PARTS DESCRIPTION KROMER · KROMERTM “Zero Gravity” Tool Balancers 6720 North 16th Street • Omaha, NE 68112-3497 Call (402) 457-7444 888-811-3254 Fax (402) 451-6513 [email protected]

KROMERTM“Zero Gravity” Tool Balancers

6720 North 16th Street • Omaha, NE 68112-3497Call (402) 457-7444

888-811-3254 Fax (402) [email protected] • www.packerskromer.com

Processor Division®

PARTS DESCRIPTIONSeries 7228

1. Nameplate, Model, Capacity(front view only)

2. Safety Chain

3. Hanging Suspension

4. Shaft, Tension Adjustment(back view only)

5. Rubber Ball

6. Cable Clamp

7. Cable Ferrule

8. Cable Socket w/ Wedge

9. Drum Lock Slot(front view only)

2

4

2

9

7

3

1

5

6

8

114"

5/8"

5/16"3.5"

19"3.3 Lbs.

3"360°

9"274 Lbs.

5.5"

4.9 Feet

3 mm

39576_7228 Instructions.indd 1-3 6/10/08 10:27:44 AM

PARTS DESCRIPTION

“Quality and Performance that sets the Standard for the World”

Physical DimensionsRotation 360˚Clearance 4''Hook Opening 9/16''Safety Chain Length 9''Safety Chain Rating 274 Lbs.Tool Mounting Point 5/16''Depth 5''Diameter 7''Length 21''Weight 8.5 Lbs.Cable Travel 6.5 FeetCable Extension 66''

7230/31 Series - Installation, Operating and Maintenance Instructions

ENGINEERING & EQUIPMENT CO., INC.

1 Floating Hanging Suspension1A Optional-Crosby Bullard Hook2 Safety Chain with Shackle3 Rubber Buffer Ball4 Cable Clamp5 Cable Wedge, Socket, &

Trigger Snap Hook6 Cable Ferrule7 Worm—17mm8 Drum Lock9 Rear Cover Disk10 Cable Assembly

1 2

9

8

7

3

4

106

5

2 1A

3

4

5

610

KROMERTM“Zero Gravity” Tool Balancers

6720 North 16th Street • Omaha, NE 68112-3497Call (402) 457-7444

888-811-3254 Fax (402) [email protected] • www.packerskromer.com

Processor Division®

PARTS DESCRIPTIONSeries 7228

1. Nameplate, Model, Capacity (front view only)

2. Safety Chain

3. Hanging Suspension

4. Shaft, Tension Adjustment (back view only)

5. Rubber Ball

6. Cable Clamp

7. Cable Ferrule

8. Cable Socket w/ Wedge

9. Drum Lock Slot (front view only)

2

4

2

9

7

3

1

5

6

8

114"

5/8"

5/16"3.5"

19"3.3 Lbs.

3"360°

9"274 Lbs.

5.5"

4.9 Feet

3 mm

39576_7228 Instructions.indd 1-339576_7228 Instructions.indd 1-3 6/10/08 10:27:44 AM6/10/08 10:27:44 AM

7228 SAFETY, INSTALLATION OPERATING & MAINTENANCE INSTRUCTIONS

SAFETY WARNINGSInstallation, service and mainte-nance repairs must be performed by qualifi ed personnel. They should be alerted to the dangers associat-ed with spring balancers. The user must read and understand these in-structions prior to installation, plac-ing the unit in service or attempting any repairs. AVOID STANDING UN-DER SUSPENDED LOADS.

The safety chain MUST be installed to a structurally sound and indepen-dent mounting point complying with local safety standards, prior to plac-ing 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 MOVE THE CABLE CLAMP AND BALL UP TO THE NOZZLE AND TIGHTEN SECURELY BEFORE PROCEEDING.

Do not remove the load unless the cable is completely retracted, ex-cept when changing the cable. (See instructions.) ALLOWING AN UN-LOADED CABLE TO RACE FREE-LY BACK INTO A BALANCER IS DANGEROUS AND WILL DAM-AGE THE SPRING.

