Cub Cadet 3000 Series Service Manual
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Cub Cadet 3000 Series Service Manual

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SERIES 3000
SERVICE MANUAL
770-10227
K&T Saw Shop 606-678-9623 or 606-561-4983

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Summary of Contents for Cub Cadet 3000 Series

  • Page 1 www.mymowerparts.com SERIES 3000 SERVICE MANUAL 770-10227 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 2 Hydraulic Valve Removal and Replacement ....................11 Engine Removal and Replacement.........................12 Transmission Removal and Installation ......................13 Transmission Inspection and Disassembly .....................14 Transmission Reassembly (Cast Iron Transmission Addendum)..............15 Neutral Control Adjustment ..........................16 3000 Series Electrical .............................17 BDU-21L Transmission ...........................18 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 3 www.mymowerparts.com K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 4 3000 Series Pre-Delivery Check List CUSTOMER NAME_____________________________________ MODEL NUMBER _________________________ CUSTOMER ADDRESS__________________________________ SERIAL NUMBER _________________________ CITY_______________________ STATE______ ZIP__________ TECHNICIAN ____________________________ ENGINE INFORMATION TRANSMISSION INFORMATION Engine Make __________________ Transmission make __________________ Model No. __________________ Model No. __________________ Serial No. __________________ Serial No.
  • Page 5 1999 Specifications Cub Cadet 1999 Specifications SERIES 3000 TRACTORS Features and General Specifications: • Hydrostatic Drive w/Cruise Control • Cast Iron Front Axle • Shaft Drive Transmission • 4.5 Gallon Fuel Tank • Shaft Drive Deck and Front Attachments •...
  • Page 6 1999 Specifications Cub Cadet 1999 Specifications (continued) Model Factory No. Attachments and Accessories 190-162-000 60" Poly Bed Liner (Fits All 17’s) (Tailgate Section Must Be Cut Out By Dealer 190-288-100 Hydraulic Front Angle Kit (Cannot Be Used w/353) 190-171-100...
  • Page 7 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 8 4. Secure the muffler shield with three sheet metal HEAT SHIELD screws. A heat shield has been installed on all 3000 series tractors for 1999. The heat shield prevents the NOTE: Use a long flat blade screwdriver through exhaust gases from browning the grass. Use kit #759- the air holes in the grill to tighten the sheet metal 3927.
  • Page 9 Steering on the cylinder shaft. See Service Advisory CC-364. Wheel Thinner Grooved Out Area Old Style Steering Wheel 3000 Series Lift Assembly Steering Wheel Thicker New Thicker Steering Wheel 2 - 2 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 10 Cub Cadet 3000 2 - 3 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 11 Cub Cadet 3000 2 - 4 K&T Saw Shop 606-678-9623 or 606-561-4983...
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  • Page 15 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 16 Cub Cadet 3000 Fender Assembly Removal and Reinstallation 1. Slide the seat back and remove the front two pan 6. Remove the hex bolt securing the differential lock torx head screws using a T30 torx. out pedal on the left side of the unit using a 9/16 socket.
  • Page 17 Cub Cadet 3000 12. Remove all four running board hex bolts from the 15. Raise the rear fender high enough to access the tractor using a 1/2” socket. See figure 5. hydraulic lift handle clamp. See figure 7. NOTE: There are two bolts fastening the running 16.
