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Combo Trailer Usage

Document ID:
Department Owner:
Training
Effective Date:
07/15/2024
Revision:
0

I. Purpose & Scope

To safely and effectively provide instruction on the inspection and proper use of combo trailers.

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

  • Hydraulic Pressure Hazard
  • Moving Parts Hazard
  • Coiled Parts/Stored Energy Hazard
  • Fire or Explosion Hazard
  • Carbon Monoxide Hazard
  • Falling Objects Hazard

B. PPE

  • Standard PPE

C. Inspection

  1. Check the hydraulic fluid in reservoir and maintain at High level.
  2. Check electric brake breakaway switch battery for full charge.
  3. Check wires and connections to brakes for damage. Repair or replace as needed.
  4. Check the blue Auto Check ring is visible, if not add grease.
  5. Check the grease level in Trailer Buddy Axle.
  6. Check tire air pressure.

D. Use

Lock Machine

  1. Disconnect coil pipe from preparation machine.
  2. Install the yellow-colored transport locking pin to prohibit movement of pipe guide.
  3. Move seat to position inside trailer and lock into place.

Transporting

  1. Check the following before towing:
    • Electric brakes are operating properly.
    • Break away switch cable is safely attached to tow vehicle.
    • Coupler and safety chains are safely secured to hitch.
    • Trailer jack is in the raised position.
    • Check all fasteners for proper tightness.
    • Wheel lug nuts are properly tightened.
    • Wheel bearings are properly adjusted and maintained.
    • Load is within maximum load carrying capacity.
    • Tires are properly inflated.
    • All trailer lighting is working properly.
  2. Pin must be fully inserted into breakaway switch.

Threading

  1. Install pulling head in pipe.
  2. Raise threading rollers to the highest position and manually roll pip beneath #1 threading roller.
  3. Attach pulling strap to pulling head.
    NOTE: Use only soft straps or rope to avoid any sharp edges which can damage rollers.
  4. Lower threading roller #1 to align pip with the pipe guide.
  5. Pull pipe just past the first roller and stop.
  6. Raise threading roller #2 to align with second roller.
  7. Pull pipe just past he second roller and stop.
  8. Raise bottom roller to align pipe with the re-rounding rollers and pull pipe through.

Start Engine

  1. Turn the fuel valve to the On position.
  2. Move the control lever to the Choke position.
  3. Pull the start rope lightly until resistance is felt, then pull briskly.
    NOTE: Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter.
  4. When the engine warms up, move the control lever from the Choke position to the operating position.

Usage

  1. Select rerounder pressure control valve and set appropriate pressure value, based on pipe size and material. Refer to rerounder pressure chart.
  2. Select straightener pressure control valve and starting pulling pipe slowly while applying pressure to straightener system.
  3. Set appropriate pressure value, based on the pipe size and material. Refer to straightener pressure chart.
  4. Adjustments may have to be made to pressure settings for the straightener and rerounder systems to obtain the best results.
  5. If the pipe coil was mounted on a reel and the inside end tied off, continue the pull until the pipe has reached the end of the coil.
    NOTE: Do not stop the pull when the rope securing the end of the pipe is reached. Let the pulling load break the rope.

E. Maintenance

  1. Clean with soap and water as needed. When exposed to dust and mud in a field location, the machine should be washed at the end of each days work.
  2. Grease all moving parts (pipe roller fittings, sliding linkage of rerounder system, fittings for bearings and sleeves)

IV. Reference Documents

Trailer Manuals

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