ATTEMPTING TO ADJUST TEN-SION WITHOUT PREVENTING UNCONTROLLED SHAFT ROTA-TION, WILL RESULT IN SPRING DAMAGE. A 6-mm Allen wrench must be inserted into the end of the shaft and a fi rm grip applied to the tool before pushing inward be-cause once the shaft is pushed in the spring tension is released im-mediately onto the tool. DO NOT

OPEN THE BALANCER WITHOUT INSURING TENSION HAS BEEN FULLY REMOVED. THIS IS AN EX-TREMELY DANGEROUS SAFETY HAZARD.

THE CABLE FERRULE MUST BE INSTALLED FLUSH, ONLY ON THE FREE END OF THE CABLE. (Figure 1.) NEVER CRIMP THE LOAD SIDE OF THE CABLE.

Never install this product without the hanging suspension. The new “Locking Safety Hanger” is installed with the screw lock moving down, and tightened securely.

INSTALLATIONSuspend this product from a struc-turally sound mounting point. Rota-tion and fl oatation can be enhanced by attaching it to a quick link or car-abineer. Its movement must not be restricted by the safety chain or oth-er cables and hoses. It must swing freely so the cable and load can ex-tend fully without creating angle fric-tion. Immediately install the safety chain to an independent mounting point which prevents the balancer from falling more than 4 inches. The housing and chain must be replaced in the event of suspension failure.

This unit has 4.9 feet of cable for travel and 6 feet of external cable for positioning the load. Position the load by moving the cable socket down on the external cable and keep at least 4 inches between the socket and the cable clamp. The wedge must be installed inside the socket or the load will fall causing an injury or tool damage. Reinstall the trig-ger snap to prevent the wedge from falling out of position. If load positioning requires additional cable, attach a cable extension be-low the socket. NEVER REDUCE SPRING TENSION TO POSITION THE LOAD OR REMOVE CABLE

FROM THE DRUM. Cut off any un-used cable, 1 inch above the socket and securely attach the cable fer-rule fl ush, only on the free end of the cable. THIS IS A SAFETY RE-QUIREMENT. (Figure 1)

Figure 1Proper cable ferrule installation

TENSION ADJUSTMENTThis product is delivered with the maximum spring tension installed. Do not attempt to exceed the maxi-mum rating or operate below the minimum rating or spring damage will occur. Tension is increased by pushing in on the shaft with the 6 mm Allen wrench on the rear of the drum and then rotating the shaft clockwise and decreased by al-lowing the shaft to rotate counter clockwise. Determine the total load weight including all attachments us-ing a spring scale, and compare to the model’s capacity printed on the label. The optimum performance oc-curs when it falls between the mid and high side of the range. Refer to the Load Range Table to ascertain the number of rotations of the shaft required to load the unit from zero to the high side of the spring’s ca-pacity. This reference will indicate the maximum rotations necessary to unload the spring tension to zero. Rotating the shaft after all ten-sion is released will damage the spring.

Attach the load and secure a 6-mm Allen tool on the end of the shaft. Es-tablish a fi rm grip on the tool before pushing in on the shaft to facilitate

adjustment. The spring tension is immediately held in your grip when the shaft is pushed in. Push in on the shaft and rotate to either add or remove tension. Rotate in half turn increments and always insure shaft is fully out to prevent the shaft from rotating before releasing the tool to change grips. Repeat this procedure until the load is counter balanced. The rubber ball will fall away from the housing and the tool will start to fall. Add tension by reversing this process if auto-matic retraction is necessary. The upward spring tension required to retract the load must be over-come by the operator and may cause repetitive and cumulative stress injuries. Extend the load to allow the tension adjustment to pass completely through the spring.

FABRICATING A CABLE ASSEMBLY All parts required except the fer-rule may be reused from an old cable assembly or ordered individu-ally as needed. Refer to the parts’ list to determine the items which need to be ordered. The basic cable (007.335168) has a cable ferrule compressed on the load side of the cable for anchoring in the cable drum. Slide the rubber ball on the free end, and then attach the cable clamp 4.9 feet from the ferrule end. 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 locking trigger snap. The cable 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 in-stallation.

