Form No. 3380-475 Rev A ProCore® SR48, SR54, SR54–S, SR70, SR70–S, SR72 and SR75 Aerators Model No. 09930—Serial No. 314000001 and Up Model No. 09931—Serial No. 314000001 and Up Model No. 09932—Serial No. 314000001 and Up Model No. 09933—Serial No. 314000001 and Up Model No. 09934—Serial No. 314000001 and Up Model No. 09935—Serial No. 314000001 and Up Model No. 09936—Serial No. 314000001 and Up Register at www.Toro.com.
This product complies with all relevant European directives, for details please see the separate product specific Declaration of Conformity (DOC) sheet. Model No. Serial No. WARNING 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.
Contents Lifting the Machine ................................................30 Greasing the Bearings .............................................31 Checking the Gearbox Oil .......................................31 Changing the Gearbox Oil .......................................32 Inspecting/Adjusting the Drive Chain .......................32 Adjusting the PTO Clutch .......................................33 Fastener Torque Specifications .................................33 Checking the Springs .........
While Operating Safety • Never operate the tractor in reverse when the aerator is 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." Failure to comply with the instruction may result in personal injury or death.
• Never allow passengers to ride on the machine during replacement parts and accessories could void the warranty of The Toro Company. transport. • Reduce speed on rough roads and surfaces • Independent wheel brakes should always be locked Storage Safety together when transporting. • Store the aerator on the storage stands positioned on a firm level surface. PTO Shaft • Store the aerator away from areas of human activity. • For all PTO shaft steel parts (tubes, bearings, joints etc.
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 Description Use Qty.
Procedure Description 16 17 18 Use Qty. Lock plate Tap bolt Retaining ring 2 2 2 Install the latch lock No parts required – Remove Storage Stands No parts required – Remove Storage Stands Media and Additional Parts Description Use Qty.
3. Engage the parking brake, STOP the engine and remove the key from the ignition. Wait for the engine and all moving parts to STOP before leaving the Operator's seat on the tractor. 3 Connecting the Hydraulic Top Link (Models SR48, SR54, SR70, SR72 and SR75) Note: For maximum ground clearance, the hitch pins should be secured in the aerator lower mounting bracket holes, when so equipped. To determine when to use the upper mounting holes, refer to Connecting the PTO Shaft.
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 1. Aerator hitch pin 7. Tractor link pin 2. Hydraulic top link 8. Clevis & lynch pin 3. Rotational block 9. 2–1/2 foot hydraulic hose 4. Connecting link 10. 3–1/2 foot hydraulic hose 5. 3 inch extension block 11. Hose quick couplings 6. 5 inch extension block 12.
4 Installing the Depth Gauge (Models SR48, SR54, SR70, SR72 and SR75) Parts needed for this procedure: Figure 8 SR75 mounting shown 1. Link pin 3. Rod end of cylinder 2. Aerator bracket 4.
2. Using the tube clamp, weld plate and two 1/4 x 2–1/2 inch screws, loosely mount the depth gauge to the rod end of the top link cylinder (Figure 9). Make sure the clamps are loose enough to allow them to be rotated to the desired position. 3. Make sure the top of cylinder is clean enough to except the installation of a decal. 4. Affix the depth decal to the top of the cylinder at a location that is visible to the operator and does not interfere with hydraulic hoses or other obstructions (Figure 9).
• If the tine heads contact the ground, adjust the location 8 of the cylinder ends to move the top of the aerator closer to the tractor. • If the tine heads do not contact the ground, extension Fitting the PTO shaft brackets (included with aerator) can be installed to the top link to move the tine heads closer to the ground. Important: When connecting the PTO, be sure that the aerator is not being lifted higher than is necessary.
protrude into the cross and bearing section of the outer tube (Figure 17). If this happens, more will have to be cut off the inside tube, to correct the problem. Proceed to next step. 10. Measure the distance the inside tube protrudes into the cross and bearing section of the outer tube (Figure 17). Add this distance to the dimension attained in step 8. Figure 14 5.
Figure 19 1. PTO shield 2. Flat washer 4. Bolt 5. Access panel 3. Lock washer 2. Mount the PTO shield to the aerator gear box with the fasteners previously removed (Figure 19). When mounting the PTO shield, make sure the access panel (Figure 19) is positioned to the top or side depending on the aerator frame configuration. 10 Connecting the PTO Shaft Figure 18 1.
Figure 22 Figure 20 1. Gearbox input shaft 3. Pin 2. PTO shaft coupler 4. Nut 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 23). The maximum angle on the PTO shaft is 35º. Note: Make sure to close and latch the PTO shield access panel if opened. Note: Make sure the pin is fully inserted into the yoke of the PTO. 3. Connect the PTO shaft to the tractor PTO shaft (Figure 21). Figure 23 1.
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. Note: Refer to the tractor Operator's Manual for additional installation and adjustment procedures. 12 Leveling the Aerator Side-to-Side Figure 24 1. Breakage will occur here Parts needed for this procedure: 11 1 Level (not supplied) Procedure Adjusting the Sway Links 1.
13 14 Installing the Tines Setting the Tine Depth (Models SR54–S and SR70–S) Parts needed for this procedure: No Parts Required Tines A/R Procedure Procedure A wide selection of tines are available for the aerator. Choose the tine type, size and spacings required for the job. Refer to the Parts Catalog for the list of accessories. 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.