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  • Page 23 Cub Cadet 3000 4 - 6 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 24 Cub Cadet 3000 4 - 7 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 25 Cub Cadet 3000 4 - 8 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 26 Cub Cadet 3000 4 - 9 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 27 Cub Cadet 3000 4 - 10 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 28 Cub Cadet 3000 4 - 11 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 29 Cub Cadet 3000 4 - 12 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 30 Cub Cadet 3000 4 - 13 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 31 Cub Cadet 3000 4 - 14 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 32 Cub Cadet 3000 Removal and Replacement of the Power Steering Cylinder CAUTION: Slowly remove the hydraulic lines from the 5. Remove both of the hex head screws and the hex cylinder. Test for pressure in the lines before removal.
  • Page 33 Cub Cadet 3000 CAUTION ON THE NEXT STEP: There are “O” rings Cylinder Rod between the cylinder block and the fittings. Extreme Jam Nut care should be used to hold the fittings in place while Ball “O” Rings Ball...
  • Page 34 Cub Cadet 3000 Cub Cadet 3000 Series Char-Lynn 2 Series Steering Control The following information may be used in the inspec- It is recommended that the steering control be thor- tion and repair of Eaton’s Char-Lynn 2 series steering oughly cleaned before any repairs are attempted.
  • Page 35 Cub Cadet 3000 Remove the end cap from the gerotor assembly. Remove the gerotor assemblies outer ring. NOTE: The gerotor assembly may/may not remain intact during removal. Figure 4. Figure 6. Remove the o-ring seal from the gerotor assemblies outer ring.
  • Page 36 Cub Cadet 3000 Remove the gerotors inner star from the drive. Remove the o-ring seal from the wear plate. Figure 11. Figure 8. Remove the spacer. Remove the wear plate from the housing assembly. Figure 12. Figure 9. Remove the o-ring from the control housing.
  • Page 37 Cub Cadet 3000 The spool/sleeve assembly may be removed from the Using a small screwdriver or similar type tool, remove control valve housing in either the vertical or horizon- the cross pin from the spool/sleeve assembly. tal position. VERTICAL POSITION...
  • Page 38 Cub Cadet 3000 Carefully remove the spring retaining ring from the Turn the valve housing over and remove the two centering springs. bearing races and thrust bearing. Figure 19. Figure 17. Using the small screwdriver or similar tool, remove the Carefully remove the centering springs from the dust seal.
  • Page 39 Cub Cadet 3000 Again using a small screwdriver or similar tool, Shown here are both the relief valve check and check remove the quad ring seal from the valve housing. ball assemblies. The relief valve check assembly is optional.
  • Page 40 Cub Cadet 3000 Install the sleeve into the valve housing. After the seal is installed, turn the valve housing over and remove the sleeve, races and bearing. Figure 25. Figure 27. Using caution to retain the races, bearing and sleeve...
  • Page 41 Cub Cadet 3000 Shown here is the correct orientation of the Next install one set of the 3 curved centering springs spool/sleeve centering springs. Two sets of (3) each between the two flat pieces. curved springs in the center and (1) each flat piece on the outside.
  • Page 42 Cub Cadet 3000 Center the centering springs and install the spring Push the spool assembly into the sleeve until the cen- retaining ring over the springs. tering springs are firmly positioned into the notches located in the sleeve. Figure 33.
  • Page 43 Cub Cadet 3000 Supporting the valve housing in the upright position, Lubricate and install the o-ring seal into the groove lubricate and install the bearing races and thrust bear- located in the control valve housing. ing. NOTE: The thrust bearing must be installed between the two bearing races.
  • Page 44 Cub Cadet 3000 Lubricate and install the o-ring seal into the groove Lubricate and install both the gerotor star and outer located in the wear plate. ring. Install by aligning the splines of the star with the drive. After installation, rotate the gerotors outer ring to align with the housing cap screw holes.
