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DANA Spicer Torque-Hub C017A1, Service Manual, Page: 9 / 44

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DANA Spicer Torque-Hub C017A1 Service Manual Download Page 9

9 

 

Tightening and Torquing Bolts 

If an air impact wrench is used to tighten bolts, extreme care should 
be taken to ensure the bolts are not tightened beyond their specified 
torque. The following steps describe how to tighten and torque bolts 
or socket head cap screws in a bolt circle. 

 

 

1) 

Tighten (but do not torque) bolt 

“A” until snug. 

2) 

Go to the opposite side of the bolt circle and tighten bolt 

“B” until 

equally snug. 

3) 

Crisscross around the bolt circle and tighten the remaining bolts. 

4) 

Use a torque wrench to apply the specified torque to bolt 

“A”. 

5) 

Using the same sequence, crisscross around the bolt circle and 
apply an equal torque to the remaining bolts. 

Summary of Contents for Spicer Torque-Hub C017A1

Page 1: ...Rev 6 6 16 Torque Hub Planetary Final Drive C017A1 Service Manual ...

Page 2: ...ocument Fairfield Manufacturing Co Inc assumes no liability with respect to the use of the documentation described herein or for any act or omission of Fairfield Manufacturing Co Inc concerning this documentation Torque Hub is a registered trademark of Fairfield Manufacturing Co Inc Features and specifications are subject to change without notice ...

Page 3: ... Lubrication Information 10 Park Brake Disassembly 12 Main Disassembly 13 Service Brake Disassembly 16 Cover Disassembly 18 Input Carrier Disassembly 19 Input Carrier Subassembly 22 Cover Subassembly 23 Main Assembly 24 Service Brake Subassembly 25 Park Brake Subassembly 31 Assembly Drawing 32 Parts List 33 Service Kits 34 Assembly Tools 35 Contact Information 43 ...

Page 4: ...Assembly Tools section Users should familiarize themselves with the procedures for brake test roll and leak test as well as bolt tightening and torquing found on the following pages before starting any repairs Standard safety practices should be followed during the disassembly and assembly procedures described Safety glasses and safety shoes should be worn and heavy heat resistant gloves should be...

Page 5: ...re to the Park port on the spindle until the brake slips Record the pressure The just release pressure should be between 150 181 psi Increase the pressure to 198 psi The gearbox should roll freely Increase the pressure in this port to 1500psi and hold for one minute If the brake does not leak or lose pressure the unit passed the test If the brake loses pressure the brake must be repaired See proce...

Page 6: ...lbs torque to the input while slowly increasing the pressure to the Service port on the spindle until the brake stops the hub Increase the pressure in this port to 2 100 psi and hold for one minute If the brake does not leak or lose pressure the unit passed the test If the brake loses pressure the brake must be repaired See procedures in this manual for dis assembly and assembly procedures NOTE FA...

Page 7: ... and onto spindle Install an SAE J1926 1 6 9 16 18 O ring fitting into the Park port on the spindle Release the Park brake by applying 1500 psi to this port Apply constant rotational force to the input of the gearbox If more drag is felt in the gears only at certain points then the gears are not rolling consistently and easily and should be examined for improper installation or defects Some gear p...

Page 8: ...he gearbox has been pressurized and allowed to equalize Leaks will most likely occur at the pipe plugs the main seal or wherever O rings or gaskets are located The exact location of a leak can usually be detected by brushing a soap and water solution around the main seal and where the O rings or gaskets meet on the exterior of the unit and then checking for air bubbles If a leak is detected in a s...

Page 9: ...nd torque bolts or socket head cap screws in a bolt circle 1 Tighten but do not torque bolt A until snug 2 Go to the opposite side of the bolt circle and tighten bolt B until equally snug 3 Crisscross around the bolt circle and tighten the remainingbolts 4 Use a torque wrench to apply the specified torque to bolt A 5 Using the same sequence crisscross around the bolt circle and apply an equal torq...

Page 10: ...ange should be made after the first 50 hours of operation Subsequent oil changes should be made at 1 000 hour intervals or annually whichever comes first Oil temperatures should be not higher than 200 F for continuous operation and no higher than 225 F for intermittent operation For special applications high horsepower high speeds or wide temperature changes please consult Fairfield Oil Fill Level...

Page 11: ...11 DISASSEMBLY ...

Page 12: ...7A this may be done by applying low air pressure to the PARK pressure port on the Spindle 1A 3 Remove the Quad rings 17G and 17J from the grooves in the Spindle 1A bore 4 Remove the Brake Stators 17C and Brake Rotors 17B 5 Remove the M6 1 0x20 Bolts 17M from the Piston 17A slowly and evenly to relieve the spring pressure Remove the Pressure Plate 17L and Springs 17D 6 Remove the Coupling 11 with t...

