Woodhead E, EA & EL Series Balancer - Manual (Page 2)

SM113102D Page 2 of 5 ©Aero-Motive Company Aug-01
When attaching tool to lower hook,
the tool should be lifted to the hook
rather than pulling empty hook out
against the reel tension. The drum
lock can be engaged to prevent
cable from retracting (see
illustration under “Tool
Replacement”). The retaining latch
on lower hook must be snapped
back in the closed position after tool
is attached.
SPRING TENSION ADJUSTMENT
NOTE: Attach full load including all attachments before adjusting tension. Only use adjusting nut to set
tension. If tension is removed well below the rated range of the balancer during spring
adjustment, automatic lock will engage. It will be necessary to apply more tension to release lock.
If weight of tool exceeds amount of existing tension of the balancer
mainspring, cable will descend. Spring tension can be adjusted by
turning adjustment nut clockwise to increase tension or
counterclockwise to decrease tension. If tension exceeds the load,
the tool will move upward. The adjustment is accomplished through
a worm gear. The 30:1 gear requires many turns to significantly
affect tension. If cable does not reach full extension, some tension
must be released. After adjusting tension, pull cable to fullest
extension to insure proper travel is achieved. If proper tension
cannot be achieved, consult factory.
SPOT BRAKE (EL SERIES)
NOTE: See “Automatic Lock” if Balancer locks up.
A spot brake is provided for fine adjustment to eliminate any “creeping” tendency. This adjustment is
made only if desired and after adjustment, as explained in “Spring Tension Adjustment”. To adjust, loosen
lock nut and back up the brake adjusting screw until balancer works freely. Next, apply pressure to spot
brake by moving adjustment screw in or out until desired setting is reached. Reset lock when adjustment
is completed.
AUTOMATIC LOCK
NOTE: If tension is removed well below the rated range of the Balancer during spring adjustment, the lock
will engage. It will be necessary to apply more tension to release the lock.
If a spring should break or lose tension for any reason, an automatic pin lock will engage to prevent drum
from turning. Lock will disengage when tension is applied to a new spring.
RATCHET LOCK (EL SERIES)
The ratchet/holding lock (separate from automatic lock) will function in
three positions per revolution, providing five to six inch increments. To
hold, pull cable down to desired height, halt, and let lock engage. To
disengage, simply pull cable down slightly, permitting the lock to
release. Cable will retract until end of travel, or until lock is re-engaged.
If ratchet lock is not required, it can be disengaged by moving the pin in
the housing downward and engaging hook-shaped lock arm over it.
CABLE STOP ADJUSTMENT
NOTE: Moving cable stop will reduce the active travel distance.
Relocating cable stop is not recommended. Rather, overhang cable assembly (see replacement parts,
Accessory “A”) is recommended.