EB Series Balancer Service Manual
Contents
1. as an accessory item Special cables can be offered with specific overhang or unique adjustments Contact factory RATCHET LOCK not automatic safety lock EBxxxxR models come with ratchet lock The ratchet lock can engage in 4 inch increments During every 4 inches of travel is a zone of 2 inches where it will lock The other 2 travel will not lock To engage pull cable down to desired height then slowly allow it to retract If it doesn t catch pull out a little more to get into the 2 locking zone and allow to retract The clicking noise can clue you when it is likely to engage To disengage pull cable down a couple inches and lock will release If ratchet lock is not required ratchet lock components must be removed See spring replacement instructions nn ETS SM113201C Page 2 of 5 Aero Motive Company Jan 03 AUTOMATIC LOCK A WARNING Never remove spring from drum and spring assembly Replacement springs are sealed for safety Hazards or unsafe practices COULD result in severe personal injury or death NOTE If tension is removed well below rated range of the balancer during spring adjustment lock will engage It will be necessary to apply more tension to release the lock unless cable is jammed from side pulling lf a spring should break automatic lock will engage to prevent drum from turning Lock will disengage after new spring assembly is installed and reel is retensioned SERVICE Do not disassemble balancer2. without reducing all spring tension first See Spring A CAUTION Tension Adjustment Also do not adjust mainspring tension until tool and attachments are suspended from balancer Hazards or unsafe practices COULD result in minor personal injury or product or property damage TOOL REPLACEMENT When replacing tool and attachments make sure cable is fully retracted or that drum lock lever is engaged Arrow points to manual drum lock lever Lift and allow pin to slide into housing to lock drum Pull on cable to make sure pin is fully engaged before removing tool To disengage pull out and set lever in up position as shown DRUM amp SPRING ASSEMBLY REPLACEMENT Remove balancer from service Remove all spring tension from balancer by turning worm gear counter clockwise Remove screws in cover one screw in cable guide and rear case Remove four screws holding spring pocket to drum _ To prevent serious injury death or property damage never remove spring from spring WARNING pockets Replacement springs are sealed for safety NOTE Drop stop must be held out to release mainspring assembly Install replacement mainspring in drum by aligning auto stop windows Reassemble screws and rear case in reverse order NOTE Cable must be fully wound onto drum before attaching rear case CABLE REPLACEMENT NOTE If cable is jammed in housing cable can only be replaced by removing all tension and disassembling balancer e Pull t
3. EB Series Balancer Service Manual Aero Motive Company Ww A Woodhead Industries Inc Subsidiary IMPORTANT SAFETY INFORMATION Please read this manual carefully and follow its instructions Improper use or failure to follow these instructions could result in serious injury death or property damage Operators should be instructed in the safe and proper use and maintenance of this product Keep this manual for future reference All reference numbers are located on page 5 The following safety precautions call attention to potentially dangerous conditions A DANGER Immediate hazards which WILL result in severe personal injury or death A WARNING Hazards or unsafe practices which COULD result in severe personal injury or death Hazards or unsafe practices which COULD result in minor personal injury or product or CAUTION property damage INSTALLATION Main support device must have break strength exceeding 6 times weight of load Hazards or unsafe practices COULD result in severe personal injury or death A WARNING MAIN SUPPORT CORRECT WRONG Balancer directly Balancer not directly Install the main support device directly over work over work area over work area area See illustration If balancer needs to be Secondary support Secondary support pulled from side to side a swinging jib and or attached to attached to same support moving trolley may be required Attach balancer separate support to main support with shackle an
4. attached make sure the retaining latch on hook is back to closed position SPRING TENSION ADJUSTMENT Do NOT over tension balancer main spring This will reduce cable travel and spring life A CAUTION Hazards or unsafe practices COULD result in minor personal injury or product or property damage NOTE If cable won t pull out when reducing spring tension increase tension until drop stop disengages Cable may also not pull out due to side pulling as shown in Main Support section Observe following before making spring tension adjustments e Tool and all accessories are attached to hook e All balancers come from factory pre set at highest tension e Tool will lower if the weight of tool exceeds tension adjustment of balancer mainspring e If cable stop is up against cable guide prior to adjustment there is too much tension on balancer mainspring To increase spring tension worm gear shaft in direction as shown on the case Repeat process until desired tension is achieved CG Gh To decrease spring tension turn worm gear shaft in direction as shown on the case Repeat process until desired tension is achieved NOTE The tensioning worm gear must be turned about 20 times for 1 full turn on the mainshaft CABLE STOP ADJUSTMENT Adjusting cable stop is not recommended due to reduction in active travel distance and difficulty If additional cable extension is required extension cable assemblies are offered
