Fairmont 48755 Service Manual Download Page 1 | Manualshive

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99924650 REV 4

© 2006 Greenlee Textron Inc.

11/06

H8508

Impact Wrench

Model 48755 (Serial Code FWN)

Model 48760 (Serial Code FWP)

SERVICE MANUAL

Read

and

understand

all of the instructions and

safety information in this manual before operating

or servicing this tool.

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2
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Summary of Contents for 48755

Page 1: ...extron Inc 11 06 H8508 Impact Wrench Model 48755 Serial Code FWN Model 48760 Serial Code FWP SERVICE MANUAL Read and understand all of the instructions and safety information in this manual before operating or servicing this tool ...

Page 2: ...anuals are available upon request at no charge Safety Safety is essential in the use and maintenance of Fairmont tools and equipment This manual and any markings on the tool provide information for avoiding hazards and unsafe practices related to the use of this tool Observe all of the safety information provided Other Publications Operation Manual Publication 99930269 Specifications and Parts Man...

Page 3: ...sult in severe injury or death SAFETY ALERT SYMBOL IMPORTANT SAFETY INFORMATION Before operating this tool see the safety information and operating instructions in the Operation Manual Wear eye protection when operating or servicing this tool Failure to wear eye protection could result in serious eye injury from flying debris or hydraulic oil Skin injection hazard Oil under pressure easily punctur...

Page 4: ... this warning could result in severe injury or death Do not reverse hydraulic flow Operation with hydraulic flow reversed can cause tool malfunc tion Connect the supply pressure hose and return tank hose to the proper tool ports Failure to observe this warning could result in severe injury or death Procedure for disconnecting hydraulic hoses fittings or components 1 Move the flow lever on the hydr...

Page 5: ...r 45 thrust bearing 43 and thrust washers 44 from hammer case cavity Motor 1 Remove cap screws 16 and remove motor cap 6 from handle 1 Remove gasket 15 Remove dowel pins 14 2 Pull idler shaft 13 with gear 10 from handle Remove gear from idler shaft Remove the drive pin 12 and retaining clip 11 from idler shaft 3 Remove retaining ring 11 gear 10 and Woodruff key 9 from drive shaft 8 Push drive shaf...

Page 6: ...d in 5 Thrust bearing and thrust washers Spin the bear ing against the washers If bearing does not spin smoothly replace the bearing and washers 6 Flow control cartridge Inspect for cracks grooves or nicks Replace the entire cartridge if it shows wear or damage Disassembly cont d Flow Control Cartridge 1 Remove the retaining ring 66 Remove the flow control cartridge from the handle 2 Remove the O ...

Page 7: ...ver sharp surfaces use a rolling motion and be careful not to damage the O ring Wherever the assembly results in metal to metal contact coat the surfaces with hydraulic fluid or O ring lubricant Motor 1 Use an O ring tool to install a new O ring 4 from the back end of the tool 1 2 Lubricate drive shaft 8 and slide it into the tool from the back end 3 Install Woodruff key 9 onto the drive shaft Ali...

Page 8: ... cap 55 5 Apply Loctite primer to threads of cap Apply Loctite primer to threads of handle at cap interface ensuring threads are free of grease and other contaminants prior to application 6 Slide the hammer case cap assembly 55 56 over the anvil and using a wrench on the flats of the cap screw the assembly into the handle Torque to 80 85 ft lb Quick Change Chuck 48755 Only 1 Slide thrust ring lock...

Page 9: ...9 2988 USA 815 397 7070 H8508 Impact Wrench Illustrations 48755 and 48760 Impact Wrench Side View 40 42 39 41 1 37 35 29 5 4 15 3 14 10 6 9 12 11 11 7 13 27 28 33 34 31 32 45 44 44 43 51 55 52 54 56 62 53 54 8 50 49 46 47 47 48 61 36 68 69 70 67 10 63 65 64 66 ...

Page 10: ...rench Greenlee A Textron Company 10 4455 Boeing Dr Rockford IL 61109 2988 USA 815 397 7070 Illustrations cont d Reversing Spool 20 24 22 23 19 21 26 Torque item 24 to 23 ft lb 60 25 30 35 29 34 31 32 33 Trigger Spool ...

Page 11: ...Greenlee A Textron Company 11 4455 Boeing Dr Rockford IL 61109 2988 USA 815 397 7070 H8508 Impact Wrench 17 18 16 Torque to 10 to 11 Nm 95 to 100 in lb C O Illustrations cont d Motor Cap View ...

Page 12: ... x 1 09 2 22 48621 50486217 Plug 2 23 50765 90507657 Screw set 5 16 24 x 250 socket 2 24 48380 50483803 Cap 2 25 42050 F023449 O ring 500 x 625 x 062 70 1 26 48889 50488899 O ring 625 x 750 x 062 1 27 48539 F011743 O ring 612 x 818 x 103 1 28 43312 F021451 Backup ring 640 x 812 x 048 1 29 48696 50486969 Spool trigger 1 30 42047 F023379 O ring 250 x 375 x 062 90 2 31 48697 50486977 Super Spool 1 32...

Page 13: ... 138338 Flow control cartridge includes 64 and 65 1 64 41491 F015261 O ring 500 x 625 x 062 70 1 65 41627 F017078 O ring 437 x 562 x 062 70 1 66 41600 F016737 Retaining ring 687 1 67 41094 138311 Screw adjustable torque 1 68 42729 L080005 O ring 250 x 375 x 062 1 69 41843 F021471 Backup ring single turn 265 x 371 x 048 1 70 42053 F023467 Pin roll 078 x 875 1 For 48755 and 48760 UPC No 78 3310 Part...

Page 14: ... 1 41538 F015428 Impact socket 7 8 1 41539 F015430 Impact socket 1 1 41540 F015431 Impact socket 1 1 16 1 41515 F015321 Adapter 7 16 quick change chuck to 1 2 square drive 1 41784 F020538 Adapter 1 2 female square socket to 5 8 quick change female hex socket 1 49314 49314 Adapter hex 1 63 USA 800 435 0786 Fax 800 451 2632 815 397 7070 Fax 815 397 1865 Canada 800 435 0786 Fax 800 524 2853 Internati...

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