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ガレージドアオープナー
Digidoor Paratrak
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A Unique Concept in Roll-up Door Automation

Top Chain Fixing

and Tensioner

Drive

Shaft

Left

Chain

Sprocket

Housing

Bearing Bracket

2 each side

Paratrak Unit

Chain Anchor

mounted to the door

right side

The Paratrak drives the door symmetrically by

means of chains and sprockets, applying the

force symmetrically to both ends of the bottom

rail, ensuring smooth and even operation.

Intended Use

The Paratrak is intended for the automation of the Digi Roll-up Door,

and may be adapted to other makes of roll-up doors by means of

Adapter Kits. Typically, a roll-up door weighs about 30 kg.

The width of a roll-up door may vary from 2,44 m to 3 m, and the height

from 2,135 m to 3 m.

Longer Drive Shafts and Chain Kits are available for wider and/or

higher doors.

If needed, (e.g. to avoid a tow-bar on a vehicle in a short garage) the

Paratrak may be mounted off-centre. This is possible, and the longer

Drive Shafts are required.

Paratrak Installation Instructions on Digi Roll-up Doors

Preparation

Prior to automating the roll-up door, inspect the door with a view to

ensuring satisfactory manual operation; it is a mistake to imagine that

automation will overcome the faults of a mal-functioning door.

The operator will interpret excessive resistance to door movement,

due to poor alignment, balance, snagging or excessive wear and

tear of working surfaces as an obstacle thereby preventing reliable

movement of the door. Eliminate all hindrances to free and smooth

door operation.

Check that the side-guides are free of grease, dirt and dents; and are

secure, vertical and straight.

Check that the triangular support brackets are secure and level. The

springs inside the door roll should have a light coating of grease.

The door should operate smoothly and easily using one hand, and

remain stationary when left at any point of travel. Adjust the spring

force if necessary (refer to the door installation instructions).

Remove or disable any unnecessary equipment or ﬁ ttings, not needed

for automated operation. If ﬁ tted, leave the centre lock un-locked.

WARNING!

Important Safety Instructions. Follow all instructions carefully, as

incorrect installation could lead to severe injury. It is important for the

safety of persons to follow all instructions. Save these instructions for

future reference.

• Do not allow children to play with door controls

• Automated doors should only be operated whilst in full view

• Take care when operating the manual release since an open door

may fall rapidly due to weak or broken springs, or mal-adjustment

• Frequently examine the installation for signs of wear or damage,

in particular, that tracks and mountings are secure, and that the

balance of the springs is correctly adjusted

• For use of the manual release, refer to the section Manual Operation

on page 11

• During maintenance or adjustment, disconnect the mains supply

• This appliance is not intended for use by persons (including

children) with reduced physical, sensory or mental capabilities, or

lack of experience and knowledge, unless they have been given

supervision or instruction concerning use of the appliance by a

person responsible for their safety.

Permanently ﬁ x labels warning against entrapment in a prominent

place or near any ﬁ xed controls.

After installation, ensure that the mechanism is properly adjusted and

reverses when closing upon an obstacle, 40mm high, placed on the

ﬂ oor.

The drive must not be used on a roll-up door incorporating a wicket

door (unless the roll-up door cannot be operated if the wicket door is

closed).

After installation, ensure that parts of the door do not extend over

public foot paths or roads.

Chain

Contents of the Package

The Paratrak Operator consists of a carton and a set of two shafts,

which may be chosen for standard or special door widths.

The carton contains:

• An Instruction pamphlet

• Grease Sachet

• The Paratrak Drive Unit

• Junction Box

• Battery Box assembly,

• Curly Cable

with a Controller and two

• Two lengths of roller-chain

12V Batteries

• eKey Remote

• Hardware Pack with nuts and bolts

• Battery cable with plug

• 24V Power Adapter

• Two Sprocket assemblies

• White Jumper wire

• Four Bearing Brackets

• 500 mm of twin-ﬂ ex

Recommended Tools and Equipment for this installation

• Electric Drill (with hammer action)

• Screwdriver

6 mm (Philips/Pozi)

• Drill Bits

Masonry: 5.5 mm, 8 mm

• Spanners

Steel: 3.5 mm, 4 mm, 6 mm, 7 mm

Sockets: 10 mm

Flat/Ring: 7 mm

• Tape Measure – 5 m

• Spirit Level

• Hammer

• Step Ladder – 1,7 to 2 m high

• Hacksaw

• Extension Lead to suit

• File

• Allen Key 3 mm

– INSTALLATION –

It is assumed that the proper condition and

balance of the door has been achieved.

Step 1

Inserting the chains into the Sprocket Covers, left and right

Insert the ﬁ rst link (the one without

the anchor pin) of one of the chain

bundles into the opening of the

shorter side of a Sprocket Cover

assembly. Push the chain through,

link-by-link, until it emerges at the

other side. Pull the chain about

halfway

through

the

assembly.

Repeat for the other chain bundle

and Sprocket Cover assembly. See

Figure 1

Figure 1.

Step 2

Fixing the Chain Anchor to the ﬂ oor, left and right

Starting on the left side, mark out the drilling dimensions as in Figure 2.

Using a Ø8 mm masonry bit, drill each hole as indicated to a depth of at

least 65 mm, and ﬁ t two Ø8 x63 Screw Plugs. Please refer to the following

tips. Note: the box has a drilling template for ease of use.

