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Rev. 6/14 

 

S/N: 1004 AND ABOVE  

PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS. 

MAINTENANCE

 

 

 

WARNING

EXCESSIVE CONTACT WITH HYDRAULIC OIL AND LUBRICANTS SHOULD BE AVOIDED. 

 

WARNING:

 

MAINTENANCE PERSONNEL 

MUST

 

READ AND UNDERSTAND ALL WARNINGS AND CAUTIONS. 

 

WARNING: 

DISPOSE OF HYDRAULIC OIL IN ACCORDANCE WITH ALL ENVIRONMENTAL LAWS AND  

 

REGULATIONS APPLICABLE TO YOUR AREA. 

 

WARNING

DISCONNECT TOOL FROM ITS POWER SOURCE BEFORE DISASSEMBLY. 

 

WARNING

WHEN

 

TIGHTENING OR LOOSENING HYDRAULIC HOSES, USE A 9/16” WRENCH TO HOLD THE 

HYDRAULIC FITTING TO PREVENT THE STEEL TUBE FROM TWISTING. TWISTING THE STEEL 
TUBE CAN CAUSE PREMATURE FAILURE AT WELDED JOINTS.  

 

 

 

WARNING: 

 

BE SURE POWERUNIT IS DISCONNECTED BEFORE CLEANING, OR WHEN REPLACING WORN OR 

 

 

 

DAMAGED COMPONENTS. SEVERE PERSONAL INJURY MAY OCCUR IF POWER SOURCE IS NOT 

 

 

 

DISCONNECTED.                   

 

 

The performance of any tool depends upon good maintenance practices. Following these minimal requirements for ser-
vice and care will extend the life of your tool. 
 

*Only use a hydraulic power source equipped with relief valves and  pressures set within specified lim
  its.  Consult Powerunit Manual for procedure to set PULL and RETURN pressures. 
*Keep hydraulic system free of dirt.  Avoid letting couplers contact a dirty floor. 
*Do not use as a hammer to force fasteners into holes or otherwise abuse tool. 
*Proper care by operators is necessary in maintaining full productivity and reducing down time. 

*

Check  tool,  all  hoses  and  all  couplings  daily  for  damage  or  air/hydraulic  leaks.  Tighten  or  replace  (if 

    necessary). 

(See hydraulic thread preparation pg.5)

 

 

 

 

HYDRAULIC THREAD PREPARATION 
 

WARNING

WHEN

 

TIGHTENING OR LOOSENING HYDRAULIC HOSES, USE A 9/16” WRENCH TO HOLD THE 

HYDRAULIC FITTING TO PREVENT THE STEEL TUBE FROM TWISTING. TWISTING THE STEEL 
TUBE CAN CAUSE PREMATURE FAILURE AT WELDED JOINTS.  

 

 

IMPORTANT:

 

Be sure to use thread sealant on all hydraulic fittings, Loctite® 30534 or similar Teflon® infused pipe  

 

dope is recommended. 

CAUTION:

 

Teflon tape is an excellent thread sealer, however, if it is not  

 

properly  applied, pieces of Teflon may enter the hydraulic system and cause malfunction or damage. 

 

Use 1 1/2  wraps of tape on each thread. Cut off all loose tape ends. Tighten until fitting feels snug and 

 

then go 1/2 to a full turn past  that point. 

CAUTION:

 Over tightening can easily distort the threads. 

 

 

Summary of Contents for GB7720

Page 1: ...26 1500 Clinton Twp MI 48038 586 226 1505 Fax e mail solutions gagebilt com www gagebilt com GAGE BILT MADE IN U S A GAGE BILT TOOLS ARE AVAILABLE WORLDWIDE E MAIL US FOR DISTRIBUTOR NEAR YOU S N 1004 AND ABOVE PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS ...

Page 2: ...bar Hyd Power Source GB910 and GB940 Powerunit or equivalent Hydraulic Oil See power unit for Hydraulic oil specifications Setting Stroke 1 900 48 26 mm Rated Pull Load 21 000 lbs 93 41 kN TABLE OF CONTENTS Description Page Warnings 3 Description and Operation 4 Maintenance and Hydraulic Thread Preparation 5 Parts Lists 6 7 Trouble Shooting and Overhaul 8 Nose Assembly Selection Chart 9 ...

