Dixon ZTR 4515B Reparaturanleitung

310-2400/2600 Integrated Zero-Turn Transaxle Service and Repair Manual BLN-51134 July, 2011

310-2400/2600 IZT® 8 TECHNICAL SPECIFICATIONS Overall Transaxle Reduction 19.2:1 Input Speeds Maximum: 3000 RPM Minimum: 1800 RPM Tire Diamet

310-2400/2600 IZT® 9 SECTION 2. SAFETY This symbol points out important safety instructions which, if not followed, could endanger the personal saf

310-2400/2600 IZT® 10 UNIT OPERATING HOT SECTION 3. TROUBLESHOOTING WARNING Do not attempt any servicing or adjust-ments with the engine ru

310-2400/2600 IZT® 11 SECTION 4. SERVICE AND MAINTENANCE NOTE: Any servicing dealer attempting a warranty repair must have prior approval before co

310-2400/2600 IZT® 12 FLUIDS The fluids used in Hydro-Gear® products have been carefully selected, and only equivalent, or better products should be

310-2400/2600 IZT® 13 PURGING PROCEDURES Due to the effects air has on efficiency in hydrostatic drive applications, it is critical that it be purge

310-2400/2600 IZT® 14 RETURN TO NEUTRAL SETTING The return to neutral mechanism on the trans-mission is designed to set the directional con-trol int

310-2400/2600 IZT® 15 COG BRAKE MAINTENANCE 1. Check the brake arm teeth for damage or excessive wear. Replace if necessary. 2. Check for excessiv

310-2400/2600 IZT® 16 SECTION 5. REPAIR HOW TO USE THIS SECTION Each subassembly illustrated in this section is illustrated by an exploded view showi

310-2400/2600 IZT® 17 Operation U.S. Torque Metric Torque Item Description Wheel Hub Nut 200-295 ft-lbs 271-400 Nm 108 Nut, Hex 3/

Table of Contents Section Page Foreword ...

310-2400/2600 IZT® 18 BACK COVER Refer to Figure 8. DISASSEMBLY 1. Remove the eight screws (50) from the back cover (13), and discard. 2. Remove t

310-2400/2600 IZT® 19 BRAKES (Cog Brake) Refer to Figure 9. DISASSEMBLY 1. Remove the external retaining ring (63). 2. Remove the brake bolt (123)

310-2400/2600 IZT® 20 BRAKES (Disc Brake 310-2400 Only) Refer to Figure 10. DISASSEMBLY 1. Remove the cotter pin (128) and slotted hex nut (133). Di

310-2400/2600 IZT® 21 BRAKE SHAFT & BEVEL GEAR Refer to Figure 11. DISASSEMBLY 1. Remove the back cover. See page 18. 2. Remove the brake. See

310-2400/2600 IZT® 22 AXLE SHAFT & SPUR GEAR Refer to Figure 12. DISASSEMBLY 1. Remove the back cover. See page 18. 2. Remove the brake. See pa

310-2400/2600 IZT® 23 AXLE SHAFT & SPUR GEAR Figure 12. Axle Shaft & Spur Gear Assembly 108 56 1 68 60 62 64 53 82 65 66 68 107 81

310-2400/2600 IZT® 24 LOWER HOUSING & FILTER Refer to Figure 13. DISASSEMBLY 310-2400 1. Remove the ten screws (50) holding the lower housing (2

310-2400/2600 IZT® 25 LOWER HOUSING & FILTER Refer to Figure 14. DISASSEMBLY 310-2600 1. Place an orientation mark on the charge cover. 2. Remo

310-2400/2600 IZT® 26 MOTOR SHAFT & BEVEL GEAR Refer to Figure 15. DISASSEMBLY 1. Remove the back cover. See page 18. 2. Remove the brake. See

310-2400/2600 IZT® 27 CENTER SECTION, CYLINDER BLOCKS AND BYPASS Refer to Figure 16. DISASSEMBLY 1. Remove the back cover. See page 18. 2. Remove t