5. d shackle pin Secure shackle pin with nut and cotter pin If upper Bullard hook option lock hook gate after installation Cable rubs on cable guide amp NOTE Mounting balancer in wrong configuration i Load with cable pulling against guide can cause hangs premature cable wear and cable to jam inside straight balancer SECONDARY SUPPORT CHAIN A secondary safety cable or chain is to be attached to all balancers mounted overhead to A DANGER prevent balancer from falling Immediate hazards WILL result in severe personal injury or death A hole has been provided at side of housing to permit installation of secondary support chain All balancers mounted over head must have a secondary support chain to protect personnel in case of structure or mounting component failure nnn TS SM113201C Page 1 of 5 Aero Motive Company Jan 03 Attach one end of secondary support chain or cable to secondary support point shackle on balancer Attach Safety other end of secondary support chain or cable to a support Chain component other than that which supports balancer Chain or cable should be as short as possible allowing balancer to drop no more than 6 to 12 inches if primary connection is released See Illustration A secondary support is offered as an accessory item gt ADJUSTMENT TOOL ATTACHMENT Lift complete tool including any hose cable fittings and attachments up to tool clip After tool is
6. ing Lock Bullard Hook nT SM113201C Page 4 of 5 Aero Motive Company Jan 03 Reference Number Aero Motive Company wW A Woodhead Industries Inc Subsidiary PO Box 2678 Kalamazoo MI 49003 2678 Part Number C03500253 C03500258 01235P0008 M04350012 M08710006 M23560034 M15120003 C00400201 M26830003 00751P0022 00376P0005 C03500253 H41220111 H41220112 H41220113 H41220114 M25360212 M04840002 C60400128 M04600001 00376P0005 1109800001 1106000000 M04350011 00126P0050 00228P0011 H16510016 M28850024 01240P0007 00151P0070 00228P0012 00576P0030 3129400000 00229P0010 3164300000 3129500000 M65720002 C03500231 M16300006 M67310002 C03500251 H13120015 H13120020 H13120016 H13120021 M70780009 00053P0201 C00400100 H16510013 4963900000 00580P0080 M83010023 269 337 7700 800 999 8559 FAX 800 333 6119 www aeromotive com techhel SM113201C aeromotive com Qty KR ape a mm om naja 2 Ge Neja Na n na S ee naja na nan nana N _ nja anan Woodhead Connectivity LTD wW A Woodhead Industries Inc Subsidiary Factory No 9 Rassau Industrial Estate Ebbw Vale Gwent NP23 5SD United Kingdom 44 1495 356300 FAX 44 1495 356301 sales wdhd co uk Description M6 x 16 Pan head screw M6 x 30 Pan head screw Clevis pin Case rear Ratchet lever Ratchet shaft Extension spring Groove pin Mainshaft Woodruff key Bearing M6 x 16 Pan head Spring assembly EB25xxx Red s
7. ool down to full cable extension Cable anchor should be inline with housing window e Lock drum by pulling on manual lock lever and allowing pin to slide into housing to lock drum Pull on cable to make sure pin is fully engaged before proceeding e Remove tool from hook e Through housing window insert a screwdriver under the cable and lift up cable anchor e Loosen set screw and remove cable A WARNING To prevent serious injury death or property damage do not release drum lock lever without installing load on hook Otherwise cable and hook will retract rapidly Te __ ___ __ __ __ ___ ____ __ SM113201C Page 3 of 5 Aero Motive Company Jan 03 e Install new cable up through cable guide Pull cable swaged end out of housing window and install into cable anchor Tighten setscrew e Push anchor into housing attach load on hook and disengage manual drum lock lever PARTS REPLACEMENT NOTE When ordering replacement parts always include the balancer model number and serial number All parts shown on parts list are replaceable in the field without special tools MAINTENANCE INSPECTION The balancer is designed to require little maintenance Periodically check cable tool clip swivel and hanger for wear Replace all worn parts immediately The balancer is lifetime lubricated at the factory No additional lubrication is required REPLACEMENT PARTS Option swing Lock Bullard Hook Standard Option Rigid Eye Hook Sw
8. pring color code Spring assembly EB35xxx White Spring assembly EB45xxx amp EB48xxx Blue Spring assembly EB60xxxx Orange Auto stop shaft Drum Compression spring Auto stop Bearing Mainshaft gear Bearing Case front Washer Cotter pin Shackle shaft assembly Incl item 47 EBxxx0x Hex head cap screw drilled EBxxx0x Shackle body EBxxx0x Hex nut EBxxx0x Cotter pin EBxxx0x Retaining ring Lever manual drum lock Roll pin Spring manual drum lock Shaft manual drum lock Guide plate M5 x 12 Pan head Worm gear Cable guide M6 x 12 Pan head Cable assembly standard 2 0 m Cable assembly short 1 5 m Cable assembly Bullard 2 0 m EBxx00x EBxxS0Ox EBxx03x SND Cable assembly Bullard short 1 5 m EBxxS3x Cable anchor 10 24 Set screw Groove pin Upper Bullard hook assembly EBxxx3x Safety chain not shown Snap ring for ratchet option See Reference Number 5 above Thrust washer included with item 25 Woodhead Asia PTE LTD Woodhead Canada LTD wW A Woodhead Industries Inc Subsidiary 1090 Brevik Place Mississauga Ontario L4W 3Y5 Canada 905 624 1079 FAX 905 624 9151 www woodhead ca wW A Woodhead Industries Inc Subsidiary No 4 Toh Tuck Link Level 3 Mezzanine Markono Logisitics Bldg Singapore 596226 65 6 261 6533 FAX 65 6 261 3588 sales wasia com sg Page 5 of 5 Aero Motive Company Jan 03
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