Form No. 3368-805 Rev C ProCore SR48, SR54, SR54–S, SR70, SR70–S, SR72 and SR75 Aerators Model No. 09930—Serial No. 311000001 and Up Model No. 09931—Serial No. 311000001 and Up Model No. 09932—Serial No. 311000001 and Up Model No. 09933—Serial No. 311000001 and Up Model No. 09934—Serial No. 311000001 and Up Model No. 09935—Serial No. 311000001 and Up Model No. 09936—Serial No. 311000001 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. Figure 2 You may contact Toro directly at www.Toro.
Contents Inspection and Cleanup after Use........................ 28 Maintenance............................................................... 29 Recommended Maintenance Schedule(s) ................ 29 Lifting the Machine ............................................ 29 Greasing the Bearings......................................... 30 Checking the Gearbox Oil .................................. 30 Changing the Gearbox Oil .................................. 31 Inspecting/Adjusting the Drive Chain ...........
Safety 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. 117–7052 1. Read the Operator’s Manual, do not oil the chain drive. 92–1581 100–3612 1. Entanglement hazard—stay away from moving parts, keep all guards and shields in place. 110-4668 1. Entanglement hazard, shaft—stay away from moving parts. 2. PTO speed and input direction. 3.
117–7050 1. Warning—read the Operator's Manual. 2. Warning—remove the ignition key and read the instructions before servicing or performing maintenance. 3. Warning—do not operate this machine unless you are trained. 4. Entanglement hazard, belt—stay away from moving parts, keep all guards in place. 5. Crushing hazard of hand or foot—keep bystanders a safe distance from the machine. 6. Crushing hazard of hand and body—support machine on stand when not in use. 7. Falling hazard—do not carry passengers.
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 14 15 16 17 Description Use Qty.
Media and Additional Parts Description Use Qty.
when to use the upper mounting holes, refer to Connecting the PTO Shaft. 3 SR54 and SR54-S Aerators only Connecting the Hydraulic Top Link (Models SR48, SR54, SR70, SR72 and SR75) Note: The hitch pins and lynch pins are shipped installed on the SR54 and SR54-S Aerators. 4. Secure the lower link arms to the aerator mounting pins with lynch pins (Figure 3).
Important: When securing the rod end of the hydraulic link, make sure to use the most forward mounting holes in the mounting bracket so there is enough clearance for the barrel of the cylinder when retracted. (Figure 5). Remove the connecting link from the cylinder. B. Install the rotational block to the cylinder with the pins previously removed (Figure 5). Figure 5 1. Aerator hitch pin 7. Tractor link pin 2. Hydraulic top link 8. Clevis & lynch pin Figure 6 SR54 and SR70 mounting shown 3.
4 Connecting the Tractor Upper Link (Models SR54–S and SR70–S) Parts needed for this procedure: Figure 8 SR75 mounting shown 1. Link pin 3. Rod end of cylinder 2. Aerator bracket 4. Lynch pin 1 Spring loaded top link 3 Link pin 3 Lynch pin Procedure 1. Mount the spring loaded top link to the aerator bracket with two link pins and lynch pins (Figure 9) 2. Loosen the lock nut on the tractor upper link.
5 Verifying the Hydraulic Top Link Set Up No Parts Required Procedure Figure 10 • Extending the hydraulic cylinder will increase the tine depth. 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. 6 CAUTION Checking the PTO Angle If the tine heads contact the ground, turf damage may occur.
7 Fitting the PTO shaft Parts needed for this procedure: 1 Figure 13 PTO shaft Procedure 5. Measure the distance from the locking groove on the end of the tractor PTO shaft to the locking groove on the aerator gearbox PTO shaft (Figure 14). Record this distance. Example: 27.5 inches (70 cm). 1. Move the tractor and aerator to a level surface. 2. Raise the aerator completely and fully retract the hydraulic top link cylinder or upper link (Figure 11). Figure 14 1. Measure here Figure 11 2.
9. Slide the PTO shaft tubes together until they are fully collapsed. Verify that the inside tube does not protrude into the cross and bearing section of the outer tube (Figure 16). If this happens, more will have to be cut off the inside tube, to correct the problem. Proceed to next step. telescoping tubes must have a suitable overlap to maintain the tubes alignment and allow them to slide freely. 10.
Figure 19 Figure 18 1. PTO shield 2. Flat washer 4. Bolt 5. Access panel 1. Gearbox input shaft 3. Pin 2. PTO shaft coupler 4. Nut 3. Lock washer 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 18). When mounting the PTO shield, make sure the access panel (Figure 18) is positioned to the top or side depending on the aerator frame configuration.
Figure 23 Figure 21 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 22). The maximum angle on the PTO shaft is 35º. 10 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 22 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. 12 Installing the Tines Parts needed for this procedure: Note: Refer to the tractor Operator's Manual for additional installation and adjustment procedures.
