User Guide

Door Shaft

Shaft Couplings

(not provided)

When performing this modification

the door should be closed and no

tension on the doorshaft

CENTER MOUNT MODIFICATION

NOTE: View shown as if looking through wall.

CENTER MOUNT MODIFICATION

For Use With J Operator

657001

DESCRIPTION QTY

Instructions 1

Length Sash Chain 12' 1

Center Mount Assembly 1

Eyebolt 1/4-20 2

Key ring 1-1/4" 1

Hex Nut 1/4-20 4

Hex Bolt 3/8"-16 4

Split Lock Washer 1/4" 2

APPLICATION

This modification is available to models J and DJ operators. For

use on sectional doors, must be factory supplied with operator.

FUNCTIONS

An additional stage of speed reduction is provided in the operator

to reduce the output speed to 24 RPM. This allows the unit to be

directly coupled in the center of the door shaft. Shaft couplings

are not provided.

PREPARATION

Unpack kit to verify the parts listed are included. Refer to

installation on reverse side.

FIGURE 1

PACKING LIST

To prevent possible SERIOUS INJURY or DEATH, disconnect

electric power to operator BEFORE installing.

ALL installations and electrical connections MUST be made by

a qualified individual.

WARNING

CAUTION

WARNING

PAGE 1
CENTER MOUNT MODIFICATION For Use With J Operator 657001 WARNING WARNING APPLICATION CAUTION WARNING This modification is available to models J and DJ operators. For use on sectional doors, must be factory supplied with operator. To prevent possible SERIOUS INJURY or DEATH, disconnect electric power to operator BEFORE installing. ALL installations and electrical connections MUST be made by a qualified individual.
PAGE 2
I N S TA L L AT I O N I N S T R U C T I O N S 1. Remove (2) frame connecting bracket bolts, be sure to leave bracket in same position (Figure 2). 2. Position center mount bracket assembly as shown (Figure 3). Install (2) 3/8-16 x 1" hex head bolts and (2) 3/8-16 serrated flange nuts to connect bracket, frame and connecting bracket (be sure the connecting bracket stays in the same position it was in when the bolts were removed in step one). Do not fully tighten the bolts at this time (Figure 2). 3.