SAFETY WARNINGS
Installation, service and maintenance
repairs must be carried out by quali-
fied personnel. They should be alert-
ed to the dangers associated with
spring balancers. The user must read
and understand these instructions
before installation, placing the unit
in service or attempting repairs.
DO
NOT STAND UNDER SUSPENDED
LOADS.
The safety chain
MUST
be installed to
a structurally sound and independent
mounting point complying with local
safety standards, before placing the
unit in service.
THE CABLE CLAMP AND RUB-
BER BALL MUST BE AGAINST
THE NOZZLE BEFORE ANY SER-
VICE OR REPAIR PROCEDURE IS
SAFE. SECURE THE END OF THE
CABLE BY ATTACHING A LOAD
WITH A WEIGHT GREATER THAN
THE SPRING CAPACITY OF THE
BALANCER. IMMEDIATELY LOCK
THE DRUM AND MOVE THE CA-
BLE CLAMP AND BALL UP TO THE
NOZZLE AND TIGHTEN SECURELY
BEFORE PROCEEDING.
Do not remove the load unless the
cable is completely retracted, except
when changing the cable. (See in-
structions.)
ALLOWING AN UNLOAD-
ED CABLE TO RACE FREELY BACK
INTO A BALANCER IS DANGEROUS
AND WILL DAMAGE THE SPRING.
When changing the spring, both the
inner and outer lips must be removed
simultaneously to avoid an accordion
condition which is a safety hazard.
WARNING: DO NOT OPEN THE
SPRING CARTRIDGE. THIS IS AN
EXTREMELY DANGEROUS SAFE-
TY HAZARD.
THE CABLE FERRULE MUST BE
INSTALLED FLUSH, ONLY ON THE
FREE END OF THE CABLE. (FIG-
URE 1.) NEVER CRIMP THE LOAD
SIDE OF THE CABLE.
Do not exceed the capacity or reduce
tension below the minimum rating of
the spring as damage will occur and
durability will be adversely affected.
Stop rotating the worm as soon as
the rubber buffer falls away from the
housing, when the safety detent en-
gages or when an unloaded cable no
longer has upward tension.
Never install the balancer without the
hanging suspension.
INSTALLATION
Suspend this product from a structur-
ally sound mounting point. Immedi-
ately install the safety chain so that
the balancer is prevented from falling
more than 4 inches in the event of
suspension failure. If this occurs, both
the housing and safety chain must be
replaced immediately. Rotation and
floatation of the balancer must not be
restricted by the safety chain or other
cables and hoses. It must swing freely
so the cable and load can extend fully
without creating angle friction.
This balancer has 6.5 feet of cable
for travel and 3 feet of external cable
for positioning. Position the load by
removing the trigger snap and the
wedge. Push both sides of the ca-
ble through the socket and slide the
socket on the free end of the cable to
the desired length. The cable socket
must be positioned at least 4 inches
below the cable clamp.
Reinstall the
wedge inside the socket or the load
will fall causing an injury or tool
damage. Reinstall the trigger snap
to prevent the wedge from falling
out of position.
If load positioning
requires additional cable, change out
the cable assembly with a longer ver-
sion (007.335128) or attach a cable
extension below the socket.
NEVER
REDUCE SPRING TENSION TO PO-
SITION THE LOAD OR REMOVE CA-
BLE FROM THE DRUM.
Cut off any
unused cable at least 1 inch above
the socket and
securely attach the
cable ferrule flush, only on the free
end of the cable. THIS IS A SAFETY
REQUIREMENT.
(Figure 1)
TENSION ADJUSTMENT
This product is delivered with the
maximum spring tension installed. Do
not attempt to exceed the maximum
rating or operate below the minimum
rating or spring damage will occur.
Tension is
increased
by rotating the
worm
clockwise
and
decreased
by
rotating the worm
counter clockwise
.
Determine the total load weight in-
cluding all attachments using a spring
scale, and compare to the model’s
capacity printed on the label. The
optimum performance occurs when it
falls between the mid and high side of
the range. Refer to the “Load Range
Table” to ascertain the number of rota-
tions of the shaft required to load the
unit from zero to the high side of the
spring’s capacity, and therefore to un-
load it to zero.
Rotating the worm
after all tension is released will
damage the spring.
Attach the load and rotate the worm
counter clockwise
using a 17 mm
socket until the rubber ball falls slight-
ly away from the nozzle. An accurate
counter balance has been obtained
when the load can be positioned any-
where along the cable travel without
increasing or decreasing forces. If the
load must retract, add tension by rotat-
ing the worm
clockwise
until the load
retracts without effort.
The upward
spring tension required to retract
the load must be overcome by the
operator and may result in repeti-
tive and cumulative stress injuries.
Extend the load to allow the adjust-
ment to pass completely through the
spring.
