Troubleshooting

The tension is not set correctly. Rotate the worm gear counter clockwise until the rubber buffer falls slightly away from the nozzle. If the safety detent engages locking up the drum, the balancer must be changed to a lighter capacity. Weigh the load and select the model that places it between the mid and high side of the range.

Reduce the tension on the spring until the buffer falls away slightly from the nozzle. Then increase the tension until the load slowly retracts without effort.

The spring tension is set to the high side of the range and is suspending a load that places it on the low side of the range. Reduce the tension and add weight to the load.

If possible, extend the cable to full extension and carefully examine it for fraying, kinking or damage. If there is any sign of wear on the cable, drum or nozzle, replace the unit and have it inspected immediately. Make sure the cable clamp is tight. Verify the cable from the load end to the clamp does not exceed specifications of 4.9 feet on 7228, 6.5 feet on 7221, 7230, and 7240, and 9.8 feet on 7250 single and double spring units.

If the cable is visibly wrapped around the shaft, by observing through the nozzle, the balancer will have to be disassembled to disengage it. See above for cause relating to cable clamp slipping.

The balancer can't track the work if rotation and floatation are inhibited. The cable may be generating nozzle or angle friction. The nozzle will show wear and must be replaced. The balancer may be hung too low for the job. If there is a long travel area, make sure the cone area encompasses the entire work area. Raise the balancer if necessary. The other alternative would be to install an additional rail and trolley to insure the work area stays within the cone work area.

See cable binding above. The bearings may need cleaning or greasing. The shaft may have been installed out of line with the worm, and is wearing on the inner lip of the drum cover, housing cover and worm. It must be inspected.

Extend the load as far as possible. Look into the side window of the balancer to verify that the cable is extended to the cable anchor. Models 7240 or larger will not extend to the anchor. The cable limiter will be visible through the window in the bottom of the balancer next to the nozzle. If it is engaged, a longer cable is indicated. Determine the length of cable needed and compare to the specifications. The job may require a larger balancer with a larger drum and more travel. If the tool can be positioned lower in the retracted position, add a cable extension or install a longer cable jn the balancer. Longer cables are available up to 15 feet long for models 7221, 7228, and 7230, and 22 feet long for models 7240, 7250 and the 7250 double spring balancers. Always verify that the drum is completely loaded before adding a cable extension. Do not lower the tool by reducing the cable travel from off the drum. This significantly reduces spring life. Follow "quick changing the cable" procedures.

The maximum tension on the spring has been exceeded. This can damage the spring. Remove the load and rotate the worm until the buffer falls away from the nozzle. Refer to the "Load Range Table and add the required number or rotations to the shaft to fully load the balancer. The cable can be extended completely as long as the maximum tension has not been exceeded.

Look on the cone end of the balancer on models 7230 and 7240, and on the bottom of the 7250 and 7250 Double and determine if the drum locking pin is depressed. If so and the cable is retracted, pull down slightly on the cable to take the spring pressure off the pin, and press in and rotate 1/4 turn counter clockwise and release. It will spring out flush with the housing. If the cable will extend, no further action is necessary.

The tension has been released or the spring is broken. If rotating the worm gear clockwise will not release the detent, the unit will have to be replaced, and the spring changed. If additional tension releases the detent, the balancer may be oversized. Weigh the load and verify that it falls between the mid and high side of the spring capacity for the model. Refer to the specifications and determine if the unit installed is correct. If so, load the balancer to the high side of its range and then reduce the tension back off until the load falls away. If retraction is necessary, add tension until the load retracts without effort.

Look up into the drum cavity through the nozzle, and verify that cable is wound onto the shaft at the end of the cable grooves on the drum. The balancer will have to be dismantled to be repaired.

Use a flashlight to inspect the drum through the nozzle and through the side window on the housing. If an object is visible, lock the drum, and take the unit down, open the housing lid and remove the object. Inspect for drum damage, and if uncertain replace the unit.

Refer to the load range table, and only add tension. If the balancer remains locked up after rotating the shaft one full rotation, replace the unit.

Look through the nozzle and determine if the drum is fully loaded with cable. If not, the spring tension must be increased until the balancer retracts effortlessly on its own. As soon as the drum has the maximum cable wound onto the drum, according to the specifications, tock the drum. Move the cable clamp up against the nozzle and tighten securely. Determine whether there is sufficient travel and external cable to perform the job. Either replace the cable with a longer version or add a cable extension below the socket, and then reduce tension untit the load starts to fall. Add only enough tension to retract the load without effort, only if retraction is necessary. (See adjusting tension.)

Weigh the load, and determine which model should be installed. Confirm the load falls within the spring capacity or if a secondary balancer should be used to suspend the cable's etc. which can take up to 46 pounds off the primary balancer. If a secondary balancer cannot be used, change the unit out for the next larger model or change series.

Raise the tension by rotating the worm gear clockwise until the buffer is against the nozzle. Then reduce it until the load starts to fall away from the nozzle. If the clicking persists, weigh the load and verify it falls between the mid and high side of the load range. Replace the unit if necessary.

Raise the tension by rotating the worm gear clockwise until the buffer is against the nozzle. Then reduce it until the load starts to fall away from the nozzle. If the clicking persists, weigh the load and verify it falls between the mid and high side of the load range. Replace the unit if necessary.

Try the next smaller version of the series on the high side, rather than being on the low side of a higher capacity unit.

If the smaller unit can't handle the load, weigh the load, verify the correct range, and add some weight to the fixture, or above the tool to position the load above the mid level of the range.