Form No. 3362-258 Rev A ProCore SR48, SR54, SR54–S, SR70, SR70–S, SR72 and SR75–HD Aerators Model No. 09920—Serial No. 290000001 and Up Model No. 09921—Serial No. 290000001 and Up Model No. 09922—Serial No. 290000001 and Up Model No. 09924—Serial No. 290000001 and Up Model No. 09925—Serial No. 290000001 and Up Model No. 09926—Serial No. 290000001 and Up Model No. 09927—Serial No. 290000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
This manual identifies potential hazards and has safety messages identified by the safety alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. Introduction Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely. You may contact Toro directly at www.Toro.
Contents Checking the Coring Head Fastener Torque ........................................................... 27 Checking the Springs .......................................... 28 Adjusting the Hole Spacing................................. 28 Removing the Aerator from the Tractor............... 28 Trouble Shooting ............................................... 29 Storage....................................................................... 30 Introduction.................................................
Safety in moving parts. Always wear long pants and substantial shoes. Wearing safety glasses, safety shoes, hearing protection and a helmet is advisable and may be required by some local ordinances and insurance regulations. Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER - "personal safety instruction.
Transporting • Be sure the machine is in safe operating condition by keeping nuts, bolts and screws tight. Check the tine mounting bolts daily to be sure they are tightened to specification. • The aerator is heavy. When attached to a tractor and in the raised position, its weight will affect stability, braking and steering. Exercise caution when transporting between working areas. • Do not check or adjust the chain tension when the tractor engine is running.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 110-4668 117–7052 1. Entanglement hazard, shaft—stay away from moving parts. 2. PTO speed and input direction. 3. Use clip to secure lash cable when not in use. Use lash cable to support the power take-off when the machine is disconnected from tractor. 1. Read the Operator’s Manual, do not oil the chain drive.
92–1581 92–1582 7
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 5 6 7 8 9 10 11 12 13 Description Use Qty.
Media and Additional Parts Description Use Qty.
2 Connecting the Hydraulic Top Link (Models SR48, SR54, SR70, SR72 and SR75–HD Parts needed for this procedure: 1 Hydraulic top link 1 Hydraulic hose, 3–1/2 feet 1 Hydraulic hose, 2–1/2 feet 2 Extension bracket 1 Rotational bracket 2 Hose quick couplings (not included) Figure 5 1. 2. 3. 4. 5. Aerator hitch pin Hydraulic top link Rotational block Connecting link 3 inch extension block 6. 5 inch extension block 7. 8. 9. 10. 11.
3 Connecting the Tractor Upper Link (Models SR54–S and SR70–S) Parts needed for this procedure: 1 Spring loaded top link 3 Link pin 3 Lynch pin Figure 6 1. Rod end of cylinder 2. Lynch pin 3. Link pin Procedure 4. Aerator bracket (forward holes) 5. Link pin 1. Mount the spring loaded top link to the aerator bracket with two link pins and lynch pins (Figure 7) 2. Loosen the lock nut on the tractor upper link.
4 Verifying the Top Link Set Up No Parts Required Procedure • Extending the hydraulic cylinder will increase the tine depth. Figure 8 1. Breakage will occur here • Fully extend the hydraulic cylinder to determine the location of the tine heads and to verify if they contact the ground. 5 If the tine heads contact the ground, turf damage will occur.
Figure 12 Figure 9 1. Measure here 6. On the PTO shaft, measure the distance from the center of locking pin ball on one end to the center of the locking pin button on the other end (Figure 13). Record this distance. Example: 32 inches (81 cm). 3. Measure the distance from the relief on the end of the tractor PTO shaft to the relief on the aerator gearbox PTO shaft (Figure 10). Record this distance. Example: 26.5 inches (67 cm). Figure 13 1. Measure here Figure 10 7.
12. Using the dimensions determined in step 8, locate, mark and cut off the shield and tube from each PTO half (Figure 15, illustrations 2 & 3). Note: More will have to be cut off the inside tube only if it is protruding into the cross and bearing section of the outer tube. 13. Using the dimensions determined in step 11, locate, mark and cut off just the safety shields to expose the tubesFigure 15—illustrations 4 & 5. Figure 14 1. Inside tube 14.
Figure 17 Figure 16 1. PTO shield 2. Flat washer 3. Lock washer 1. Gearbox input shaft 2. PTO shaft coupler 4. Bolt 5. Access panel 3. Pin 4. Nut Note: Make sure to close and latch the PTO shield access panel if opened. 2. Mount the PTO shield to the aerator gear box with the fasteners previously removed (Figure 16). When mounting the PTO shield, make sure the access panel (Figure 16) is positioned to the top or side depending on the aerator frame configuration. 3.
Figure 21 Figure 19 1. Breakage will occur here 1. Safety chains Note: To avoid excess lift, connect the lift arms of the tractor into the top holes of the lift bracket, if so equipped (Figure 20). The maximum angle on the PTO shaft is 35º. 9 Adjusting the Sway Links No Parts Required Procedure The aerator is designed to be centered with the tractor PTO shaft center line. Adjust the sway links as required. Figure 20 The PTO shaft should be as straight as possible to the tractor PTO shaft. 1.
Adjust the lower links inboard until they contact the aerator mounting plates. This will reduce the stress on the pins. If the tractor has sway chains instead of sway links, it is recommended that washers be installed between the lower link arm and lynch pin to reduce the over hung load on the lift pins. 11 Installing the Tines Note: Refer to the tractor Operator’s Manual for additional installation and adjustment procedures.