QUICK CHANGE CABLE
PROCEDURE
Extend the cable with the load at-
tached until the cable anchor pre-
vents further rotation of the drum and
is visible through the side window on
the balancer. Lock the drum by de-
pressing and rotating the drum lock
pin 1/4 turn clockwise. The slot in
the drum lock screw must be turned
from horizontal to vertical and when
locked remains depressed. Verify that
the drum is secured by attempting to
raise or lower the cable. Unhook the
load, and push the cable up from be-
low the nozzle until the cable ferrule is
extended out through the side window
of the housing. (Figure 2). Remove the
brass sleeve and pull the cable out
of the drum from below the nozzle.
Install the new cable by pushing the
ferrule end up through the drum slot
and out through the side window. Re-
install the sleeve onto the ferrule and
pull the cable down from below the
nozzle until the ferrule is firmly seat-
ed in the drum with the open side of
the sleeve facing outwards.
FAILURE
TO REINSTALL THE SLEEVE WILL
RESULT IN THE CABLE PULLING
STRAIGHT OUT OF THE DRUM, AL-
LOWING THE LOAD TO FALL AND
CAUSING POSSIBLE INJURY.
Reat-
tach the load, pull down on the cable
and unlock the drum by depressing
and rotating the drum lock pin 1/4 turn
counter clockwise allowing it to spring
back flush to its original position. The
load will retract when the drum lock is
released. This procedure does not re-
quire tension adjustment.
DISASSEMBLY & REASSEMBLY
WARNING • AN UNLOADED CABLE
RETRACTING INTO A BALANCER
IS EXTREMELY DANGEROUS AND
CAN CAUSE SEVERE INJURY. THE
CABLE CLAMP AND RUBBER BALL
MUST BE AGAINST THE NOZZLE
BEFORE ANY SERVICE OR REPAIR
PROCEDURE IS SAFE. SECURE THE
END OF THE CABLE BY ATTACHING
A LOAD WITH A WEIGHT GREATER
THAN THE SPRING CAPACITY OF
THE BALANCER. IMMEDIATELY
LOCK THE DRUM AND MOVE THEM
UP TO THE NOZZLE AND TIGHTEN
SECURELY BEFORE PROCEEDING.
Inspect the drum by looking through
the nozzle to find out if the cable is
cross threaded and is preventing the
drum from rotating. If this condition
exists, remove the housing cover and
observe the safety detent pin as the
tension is removed. Refer to the “Load
Range Table” to determine the maxi-
mum number of rotations the worm
will be turned to release the spring
tension. Rotate the worm
counter
clockwise
using a 17-mm deep sock-
et until the rubber ball falls away from
the housing, the safety detent engag-
es or until no upward tension remains
on the cable. To prevent damaging the
sprint, rotation of the worm must stop
immediately.
Remove the housing cover and drum
lid. Install the spring removal tool into
the slot on the safety detent pin and
pull the pin out towards the housing
wall. Attach a second tool between the
outer all of the drum and the inner edge
of the detent pin. This allows the spring
to be removed from the drum.
Use nee-
dle nose vice grip pliers to lift both
the inner and the outer lips from the
drum simultaneously. Lifting either
lip without the other is dangerous
and can result in an accordion con-
dition which is a safety hazard.
Re-
move the cable from its drum anchor-
ing point, remove the sleeve from the
ferrule, and pull the cable out through
the bottom of the drum. (Figure 2).
Place the open drum face down and
remove the rear cover disc, the snap
ring and the top worm gear washer.
Install a 4-x 25-mm cap head screws
into the end of the shaft until it bot-
toms out. Back out 1/4 turn, and tap
on the cap head until the shaft falls
through the worm gear. The woodruff
key should remain in place. Remove
the worm gear, the bottom washer
and the shaft. Tap the shaft out of the
drum, and begin inspection.
INSPECTION
Inspect the housing, worm gear,
nozzle, suspension, safety chain and
shackle for damage or wear. The hook
should rotate freely, and the safety
latch must function properly. Wear on
the nozzle indicates that the floata-
tion and rotation are being inhibited
by other cabling or hoses. The work
area should be evaluated as it may
be too large for the unit as installed.
Raising the height of the balancer or
increasing the cable length may be
necessary to insure freedom of move-
ment. Grease the suspension and all
other friction parts. Lock and unlock
the drum locking pin and verify that it
is functioning properly.
Inspect the drum fro damage or wear.
Verify that the safety detent pin func-
tions properly and that the cable an-
chor seat is not elongated or damaged.
Examine the spring to verify that it
is functional. The inner lip should fit
snugly into the inner lip of the shaft
and should not be more than 1/8 inch
larger than the shaft. Discard a dam-
aged spring in an appropriate con-
tainer for disposal.
Move the cable clamp and inspect the
entire cable and replace it if there is
any sigh of wear. Verify that the trig-
ger snap is working properly and that
the cable ferrule is installed correctly.
Lubricate all ware parts including the
tripper snap and the cable with acid
free grease. This will significantly im-
prove their durability.
REPLACING THE SUSPENSION
If the snap hook is damaged or worn,
remove the cotter pin from the holder
pin and remove the pin, holder and
hook. Replace the entire suspension,
and reinstall the pins and cotter pins.
