SM3120-14F
Page 4 of 7
© Woodhead Feb-08
If reel will not develop tension or retract cable, spring assembly may need to be replaced. Remove
junction box cover. Disconnect line-input wires from collector ring bus wires. Also disconnect cable free
end and allow spring to unwind completely. Remove screw, shaft retainer, the pull complete spool
assembly with cable from base. Remove cable guide, spring clip, ratchet spring, shoulder bolt and
ratchet pawl from spring pocket assembly. Remove spring pocket assembly from base and replace with
new part. To reassemble, reverse the above procedure making sure the dimple in the shaft retainer is
toward the main shaft. Re-tension cable reel as per instructions.
COLLECTOR RING REPLACMENT
WARNING:
Disconnect and lock out all power to reel and remove all tension on spring before
servicing collector ring assembly. Hazards or unsafe practices COULD result in severe
personal injury or death.
CAUTION:
Check continuity and replace all covers before turning on electrical power. Hazards or
unsafe practices MAY result in minor personal injury or product or property damage.
WARNING:
Check placement of brush holder assemblies to make sure terminal locations are
centered between the protruding lobes on the inner and outer drums. Hazards or unsafe
practices COULD result in severe personal injury or death.
NOTE: Check position of cable entry in relationship to studs marked by “X” in figure. Replace
subsequent brush assemblies in clockwise rotation
To service the collector ring
assembly, remove junction box
cover and disconnect bus wires in
junction box. Remove cover, if
required, and outer drum-half.
Unclip brush assembly from brush
studs and remove. Notice position
of brush assembly. Remove all
brush assemblies from collector
ring. Loosen collector ring set
screw & slide collector ring off
main shaft. To reassemble,
reverse above procedure.
The last brush assembly--one
closest to steel hub on collector
ring--must be assembled on brush
studs indicated by the “X” in the
figure BELOW.
WORKING CABLE REPLACEMENT/INSTALLATION
WARNING:
Disconnect and lock out all power to reel and remove all tension on spring before
servicing collector ring assembly. Hazards or unsafe practices COULD result in severe
personal injury or death.
CAUTION:
Check continuity and replace all covers before turning on electrical power. Hazards or
unsafe practices MAY result in minor personal injury or product or property damage.
NOTE: Cable seal is a bellows type seal designed to fit different size cables. Pull out the
bellows in one direction and cut the seal so that the through opening is at least 1/8"
diameter smaller than the working cable. Always cut the seal smaller than required.
More of the seal may be cut off if necessary.
The procedure below applies to both new installations and for replacement of working cable. To
install/replace cable loosen seal cover and cable seal.
Remove cover, if required, and outer drum half.
Loosen or remove cable clamp & individual conductors of working cable from brush assemblies. Pull
working cable through opening of inner drum & remove seal cover, & cable seal from old working cable.