310-2400/2600 IZT® 1 FOREWORD Headquartered in Sullivan, Illinois, Hydro-Gear® is a world leader in the design, manu-facture, and service of quality

310-2400/2600 IZT® 28 CENTER SECTION, CYLINDER BLOCKS AND BYPASS 8. Install the two pins (43). 9. Install the by-pass plate (38) into the center s

310-2400/2600 IZT® 29 INPUT SHAFT & TRUNNION ARM Refer to Figure 17. DISASSEMBLY 1. Remove the back cover. See page 18. 2. Remove th

310-2400/2600 IZT® 30 INPUT SHAFT & TRUNNION ARM 12 31 30 33 8 6 5 4 7 Figure 17. Input Shaft and Trunnion Arm Assembly 9 1 Note: Cradle bearings

310-2400/2600 IZT® 31 TRANSAXLE INSTALLATION Use the following procedure to complete the installation of the transaxle on the vehicle. 1. Install and

310-2400/2600 IZT® 32 SEALANT APPLICATION NOTE: Prior to applying the new sealant, the old sealant must be removed from all surfaces. A small bead o

310-2400/2600 IZT® 33 For more technical assistance contact your Hydro-Gear Central Service Distributor. Part No. BLN-51888 DATE: APRIL 2003 DESCRIPT

310-2400/2600 IZT® 34 310-2400 EXPLODED VIEW 42491208654736357634141371937351911912212156711231217621520921635192072081968606264825381566566681071086

310-2400/2600 IZT® 35 310-2400 ITEMS LIST No. DESCRIPTION No. DESCRIPTION 1 Kit, Housing-Main Housing, Main Cradle Bearing Lip Seal Trunnion Bus

310-2400/2600 IZT® 36 310-2600 EXPLODED VIEW 2 86 46 87 85 10X 50 78 3X 44 86 84 83 150 78 77 76 748 43 3 21 54 25 26 27 51 38 43 39 24 12 14 15 T

310-2400/2600 IZT® 37 310-2600 ITEMS LIST No. DESCRIPTION No. DESCRIPTION 1 Kit, Housing-Main Housing, Main Cradle Bearing Trunnion Bushing Lip

310-2400/2600 IZT® 2 INTRODUCTION The purpose of this manual is to provide information useful in servicing the Hydro-Gear® Integrated Zero Turn (IZ

310-2400/2600 IZT® 38 GLOSSARY OF TERMS Axial Piston: Type of design for hydraulic motors and pumps in which the pistons are arranged parallel with t

310-2400/2600 IZT® 39 GLOSSARY OF TERMS Hydrostatic Transaxle: A multi-component assembly including a gear case and a hydrostatic transmission. Hyd

310-2400/2600 IZT® 40 NOTES

310-2400/2600 IZT® 41 NOTES

© 2011 Hydro-Gear Rev. P4 Printed in U.S.A.

310-2400/2600 IZT® 3 310-2400 310-2600 Figure 1. 310-2400/2600 Hydraulic Flow Schematics orororororor

310-2400/2600 IZT® 4 TRANSAXLE HOUSING FILTER RESERVOIR CHECK VALVE CHECK VALVE BYPASS ACTUATOR CYLINDER BLOCK ASSEMBLY FIXED SWASHPLATE MOTOR SHAFT

310-2400/2600 IZT® 5 HYDRAULIC SCHEMATIC Figure 2 provides an illustration of the hydrau-lic oil circuits. The oil supply for the hydraulic system o

310-2400/2600 IZT® 6 EXTERNAL FEATURES 310-2400L Back Cover Bypass Actuator Control Arm Assembly Back Cover Axle Shaft Hub Assembly Fill Port Cog Bra

310-2400/2600 IZT® 7 EXTERNAL FEATURES 310-2600R Fill Port Input Shaft Lower Cover Seal Plug Cog Brake Assembly “Only” Bypass Control Ar