QUICK CHANGE CABLE PROCEDUREBefore attempting to change the ca-ble on the production line, prepare a new cable assembly that is exactly the length needed to fully load the

drum and to position the load where it needs to be. Extend the cable completely out of the drum with the load attached until the cable an-chor prevents further rotation of the drum. Allow the drum to rotate back-wards 3/4 inch until the tip of a small screwdriver can be inserted through both the housing and drum covers. Slowly release the cable and the spring tension will hold the screw-driver in place. Remove the load from the cable and push the cable up and out of its anchored position in the drum. ( Figure 2.) Remove the brass sleeve and pull the cable out of the drum from below the nozzle.

Pull the cable straight down through the nozzle and replace it with a new cable assembly. Install the new cable by pushing the ferrule end up through the drum slot and out through the side window. Reinstall the sleeve onto the ferrule and pull the cable down from below the noz-zle until the ferrule is fi rmly seated 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, ALLOWING THE LOAD TO FALL AND CAUSING POSSIBLE INJU-RY. Pull slightly downwards on the cable, remove the screwdriver and allow the load to retract. ATTACH THE CABLE FERRULE FLUSH, ONLY ON THE FREE END OF THE CABLE. (Fig. 1.)

DISASSEMBLY & ASSEMBLYTHE CABLE CLAMP AND BALL MUST BE AGAINST THE NOZZLE BEFORE ANY REPAIR OR SER-VICE PROCEDURE IS SAFE. IM-MEDIATELY MOVE THE CLAMP AND BALL UP TO THE NOZZLE AND TIGHTEN SECURELY BE-FORE PROCEEDING. AN UN-LOADED CABLE RACING INTO A BALANCER IS EXTREMELY DANGEROUS AND CAN CAUSE SEVERE INJURY.

Secure the shaft with a 6-mm Allen tool. Establish a fi rm grip on the tool before pushing in on the shaft and turning in a counter clockwise direc-tion to facilitate adjustment. Slowly allow the tension to wind backwards in half turn increments. Always in-sure shaft is fully out to prevent the shaft from rotating before releasing the tool to change grips. Repeat un-til the rubber ball falls away from the nozzle or the safety detent engages. (7228-3, 4, & 5) Remove the snap ring from the front side of the shaft.

Remove the housing cover, lift the drum out of the housing and re-move the cable. Remove the drum cover and attach vise grip pliers to

the outer edge of the spring and lift the spring out of the drum. The shaft will remain in the cable drum, unless the internal snap ring is removed.

REPLACING THE SPRINGPlace the housing on a fl at surface and insert the drum with shaft in-stalled. Insert the inner lip of the spring into the lip of the shaft and push the outer lip into the slot in the drum simultaneously. The outer lip faces left and must be pushed down until the entire spring rests fl ush on the lower ridges on the drum. Insert the safety detent clip on the bottom of the drum cover into the outer lip of the spring and attach the drum cov-er. (7228-3, 4 & 5.) Install the cable up through the nozzle and anchor in the drum. Wind the cable onto the drum counter clockwise until the rubber ball is against the nozzle. In-serting a small screwdriver between drum and housing will keep the drum from rotating and cable slip-ping off the drum inside the housing. Install the housing cover and snap ring. Load the spring with “X=” rota-tions indicated on the Load Range table by the reversing the proce-dure used to unload tension. Note: The capacity of the balancer can be changed from one range to another by replacing the spring. If modifi ed, replace the label or paint the hous-ing with the new capacity.

SAFETY INSPECTIONThe housing should be inspected for damage and replaced if the nozzle is worn. Insure that the safety latch functions properly. Inspect the safe-ty chain and shackle for wear and a secure connection. If the model has the new “Locking Safety Hanger,” verify that the latch is installed and functioning properly. The new “Lock-ing Safety Hanger” is installed with the screw lock moving down and se-curely tightened. Inspect the cable drum and cable anchor slot for dam-age and replace if appropriate.

Move the cable clamp and inspect the entire cable and replace if there

is any sign of wear. Verify that the trigger snap is working properly and that the cable ferrule is installed cor-rectly. Lubricate the trigger snap, the cable and all friction components with acid free grease. This will sig-nifi cantly improve their durability.

Documents

PARTS DESCRIPTION KROMER · KROMERTM “Zero Gravity” Tool Balancers 6720 North 16th Street • Omaha, NE 68112-3497 Call (402) 457-7444 888-811-3254 Fax (402) 451-6513 [email protected]