830873-0001 REV 02/20/2023
©Copyright 2023 Wayne Dalton, a division of Overhead Door Corporation
8
3. IDENTIFY BARREL ASSEMBLY DRIVE END
Right hand drive shown in Figure 7; left hand drive is opposite. Look for an
“R” for right hand drive or an “L” for left hand drive stamped on the end of
the drive shaft.
SPRING CONFIGURATION
See Figure 7.
• Left hand drive counterbalance has end of spring pinned to barrel
near tension end.
• Right hand drive counterbalance has end of spring pinned to
barrel several feet from tension end.
• At tension end of barrel the bearing assembly is pinned to the
barrel, as shown in Figure 8.
TENSION
SHAFT
DRIVE
SHAFT
DRIVE
SHAFT
3/8
"
PINS
LEFT HAND DRIVE
TENSION
SHAFT
TOWARDS CENTER
OF PIPE
3/8
"
PINS
SEVERAL
INCHES
RIGHT HAND DRIVE
Figure 8
Figure 7
Pre-Door Install (continued)