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Revision History Revision Date -- 2007 A 02/2018 Description Initial Issue. Added revision history. © THE TORO COMPANY 2018 This document and all information contained herein is the sole property of The Toro Company (and/or its affiliated companies). No intellectual property rights are granted by the delivery of this document or the disclosure of its content.
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Part No. 07155SL (Rev. A) Service Manual ProCoreR 864/1298 Preface The purpose of this publication is to provide the service technician with information for troubleshooting, testing and repair of major systems and components on the ProCore 864 and 1298 aerators. REFER TO THE OPERATOR’S MANUALS FOR OPERATING, MAINTENANCE AND ADJUSTMENT INSTRUCTIONS. Space is provided in Chapter 2 of this book to insert the Operator’s Manuals and Parts Catalogs for your machine.
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Table Of Contents Chapter 2 − Product Records and Maintenance Product Records . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equivalents and Conversions . . . . . . . . . . . . . . . . Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . 2−1 2−1 2−2 2−3 Chapter 3 − Chassis Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . 3 − 2 Product Records and Maintenance Safety Instructions . . . . . .
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Chapter 1 Safety Safety Table of Contents SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . While Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance and Service . . . . . . . . . . . . . . . . . . . . SAFETY AND INSTRUCTION DECALS . . . . . . . . . .
Safety Instructions The ProCore 864 and 1298 are designed and tested to offer safe service when operated and maintained properly. Although hazard control and accident prevention partially are dependent upon the design and configuration of the machine, these factors are also dependent upon the awareness, concern and proper training of the personnel involved in the operation, transport, maintenance and storage of the machine. Improper use or maintenance of the machine can result in injury or death.
1. Operator should be on the tractor when starting the engine and when operating the aerator. Stay away from the aerator coring head when it is engaged. 2. Before starting the engine on the tractor: A. Apply the parking brake. B. Make sure traction lever or transmission is in neutral and PTO is disengaged. C. Refer to Tractor Operator’s Manual for safe starting procedures. 3. Do not run tractor engine in a confined area without adequate ventilation. Exhaust fumes are hazardous and could possibly be deadly.
Safety and Instruction Decals Numerous safety and instruction decals are affixed to the ProCore 864 and 1298. If any decal becomes illegible or damaged, install a new decal. Part numbers for replacement decals are listed in your Parts Catalog. Order replacement decals from your Authorized Toro Distributor.
Chapter 2 Product Records and Maintenance Table of Contents 1 1 2 2 2 3 3 Product Records and Maintenance PRODUCT RECORDS . . . . . . . . . . . . . . . . . . . . . . . . . MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EQUIVALENTS AND CONVERSIONS . . . . . . . . . . . Decimal and Millimeter Equivalents . . . . . . . . . . . . U.S. to Metric Conversions . . . . . . . . . . . . . . . . . . . TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . Fastener Identification . . . .
Equivalents and Conversions 0.
Torque Specifications These Torque Specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in this Service Manual. The following factors shall be considered when applying torque: cleanliness of the fastener, use of a thread sealant (e.g.
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series) Thread Size Grade 1, 5 & 8 with Thin Height Nuts SAE Grade 1 Bolts, Screws, Studs & Sems with Regular Height Nuts (SAE J995 Grade 2 or Stronger Nuts) in−lb in−lb N−cm 10 + 2 13 + 2 147 + 23 # 6 − 32 UNC # 6 − 40 UNF # 8 − 32 UNC 13 + 2 25 + 5 # 10 − 24 UNC 30 + 5 SAE Grade 8 Bolts, Screws, Studs & Sems with Regular Height Nuts (SAE J995 Grade 5 or Stronger Nuts) in−lb N−cm in−lb N−cm 15 + 2 170 + 20 23 + 2 260 + 20
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners) Class 8.8 Bolts, Screws and Studs with Regular Height Nuts (Class 8 or Stronger Nuts) Class 10.9 Bolts, Screws and Studs with Regular Height Nuts (Class 10 or Stronger Nuts) M5 X 0.8 57 + 5 in−lb 640 + 60 N−cm 78 + 7 in−lb 885 + 80 N−cm M6 X 1.0 96 + 9 in−lb 1018 + 100 N−cm 133 + 13 in−lb 1500 + 150 N−cm M8 X 1.25 19 + 2 ft−lb 26 + 3 N−m 27 + 2 ft−lb 36 + 3 N−m M10 X 1.
