• Install only on a properly balanced garage
door. An improperly balanced door could cause
severe injury. Have a qualified service person
make repairs to cables, spring assemblies and
other hardware before installing the opener.
• Remove all ropes and remove or make
inoperative all locks (unless mechanically and/or
electrically interlocked to the power unit) that are
connected to the garage door before installing
the opener.
• Lightweight doors (fiberglass, aluminum etc.)
must be reinforced to avoid door damage.
Check the door manufacturer’s instruction
manual for a bracing procedure or the availability
or a Reinforcement Kit.
• PowerMaster Models H and J are Commercial
Vehicular Door Operators and as such are NOT
recommended for pedestrian traffic. In
installations where it is known that pedestrians
will be nearby ensure a pedestrian door is
available for entrance and exit to the building. In
addition YOU MUST install an auxiliary
entrapment protection device (reversing door
edge or photoelectric beam device) as part of
the compete operator system.
• Connect an auxiliary entrapment protection
device (reversing edge or photoelectric device
across the door opening). A device of this type
is STRONGLY ADVISED FOR ALL commercial
operator installations. An auxiliary entrapment
protection device is REQUIRED when the three
button control station is out of sight of the door
or any other automatic or manual control is
used.
• Install the opener at least 8 feet or more
above the floor.
• Do not connect the opener to the source of
power until instructed to do so.
• Locate the control station:
a) within sight of the door and;
b) at a minimum height of five feet above
the floor and;
c) away from all moving parts of the
door.
• Do not overtighten the clutch adjustment to
compensate for a poorly working door.
• Securely attach any WARNING signs or
placards to either the door or above the control
station as directed (see page 11).
• After installing the opener, all safety features
must be tested for proper operation (see page
16).
TO REDUCE THE RISK OF SEVERE INJURY
OR DEATH: READ AND FOLLOW ALL
INSTALLATION INSTRUCTIONS!
WARNING
IMPORTANT INSTALLATION NOTES
tem # Description Qty. Item # Description Qty.
1 Operator Power Head 1 10 Sash Chain, Precut 1
2 Driven Sprocket on Door Shaft 1 11 Chain lock Bracket 1
3 Set Screw, 5/16-18 x 1, Square
Head
2 13 Hand Chain, Precut 1
4 Steel Square Key 1 14 Mounting Bracket Optional
6 Drive Chain 1 15 Wall Mounting Plate w/Studs Optional
7 Master Link 1 16 Drive Sprocket 1
8 3 Button Station 1 17 Set Screw, 5/16-18 x 5/16
socket head set screw
2
18 Key, 1/4 x 1/4 x 1 1
TABLE 1 - COMPONENT IDENTIFICATION LISTING
5
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