Page 3: ...ls Severe personal injury may result WARNING It is required to use hearing protection A test was carried out in a simulated work environment where the background level was 73 2 dB A In this condition the max level was 81 5 dB A Therefore it is required where prolonged use hearing protection be used WARNING Do not use beyond the design intent WARNING Tool must be maintained in a safe working condit...

Page 4: ...th 24 hoses and electric cord kit complete with quick disconnects BT20 7720 58 NOSE ASSEMBLY MUST BE ORDERED SEPARATELY OPERATION WARNING ENSURE AIR HOSE IS SECURELY CONNECTED TO AVOID POSSIBLE HOSE WHIPPING WARNING OPERATOR MUST READ AND UNDERSTAND ALL WARNINGS AND CAUTIONS WARNING IT IS REQUIRED THAT EYE PROTECTION AND HEARING PROTECTION BE WORN DURING OPERATION WARNING DO NOT PULL RIVET IN THE ...

Page 5: ...essures set within specified lim its Consult Powerunit Manual for procedure to set PULL and RETURN pressures Keep hydraulic system free of dirt Avoid letting couplers contact a dirty floor Do not use as a hammer to force fasteners into holes or otherwise abuse tool Proper care by operators is necessary in maintaining full productivity and reducing down time Check tool all hoses and all couplings d...

Page 6: ...R SERIAL NUMBERS GB7720 PARTS LIST 2 21 24 24 25 26 27 28 23 3 4 5 6 7 8 9 8 10 11 12 13 12 9 8 16 17 19 22 20 750150 WRENCH SOLD SEPARATELY 18 1 13 12 15 14 1 1 APPLY REMOVABLE LOCKTITE 2 MATCH SERRATED FACES ON WASHER FOR CORRECT INSTALLATION 2 3 TORQUE TO 40FT LBS 3 ...

Page 7: ...3 13 404479 O Ring 2 14 762217 Rear Piston 1 15 762018 Retainer Piston 1 16 A 1139 Retaining Ring 1 17 762220 Cap 1 18 A 1536 Wedge Lock Washer 2 19 240122 Actuator 1 20 401781 Set Screw 1 21 762032 Socket Head Cap Screw 2 22 263021 Strain Relief 1 23 750255 Handle 1 24 505034 Hydraulic Hose 2 25 585047 Hydraulic Coupler Male 1 26 585038 Hydraulic Coupler Female 1 27 585034 Control Cord Assembly 1...

Page 8: ...t fastener OVERHAUL WARNING DISCONNECT TOOL FROM ITS POWER SOURCE BEFORE PERFORMING OVERHAUL If a tool is performing poorly or leaking a complete overhaul may be necessary Service Kit 772001 contains a com plete set of o rings back up rings and screws Wrench 750150 sold separately is recommended for complete tool overhaul Perform overhaul in a clean well lit area using care not to scratch or nick ...

Page 9: ...R 401736 SET SCREW 401920 SET SCREW 3 12018 ANVIL ASSEMBLY 32012 PULLER USING DIAL CALIPERS CHECK PULLER AS SHOWN A NEW PULLER WILL CHECK 261 262 INCHES A WORN PULLER WILL CHECK 250 INCHES OR WILL BEGIN TO STRIP FASTENERS APPLY LOCTITE ANTI SEIZE OR SOME OTHER FORM OF LUBRICANT TO OUTSIDE DIAMETER OF PULLER AS SHOWN TO KEEP FROM WEARING AGAINST THE ANVIL BT20 7720 58 ...

Page 10: ... is to exceed the invoice value of said goods Under no circumstances will the seller be liable for incidental or consequential damages or for damages incurred by the buyer or subsequent user in repairing or replacing defective goods or if the goods covered by this warranty are reworked or subjected to any type of additional processing This warranty is void if Seller is not notified in writing of a...

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