13 14 Setting the Tine Depth (Models SR54–S and SR70–S) Installing the Rear Guard Parts needed for this procedure: No Parts Required Procedure The tine depth can be changed by raising or lowering the rear roller. The roller height is adjusted by moving the roller adjusting bolts to the desired position. Note: The aerator is shipped in Position A. 1 Rear guard 4 Screw, 3/8 x 3–1/4 inch 12 Flat washer, .438 x 1.00 inch 4 Lock nut 2 End cap Procedure 1.
Figure 29 3. Secure the guard mounting tubes to the side plates with (4) screws, flat washers and nuts (Figure 28). Figure 30 Note: Use the remaining washers, as required, to fill any gap between the tubes and the aerator side plates. 15 2 Tap bolt 2 Retaining ring 2. Mounting hole 4. Tap bolt 3. Repeat the procedure on the other hood latch. 16 Parts needed for this procedure: Lock plate 3. Latch plate 2. Secure the latch plate to the side plate with a tap bolt and a retaining ring (Figure 30).
3. Remove the storage stands. 4. Use the storage stands whenever the aerator is removed from the tractor. Note: When reinstalling the storage stands, make sure they are mounted to the inside of the roller plates so the lower frame tube will rest on the top of the stands. Note: The SR75 shipping stand is also the storage stand and the SR54-S and the SR70-S do not have shipping stands. Figure 31 1. Bolts 2. Lock washer 3. Nut 4. Storage stand 3. Remove the storage stands. 4.
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 SR75 1,530 lbs. (694 kg) 1165 lbs. (528 kg) 1,242 lbs. (563 kg) 1,373 lbs. (623 kg) 1,498 lbs. (679 kg) 2,091lbs. (948 kg) 3,100 lbs. (1,406 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.
Important: Never operate the aerator in reverse or when it is in the raised position. from being picked up by mowers or other turf maintenance equipment and thrown. 10. Replace broken tines, inspect and correct damage to those still usable. Repair any other machine damage before continuing operation. Aerating Procedures Important: If the aerator has been stored for an extended period, check to make sure the PTO slip is operational. Refer to Adjusting the PTO Clutch in the Maintenance Section.
too hard to penetrate. When the tines contact this sub soil the aerator may lift and cause the top of the holes to become elongated. Reduce the aeration depth sufficiently to avoid penetration into the hard sub soil. CAUTION To avoid personal injury, never leave the tractor seat without first disengaging the PTO drive, setting the parking brake and stopping the engine. Never perform aerator adjustments or repairs without first lowering the aerator onto the safety stand.
3 2 1 Figure 34 g017489 Figure 33 1. Prop rod catch 1. Camber bracket 2. 16 inch tine 3. 12 inch tine 5. 10 inch tine 6. 14 inch tine 7. Tine head pivot bolt 4. 7 inch tine 8. Spring 3. Magnetic storage bracket 2. Prop rod 5. Rotate the camber bracket until it is aligned with the desired hole in the arm and install the bolt and nut. 4. When lowering the hood, return the prop rods to the magnetic storage brackets. Note: Make sure the bolt goes through the chamber bracket and plate. 6.
4. Remove the nut and bolt in the adjustment holes in the camber bracket (Figure 36). 5. Rotate the camber bracket until it is aligned with the desired hole in the arm and install the bolt and nut (Figure 36). Note: Make sure the bolt goes through the chamber bracket and plate. 6. Reconnect the spring tension to the tine head. Adjusting the Tine Depth (Models SR54–S and SR70–S) Figure 35 1. Spring 3. Spring pin and clip 2.
Inspection and Cleanup after Use After daily use, thoroughly wash the machine with a garden hose without a nozzle so contamination and seal and bearing damage due to excessive water pressure will be avoided. A brush may be used to remove caked-on material. Use mild detergent to clean the covers. After cleaning, grease all drive lines and roller bearings, inspect for machine damage, oil leakage, component and tine wear. Do not oil the O-ring drive chain. Remove, clean and oil the tines.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure 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 SR48 2 quarts (1.9 liters) 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) SR75 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 Figure 41 1. Vent/Fill plug Check the drive chain for damage and correct adjustment.
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. Fastener Torque Specifications Figure 43 Model SR72 1. Drive chain 2. Jam nut 3. Jam rod Models SR54, SR54–S, SR70 & SR70–S SR48 & SR72 SR75 Crank Shaft Nut 950 ft-lbs. 1200 ft-lbs. 1100 ft-lbs. Crank Pin Nut 950 ft-lbs. 950 ft-lbs. 1100 ft-lbs.
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 46). 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 and tine fasteners 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.
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.
