Form No. 3363-160 Rev A Guardian 72” Recycler Mower Groundsmaster® 300 Series Traction Units Model No. 30716—Serial No. 310000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Contents This product complies with all relevant European directives, for details please see the separate product specific Declaration of Conformity (DOC) sheet. Introduction................................................................. 2 Safety ........................................................................... 3 Safe Operating Practices ....................................... 3 Toro Mower Safety ............................................... 4 Safety and Instructional Decals ................
Safety – Never remove fuel cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke. – Never refuel or drain the machine indoors. • Check that operator’s presence controls, safety switches, and shields are attached and functioning properly. Do not operate unless they are functioning properly. This machine meets or exceeds CEN standard EN 836:1997, ISO standard 5395:1990, and ANSI B71.4-2004 specifications in effect at the time of production.
must know that is not included in the CEN, ISO, or ANSI standard. • Use care when loading or unloading the machine into a trailer or truck. • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision. • The operator shall turn on flashing warning lights, if provided, whenever traveling on a public road, except where such use is prohibited by law. Use of this product for purposes other than its intended use could prove dangerous to user and bystanders.
to search for leaks. Hydraulic fluid escaping under pressure can have sufficient force to penetrate the skin and cause serious injury. • Before disconnecting or performing any work on the hydraulic system, all pressure in the system must be relieved by stopping the engine and lowering the cutting units to the ground. • If the engine must be running to perform a maintenance adjustment, keep hands, feet, clothing, and any parts of the body away from the cutting units, attachments, and any moving parts.
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. 93-7818 1. Warning—read the Operator’s Manual for instructions on torquing the blade bolt/nut to 115-149 N-m (85-110 ft-lb). 106-6753 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts. 85-6120 1.
93-7826 1.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Use Qty. 1 2 3 Large castor wheel assembly Small castor wheel assembly 2 2 Install the castor wheel assemblies.
2 Installing the Drive Shaft to the Traction Unit Parts needed for this procedure: 1 Drive shaft Figure 2 1. Tensioning cap 2. Thrust washers 3. Spacers 4. Large (front) castor spindle Procedure Slide the smaller yoke end of the drive shaft onto the traction unit PTO shaft while aligning the mounting holes (Figure 4). Secure them with a roll pin. Do not install the front end of the drive shaft at this time. 2.
1. Remove the 2 self-tapping screws securing the PTO shield to the top of the cutting unit gear box mounting plate and remove the shield (Figure 5). 5. Secure the ball joint mount to the castor arm with 2 capscrews (7/16 x 3 inches), flat washers (7/16 inches), and flange nuts (7/16 inches). Position the flat washers to the outside of the castor arm. 6. Tighten the large jam nut securing the ball joint to the push arm (Figure 6).
5 Connecting the Drive Shaft to the Cutting Unit Gear Box Parts needed for this procedure: Figure 7 1. 2. 3. 4. Left-hand push arm Castor arm Ball joint mount Chain mount 5. Capscrews and washers 6. Ball joint 7. Jam nut 2 Bolt, 5/16 x 1-3/4 inches 2 Locknut, 5/16 inches 2 Roll pin, 3/16 x 1-1/2 inches Procedure Important: The drive shaft yokes must be exactly in line with each other when the outer yoke is installed on the gear box splined PTO shaft.
Greasing the Bearings and Bushings. Failure to properly grease the machine will result in premature failure of critical parts. 6 Installing the Lift Chains 8 No Parts Required Installing Rear Weight Procedure 1. Connect the lift chains to the lift arm and cutting unit chain brackets with 6 shackles, shackle pins (3/8 x 1-1/2 inches), and cotter pins (1/8 x 3/4 inch) (Figure 9).
Product Overview Operation Specifications Note: Determine the left and right sides of the machine from the normal operating position. Note: Specifications and design are subject to change without notice. CAUTION If you leave the key in the ignition switch, someone could accidently start the engine and seriously injure you or other bystanders. Width of 72 inches (1.829 m) Cut Height of Cut Adjustable from 1–1/2 to 4–1/2 inches (38 to 114 mm) in 1/2 inch (13 mm) increments Net Weight 607 lb.
Adjusting the Height-of-Cut The height of cut is adjustable from 1-1/2 to 4-1/2 inches (38 to 114 mm) in 1/2 inch (13 mm) increments, by adding or removing an equal number of spacers from the front and rear castor forks. The height-of-cut chart below gives the combinations of spacers to use for all height-of-cut settings. Height-of-Cut Setting (inches) Spacers Below Castor Arm Front Rear 1–1/2 0 0 2 1 1 2–1/2 2 2 3 3 3 3–1/2 4 4 4 5 5 Rear Castor Wheels 4–1/2 6 6 1.