15 Installing the Rear Guard Parts needed for this procedure: 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 Figure 30 3. Secure the guard mounting tubes to the side plates with (4) screws, flat washers and nuts (Figure 29). Procedure 1. Insert the end caps into the ends of the rear guard tubes (Figure 29). Note: Use the remaining washers, as required, to fill any gap between the tubes and the aerator side plates.
Figure 32 1. Bolts 2. Lock washer 3. Remove the storage stands. Figure 31 1. Retaining ring 3. Latch plate 2. Mounting hole 4. Tap bolt 3. Nut 4. Storage stand 4. Use the storage stands whenever the aerator is removed from the tractor. 18 2. Secure the latch plate to the side plate with a tap bolt and a retaining ring (Figure 31). 3. Repeat the procedure on the other hood latch.
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.
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 694 kg (1,530 lbs.) 528 kg (1165 lbs.) 563 kg (1,242 lbs.) 623 kg (1,373 lbs.) 679 kg (1,498 lbs.) 948 kg (2,091 lbs.) 1,406 kg (3,100 lbs.) Working Width 1.22 m (48”) 1.37 m (54”) 1.37 m (54”) 1.85 m (73”) 1.85 m (73”) 1.83 m (72”) 1.
Operation For example, if the engine rpm were 2700 for a PTO speed of 540 rpm, you would get: Note: Determine the left and right sides of the machine from the normal operating position. 2700 x (400÷540) = 2000 rpm In this example, running your tractor at 2000 rpm now provides you with a 400 rpm PTO speed. Tractor Controls If your tractor indicates some other engine rpm at 540 PTO rpm, substitute that number for the 2700 that was used above.
sharp turns while aerating will damage the aerator and the tines. 2. At a low tractor engine rpm, engage the power take off (PTO) clutch to start the aerator working. 3. Select a gear that gives a forward speed of approximately 1 to 4 km/hr. ( .8 - 2.5 M.P.H.) at the rated PTO speed of 400–460 rpm (refer to the tractor Operator's Manual). 3. If tractor “bogs” down when operating on hard ground or going uphill, raise aerator slightly until speed is regained, then lower aerator again. 4.
• Increase forward hole spacing (change tractor after aerating will depend on various factors including turf condition, root growth and moisture content. • Hard Ground transmission up one gear) Decrease the tine diameter (solid or coring) Using the Hood Prop Rods If the ground is too firm to obtain the desired aeration depth, the coring head can get into a “bouncing” rhythm. This is due to the hard pan the tines are attempting to penetrate.
4. Remove the nut and bolt in the adjustment holes in the camber bracket (Figure 35). Figure 36 1. Spring 3. Spring pin and clip 2. Bumper bolt 4. Remove the bumper bolt and bumper from the linkage arm and reinsert them into the other adjustment hole (Figure 36). 5. Reconnect the spring tension to the tine head. Figure 35 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.
6. Install the nut securing the spring mounting post bolt to the linkage arm. 5. Rotate the camber bracket until it is aligned with the desired hole in the arm and install the bolt and nut (Figure 37). 7. Reconnect the spring tension to the linkage arm. Note: Make sure the bolt goes through the chamber bracket and plate. 8. 6. Reconnect the spring tension to the tine head. 1 Adjusting the Tine Depth (Models SR54–S and SR70–S) 2 The tine depth can be changed by raising or lowering the rear roller.
1 2 3 G024288 Figure 41 SR75 1. Spring mounting post 3. Spring 2. Bolt Transport Operation To begin transport operation, raise the aerator and disengage the PTO. To avoid loss of control, traverse steep inclines slowly, approach rough areas at reduced speed and cross severe undulations carefully. Important: Do not exceed transport speeds of 24 km/hr. (15 m.p.h.).
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 1.9 liters (2 quarts) SR54 1.9 liters (2 quarts) SR54–S 1.9 liters (2 quarts) SR70 1.9 liters (2 quarts) SR70–S 1.9 liters (2 quarts) SR72 3.8 liters (4 quarts) SR75 3.8 liters (4 quarts) 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 45 1. Vent/Fill plug Check the drive chain for damage and correct adjustment.
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 47 Model SR72 1. Drive chain 2. Jam nut 3. Jam rod Models SR54, SR54–S, SR70 & SR70–S SR48 & SR72 SR75 Crank Shaft Nut 1288 N-m (950 ft-lbs) 1627 N-m (1200 ft-lbs.) 1491 N-m (1100 ft-lbs.) Crank Pin Nut 1288 N-m (950 ft-lbs) (1288 N-m (950 ft-lbs) 1491 N-m (1100 ft-lbs.
Checking the Springs 10. Disconnect the safety shield chains from PTO shaft. Service Interval: Before each use or daily 11. Pull back on the lock collar to disconnect the power shaft from the tractor PTO shaft. Check the springs for crossed or broken wires (Figure 50). Crossed or broken spring wires will cause an erratic hole pattern in the turf. 12. Slide the PTO shaft back and remove from tractor. 13. Connect the PTO safety chain to the aerator to prevent the PTO shaft from contacting the ground. 14.
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 5 cm (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.
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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.
