Form No. 3415-967 Rev B E-Z Vac™ HD Twin Bagger Zero Turn Radius Riding Mower Model No. 78431—Serial No. 400000000 and Up Register at www.Toro.com.
WARNING CALIFORNIA Proposition 65 Warning Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. 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 Model No. Safety ....................................................................... 4 Towing Safety ..................................................... 4 Safety and Instructional Decals .......................... 5 Setup ........................................................................ 7 1 Preparing the Machine..................................... 9 2 Installing the ROPS Pin.................................... 9 3 Installing the Weight Kit..................................
Towing Safety Safety • Do not attach towed equipment except at the hitch • Become familiar with the safe operation of the point. equipment, with the operator controls, and safety signs. • Follow the attachment manufacturer's recommendation for weight limits for towed equipment and towing on slopes. • Use extra care with grass catchers or other attachments. These can change the operating characteristics and the stability of the machine. • Never allow children or others in or on towed equipment.
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 missing. decal133-8061 133-8061 decal126-9451 126-9451 1. Thrown objects hazard—Do not run the blower without the entire collection system installed and latched. 2. Warning–Read the Operator’s manualabout counterbalance weight installation. 3.
decal106-5517 106-5517 1. Warning—do not touch the hot surface. decal126-9595 126-9595 1. Rotation indicator 2. Impeller/Rotating Blades hazard-Keep hands away from moving parts. Keep all safety devices in place and working. Do not reach into the blower unless the rotation indicator has stopped. Disengage the PTO, shut off the engine, remove the key, and wait for all moving parts to stop.
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 Description Use Qty.
Procedure 12 13 14 15 16 17 18 Description Use Qty.
1 Preparing the Machine No Parts Required Procedure 1. Park the machine on a level surface. 2. Move the motion-control levers to the NEUTRAL-LOCK position. 3. Engage the parking brake. 4. Shut off the engine and remove the key. g037289 Figure 5 2 Installing the ROPS Pin Parts needed for this procedure: 2 ROPS-pin assembly 2 Bolt (#10 x 3/4 inch) 2 Washer (#10) Procedure 1. Use a #18 (0.170 inch diameter) drill bit and drill out the lanyard hole in the ROPS (Figure 6). g038295 Figure 6 1.
2. Use the self-tapping screw (#10 x 3/4 inch) and washer to secure the ROPS-pin assembly to each side of the ROPS assembly (Figure 6). 3. Insert the ROPS pin into the hole in the ROPS (Figure 6). 3 Installing the Weight Kit g037628 Figure 8 Parts needed for this procedure: 1. Nut (3/8 inch) 3. Weight assembly 2. Flat weight 2 Weight 2 Channel plate 2 Plate 2 Tabbed plate 4 Bolt (3/8 x 2-1/2 inches) 4 Nut (3/8 inch) 2 Flat weight 3.
4 Installing the Bagger Support (If Applicable) Parts needed for this procedure: 1 Left bagger support 1 Right bagger support 1 Left support bracket 1 Right support bracket 4 Bolt (5/16 x 3 inches) 2 Bolt (3/8 x 1 inch) 4 Flange nut (5/16 inch) 2 Flange nut (3/8 inch) 6 Washer g038184 Figure 11 1. Bolt securing the of the rear guard 3. Flange nut securing the rear guard 2. Rear guard 3. Align the holes in the support bracket to the holes in the frame (Figure 12). Procedure 1.
5 Installing the Bagger Brackets Parts needed for this procedure: 5. Bolt (5/16 x 3-1/4 inches) 2. Washer 3. Bolt (3/8 x 1 inch) 6. Washer 7. Flange nut (5/16 inch) 4. Bagger mount 8. Support bracket 6. Align the holes in the bagger mount to the 2 bolts that you inserted earlier and secure it with the 2 flange nuts (Figure 13). 7. Tighten all the hardware that you installed. 8. Perform previous steps on the other side of the machine.
6 7 Installing the Transmission Support Installing the Cross Brace Parts needed for this procedure: Parts needed for this procedure: 1 Transmission support Procedure 1. Remove the 2 flange nuts from the support bolts on the left and right transmissions and set them aside (Figure 15). 1 Cross brace 2 Bolt (5/16 x 1-1/4 inches) 2 Flange nut (5/16 inch) 2 Washer (3/8 inch) Procedure 1.
8 Installing the Bagger Frame Parts needed for this procedure: 1 Bag support 2 Lock-pin assembly Procedure 1. Arrange the bagger frame around the pivot pins on the support bracket and rotate it forward (Figure 17). g038187 Figure 18 1. Hairpin cotter g038186 Figure 17 1. Pivot pin 2. 2. Bagger frame Insert the lock pin through the bagger frame and cross brace (Figure 18). Note: You may need to loosen the hardware to align the lock pin to the hole. 14 2. Lock pin 3.
