15
STEP 4 - DETERMINING MOUNTING POSITION OF MOTORHEAD UNIT
TIP UP TYPE DOOR (Refer to diagram on page 10)
OVERHEAD SECTIONAL TYPE DOOR (Refer to diagram on page 12)
With the door in the closed position, fasten front-end moulding into wall
bracket using the M8 x 90mm hexagonal bolt and a M8 Nylock nut.
Fasten using your 13mm spanners and/ or wrenches.
Lift motor unit out of the way of the door travel, supporting it with a
stepladder 90
O
to wall.
Release the sledge from the bobbin by pulling the release lever down
90
O
to drawbar. This will assist in the attaching of the linkarm to the
sledge mounting.
Fasten the link arm to the sledge, using your 13mm spanners and/or
wrenches and 1 of the M8 x 25mm hexagonal bolts and M8 Nylock nuts.
Be certain not to over tighten the nut and bolt as the link arm must be
able to swing freely up and down in the sledge mounting.
For
OVERHEAD SECTIONAL TYPE DOOR
installation, open door and
support motorhead so that the drawbar is 50mm above the door (level
with your spirit-level).
For
TIP UP TYPE DOOR
:
Open door to check travel clearance.
Ensure link arm is in the horizontal position when door is horizontal.
INSTALLING THE HARDWARE
H I G H E S T P O I N T
O F T R A V E L
1 8 0
o
Now proceed to Step 5 - Mounting the motorhead unit and
hanging straps.
Figure 15.1
D O O R A N D L I N K A R M S H O U L D B E L E V E L