6. Set the tine angle for the new tines. Refer to Adjusting the Tine Angle in the Operation section. 13 7. Before aerating formal turf for the first time after installing tines, test the aerator on a less important area so that you can try alternative tractor gears and fine tune the adjustment to achieve the hole spacing and turf appearance desired. Removing the Storage Stands (Models SR72) No Parts Required 12 Procedure 1. Raise the aerator roller(s) 3-6 inches off ground.
Product Overview Specifications Note: Specifications and design are subject to change without notice. ProCore SR48 ProCore SR54 ProCore SR54–S ProCore SR70 ProCore SR70–S ProCore SR72 ProCore SR75HD 1,450 lbs. (655 kg) 990 lbs. (450 kg) 1,250 lbs. (567 kg) 1,500 lbs. (681 kg) 1,655 lbs. (750 kg) 1,985 lbs. (900 kg) 3,250 lbs. (1,475 kg) 48” (1.22 m) 54” (1.37 m) 54” (1.37 m) 73” (1.85 m) 73” (1.85 m) 72” (1.83 m) 78” (1.
Operation on the rev counters. Since the engine and PTO rpms are directly proportional, you can determine the engine rpm required for a 400 rpm PTO by calculating as follows: Note: Determine the left and right sides of the machine from the normal operating position.
Operating Tips Important: Never operate the aerator in reverse or when it is in the raised position. 1. Engage PTO at low engine speed. Increase engine speed to achieve the desired PTO speed of 400–500 rpm (maximum) and the lower aerator. Operate at an engine rpm that the aerator runs most smoothly. Aerating Procedures 1. Lower the aerator so that the tines are nearly to the ground at the lowest part of their stroke. 2.
previous passes. A loss of one line of holes indicates a bent or lost tine. Inspect after each pass. the PTO speed is around 400 – 420 rpm. The forward spacing is not effected by reducing the engine speed. The pushed hole can also be affected by the position of the camber bracket. Refer to Adjusting the Tine Angle. 8. Always clear the area of all damaged machine parts, such as broken tines, etc., to prevent them from being picked up by mowers or other turf maintenance equipment and thrown.
Figure 28 Figure 27 1. Camber bracket 2. 14 inch tine 3. 12 inch tine (Use this position for more lifting action) 4. 7 inch tine 5. 10 inch tine 1. Bumper bolt 2. Spring 6. 12 inch tine (Common) 7. 16 inch tine 8. Tine head pivot bolt 3. Spring pin and clip 4. Remove the bumper bolt and bumper from the linkage arm and reinsert them into the other adjustment hole (Figure 28). 9. Spring 5. Reconnect the spring tension to the tine head. 5. Loosen the tine head pivot bolt (Figure 27).
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Check the torque of all the coring head fasteners After the first 50 hours • Change the Gearbox Oil Before each use or daily • • • • Inspect the chain tension Check the springs Clean and lubricate springs and tine mounting screws Inspect the PTO for signs of wear.
Greasing the Bearings The sealed bearings require no lubrication or short term maintenance. This minimizes routine service required and reduces the potential of turf damage due to grease contamination. These sealed bearing packages will provide good performance and life under normal use, but periodic inspections of bearing condition and seal integrity should be conducted to avoid downtime. These bearings should be inspected seasonally and replaced if damaged or worn.
Model Gear Case Capacity SR54 2 quarts (1.9 liters) SR54–S 2 quarts (1.9 liters) SR70 2 quarts (1.9 liters) SR70–S 2 quarts (1.9 liters) SR72 4 quarts (3.8 liters) 6. Install the vent/fill plug. 7. Check the oil level and replenish as required. Inspecting/Adjusting the Drive Chain Service Interval: Before each use or daily Every 50 hours Check the drive chain for damage and correct adjustment. The chain should have approximately 1/2 inch (12.
stopping the PTO. Turn back the nuts an additional 2 turns. Note: Do not allow the clutch to slip for an extended amount of time. 3. If the clutch continues to slip after turning back the nuts, tighten each nut an addition 1/4 turn until the slipping ceases. Do not overtighten the nuts as shaft damage may occur. Checking the Coring Head Fastener Torque Figure 34 Models 72 1. Drive chain 2. Jam nut Service Interval: After the first 8 hours Every 50 hours 3.
Checking the Springs hoses and the connecting link from the tractor. Cap the hydraulic hoses. Store these components with the aerator. Service Interval: Before each use or daily Check the springs for crossed or broken wires (Figure 37). Crossed or broken spring wires will cause an erratic hole pattern in the turf. 10. Disconnect the safety shield chains from PTO shaft. 11. Pull back on the lock collar to disconnect the power shaft from the tractor PTO shaft. 12.
Trouble Shooting Problem Solution Springs are breaking or not pulling back the head to normal position. Slow the PTO speed of the tractor. The longer and heavier the tines, the greater the centrifugal force on the head. Check for crossed or broken spring wires. Holes are elongated or picking. Adjust the angle of the tine or change the tractor ground speed. Make sure that the aerator can be lowered at least 2 inches below flat ground level to allow for undulation.
Storage At the end of an aerating season or when the aerator will not be used for a long period, it is good practice to carry out the following preventative maintenance. 1. Clean off any dirt or grease that may have accumulated on the aerator or any of the moving parts. 2. Remove and clean out tines. Coat tines with oil to prevent rusting during storage. 3. Open the hood and clean out the inside of the machine. 4. Lubricate all grease fittings and tine fastener screw threads. 5.
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Toro Commercial Aerator Products Warranty A Two-Year Limited Warranty Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Hydroject or ProCore Aerator (“Product”) to be free from defects in materials or workmanship for two years or 500 operational hours*, whichever occurs first.