  • Page 45 Cub Cadet 3000 Lubricate and install both the o-ring seal and seal ring Prior to the installation of the end cap, freely lubricate into the gerotor star. Install the o-ring in the groove the gerotor star seal ring. located in the star first and then the seal ring.
  • Page 46 Cub Cadet 3000 Install the end cap retaining cap screw and tighten in The steering control is now ready for test and installa- a crisscross sequence. Torque to 140-160 in. lbs. tion. Figure 52. Figure 49. Install the check ball or optional relief valve check as shown here.
  • Page 47 Cub Cadet 3000 6 - 14 K&T Saw Shop 606-678-9623 or 606-561-4983...
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  • Page 49 Cub Cadet 3000 6 - 16 K&T Saw Shop 606-678-9623 or 606-561-4983...
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  • Page 51 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 52 Cub Cadet 3000 Removal and Replacement for the Center Lift Cylinder CAUTION: Slowly remove the hydraulic lines from the 6. Remove both hydraulic connectors from the lift cylinder. Test for pressure in the lines before removal. cylinder using a 7/8” open end wrench.
  • Page 53 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 54 Cub Cadet 3000 Removal and Replacement of the Pump Adapter Prior to removing the pump adapter, it is necessary to remove the fender assembly. Bottom Lower Coupling Steering Sleeve 1. Remove the side panels and disconnect the Half Shaft Bearing spark plug wires.
  • Page 55 Cub Cadet 3000 9. Finger loosen the pump adapter nut until it is INSTALLATION OF THE NEW PUMP ADAPTER flush with the end of the hydro input shaft. 1. Clean the hydrostatic input shaft of any debris. 10. Place a 13/16 socket against the nut with the See figure 7.
  • Page 56 Cub Cadet 3000 6. Line up the drive shaft with the new pump 9. Tighten the hex bolts and shoulder nuts securing adapter. the pump adapter assembly, using a 7/16 wrench and a 7/16 socket. See figure 10. NOTE: If there is more than an 1/8” gap between...
  • Page 57 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 58 Cub Cadet 3000 BDU-21L-500 Auxiliary Pressure Test Prior to performing this test, it is necessary to remove 6. Install the pressure test kit into the unit with the the deck and fender assemblies. pressure gauge standing straight up. See figure 3 and 4.
  • Page 59 Cub Cadet 3000 13. Increase the throttle to full. Record the hydro If the pressure readings are not meeting the specifica- reading at the pressure gauge. The reading tions, the charge pump is faulty. should be between 200 PSI and 650 PSI. See If the pressure readings are meeting specifications, figure 5.
  • Page 60 Cub Cadet 3000 Hydrostatic Transmission Pressure Test Setup Bill of Materials 4. With tractor running, apply parking brake. • 2 - 3000 P.S.I. Hydraulic Gauges 5. Continue holding the brake. depress the forward • 1 - 200 P.S.I Hydraulic Gauge foot pedal until max.
  • Page 61 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 62 Cub Cadet 3000 Removal and Replacement of the Hydraulic Steering Pump Prior to removing the steering pump, it is necessary to 4. Raise the upper steering shaft. See figure 3. remove the fender assembly. 5. Remove the lower steering shaft from the hydraulic steering pump.
  • Page 63 “O” Rings Steering Main Pressure FIGURE 7. Refer to the 1998 Cub Cadet Technical Update Seminar manual for inspection and repair of the Char- Lynn 2 series Steering Control in Section 17. REASSEMBLE THE HYDRAULIC STEERING PUMP IN THE REVERSE ORDER.
  • Page 64 Cub Cadet 3000 Removal and Replacement of the Hydraulic Valve Prior to removing the hydraulic valve, it is necessary 7. Remove the side valve clamp that holds the inlet to remove the fender assembly. tube to the valve body using a 7/16 socket. See figure 3.
  • Page 65 Cub Cadet 3000 11. Inspect the “O” rings for damage. If damaged, replace. See figure 4. 12. Remove all the remaining hardware from the valve body using a 7/16 socket. “O” Rings FIGURE 4. 13. Remove the valve mounting brackets. See figure 5.