Page 13: ... Oil Plugs 6H and drain the oil Notice the condition of the oil and the volume 2 Remove the Bolts 15 from the housing 3 Remove the Sun Gear 6 4 Remove the Input Carrier Sub Assembly 5 Remove the Sun Gear 10H Continued on Next Page ...

Page 14: ... the Shims 13 from the Spindle 1A Note the shims can be very sharp 9 Remove the Socket Head Screws 8 10 Note The Ring Gear 19L will need to be rotated to line up the scallops in the brake flange with the Planet Gears then remove the Ring Gear 11 Remove and discard the O ring 19H from the groove in the Housing 1G Continued on Next Page ...

Page 15: ...he studs straddle the planet gear Lift the Planet Gear 1H from the carrier window The Washers 1K will come with the Planet Gear 1H 14 Remove the Washers 1K from the Planet Gear 1H 15 Slide the Needle Rollers 1R and Spacer Ring 1J from the bore of the Planet Gear 1H 16 Repeat steps 12 15 for the remaining Planet Gears 1H 17 Remove the Thrust Washer 4 from the center of the spindle Continued on Next...

Page 16: ...e the Rotors 19C 19N and Stators 19D CAUTION Safety glasses must be worn during this next step 19 Remove the Retaining Ring 19E There is spring pressure against the retaining ring 20 Remove the Spacer 19G and the Wave Spring 19F Continued on Next Page ...

Page 17: ...e Seal boot 1Z is to be replaced 23 Remove the Piston 19B and Seal Ring 19A out of the housing If necessary remove the Seal ring 19A from the Piston 19B Remove Quad Ring 19J discard 24 Use a slide hammers seal puller and remove the Seal 1B 25 Remove Quad Rings 19K from the grooves in the Seal Ring 19A and Piston 19B discard Note If the main bearings need to be replaced contact fairfield service Th...

Page 18: ... Retaining Ring 2B form the Cover 2 2 Use a 750 hex driver and remove the Cover Cap 2A Threaded 3 Remove O ring 2C from the groove in the Cover Cap 2A Discard 4 Remove the O ring 21 from Cover 2 pilot Discard 5 Remove the Thrust Washer 2D from the Cover 2 This concludes the Cover Disassembly ...

Page 19: ...driven from the Carrier 10A 2 Remove the Planet Gear 10F with the Needle Rollers 10C and Thrust Washers 10B 3 Remove the Thrust Washers 10B from each end of the Planet Gear 10F 4 Remove the Needle Rollers 10C from the bore of the gear 5 Repeat steps 1 4 for the remaining planet gears This concludes the Input Carrier Disassembly ...

Page 20: ...20 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 21: ...21 ASSEMBLY ...

Page 22: ...lanet window up 5 Place one planet gear needle bearing washer assembly into the planet window Insert a Planet Shaft 10D into the carrier wall and into the Needle Rollers 10C Insure that the small hole in the Planet Shaft 10D is aligned with the radial hole in the Carrier 10A wall 6 Drive a Roll Pin 10E into the radial hole of the carrier into the rollpin hole of the planet shaft Do not hit the gea...

Page 23: ... 21 and assemble it onto cover pilot diameter 3 Lightly grease the O ring 2C and assemble it into the groove on the Cover Cap 2A 4 Thread the cover cap into the cover and torque to 200 250 ft lbs CAUTION Safety glasses must be worn during this next step 5 Install the Retaining Ring 2B This concludes the Cover Subassembly ...

Page 24: ...Spindle 1A with tool T226232 until it bottoms on the bearing cone Be careful to not damage the Quad ring 19K or scratch the sealing surfaces 6 Install the Housing 1G onto the Spindle 1A Do not allow the lips of the Seal 1B to be damaged while lowering the Housing 1G 7 Grease and install Quad ring 19K into the groove in the Brake Piston 19B 8 Grease and install Quad ring 19J into the inside groove ...

Page 25: ...age Use tool T226235 and bolt it to the end of the spindle with three M12 x 1 75 x 55mm socket head cap screws Torque to 80 ft lbs 12 Plug the BLEED port on the spindle with a 7 16 20 bleed plug or O ring port plug Pressurize the SERVICE port on the spindle to 12 psi air and hold for one minute If the pressure holds the piston seals have passed If there is leakage disassembly inspect and rebuild 1...

Page 26: ...h counter bores of the Planet Gear 1H 18 Rotate the hub until the Studs 22 straddle the planet window 19 Slide the planet gear and washer assembly into the spindle planet gear window with the planet gear part number towards the end of the spindle away from the output brake 20 Install the Planet Shaft 1N thru the spindle planet shaft holes into the planet gear assembly bore Locate the machined flat...

