7
3
Operator Installation
3.1
Operator Mounting Options
The heavy-duty jackshaft operator line has a dual output shaft and may be wall mounted on either the left hand side
or the right hand side of a sectional door or a rolling door. The heavy-duty jackshaft hoist model comes with a chain
hoist located on the right of the operator. If the application requires that the chain hoist be located on the left of the
operator, it may easily be moved in the field, per the instructions found in section 4, p.10.
This operator is not intended to be installed on horizontal slide doors.
Figure 5 - Right Side or Left Side Wall Mount
(Chain Hoist on Right)
Figure 6 - Right Side Wall Mount
(Chain Hoist on Right)
3.2
Operator Mounting Holes
CAUTION
The operator has exposed moving parts and to prevent access to the pinch points, this operator must be installed
at least 8 feet (2,44 m) or more above the floor. Alternatively, covers or guarding, provided by the manufacturer,
must be installed when the operator is mounted less than 8 feet (2,44 m) above the floor.
1. Ensure that the wall or mounting surface provides adequate
support for the operator. The surface must be rigid enough to
prevent any play between the operator and the door shaft.
2. Locate the four mounting holes and the two positive locking
holes, as shown in Figure 7.
3. The optimum distance between the door shaft and the
operator drive shaft is between 12" and 15".
4. Secure the operator to the wall with 1/2” thru-bolts. If the wall
construction prohibits the use of thru-bolts, then sufficiently
sized lag bolts and anchors may be used.
5. Only tighten the bolts after having adjusted the tension of the
drive chain.
6. Ensure that the door shaft and the operator shaft are
parallel.
7. Adjust the drive chain as per instructions found in section
8. Secure the positive locking holes with 1/2” thru-bolts in order
to prevent the operator from moving during the operation,
which keeps the drive chain alignment straight and avoids
abusive wear to the sprockets.
Figure 7 - MGH Mounting Holes
For technical support, please call
1-800-361-2260
for more information
Positive Locking
Holes