Other Torque Specifications SAE Grade 8 Steel Set Screws Wheel Bolts and Lug Nuts Recommended Torque Thread Size Recommended Torque** Thread Size Square Head Hex Socket 1/4 − 20 UNC 140 + 20 in−lb 73 + 12 in−lb 5/16 − 18 UNC 215 + 35 in−lb 145 + 20 in−lb 3/8 − 16 UNC 35 + 10 ft−lb 18 + 3 ft−lb 1/2 − 13 UNC 75 + 15 ft−lb 50 + 10 ft−lb 7/16 − 20 UNF Grade 5 65 + 10 ft−lb 88 + 14 N−m 1/2 − 20 UNF Grade 5 80 + 10 ft−lb 108 + 14 N−m M12 X 1.25 Class 8.
Chapter 3 Chassis Table of Contents Chassis SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . . 2 Roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Turf Guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Front Covers (ProCore 864) . . . . . . . . . . . . . . . . . . 6 Front Covers (ProCore 1298) . . . . . . . . . . . . . . . . . 8 Hitch Frame (ProCore 1298) . . . . . . . . . . . . . . . . .
Service and Repairs Roller PROCORE 864 SHOWN 14 10 5 ANTISEIZE LUBRICANT 2 12 3 7 1 11 7 4 8 2 FRONT 9 6 RIGHT 5 13 10 ANTISEIZE LUBRICANT Figure 1 1. 2. 3. 4. 5. Roller Flange bearing (2 used) Cap screw (2 used per bearing) Lock nut (2 used per bearing) Scraper arm (2 used) Chassis 6. 7. 8. 9. 10. Carriage screw (2 used per arm) Flange nut Roller scraper Compression spring Grease fitting Page 3 − 2 11. 12. 13. 14.
Roller Removal (Fig. 1) Roller Installation (Fig. 1) 1. Position aerator on a firm, level surface with aerator attached to tractor. Disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. Support aerator to prevent it from moving. 1. Clean roller shaft ends and apply antiseize lubricant to shaft ends. Slide bearings onto roller shafts. Do not tighten set screws at this time. 2. Chock roller to prevent it from moving. CAUTION 3.
Turf Guards 2 PROCORE 864 SHOWN 1 3 4 6 5 7 23 20 17 8 21 16 17 16 19 17 1 9 11 16 14 2 12 18 13 15 14 10 14 22 FRONT 24 16 17 RIGHT Figure 2 1. 2. 3. 4. 5. 6. 7. 8. Lock nut Thrust washer Spring bracket Screw (2 used per bracket) Flat washer Spring rod sleeve Compression spring Spring rod Chassis 9. 10. 11. 12. 13. 14. 15. 16. Jam nut Spring tube Cap screw Flange nut Carriage screw Flange nut Turf guard clamp Flange bushing Page 3 − 4 17. 18. 19. 20. 21. 22. 23. 24.
Removal (Fig. 2) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. NOTE: On ProCore 864 machines, there is one (1) thrust washer on each side of the turf guard. On ProCore 1298 machines, there are two (2) thrust washers on each side of turf guard (Fig. 3). 4. Place thrust washer(s) between each side of turf guard and frame. A.
Front Covers (ProCore 864) FRONT 4 11 RIGHT 5 14 10 9 4 8 6 11 3 1 16 8 5 15 4 5 4 18 6 17 5 12 20 4 8 6 5 4 7 2 13 19 Figure 5 1. 2. 3. 4. 5. 6. 7. Front cover RH pulley shield LH pulley shield Flange head screw Flat washer Iso mount Flat washer Chassis 8. 9. 10. 11. 12. 13. 14. Tinnerman nut Front cover support (3 used) Carriage screw (2 used per support) Flange nut Side shield (2 used) Screw (2 used) LH shield support Page 3 − 6 15. 16. 17. 18. 19. 20.
