belt tension is correct. Refer to the decals on the side of the machine. The correct belt slack for Jorgensen conveyors is 0.25" - 0.38" (6 - 10 mm). The correct belt slack for Hennig conveyors is 0.12" - 0.25" (3 - 6 mm). 

CDF Motor Wiring

Run the conveyor by pressing [CHIP FWD] if the conveyor runs backwards please check the motor wiring and verify it is wired correctly. Use the wiring diagrams below for reference. 

Electrical Diagram

Hennig CDF Conveyor Diagram

8.6 UMC Conveyor Spillway Extension - Installation

UMC Conveyor Spillway Extension - Installation

AD0565

Introduction

1

This procedure will explain how to install the chip conveyor spillway extension kits for the UMC Series Machines.

The kits come with three major components to help reduce chip overflow and reduce chip build up that can cause coolant blockage around the conveyor. The components are as follows:

  1. The Spillway
  2. The Mating Bracket
  3. The Wing Exensions

This procedure will aplly to the following kits:

  • 93-3326 CHIP CONVEYOR KIT KEYARROW UMC 500
  • 93-3327 CHIP CONVEYOR KIT JORGENSON UMC-500
  • 93-3328 CHIP CONVEYOR KIT HENNIG UMC 500
  • 93-3409 CONV CHIP MANAGEMENT KIT UMC 750/1000

NOTE: For UMC-500's built before November 2019 the provided mating bracket [2] may interfere with the sheet metal. The original mating bracket [2] can be used in place of the new one.

 NOTE: For UMC-750/1000's built from October 2017 to February 2020 the spillway [1] may interfere with the enclosure. The original spillway [1] can be used in place of the new one.

NOTE: The kit needed for the UMC-500 will depend on which conveyor brand is on the machine. For the UMC-750/1000 93-3409 will work for all brand conveyors. 

Installation

1

Remove the bolts attaching the conveyor to the enclosure [1].

2

Pull out the conveyor far enough so that the spillway can be removed and the mating bracket is exposed. 

3

Remove the spillway from the conveyor, it should start falling out when the conveyor is pulled out. Replace it with the spillway supplied in the kit [1].

4

With the wing exposed remove the 4 bolts holding the mating bracket to the conveyor. Replace it with the mating bracket supplied in the kit [1].

NOTE: The UMC-1000 does not use a mating bracket, this portion of the procedure only applies to the UMC-500/7500.

5

The mating bracket for the UMC-500 will differ depending on which brand of conveyor is on the machine. Make sure the proper mating bracket is being installed according to the image:

  1. Keyarrow
  2. Jorgenson
  3. Hennig

NOTE: Machines that were made before 11/2019 may contain an older sheet metal that may interfere, if the sheet metal interferes contact Haas Service for further instructions. 

NOTE: 93-3409, CONV CHIP MANAGEMENT KIT UMC 750/1000, will have a mating bracket that fits all brands of conveyors for the UMC-750. 

6

Once the spillway and mating bracket have been replaced push the conveyor back inside the machine.

Do not bolt the brackets to the enclosure yet. 

7

With the conveyor in the machine have someone push on the conveyor to create a gap between the conveyor and the casting.

Insert wing brackets [1] between the top of the conveyor and the casting. make sure the shoulder of the mating bracket is against the wing brackets.  

With the brackets in place install self tapping screws at the TOP of the slots in the brackets. This will allow you to bring the brackets upward to meet the casting if necessary. 

NOTE: Make sure the bracket is wedged between the casting and conveyor to create a seal so chips do not leak through the gaps.

8

Reinstall the bolts attaching the conveyor to the enclosure [1].

8.7 Henning CDF Conveyor - Installation

Hennig CDF Conveyor - Installation

AD0551

Introduction

1

This procedure will explain how to install the Hennig CDF Conveyor option found on the following machines:

  • UMC-500
  • UMC-750
  • UMC-1000
  • UMC-1250
  • UMC-1500-DUO
  • EC-400
  • EC-500

This procedure applies to the following kits:

  • 93-1000661: CHIP CONV UMC-500 CDF FIELD INSTALL
  • 93-1000655: CHIP CONV UMC-750 CDF FIELD INSTALL
  • 93-1000656: CHIP CONV UMC-1000 CDF FIELD INSTALL
  • 93-1000657: CHIP CONV UMC-1250 CDF FIELD INSTALL
  • 93-1000658: CHIP CONV UMC-1500 DUO CDF FIELD INSTALL
  • 93-1000659: CHIP CONV EC-400 CDF FIELD INSTALL
  • 93-1000660: CHIP CONV EC-500 CDF FIELD INSTALL

Prerequisites:

  • 93-1000573 I/O DOOR ASSY HINGED order the hinge door if it did not come in the kit.
  • EC-400 & EC 500 built BEFORE 2018 are NOT compatible with the CDF conveyors 

UMC - Installation

1

Place the conveyor in position, using a big joe or a forklift attach straps to the lifting hooks [1] and support the other end of the conveyor [2] to begin sliding the conveyor into the casting. 