Grease all friction parts including the
bearing below the hook, the top and
bottom of the holder, and the holder pin.
REPLACING THE HOUSING
Remove the hanging suspension and
discard the housing should there be
any cracks or visual damage. The
housing and safety chain must always
be replaced in the event of suspen-
sion failure. It must also be inspected
carefully for damage in the event of a
cable failure above the ball where the
spring and cable drum rotated at high
speed until the safety detent released
with severe force into the housing
wall. Attach the suspension to the
new housing and verify that the safety
chain is installed securely.
FABRICATING A CABLE
ASSEMBLY
The basic cable, (007.335128) is 3.0
feet longer than the cable used in a
standard cable assembly. All parts
required except the ferrule may be re-
used from an old cable assembly or
ordered individually as needed. Refer
to the parts’ list to determine the items
which need to be ordered. The basic
cable has a cable ferrule compressed
on the load side of the cable for an-
choring in the cable drum. Slid the
rubber ball onto the free end and then
attach the cable clamp
6.5
feet from
the ferrule end. Secure a new cable
ferrule without crimping the cable di-
rectly below the cable clamp. Feed
the open end of the cable up and back
down through the socket. Install the
wedge, pull the load and free side of
the cable tight forcing the wedge down
into the socket and attach the trigger
snap. The socket must be installed at
least 4 inches below the cable clamp.
Slip a ferrule onto the free end of the
cable for use during installation and
install the brass sleeve on the anchor
ferrule. (Figure 2)
REPLACING THE CABLE
ASSEMBLY
Install the drum back into the hous-
ing. Then replace the worm gear, both
top and bottom worm gear washers,
the snap lock and the rear cover disc.
Install the cable assembly and attach
the sleeve onto the ferrule. Insure that
the ferrule is anchored properly in the
drum. Rotate the drum counter clock-
wise until the ball is near the nozzle.
REPLACING THE CABLE DRUM
The drum should be replaced if the
cable grooves are damaged of if there
is any elongation or sign of cracking in
the cable anchor slot. To change out a
damaged drum, remove the shaft by
tapping on the 4-mm cap head screw
installed in the back end of the shaft,
until it slides out of the drum. Install
the bottom drum washer on the shaft
and insert the shaft through the drum.
Place the bottom housing washer on
the shaft and slide the shaft through
the housing.
Run the balancer over and install
the bottom worm gear washer and
the align the worm and the woodruff
key into the key way on the shaft. Tap
lightly on the worm gear until they
slide down onto the shaft. Insure the
woodruff key is positioned correctly
so the snap ring groove clears the
top of the worm gear. Install the snap
ring, top washer and the cover disc
with the nipple placed down into the
key way on the shaft. Turn the balanc-
er over and wind the cable onto the
drum until the rubber ball is touching
the nozzle.
REPLACING THE SPRING
The cable should be installed prior to
replacing the spring. Match the ca-
pacity of the replacement spring with
the version indicated on the housing
cover. If converting the model from its
present capacity to a different version,
the label must be replaced or the new
load range should be painted on the
housing.
Pull the safety detent pin out com-
pletely and secure with the spring
removal tool. Place the new spring
next to the housing with the outer lip
pointing left and down in the midnight
position. Turn the housing so that the
outer lip on the drum is also in the
midnight position. Determine the po-
sition of the inner lip on the spring and
rotate the shaft to match its position.
Install the new spring by pushing both
lips down into the shaft and drum
si-
multaneously
.
FINAL ASSEMBLY
Install the drum and housing lids and
rotate the shaft clockwise until the ball
is secured against the nozzle. Refer
to the “Load Range Table” to deter-
mine the number of rotations of the
shaft required to load the spring to
its maximum capacity. The balancer
should always be loaded to the high
side, and the tension verified with a
spring scale before returning the unit
to service.
7230 INSTALLATION OPERATING AND MAINTENANCE INSTRUCTIONS
T
o
R
emove
T
he
o
lD
c
able
1. Engage the drum lock when the cable is
fully extended and the cable anchor is
visible through the side window
2. Push the cable upwards (1) out the cable
drum seat until it extends through the
window on the side of the balancer
3. Remove the sleeve (2) from the cable (3)
by inserting a #1 flat screwdriver between
the sleeve and the ferrule and rotate.
4. Pull the cable downwards out of the slot
in the drum through the nozzle.
T
o
i
nsTall
T
he
n
ew
c
able
1. Push the cable up from below the nozzle
(1) through the groove in the cable drum
and out through the side window.
2. Attach the sleeve (2) to the new table
ferrule (3) and press firmly to seat.
3. Pull the cable down until the cable
securely anchors in the drum seat. Insure
that the open side of the sleeve faces
towards the window.
4. Attach the load, pull down on the cable
and release the drum lock.
Figure 2
R
aTcheT
K
iT
7231– c
omPonenTs
P
aRTs