Removal (Fig. 5) Installation (Fig. 5) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 1. Make sure that tinnerman nuts (item 8) are properly positioned to frame. Also, make sure that iso mounts (item 6) are placed in cover holes. 2. Remove rear hood. 2. Position front cover to aerator frame and secure with removed fasteners. Attach PTO shield to front cover with removed fasteners. 3.
Front Covers (ProCore 1298) 9 11 10 6 5 21 14 16 20 1 4 3 19 11 13 7 15 4 5 6 12 8 5 6 4 5 17 18 4 FRONT RIGHT 2 Figure 6 1. 2. 3. 4. 5. 6. 7. Front cover (RH shown) Pulley shield (RH shown) Yoke cover Flange head screw Flat washer Iso mount Screw (2 used) Chassis 8. 9. 10. 11. 12. 13. 14. Tinnerman nut Front cover support (2 used) Carriage screw (4 used) Flange nut (8 used) Side shield Flat washer (2 used) Hitch frame Page 3 − 8 15. 16. 17. 18. 19. 20. 21.
Removal (Fig. 6) Installation (Fig. 6) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 1. Make sure that tinnerman nuts (item 8) are properly positioned to machine. Also, make sure that iso mounts are placed in cover holes. 2. Remove rear hood. 2. Position cover to aerator frame and secure with removed fasteners. 3.
Hitch Frame (ProCore 1298) 13 8 12 7 15 11 9 9 10 14 6 1 5 FRONT 16 RIGHT 4 17 2 3 Figure 7 1. 2. 3. 4. 5. 6. Hitch frame Lynch pin (2 used) Link pin (2 used) Washer (2 used) Hex nut (2 used) Grease fitting (2 used) Chassis 7. 8. 9. 10. 11. 12. Pad (2 used) Flange head screw (4 used per pad) Lynch pin (2 used) Clevis pin Flange nut (4 used per pad) RH subframe Page 3 − 10 13. 14. 15. 16. 17.
Removal (Fig. 7) 1. Position aerator on a firm, level surface and disconnect aerator from tractor. 2. Support subframes, coring frames and hitch frame assemblies to prevent them from falling or shifting unexpectedly. 3. Remove front covers (see Front Covers (ProCore 1298) Removal in this section). 3. Install gearbox to hitch frame (see Gearbox Installation in the Service and Repairs section of Chapter 4 − Coring Head). 4.
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Chapter 4 Coring Head Table of Contents ProCore 864/1298 Page 4 − 1 Coring Head SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 4 ProCore 864 Coring Head . . . . . . . . . . . . . . . . . . . . 4 ProCore 1298 Coring Head . . . . . . . . . . . . . . . . . . . 6 Coring Head Adjustments . . . . . . . . . . . . . . . . . . . . 8 SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications Item Description Gearbox Lubricant Capacity Coring Head GL−5 API, SAE 80W−90 gear lube 56 US fl. oz. (1.
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General Information ProCore 864 Coring Head 8 5 4 7 3 1 6 2 Figure 1 1. 2. 3. Driven pulley #1 stomper arm #8 stomper arm Coring Head 4. 5. 6. Bearing housing (4 used) Crankarm (2, 4, 6) (4 used) Crankarm (3, 5) (3 used) Page 4 − 4 7. 8.
The coring head of the ProCore 864 consists of a frame, a coring crankshaft assembly, turf holders, tine holders and aerating tines. The crankshaft assembly operates eight (8) stomper arms with rotolink assemblies to provide vertical tine motion. The coring head frame pivots to allow aerating depth control. Drive for the coring head comes from the tow tractor PTO. A gearbox on the ProCore is turned by a driveshaft connected to the tractor PTO.
ProCore 1298 Coring Head 5 8 4 9 1 6 2 7 6 5 3 Figure 2 1. 2. 3. Driven pulley #1 stomper arm #6 stomper arm Coring Head 4. 5. 6. Bearing housing (3 used) Crankarm (#2 and #4) Crankarm (#3 and #5) Page 4 − 6 7. 8. 9.