  • Page 66: Engine Removal And Replacement

    Cub Cadet 3000 Engine Removal and Replacement IMPORTANT: Use proper safety procedures when 8. Partially close the hood to allow access to the grill working on the tractor. fasteners. See figure 3. 1. Open the hood and remove the battery box cover.
  • Page 67 Cub Cadet 3000 14. Remove both the choke and the throttle cables. Ground to Heat Shield See figure 5. Spark Plug NOTE: use a marker and mark the holes and Boot and Wire cable alignment before removal. Solenoid Throttle...
  • Page 68 Cub Cadet 3000 21. Remove all four of the hex bolts securing the drive shaft to the engine flywheel using a 7/16 socket and extension. See figure 9. Hex Bolts Hex Bolts FIGURE 11. Drive 28. Slowly raise the engine and mounting plate from...
  • Page 69 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...

  • Page 70: Transmission Removal And Installation

    Cub Cadet 3000 Transmission Removal and Installation Prior to removing the transmission, it is necessary to remove the fender assembly. Screws 1. Loosen the fuel line clamp at the gas tank and slide it down the fuel line. 2. Remove the fuel line from the gas tank.
  • Page 71 Cub Cadet 3000 17. Brace the transmission. 20. Remove both transmission to frame “U” bolts using a 3/4" socket. See figure 7. 18. Remove all four of the front transmission support bracket to frame hex cap screws and hex flange NOTE: The “U”...

  • Page 72: Transmission Inspection And Disassembly

    Cub Cadet 3000 Transmission Inspection and Disassembly 1. Inspect the pump adapter to be certain that it is 4. Inspect the clearance between the hydro bypass turning the hydraulic input shaft. See figure 1. spring plate and the bypass valve on the hydro pump.
  • Page 73 Cub Cadet 3000 6. Remove both clamps from the hydro pickup tube 13. Remove the hydrostatic transmission from the using a 7/16 wrench on the upper hex screw and differential transmission and inspect the case a 3/8 wrench on the lower hex screw.
  • Page 74 Cub Cadet 3000 18. Remove the center hub lock nuts on the hub Washer Tap Screw Transmission assemblies using a 1 and 5/16” socket. See Plate Gasket figure 9. NOTE: The torque on the center hub nut is 180- 250 ft-lbs.

  • Page 75: Cub Cadet

    Cub Cadet 3000 34. Remove the input pinion gear assembly from the Bevel Output Shaft Gear case. See figure 15. Spur Gear Inner Bearing Block Outer Bearing Block Differential Lock Actuator Shaft Input Pinon FIGURE 12. Gear 32. Write down the shim orientations for both sides of FIGURE 15.
  • Page 76 Cub Cadet 3000 Transmission Reassembly 1. Assemble the differential gear assembly flat on a 15. Place the hydrostatic transmission assembly on work bench and in the correct sequence. See the differential case. figure 1. 16. Place the hydrostatic torque bracket on the hydrostatic transmission.
  • Page 77 Cub Cadet 3000 24. Install the output shaft assembly. See figure 3. 34. Install the remaining twelve- 3/4” hex washer screws that secure the transmission plate to the 25. Install the complete internal differential assembly differential housing. Do not tighten.
  • Page 78 3000 SERIES CAST IRON TRANSMISSION ADDENDUM K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 79 www.mymowerparts.com Cast Iron Transmission Disassembly Transmission Inspection and Disassembly Remove and set aside the oil drain plug using a 16mm socket. See Figure 2. Oil Drain Plug Figure 1 Figure 2 Inspection NOTE: The oil drain plug must be removed and set aside before disassembly, to allow the differ- Inspect the pump adapter to make certain it is ential assembly to be removed.
  • Page 80 www.mymowerparts.com Cast Iron Transmission Disassembly15 Remove the center hex lock nuts securing the Remove the hex screw and clamp securing the axle hubs to the axles using a 1-5/16” socket. hydraulic pickup tube to the charge pump using a See Figure 2. 7/16”...
  • Page 81 www.mymowerparts.com Cast Iron Transmission Disassembly1 Remove the hydraulic pickup tube and inspect Inspect and cap the input and output ports where for contamination. See Figure 6. the hydraulic pickup tube was removed. See Figure 8. Hydraulic Pickup Tube Inspect and cap the inlet ports Figure 6 Figure 8 Remove and replace the “O”...
  • Page 82 www.mymowerparts.com Cast Iron Transmission Disassembly11 Remove all four 5.5” hex bolts securing the Remove and replace the large “O” ring from the torque bracket, hydrostatic pump and long spac- transmission housing. See Figure 12. ers to the transmission housing using a 1/2" socket.
  • Page 83 www.mymowerparts.com Cast Iron Transmission Disassembly Remove both self tapping screws securing the brake assembly to the transmission housing NOTE: Lubricate the actuator pins before reas- using a 3/8” socket. See Figure 14. sembling. See Figure 16. Self Tapping Screws Actuator Pins Puck Plate Brake Pad Brake Assembly...
  • Page 84 www.mymowerparts.com Cast Iron Transmission Disassembly Remove all 14 hex bolts securing the left housing Pull on the differential lock actuator using a fish to the right housing using a 1/2" socket. See Fig- scale, and make certain the differential engages ure 18.
  • Page 85 www.mymowerparts.com Cast Iron Transmission Disassembly Remove the differential lock assembly and Slowly remove the output shaft, 54T bevel gear inspect for wear or damage. See Figure 22. and differential assembly together. See Figure Shim Washers Hex Cap Screw Actuator Arm 54T Bevel Gear Output shaft Differential...
  • Page 86 www.mymowerparts.com Cast Iron Transmission Disassembly Place the differential assembly in a the vice (ver- Remove both of the spiral retaining rings that tically) with the hex bolts facing up. See Figure secure the right axle side gear to the axle using a small flat-blade screw driver.
  • Page 87 www.mymowerparts.com Cast Iron Transmission Disassembly Disassemble the center differential assembly Remove the 14T side gear, differential lock hous- and inspect for wear or damage. See Figure 30. ing, thrust washer, comp spring and differential engagement collar from the left axle, and inspect for wear or damage.
  • Page 88 www.mymowerparts.com Cast Iron Transmission Disassembly Inspect the outer bearings for damage or wear. See Figure 34. Outer Seal Outer Bearing Figure 34 15A- 12 K&T Saw Shop 606-678-9623 or 606-561-4983...