2

Remove the gaskets [1] from the each side of the conveyor. This will make installing the conveyor easier and to avoid damaging the gasket. 

3

Loosen the hex head bolts [1] that hold the casters in place. 

Loosen them enough so that the rollers touch the floor but can freely move up and down. 

4

Begin to insert the conveyor into the machine, at the halfway point bolt the conveyor bracket [1] before completely sliding the conveyor in.

 NOTE: Some conveyors either do not have these brackets or have them pre installed. Only attach if the bracket is not already screwed onto the conveyor.

5

Once the conveyor bracket is installed, install the spillway [1] to the conveyor and continue sliding it in. 

NOTE: The spillway does not bolt to the conveyor, it is wedged between the casting and conveyor.

 

6

With the conveyor pushed in bolt the conveyor brackets [1] to the enclosure using the provided hardware.

 NOTE: Some conveyors either do not have these brackets or have them pre installed. Only attach if the bracket is not already screwed onto the conveyor.

7

Bolt the spillway of the conveyor to the enclosure as shown.

8

With the conveyor still supported by the lifting apparatus tighten the hex head bolts [1]. Make sure the casters are touching the floor.

Remove the lifting apparatus after the bolts are tightened.

 

9

Re-install the gasket [1] after the conveyor is fully installed. 

10

Place the wash down pump into the coolant tank and connect the output of the pump to the valve on the conveyor. 

Once completed go to the Electrical Installation section of the procedure

EC - Installation

1

FOR FIELD INSTALL

Remove the old panel and intall the new enclosure panel that will allow the CDF conveyor to fit on the EC machines. 

2

FOR FIELD INSTALL

Install the spillway onto the machine, use the provided hardware in the hardware kit. 

3

Remove the service panel [1] and the left drain pan cover [2] to prepare for installing the conveyor. 

NOTE: Place the gasket for the service panel aside as you will need it later in the installation.

4

Place the conveyor in position, using a big joe or a forklift attach straps to the lifting hooks [1] and support the other end of the conveyor [2] to put the conveyor into the casting. 

NOTE: Remove the chip disk filter cover [3] to make placing the conveyor into position easier. 

5

Loosen the hex head bolts [1] that hold the casters in place. 

Loosen them enough so that the rollers touch the floor but can freely move up and down. 

6

Once the conveyor has been fully slid into the casting, reinstall the left drain pan cover [1] and the chip disk filter cover [2]. Lastly, reinstall the service panel [3] to the spillway. Make sure the gasket [4] is reinstalled as well to prevent leaks from occuring. 

 

7

With the conveyor still supported by the lifting apparatus tighten the hex head bolts [1]. Make sure the casters are touching the floor.

Remove the lifting apparatus after the bolts are tightened. 

8

Place the wash down pump [1] into the coolant tank and connect the output of the pump to the valve on the conveyor. 

Electrical Installation

1

Please install the hinge door and refer to the I/O PCB Hinged Door Installation procedure for further instructions.

2

Install the TMD card onto the hinge door located as shown in the picture using the spacers and the 1/4-20 screws [2].

3

FOR UMC MACHINES:

Route the conveyor drive cable [1] and pump motor cable [2] using the provided cable clamps [3].

Route the cables along the skirt of the machine and into the back of the UMC into the junction box below the control cabinet.

4

FOR EC MACHINES:

Route the conveyor drive cable [1] and pump motor cable [2] into the rear of the control cabinet. 

NOTE: Route the pump motor cable through the wire channel under the conveyor and spillway. 

5

Follow the wiring diagram to wire the cables. 

Connect 33-0987B from the transformer to the P4 on the TMD card.

NOTE: [1] There are some extensions provided for the transformer in case there is no more room to fit 33-0987B in the transformer.

Connect 33-0517 from P69 on the I/O board to P2 on the TMD card.

Connect 32-0971 from the junction box on the chip conveyor to P24 on the I/O board. 

Connect 32-0972 from the pump motor to P1 on the TMD card.

6

After completing the installation, run the conveyor by pressing [CHIP FWD] if the conveyor runs backwards please check the motor wiring and verify it is wired correctly. Use the wiring diagrams below for reference.  

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