The ProCore 1298 is comprised of two (2) independent coring heads connected with a pivoting subframe system. Each of the coring heads includes a coring crankshaft assembly, turf holders, tine holders and aerating tines. The crankshaft assembly operates six (6) stomper arms with rotolink assemblies to provide vertical tine motion. The coring head frame pivots to allow aerating depth control. Drive for the dual coring heads comes from the tow tractor PTO.
Coring Head Adjustments See Operator’s Manual for adjustment procedures for the coring head on the ProCore 864 and 1298. CAUTION Never work on the coring head with the tow tractor PTO engaged or engine running. Always disengage the PTO, stop tractor engine, remove key from the ignition switch and wait for all machine movement to stop before performing any service to coring head components.
Special Tools Compression Spring Tool Use to remove and install the coring head compression springs. Obtain these items locally. 2 3 NOTE: The ProCore 864 uses two (2) compression springs for its single coring frame. The ProCore 1298 uses one (1) compression spring for each of its dual coring frames. 5” 1 5” 20” Figure 4 Coring Head 1. Threaded rod (1/2” or 5/8” diameter) 2. Nut (2 used) 3. Flat washer (2 used) Coring Head Drive Pulley Tool Use to remove the coring head drive pulley.
Service and Repairs Rotolink Damper Assemblies FRONT RIGHT 6 5 13 9 8 16 7 8 9 12 15 11 8 4 10 2 3 8 14 2 11 10 150 to 170 ft−lb (204 to 230 N−m) LOCTITE #242 1 Figure 6 1. 2. 3. 4. 5. 6. Rotolink damper Stud (2 used per rotolink) Bumper (2 used per rotolink) Standoff (4 used per rotolink) Hardened D washer Flange nut (2 used per rotolink) 7. 8. 9. 10. 11. Cap screw Ball bearing Damper link Lock nut Cap screw 12. 13. 14. 15. 16.
Disassembly (Fig. 6) Assembly (Fig. 6) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 1. If studs (item 2) were removed from rotolink damper (item 1), apply Loctite #242 (or equivalent) to threads of studs. Thread stud fully into damper. 2. Remove rotolink components as needed using Figure 6 as a guide. 2.
Stomper Arms FRONT RIGHT 210 to 230 ft−lb (285 to 311 N−m) 9 1 2 1 3 2 4 5 12 3 3 6 3 6 7 8 ANTISEIZE LUBRICANT 10 5 4 210 to 230 ft−lb (285 to 311 N−m) 11 2 PROCORE 1298 STOMPER ARMS #1 AND #2 SHOWN 1 Figure 7 1. 2. 3. 4. Cap screw Flat washer Ball bearing (2 used per arm) Retaining ring 5. 6. 7. 8. 9. 10. 11. 12. Bearing spacer Stomper arm Crankshaft driven pulley Bearing housing assembly NOTE: All stomper arms used on ProCore 864 and 1298 aerators are identical.
Removal (Fig. 7) 3 4 2 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 2. Remove rear hood. 3. For stomper arm that is to be removed, remove two (2) flange nuts and hardened D washers that secure rotolink damper to coring head frame (Fig. 9) (see Rotolink Damper Assemblies in this section).
7. If necessary, remove tines and tine holders from stomper arm (see Operator’s Manual). 150 to 170 ft−lb (204 to 230 N−m) 1 8. Remove rotolink damper components from stomper arm as needed (see Rotolink Damper Assemblies in this section). 2 3 4 Installation (Fig. 7 and 11) 1. If bearings were removed from stomper arm, install retaining ring into groove in upper bore of stomper arm. Make sure that retaining ring is properly seated in groove.