Page 27: ...ated to line up the scallops in the brake flange with the Planet Gears 24 The scallops in the Housing 19L must be aligned with the planet gears for proper assembly and aligned with the studs and threaded holes in Housing 19L 25 Install the Socket head Screws 8 through the Housing 19L and into the Housing 1G and torque to 69 79 ft lbs Continued on Next Page ...

Page 28: ...olts 8 and 9 are clean and dry 29 Install the Bolts 8 and 9 two different lengths with LOCTITE 263 into the appropriate holes and torque to 69 79 ft lbs in 25 ft lbs increments rolling the bearings between torque increases Insure that the bolts do not turn after rolling the bearing at the final torque Note If the main bearings need to be replaced contact fairfield service Continued on Next Page ...

Page 29: ...un Gear 10H into mesh with planet gears 31 Install the Input Carrier Sub Assembly onto the Sun Gear 10H 32 Install the Sun Gear 6 into the output sun gear and in mesh with the input planet gears Continued on Next Page ...

Page 30: ...l the Cover 2 into the Hub 19L There is no timing requirement 34 Install Bolts 15 with Loctite 243 and torque to 23 27 ft lbs 35 Install the Oil Plugs 6H and torque to 33 36 ft lbs This concludes the Main Assembly ...

Page 31: ...s possible 6 Grease the piston seal surfaces and push the Piston 17A into the spindle bore in the quad rings 7 Install the Springs 17D into the spring pockets of the Piston 17A 8 Place the Pressure Plate 17L onto the Springs 17D aligning the holes with the holes in the Piston 17A Install the M6 1 0x20 Bolts 17M through the Pressure Plate 17L into the Piston 17A Tighten the bolts evenly drawing the...

Page 32: ...32 Assembly Drawing ...

Page 33: ...2B 1 RETAINING RING 2C 1 O RING 2D 1 THRUST WASHER 4 1 THRUST SPACER 5 1 RING GEAR 6 1 SUN GEAR 6H 5 O RING PLUG 7 1 RING GEAR 8 8 SOCKET HEAD CAP SCREW 9 9 SOCKET HEAD CAP SCREW 10A 1 CARRIER 10B 6 TANGED THRUST WASHER 10C 42 NEEDLE BEARING 10D 3 PLANET SHAFT 10E 3 ROLL PIN 10F 3 PLANET GEAR 10H 1 SUN GEAR 11 1 COUPLING 13 1 SHIM 15 14 BOLT 17A 1 BRAKE PISTON 17B 4 ROTOR 17C 5 STATOR 17D 27 SPRIN...

Page 34: ...USING 19N 1 ROTOR 20B 1 RETAINING RING 20C 1 RETAINING RING 21 1 O RING 22 10 STUD 25 2 O RING PLUG Service Kits SERVICE BRAKE SEAL KIT AM9024144B PARK BRAKE SEAL KIT AM9024146B PARK BRAKE SPRING KIT AM9024146C MAIN SEAL KIT AM9013399 OUTPUT PLANET BEARING KIT AMN179008763P INPUT PLANET BEARING KIT AMN179008724 DISCONNECT PLUG KIT AMN17900401 SUN GEAR KIT 30 1 AMN17100109 SUN GEAR KIT 26 1 AMN1710...

Page 35: ...35 Assembly Tools T226197 SEAL PRESSING TOOL ...

Page 36: ...36 T226232 PISTON SEAL RING TOOL ...

Page 37: ...37 T 226229 RETAINING RING PRESSING TOOL ...

Page 38: ...38 T 226235 SERVICE BRAKE TEST TOOL ...

Page 39: ...39 T 221667 CARRIER CRADLE TOOL ...

Page 40: ...40 T 226231 1 ROLLCHECK AND LEAK TEST TOOL ...

Page 41: ...41 T 226231 2 ROLLCHECK AND LEAK TEST TOOL ...

Page 42: ...42 T 226231 3 ROLLCHECK AND LEAK TEST TOOL ...

Page 43: ...e can provide integrated solutions for mechanical hydraulic or electrically driven systems Fairfield is part of AG a global technology company with over 16 000 employees in 36 countries Together with our sister firm Graziano Transmission Fairfield forms Drive Systems Our combined technologies enable us to provide fully integrated drive systems from transmissions to final drives for both on and off...

Page 44: ...Dana Incorporated Off Highway Drive and Motion Technologies 2400 Sagamore Parkway South P O Box 7940 Lafayette IN 47903 USA 765 772 4000 www grazianofairfield com ...

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