TIPS

1. Accuracy is important! Before drilling, extend the centre-lines well

beyond the hole-positions.

2. Start each hole with the drill set to normal (no hammer) and, while

focusing on accuracy, drill initially to a depth of about 5mm before

changing the drill to hammer.

3. To avoid snapping screws inserted in the ﬂ oor; after drilling each hole,

leave the mounds of dust. Insert the tips of the screw-plugs part-way

into the holes, and then brush away the mounds of dust. Drive the

plugs in ﬂ ush. Apply a lick of grease to the bolt threads before ﬁ tting.

Front

Wall

Doorway

Dimension 'B'

may vary from

18-22mm

Left Hand

Dimension 'A' may

Track

'A'

vary from 22-25mm

Figure 2 Left Side. Mirror for the Right side.

Figure 3

As in Figure 3, engage the pin at the end of the chain in the 'V' of the Chain

Anchor. Ensuring that the chain is between the wall and the sprocket in the

cover, place the Chain Anchor over the screw plugs and ﬁ t two Ø6 Coach

Bolts with Body Washers. At this stage, leave the bolts loose enough to

allow the Chain Anchor to move ('Float') freely. Repeat for the right side.

Step 3

Securing the Chain to the triangular support bracket

Again, starting on the left side, mark the drilling position on the upper

ﬂ ange of the triangular support bracket as in Figure 4. Centre-punch and

drill a Ø4.5 mm hole.

Doorway

Roll-up Door

Front

Ø4.5

Triangular

Wall

Top View

Bracket

Figure 4

Figure 5

Refer to Figure 5. Near the top end of the chain, choose a chain link such

that, when an M4 Socket Head Cap Screw is pushed through that link and

through the Ø4.5 mm hole in the triangular support bracket, a washer and

an M4 Nylok Nut can be ﬁ tted, leaving sufﬁ cient thread on the bolt so that

the chain may be tensioned. For now, take up the slack. Repeat for the

right side.

Step 4

Mounting the Paratrak and the Battery Box

With the foot of the door

opened

waist

height,

measure

and

mark

the

horizontal mid-point of the

door just above the bottom

rail. Position the Paratrak unit

A video is

with its output stage centred

available on our

website to assist

on the mid-point of the door,

you with this

and its underside touching

installation.

the aluminium bottom rail.

Drill through the upper-right

mounting bush with a Ø6 mm

bit.

Reach under the bottom rail

and push an M6 Cup Square

Figure 6

Bolt through the hole and the

mounting bush, and ﬁ t an M6 nut, ﬁ nger-tight. Now, with the Ø6 mm bit,

drill through the remaining three mounting bushes. Remove the unit from

the door and enlarge all the holes with a Ø7 mm bit. Reﬁ t the unit using

four M6 Cup Square Bolts and M6 Nuts, tightening them with a 10 mm

socket nut-driver until the heads are ﬂ ush on the outside.

Step 5

Battery Box

Hold the Battery Box (without

batteries) against the door

to the left of the Paratrak

with its feet standing on the

bottom rail, with a 30 mm gap

between the two.

In this position and on the

right of the box, drill through

the mounting bush that best

suits the corrugation of the

Figure 7

door with a Ø6 mm bit. As

above, ﬁ t an M6 Cup Square Bolt and nut, ﬁ nger-tight. Drill through the

corresponding mounting bush on the left. Remove the Box and enlarge

the holes with a Ø7 mm bit. Secure the Box with two M6 Cup Square Bolts

and nuts, tightening them with a 10 mm socket nut-driver until the heads

are ﬂ ush on the outside.

Step 6

Connecting the Cables

Flex the side clips and remove the Light Cover from the front of the Battery

Box. Set the cover aside until later.

Place the two batteries in the Battery Box with the terminals of each near

the middle.

Optional receiver

Controller

Curly cord

Battery

terminals

socket

plug

Figure 8

As in Figure 8, connect the Black battery wire to the left Black terminal,

and the Red battery wire to the right Red terminal. Leave the 3-Pin plug

from the batteries un-plugged at this stage. Connect the White Jumper

wire from the left Red terminal to the right Black terminal. Insert the

matching plugs from the Paratrak into the sockets, ﬁ rst and fourth from

the right of the Controller. See Figure 9.

At this stage, check that the door is neutrally balanced. If necessary, adjust

the spring force to balance the door.

Auto close link

Button

Force adjustment

Beam link

Figure 9

Step 7

Cutting the Shafts to length

Starting on the left side, move the Sprocket Cover assembly to the same

level as the bottom rail. Note the size of the gap between the Sprocket

Cover and the side guide (see Figure 10). Insert the formed end of a Shaft

into the hub of the sprocket inside the Sprocket Cover Assembly and,

while maintaining the gap, hold the Shaft horizontally so that it overlaps

the hub of the Paratrak, and mark the Shaft opposite the centre of the

nearest hub screw (see Figure 11).

Figure 10

Figure 11

Cut the Shaft at that mark and de-burr the sharp edge with a ﬁ le. Slide two

Bearing Brackets onto the shaft, clip them into the bottom rail (as in Figure

12) and push the end of the shaft into the Output Shaft.

Sprocket housing

Outer bearing

Bottom

Inner bearing

assembly

bracket

rail

bracket

Chain

Figure 12

Motor

socket

Left drive

shaft