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Coring Crankshaft Bearing Housings (ProCore 864) 70 to 80 ft−lb (95 to 108 N−m) 14 FRONT 13 18 RIGHT 2 3 4 5 3 210 to 230 ft−lb (285 to 311 N−m) 10 11 1 13 1 2 12 25 3 24 20 16 6 23 15 21 7 16 9 8 7 17 10 210 to 230 ft−lb (285 to 311 N−m) 4 5 22 ANTISEIZE LUBRICANT 21 23 6 19 2 1 24 25 210 to 230 ft−lb (285 to 311 N−m) PROCORE 864 STOMPER ARMS #3 AND #4 SHOWN Figure 12 1. 2. 3. 4. 5. 6. 7. 8. 9.
Removal (Fig. 12) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 1 2. Remove rear hood. 3 2 3. If bearing housing for #1 and #2 stomper arms is to be removed, remove coring head drive belt (see Coring Head Drive Belt Removal in this section). Figure 13 WARNING 1. Crankshaft driven pulley 2.
2. If counterweight was removed from driven pulley, apply Loctite #242 (or equivalent) to threads of flange head screws and secure counterweight to pulley. 1 3. Apply antiseize lubricant liberally to crankarm splines and journals. 3 3 4. Install crankarms into bearing housing. Make sure that crankarm journals are positioned 180o from each other. 5. Install cap screw (item 1) and flat washer (item 2) to retain crankarms. Do not fully tighten cap screw. 6.
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Coring Crankshaft Bearing Housings (ProCore 1298) 14 70 to 80 ft−lb (95 to 108 N−m) 13 FRONT RIGHT 210 to 230 ft−lb (285 to 311 N−m) 17 1 2 1 3 2 18 12 13 4 11 5 3 15 6 ANTISEIZE LUBRICANT 210 to 230 ft−lb (285 to 311 N−m) 3 7 6 8 9 3 7 1 ANTISEIZE LUBRICANT 10 4 5 PROCORE 1298 STOMPER ARMS #1 AND #2 SHOWN 16 2 Figure 17 1. 2. 3. 4. 5. 6. Cap screw Flat washer Ball bearing (2 used per arm) Retaining ring Bearing spacer Stomper arm 7. 8. 9. 10. 11. 12.
Removal (Fig. 17) 1 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 2. Remove rear hood. WARNING 3 2 Figure 18 1. Crankshaft driven pulley 2. #1 position (ProCore 1298 LH coring head shown) 3. #6 position (ProCore 1298 LH coring head shown) 3.
2. Apply antiseize lubricant liberally to crankarm splines and journals. 1 3. Install crankarms into bearing housing. Make sure that correct identification number on crankarm is aligned with timing mark on bearing housing (Fig. 19). 3 3 4. Install cap screw (item 1) and flat washer (item 2) to retain crankarms. Do not fully tighten cap screw. 5. Drive new spring pins (item 11) into coring head frame holes. 6. Position bearing housing assembly to coring head frame. 4 7.
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Coring Head Drive Belt PROCORE 864 SHOWN 2 1 5 3 6 4 15 5 12 11 6 9 8 10 13 7 14 15 18 17 16 FRONT 22 RIGHT 19 20 21 Figure 22 1. 2. 3. 4. 5. 6. 7. 8. Tinnerman nut (4 used) Belt guard support Dirt shield Belt guard Flat washer (4 used) Flange head screw (4 used) Flange nut Flat washer 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
5. Loosen lock nut (item 15) that secures idler nut in position on idler spring mount. Loosen idler nut (item 16) to remove idler tension on drive belt. 2 CAUTION 1 Be careful when lifting the idler pulley. The idler pulley is spring loaded and may cause personal injury. 6. Lift and hold idler pulley away from belt. Remove belt from drive pulley. Carefully lower idler pulley. 7.
Coring Head Drive PROCORE 864 SHOWN 28 27 29 ANTISEIZE LUBRICANT 30 24 9 31 15 32 13 18 10 35 14 26 11 19 2 16 17 34 12 11 3 4 1 11 21 33 20 3 5 25 6 22 24 23 210 to 230 ft−lb (285 to 311 N−m) FRONT RIGHT 7 8 Figure 27 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Pulley support Pulley shaft Bearing (2 used) Bearing spacer Shim washer Pulley Flat washer Cap screw Spacer tube Spring mount Washer Cap screw 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24.
