Installations of Hydraulic Doors - Bifold and Hydraulic Doors of Texas

These illustrations are to be used as an overview guide. Fully detailed instruction manuals are shipped with
each hydraulic door with step-by-step instructions.

Bifold and Hydraulic Doors of Texas Hydraulic Installation Guide

Position the door near the building opening.
Schweiss Hydraulic Door frame shown in two pieces

Slide top half and bottom half

Line up the pre-drilled holes in the splice plates and the door members.

Install the (5/8" x 3 1/4") bolts through the splice plates and door members

Make sure the top half and bottom half of the door frame line up with each other and tighten the bolts

Bolting is now complete now verify the alignment of the door frame.

Assembling Schweiss one-piece hydraulic Door Frame during install

Top half of door frame

(6) Structure Bolts
5/8" x 3-1/4"

Position the door squarely in front of the rough opening on your building.

Hydraulic Doors Install - one-piece hydraulic Door Frame

Your hard pipe, fittings, mounting brackets, and hoses will be sent in sections and must be assembled.

Included is a plumbing schematic for your hard pipe lengths and placement

The following parts are needed. (Refer to page 8)

The hard pipe and fittings will have to be mounted to the inside of the building, just above the opening of the door as shown on the plumbing schematic. The T's will be placed in the center of the opening.

T Connection

90° Elbow

Restrictor / Dead End

Splice Connection

Single Tube Clamp

Twin Tube Clamp

Twin Hose Clamp

Hoses

Hard Pipe

Example of Plumbing schematic found in installation guide

Center of the Doorway/Opening

Splice Connection
When Needed

Twin Tube Clamp

Single Tube Clamp

Up/dn/stp
switch

Dead End

Rod End

Left Side

Right Side

Standing inside of the
building looking out.

Restrictor / Velocity Fuse
To Dead End

Twin
Hose
Clamp

A Hose/
Rod End

B Hose/
Dead End

Fitting A

Fitting B

A Tubes

B Tubes

Positioning of the Cylinders. Position the cylinders with the clevis end at the bottom of the door. Ports must face away from the door frame.

Start by pinning the top of each cylinder to the framework. Insert the clip pin in each hole on the cylinder pin.

Hydro Cylinders Install - one-piece hydraulic Door ram

Step 1

Step 2

Step 3

When do you hook up fittings and hoses?

Plumbing the hydraulic cylinders.

Starting on the cylinder farthest from the pump. Temporarily secure loose end to the door until final pump hook-up.

Temporarily secure all hoses in such a way that they will not be pinched or crushed during the install of the door into the rough opening.
If you have an outside mount door, cylinder hoses #'s 1,2,3 & 4 will not be able to be attached to the hard pipe until the door is secured into the rough opening.

Special Note: Building Sheeting

New Construction: Leave the building sheeting off around the door opening, until the door has been completely installed.

Existing Structure: Remove the building sheeting off around the doors opening, until the door has been completely installed.

Use the proper sized forklift to elevate your door into position.
The door will weigh roughly 5 lbs. per square foot plus any options added to the door.

Safety First:
Be sure that your forklift is rated to lift the full weight of the door.
Always carry the loads within the forklifts manufacturer recommended capacity.
Secure the door to the forklift with chains to make sure the door will not fall.

Keep the door secure to the forklift with chains until the door has been securely fastened to the building structure.

Lift and move the door forward into the opening until the doorframe is in the door opening.

Crane Lifting a Schweiss one-piece hydraulic Door into place

Outside of
Building

Lower the door onto the concrete floor, door jambs should be resting on the floor.
Do not lift the door header tight against the building header.

Maintain a 3" space between the finished floor and the bottom of your door frame.

Square both sides of the door and flush within the face of the building opening.

Maintain a 1-??" spacing between the door and the door jamb.

The door jamb footer should be sitting on the floor. Do not lift the door header tight against the building header.

Securing the top of the door.

Header must be level, then secure the attachment angles (Hinges) to the building structure.

Schweiss one-piece hydraulic Door mounted into place

Fasten the door jambs into the concrete by drilling and placing the anchors

Securing side jambs of the door

Secure the door jamb to the building - Use the Pre-drilled holes

Hydraulic door being fastend to the door jamb

Bolt leg through face
of side column

Building Side
Column

• Depending on your
building side column.
You man need longer
bolts than what are
supplied

Cylinder Leg

Bolt leg through side
of column

Base Plate

Use wedge
anchor bolts
to secure base
of leg to finished
floor.

Pump may be located in a storage room

Keep pump clear of the door opening

Floor Mount
Has its own pedestal, sets on its own - no fastening needed.

Wall Mount
Legs both will secure it to the wall

Fill the reservoir - with automatic transmission fluid or light weight hydraulic fluid

Install the hydraulic lines

Power can now be supplied to the pump.

There is a wiring schematic located on the pump.

Schweiss Hydraulic Door Pump Rough Dimensions

Right Side

Location of
Up/Down/Stop
Switch

3 ft.

6 ft.

Inside of
Building

Floor Mounted: Use wedge anchor
bolts to secure base to finished floor.

Check to make sure that there is fluid in the reservoir (we suggest the use of automatic transmission fluid or a light weight hydraulic fluid for optimal door operation).

Before hooking up the clevis end of the cylinder, turn the pump on and cycle the cylinders up and down several times to fill the lines with fluid.

More fluid may need to be added to fill the lines and cylinders.

Once the cylinders have been cycled several times, the clevis end of the cylinder can be pinned to the lower pinpoint of the door.

Do not forget to insert the other keys into the pins.

Also remember to bend the ends of the cotter keys over after they have been inserted into the pins.

NOTE: Use the pump to run cylinder ram up or down as needed to line up the clevis end of the cylinder to the pinpoint.

*After cycling the cylinders, the fluid level in the reservoir should be at 3/4 full while the cylinders are in the retracted position.

3 ft.

6 ft.

Bifold and Hydraulic Doors of Texas - Hydraulic door ram

Take time to check the door over. Make sure all installation welds are complete, bolts, through bolts and cotter keys are all in place.

It is time to cycle the door.

The door will operate, open and close by pressing the buttons on the 2 button control station. If you have a remote unit, the pump will power and cycle the door at the same time by depressing the buttons on either the receiver box or the handheld unit.

Schweiss Hydraulic door installation completed

Open the door far enough so that the top seal is away from the header.

Apply the self adhesive foam weatherstripping to the side and top seals of the door.

These instructions are to be used as an overview guide. Fully detailed instruction manuals are shipped with each door with step-by-step instructions.

Back To Top or Marker

Step 1- Preparing the door for installation

Step 2 -Assemble the door frame

Step 3- Positioning the door

Step 4- Hydraulic Fittings

Step 5- Mounting the 2 hydraulic cylinders

Step 6-Installing the door into your building opening

Step 7- Fastening the door to your building

Step 8-Fasten the door jambs

Step 9- Placing the pump

>Step 10 - Checking hydraulic fluids/ Cotter pins

Step 11- Check over the door

Step 12- Cycle the door

Step 13- Open the door

About this installation guide