I. Purpose & Scope

To safely and effectively provide instruction on the inspection and proper use of arrow boards.

II. Definitions

Standard PPE – High Viz Garment, Hard Hat, Z-87.1 Safety Glasses, Gloves, Pants, Work Boots

III. Process

NOTE: Work instruction does not supplement the manual. For specific instructions for the exact model please refer to the owner’s manual.

A. Potential Hazards

• Electric Hazard
• Crush Hazard
• Fall Hazard
• Fire and Explosion Hazard
• Entanglement/Sever Hazard

B. PPE

• Standard PPE

C. Inspection

1. Check the trailer coupler operation and for corrosion or damage, replace as needed.
2. Inspect the trailer frame for rust, nicks and chips. Use the proper touch-up paint to touch up nicks or scratches.
3. Inspect the axle, springs and undercarriage for wear and damage. Replace as needed.
4. Inspect the outriggers, jack and locking mechanisms for proper operation, wear and damage. Replace as needed.
5. Inspect the safety chains for wear and corrosion damage. Replace as needed.
6. Check tires for cracks, cuts or damage. Replace damaged tires before towing.
7. Check air pressure of the trailer tires when cold.
8. Check wheel rims for cracks or damage. Replace damaged rims.
9. Make sure all lug nuts are in place. Never tow the trailer with missing or improperly tightened lug nuts.
10. Check that lug nuts are tightened properly. Correct torque for lug nuts is 90lb-ft.
    • When torqueing lug nuts, always use a crisscross pattern.
11. Inspect and clean the cable, linkages, etc. so they operate properly.

D. Use

Setting the Outriggers

1. Make sure the work site is suitable for the arrow board trailer.
2. Position the arrow board trailer to face oncoming traffic.
3. Disconnect the arrow board trailer form the tow vehicle.
4. Leve the arrow board trailer using the tongue jack:
   • Turn the jack handle clockwise to raise the front of the trailer.
   • Turn the jack handle counterclockwise to lower the front of the trailer.
5. Lower the front of the trailer using the tongue jack.
6. Set the rear outriggers by unlocking and removing the locking pin securing each outrigger to the trailer frame. Slide the outrigger down until the top of the outrigger is flush with the top of the outrigger bracket on the frame. Secure with the locking pin.
7. Raise the front of the trailer using the tongue jack.
8. Set the front outriggers.
9. Fully raise the tongue jack. The trailer should now rest solely on the outriggers, with the tires raised off the ground approximately 3 inches.

Raising and Lowering the Sign Board

1. To raise the sign board remove the locking pins securing the sign board in the transport position.
2. Turn the winch handle clockwise until the sign board is in the operating position.
3. Secure the sign board in the operating position with the locking pins removed.
4. To lower the sign board remove the locking pins securing the sign board in the operating position.
5. Turn the winch handle counterclockwise 2 rotations to begin lowering the sign board.
   • If the sign board does not lower, turn the winch handle clockwise 2 rotations, or until the cable is tight.
   • Secure the sign board with locking pins in the operating (vertical) position.
   • Raise the front of the trailer with the tongue jack by turning the handle clockwise 3 rotations. Raise the outriggers if necessary.
   • Repeat steps until the sign lowers.
6. When the sign board starts lowering continue turning the winch handle counterclockwise until the sign board is fully lowered in the transport (horizontal) position. Do not overturn the winch handle.
7. Secure the sign board in the transport (horizontal) position with the locking pin.

Operating the Sign Board

1. The weather proof controller, located in the bottom right edge of the sign board features two sealed touch buttons that allow the operator to “scroll” forward and backward through the operating modes, and an indicator panel to show the operator what mode has been selected.

E. Maintenance

1. Clean the trailer and remove all dust, dirt or other foreign material.
2. Clean the sign board and lamp assemblies with a damp cloth or sponge.

IV. Reference Documents

Allmand Arrow Board Manual