Removal (Fig. 27) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 2. Remove rear hood from machine. 3. Remove front cover and pulley shield from machine (see Cover Removal in the Service and Repairs section of Chapter 3 − Chassis). 4. Remove coring head drive belt (see Coring Head Drive Belt Removal in this section). 5.
Coring Head Pivot (H−Frame) PROCORE 1298 SHOWN 17 16 21 11 10 9 18 8 7 12 19 6 13 22 1 5 2 20 3 14 5 FRONT 3 4 15 RIGHT 14 Figure 29 1. 2. 3. 4. 5. 6. 7. 8. H−frame Thrust washer (4 used) Pivot shaft (2 used) Cap screw Flange nut Carriage screw Rod end (LH threads) (2 used) Jam nut (LH threads) (2 used) Coring Head 9. 10. 11. 12. 13. 14. 15. Upper link (2 used) Jam nut (2 used) Rod end (2 used) Lock washer (4 used) Hex nut (4 used) Spring cup Compression spring Page 4 − 28 16. 17. 18.
Disassembly (Fig. 29) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 2. Remove rear hood from machine. Adjust coring head depth to the deepest setting. 3. Remove front cover and pulley shield from machine (see Cover Removal in the Service and Repairs section of Chapter 3 − Chassis). 4. Support the aerator to prevent the machine from moving. 7.
4. Position coring head to allow alignment of both sides of H−frame to pivot shaft holes in coring head frame. Slide pivot shaft through coring head frame and H− frame. Secure pivot shaft to coring head frame with carriage screw and flange nut. 1 3 5. Position upper link assemblies to hitch frame and coring head frame. Make sure that link assemblies (Fig. 31) have the groove installed in the same direction. Secure upper link rod ends to machine with lock washer and hex nut. 8.170” to 8.
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Depth Control Assembly PROCORE 1298 SHOWN 4 2 5 1 3 9 8 10 11 7 FRONT 6 RIGHT 7 Figure 32 1. 2. 3. 4. H−frame Depth control assembly Flange nut (4 used) Carriage screw (4 used) Coring Head 5. 6. 7. 8. Coring head frame Compression spring Spring cup Hitch frame Page 4 − 32 9. Flange head screw (4 used) 10. Pad 11.
Removal (Fig. 32) Installation (Fig. 32) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 1. Make sure that coring frame is supported in a raised position to prevent unexpected lowering of coring frame. 2. Position depth control assembly to coring frame. 2. Remove rear hood from machine. 3. Secure depth control assembly to coring frame with four (4) carriage screws and flange nuts. 4.
Depth Control Assembly Service 1 26 16 2 3 17 4 20 16 5 21 18 22 6 UP 23 13 19 7 24 23 13 11 12 25 14 9 12 8 15 11 10 Figure 34 1. 2. 3. 4. 5. 6. 7. 8. 9. Flange head screw Flat washer Depth control gage Oil seal Depth control hub Plug Oil seal Shoe Hairpin clip Coring Head 10. 11. 12. 13. 14. 15. 16. 17. 18. Depth control shaft Flange bushing Thrust bearing Thrust washer Worm Worm gear spacer Bearing washer Thrust bearing Worm gear Page 4 − 34 19. 20. 21. 22. 23. 24. 25. 26.
1. Remove flange head screw (item 1), flat washer (item 2) and depth control gage (item 3) from top of depth control shaft. 2. Remove hairpin clip (item 9) and shoe (item 8) from bottom of depth control shaft. 3. Unscrew depth control shaft (item 10) and remove from depth control hub. 4. Remove upper and lower oil seals (items 4 and 7) from depth control hub. Take care to not damage seal bores in hub. Discard seals. 5.