Adjusting the Rollers Note: If the cutting unit is to be used in the 1 or 1-1/2 inches (25 or 38 mm) height-of-cut setting, the cutting unit rollers must be repositioned in the top bracket holes. Figure 14 1. Warning—wear hearing protection. 1. Remove the cotter pins securing the roller shafts to the underside of the deck. Mow When Grass is Dry 2. Slide the shafts out of the lower bracket holes, align the rollers with the top holes, and install the shafts.
Stopping If the machine has to be stopped while cutting, a clump of grass clippings may be deposited on the lawn. Follow this procedure for stopping while cutting 1. With the deck engaged, move onto a previously cut area. 2. Shift to neutral, move the throttle control lever to the Slow position, and rotate the ignition key to Off. After Operating To ensure optimum performance, clean the underside of the mower housing after each use.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 2 hours • Tighten the castor wheel nuts After the first 10 hours • Tighten the castor wheel nuts • Torque the blade bolts Before each use or daily • Lubricate the grease fittings • Check the blades Every 50 hours • • • • • Check the gear box lubricant Check the blade drive belt adjustment Clean under the cutting unit belt covers Tighten the castor wheel nuts Torque the blade bolts Ev
Figure 18 Figure 16 1. Dipstick/fill plug Separating the Cutting Unit from the Traction Unit 1. Position the machine on level surface, lower the cutting unit to the floor, shut the engine off and engage the parking brake. 2. Remove the self-tapping screws securing the shield to the top of the cutting unit and set the shield aside. 3. Drive out the roll pin securing the drive shaft yoke to the input shaft of the gear box (Figure 19).
DANGER If the engine is started and the PTO shaft is allowed to rotate, serious injury could result. Do not start the engine and engage the PTO lever when the PTO shaft is not connected to the gear box on the cutting unit. 4. Disconnect the cotter pins and clevis pins securing the lift chains to the lift arms. WARNING The right-hand push arm is spring loaded to about 100 lb. (45 kg) and the left-hand push arm is spring loaded to about 150 lb. (68 kg). Sudden release of the push arm could cause injury.
WARNING Sudden release of the push arm could cause injury. Make sure that the wooden block does not slip out. 6. Secure the ball joint mount and chain bracket to the castor arm with the capscrews, flat washers, and flange nuts. Position the flat washers to the outside of the castor arm. Mount the chain bracket in the forward set of holes. 7. Carefully remove the wood block holding the push arm down. 8. Line up the holes in the yoke and input shaft of the gear box.
Servicing the Front Bushings in the Castor Arms wear. A wobbly castor wheel usually indicates a worn bearing. 1. Remove the locknut from the capscrew holding the castor wheel assembly between the castor fork (Figure 26). Grasp the castor wheel and slide the capscrew out of the fork. 2. Pull the spanner bushing out of the wheel hub (Figure 26). The castor arms have bushings pressed into the top and bottom of the tube and after many hours of operation, the bushings will wear.
genuine Toro replacement blades to ensure safety and optimum performance. Never use blades made by other manufacturers because they could be dangerous. DANGER A worn or damaged blade can break, and a piece of the blade could be thrown into the operator’s or bystander’s area, resulting in serious personal injury or death. • Inspect the blade periodically for wear or damage. • Do not try to straighten a blade that is bent. • Never weld a broken or cracked blade.
2. Raise the height-of-cut to the highest position; refer to Adjusting the Height-of-Cut. WARNING If the blade is allowed to wear, a slot will form between the sail and flat part of the blade (Figure 28). Eventually, a piece of the blade may break off and be thrown from under the housing, possibly resulting in serious injury to yourself or bystanders. 3. Lower the cutting unit onto the flat surface. Remove the covers from the top of the cutting unit. 4.
Troubleshooting Problem The cutting unit will not cut or cuts poorly. Possible Cause Corrective Action 1. The blades are dull. 1. Sharpen the blades. 2. One or more blades are bent or damaged. 3. The spindle bolts are loose. 2. Replace the blades. 4. The cutting unit belts are loose or broken. 5. The gear box pulley is loose. 6. A gear box shaft is broken. 7. The PTO belt is broken. 8. The PTO pulley is loose or broken. 9. The PTO shaft is broken. 10.
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The Toro Total Coverage Guarantee A 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 Commercial product (“Product”) to be free from defects in materials or workmanship for two years or 1500 operational hours*, whichever occurs first. This warranty is applicable to all products with the exception of Aerators (refer to separate warranty statements for these products).
