Hydraulic Door Installation

Single Panel Hydraulic Hangar Door System with Side Truss

Hydraulic Door Installation

Hydraulic doors are engineered and factory produced to the specifications provided. When installed properly, they will open and close with ease and protect what’s inside. When installing the door, it’s essential to follow the instructions and ensure every step is completed properly. If steps are skipped or overlooked, the bifold door could potentially not work correctly or at all.

Marine Hydraulic Hangar Door System Construction

Keys to Installation Success

  • Plan Ahead
    Ensure you have the proper tools, equipment and labor to get the job done properly. Download the installation manual and specifications, and make a plan before getting to work.
  • Inspect and Verify
    Make sure your door opening is ready to accept your new hydraulic door. It must be square and plumb to prevent popping and other noises.
  • Pre-Load
    If installing your hydraulic door on a pre-engineered building, it’s important to know that these buildings are intended to have a dead load deflection but often do not come from the manufacturer loaded to that limit. Add hoists to the building and door to effectively dead load weight from the hangar to the metal building. This pre-loading will prevent sag and ‘smiling’ of the door in the open position.

Hydraulic doors are simple and strategic in nature. Take your time when installing it. Think ahead, be safe, and know your limits as an installer.

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Pre-Loading Example

This example shows a bifold door, but it is very similar to a hydraulic door. Two chain falls are strapped to the door frame and rated for 3 tons each.

Adding a portion of the door weight to the center of the building allows the bottom rollers to lay parallel to the columns and the door to roll straight up and down the column when opening and closing.

Recommended Tools for Installing a Bifold Hangar Door
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Standard Hand Tools

Tin Snips
3/4″ Impact Socket
3 lb. Hammer
12-15″ Bessey/C- Clamps/Welder’s Vice Grips (two needed)
Needle Nose Pliers
Standard Pliers
Vice Grip
Crescent Wrench (at least 1 1/4″)
4′ Level
Regular and Phillips Screwdrivers
Grease Gun and Grease
Chalk Line

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Power Tools

Electric Impact Driver (corded)
Hammer Drill w/ 1/2″ masonry bit (concrete anchors only)
2″ Coring Bit (cane bolts only)
Cordless Drill (w/ 5/16″ and 7/16″ drives)
Electric Drill (corded w/bit asst. up to 9/16″)
4 1/2″ Grinder with Grinding Wheels, Cutoff Wheels, and a Wire Wheel
Extension cords

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Welding Supplies

Welder/Generator with at least 6600 Watts (220V/30 Amp)
1/8″ 7018 Welding Rods or
1/8″ 6011 Welding Rods
Slag Hammer

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2 people to help install
15-20′ Log Chain
Come-a-longs with straps
6000 lb. Telescoping Forklift (Doors weigh about 4.75 lbs. / sq. ft. You may need more than one lift for larger doors.)
All Terrain Scissor Lift
Telescopic Ladder
SAE 10 / ISO 32 Weight Hydraulic Oil
Red oxide primer (Spray Cans)

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Safety Equipment

Safety Glasses
Welding Mask
Hearing Protection
Work Gloves
Steel Toe Boots
Safety Harness

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