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DANA SPICER Torque-Hub S6B Assembly And Disassembly

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Torque-Hub
Assembly-Disassembly
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S6B

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Summary of Contents for DANA SPICER Torque-Hub S6B

  • Page 1 ™ Torque-Hub Assembly-Disassembly Manual...

  • Page 2: Introduction

    Fairfield Manufacturing Co. Inc., Lafayette, IN, is now a part of Dana Incorporated INTRODUCTION This manual is a step-by-step guide to assembly and disassembly designed for the customer or shop mechanic who is servicing or repairing a particular model of torque-hub final drive. (The model covered by this copy of the manual is specified on the manual cover) An identification number is enclosed in parentheses follows each part mentioned in this manual.
  • Page 3 to bring attention to the user of certain procedures or helpful hints that will aid in the disassembly and assembly steps.

  • Page 4: Roll And Leak Testing

    ROLL and LEAK TESTING Torque-Hub units should always be roll and leak tested before disassembly and after assembly to make sure that the unit’s gears, bearings and seals are working properly. The following information briefly outlines what to look for when performing these tests. The Roll Test: The purpose of a roll test is to determine if the unit’s gears are rotating freely and properly.

  • Page 5: Table Of Contents

    CONTENTS Introduction ......................... I Roll and Leak Testing ....................... II Tightening and Torquing Bolts .................. II Main Disassembly ...................... 1 First Stage Carrier Disassembly ................2 Second Stage Carrier Disassembly ................3 First Stage Carrier Assembly ................4 Second Stage Carrier Assembly ..............6 Hub/Spindle Assembly ....................

  • Page 6: Main Disassembly

    MAIN DISASSEMBLY MAIN DISASSEMBLY Remove thrust bearing carrier (10) around second stage 1. Remove pipe plug (15) from carrier (2). cover (6) and drain the oil from the unit. Remove thrust washer (14), thrust bearing (13), and thrust 2. Remove 24 bolts (16) from cover washer (12) from counterbore on the (6).
  • Page 7 HUB-SPINDLE DISASSEMBLY 11. Turn hub (1G) over onto its wide HUB-SPINDLE DISASSEMBLY end. Remove last pipe plug (1R) from seal boot (20). 1. Remove three pipe plugs (1R): one is in the bottom of spindle (1A), and 12. Remove seal boot (20) form end of two are in the flange of spindle.

  • Page 8: First Stage Carrier Disassembly

    DISASSEMBLY First Stage Carrier Disassembly Second Stage Carrier Disassembly 1. Drive dowel pin (3D) completely into 1. Drive dowel pin (2G) completely into planet shaft (3E). If pin is not driven planet shaft (2E). If pin is not driven completely into planet shaft, damage commpletely into planet...

  • Page 9: First Stage Carrier Assembly

    FIRST STAGE CARRIER SUB-ASSEMBLY Apply grease to the inside of one planet gear (3F). Line the inside of planet gear (3F) with 19 needle rollers (3C). Stand carrier housing (3A) on its side. Insert a planet shaft (3E) into one of the planet shaft holes in carrier housing (3A).

  • Page 10: Second Stage Carrier Assembly

    SECOND STAGE CARRIER SUB-ASSEMBLY Apply grease to the inside of one planet gear (2F). Line one half of planet gear (2F) with 18 needle bearings (2C). Place spacer (2D) on top of the needle bearing (2C). Line the remaining half of planet gear (2F) with 18 needle bearings (2C). Stand carrier housing (2A) on its side.
  • Page 11 HUB-SPINDLE SUB-ASSEMBLY NOTE: Make sure the cup sits square with the counterbore before pressing. 1. Set hub (1G) on work surface, wide end up. Using bearing cup pressing tool (T- 130717), press bearing cup (1E) into the counterbore in the wide end of hub (1G). NOTE: Make sure the cup sits square with the counterbore before pressing.
  • Page 12 HUB-SPINDLE SUB-ASSEMBLY 8. Turn hub (1G) over, onto its spindle. Place bearing cone (1F) down, onto spindle (1A) in hub (1G) and, using tool (T-146588), press bearing cone (1F) into hub. Place tanged washer (1H) over the end of spindle (1A). Place lockwasher (1J) over the end of spindle (1A).
  • Page 13 HUB-SPINDLE SUB-ASSEMBLY 14A. Check the initial rolling torque. Install a bolt into the bolt circle in the hub, put a torque wrench on the bolt in the hub, and, keeping the torque wrench tangent to the bolt circle, pull the torque wrench smoothly towards you. (See Diagram 1.) The initial rolling torque must fall in the range of 25-35 in.-lbs.
  • Page 14 HUB-SPINDLE SUB-ASSEMBLY 14B. Place a bolt in the hub’s bolt circle. Place a torque wrench on the bolt and pull the torque wrench smoothly toward you at approximately 3.5 R.P.M. Initial rolling torque should be 25-35 inch.-lbs. See Diagram 1 on page 11 for correct position of torque wrench.
  • Page 15 MAIN ASSEMBLY 1. Lower second stage carrier sub-assembly (2) into hub (1G). CAUTION: Beware sharp edges in the counterbore as “O” ring is installed. Grease and place “O” ring (5) into the counterbore of hub (1G). NOTE: The “O” ring can be made to fit the counterbore exactly by stretching it (if it is too small) or by pinching it together bit by bit (if it is too large) as it is palced into the counterbore.
  • Page 16 MAIN ASSEMBLY 7. Lower first stage carrier (3) into hub (1G). Grease and place one each of thrust washer (14), thrust bearing (13), and thrust washer (12), in that order, onto counterbore on the top of first stage carrier sub- assembly (3).

  • Page 17: Main Assembly

    MAIN ASSEMBLY DIAGRAM 2 NOTE: This is the most common pipe plug alignment, but alignments can vary. Consult an assembly print of your unit to determine correct timing. Place the 24 bolts (16) into their holes in cover (6) and tighten. Apply 35-45 ft.-lbs.
  • Page 18 MAIN ASSEMBLY 16. Apply a light coat of “Never-Seize” to three remaining pipe plugs (1R). Tighten two pipe plugs (1R) into the pipe plug holes on narrow flange of spindle (1A) and tighten other pipe plug (1R), into the pipe plug hole in the bottom of spindel. (See cross- sectional view if confused.) Roll test the unit in both clockwise and counterclockwise directions.
  • Page 19 TOOL LIST The following specialized tools are used in the assembly of this unit. The tool diagrams included in this mannual are intended for the customer who may wish to have a tool made. All tools exist as one piece and must be made from mild steel. All dimensions are given in inches.
  • Page 20 TOOL LIST T-130717 ASSEMBLY PRESSING TOOL FOR BEARING CUP (1E)
  • Page 21 TOOL LIST T-156792 ASSEMBLY PRESSING TOOL FOR CUP (1C)
  • Page 22 TOOL LIST T-156766 AN_18 LOCKNUT WRENCH...
  • Page 23 TOOL LIST T-156799 ASSEMBLY PRESSING TOOL FOR SEAL (1B)
  • Page 24 TOOL LIST T-146588 ASSEMBLY PRESSING TOOL FOR BEARING CONE (1F)

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