Driveshafts PROCORE 1298 SHOWN ANTISEIZE LUBRICANT 70 to 80 ft−lb (95 to 108 N−m) ANTISEIZE LUBRICANT 8 2 3 2 ANTISEIZE LUBRICANT 6 4 ANTISEIZE LUBRICANT 3 4 7 5 2 3 3 FRONT 70 to 80 ft−lb (95 to 108 N−m) 2 1 RIGHT 70 to 80 ft−lb (95 to 108 N−m) Figure 35 1. PTO driveshaft 2. Lock nut 3. Cap screw 7. RH pulley support assembly 8. LH pulley support assembly 4. Coring head driveshaft 5. Hitch frame 6.
5. If necessary, remove guards from PTO driveshaft (Fig. 38): PTO DRIVESHAFT 2 A. Press clip end and rotate clip from guard. 4 B. Rotate bushing to disengage bushing from guard. 1 5 3 C. Slide guard from driveshaft. 2 D. Remove bushing from groove in yoke. Clean bushing and groove. 7 6 Installation (Fig. 35) Figure 37 1. Apply antiseize lubricant to shaft surfaces. 2.
Driveshaft Cross and Bearing Service 1. Remove driveshaft from aerator (see Driveshaft Removal in this section). IMPORTANT: When placing yoke in vise, clamp lightly on the solid part of the yoke to prevent yoke damage. Also, the use of a vise with soft jaws is recommended. 2. Lightly clamp yoke in vise. Remove snap rings that secure bearings in each yoke. Remove yoke from vise. IMPORTANT: Yokes must be supported when removing and installing bearings to prevent damage. 3.
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Gearbox PROCORE 1298 SHOWN 16 14 15 13 4 13 2 12 12 3 18 15 5 17 13 10 12 6 7 19 12 11 FRONT 8 RIGHT 9 1 13 Figure 40 1. 2. 3. 4. 5. 6. 7. PTO driveshaft Gearbox Flange head screw (4 used) Reducer fitting Adapter Tube Hardline keeper Coring Head 8. 9. 10. 11. 12. 13. Lock nut Cap Cap screw Lock nut Cap screw Lock nut Page 4 − 40 14. 15. 16. 17. 18. 19.
Installation (Fig. 40) 1. Position aerator on a firm, level surface. If attached to tractor, disengage PTO, apply tractor parking brake, stop engine and remove key from the ignition switch. 2. Remove front cover from hitch frame (see Front Cover Removal in the Service and Repairs section of Chapter 3 − Chassis). 3. Drain lubricant from gearbox. NOTE: The ProCore 864 uses one (1) coring head driveshaft. The ProCore 1298 has two (2) coring head driveshafts. 4.
Gearbox Service 3 4 Thread Sealant 6 1 7 2 4 8 5 9 5 10 13 14 16 17 11 12 14 21 Thread Sealant 15 19 81 ft−lb (109 N−m) 18 20 Figure 41 1. 2. 3. 4. 5. 6. 7. Oil seal Retaining ring Hard shim Soft shim Bearing (cup and cone) Cross shaft Relief vent 8. 9. 10. 11. 12. 13. 14. Fitting Housing Oil seal Plug Adapter Input gear and shaft Bearing (cup and cone) NOTE: The gearbox used on ProCore 864 and 1298 machines is identical. 15. 16. 17. 18. 19. 20. 21.
3. Install cross shaft assembly into gearbox housing: A. Remove oil seal (item 21) from quill housing. Discard oil seal. B. Bend retaining tab of retaining shim and remove lock nut and shim from shaft. Discard retaining shim. C. Remove outer bearing. Slide shaft and inner bearing from quill housing. D. Remove inner bearing from shaft. E. Use press to remove bearing cups from quill housing. 4. Remove oil seal (item 1) from housing to allow removal of cross shaft assembly. Discard oil seal. 5.
C. Mount a dial indicator with a magnetic base to the vise so that the dial indicator touches the pliers 3.100” (78.7 mm) from the center of the input shaft. 3.100” (78.7 mm) LOCKING PLIERS (LIGHTLY CLAMPED) D. Rotate the pliers and monitor the dial indicator reading to check gearbox backlash. Allowable backlash is from 0.006” to 0.013” (0.16 to 0.33 mm). E. If backlash adjustment is necessary, remove gasket(s) from between quill and gearbox housing to decrease backlash.
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