  • Page 89: Neutral Control Adjustment

    Cub Cadet 3000 3000 Series Neutral Control Adjustment The following information will correct forward or rear- Hydrostatic Extension ward movement (creeping). Transmission 1. Drive the tractor for a few minutes to warm up the Access Hole hydrostatic transmission. 2. Raise the rear of the tractor off the ground.
  • Page 90 www.mymowerparts.com NOTES K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 91 www.mymowerparts.com Electrical Briggs & Stratton and Kawasaki Kohler 17 - 1 K&T Saw Shop 606-678-9623 or 606-561-4983...
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  • Page 133: Bdu-21L Transmission

    Cub Cadet 3000 The BDU-21L transmission offers an optional Implement (auxiliary) pump. The auxiliary circuit provides a rated flow of 1.5 gpm and 500 PSI operating pressure at a 3200 RPM pump speed. Fluid from the charge pump flows first to the implement control valve, then to the charge relief valve and charge check valves in the center section.

  • Page 134: Cub Cadet

    Cub Cadet 3000 18 - 2 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 135 Cub Cadet 3000 FLUIDS Fluids used in Cub Cadet 3000 Series tractors have been carefully selected. Only use Cub Cadet oil part no. 737-3055A for quarts or 737-3054A for gallons. SAFETY PRECAUTIONS Certain procedures may require the vehicle to be disabled (wheels raised off the ground, engine disconnected, etc.) in order to prevent possible injury...
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  • Page 137 Cub Cadet 3000 18 - 5 K&T Saw Shop 606-678-9623 or 606-561-4983...
  • Page 138 Cub Cadet 3000 MINOR REPAIR Carefully pull the seal out of the housing bore. A "hook" type tool may be used to grasp the seal and pull it out, or a slide hammer type puller may be used GENERAL INFORMATION to remove the seal.
  • Page 139 The was previously obtained from an authorized pistons should fit with very little side clearance in the representative of Cub Cadet. block bores, but must slide freely. Cleanliness is a primary means of assuring Remove the pump cylinder block spring and thrust satisfactory life on repaired units.
  • Page 140 Cub Cadet 3000 Remove the swashplate assembly and cradle RECONDITIONING AND REPLACEMENT OF bearings from the housing. PARTS After disassembly, all parts should be thoroughly NOTE: The cradle bearings in newer BDU-21L cleaned in a suitable solvent. transmissions are not removable from the housing. If damage is present, a new housing kit is necessary.
  • Page 141 Cub Cadet 3000 Install the thrust washer and pump cylinder block Install the two aligning pins, and install a new gasket spring onto the pump shaft. onto the housing. Install the springs piston washers and pistons into the Lubricate the running surfaces of the cylinder blocks cylinder block.
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