9 10 Installing the Bags Installing the Hitch Cover Parts needed for this procedure: Parts needed for this procedure: 2 Bags 1 Procedure 1. Hitch cover Procedure Hook the bag to the bagger frame (Figure 19). 1. Apply a lubricant to the nipple on the hitch cover. 2. Align the hitch cover over the hitch and press it into place (Figure 20). g211241 Figure 20 g038192 Figure 19 1. Bagger frame 2. 1. Hitch cover 2. Nipple 2. Bag Close and latch the hood assembly. 15 3.
4. 11 Remove the locknut, bolt, spring, and spacer holding the deflector to the pivot brackets (Figure 23). Removing the Existing Belt Cover, Bracket, and Discharge Chute No Parts Required Procedure Note: Clean the area around the belt cover before removing it. 1. Lower the mower deck to the lowest height-of-cut position. 2. Remove the right belt cover (Figure 21). g015594 Figure 23 1. Bolt 5. Spring installed 2. Spacer 6. Grass deflector 3. Locknut 7. J-hook end of spring 4. Spring 5.
12 Installing the Blower-Pulley Assembly and Belt-Cover Bracket Parts needed for this procedure: 1 Blower-pulley assembly 1 Belt-cover bracket 1 Speed nut 2 Carriage bolt (1/4 x 3/4 inch) 2 Locknut (1/4 inch) 3 Locknut (3/8 inch) 1 Blower pulley 1 Locknut (3/4 inch) 1 Washer 1 Pulley mount g036861 Figure 24 Models 78433, 78434, 78435, 78401, 78402, and 78403 Procedure 1. 1. Clutch pulley 3. Spring-loaded idler pulley 2. Mower belt 4.
4. Use a wrench (1-1/2 inches) to hold the spindle shaft, as you install the double pulley onto the right spindle shaft. • For blower Models 78433, 78434, 78435, 78401, 78402, and 78403, perform the following procedure: A. Use the locknut (3/4 inch) and washer to secure the new double pulley onto the right spindle shaft (Figure 28). B. Torque the locknut (3/4 inch) to 176 to 217 N∙m (130 to 160 ft-lb). g036865 Figure 26 Models 78436, 78437, 78438, 78404, 78405, and 78406 1. Clutch pulley 4.
7. Install the belt-cover bracket to the mower deck using 2 carriage bolts (1/4 x 3/4 inch) and 2 locknuts (1/4 inch) as shown in Figure 31. 8. Install the speed nut onto the belt-cover bracket (Figure 31). g038112 Figure 31 1. Carriage bolt (1/4 x 3/4 inch) 3. Speed nut 2. Belt-cover bracket 4. Locknut (1/4 inch) g188637 Figure 29 1. Locknut (3/8 inch) 5. Existing deck pulley 2. Blower pulley 6. Pulley mount 3. Locknut (3/4 inch) 7. Right spindle shaft 9. 10. 4. Washer 5.
13 Installing the Baffle Parts needed for this procedure: 1 Baffle 1 Carriage bolt (5/16 x 7/8 inch) 1 Flange nut (5/16 inch) 2 Carriage bolt (3/8 x 7/8 inch) 2 Flange nut (3/8 inch) Procedure 1. Remove the 2 existing flange nuts (3/8 inch) and 2 carriage bolts (3/8 x 7/8 inch) from the mower deck (Figure 32). g038289 Figure 33 1. Flange nut (3/8 inch) 4. Flange nut (5/16 inch) 2. Carriage bolt (3/8 x 7/8 inch) 5. Carriage bolt (5/16 x 7/8 inch) 3. Baffle g038113 Figure 32 1.
14 Installing the Blower Assembly Parts needed for this procedure: 1 Blower assembly 1 Pivot pin 1 Roll pin (3/16 x 7/8 inch) g038256 Figure 35 1. Blower assembly 3. Pivot hole 2. Deck 4. Blower-pivot pin Blower Models 78433–78438 2. Verify that the pivot pin is secured on the blower assembly in the correct location (Figure 34). Loosen or remove the guide pin (Figure 35). • If you have a 48-inch or 52-inch mower deck, install the pivot pin in the front hole (Figure 34).
3. Install the belt around the pulleys inside the blower (Figure 37). 7. Close the blower assembly and align the latch pin with the hole in the chute bracket (Figure 38). 8. Move the latch pin to the locking position. Note: Ensure that the latch pin extends through the hole in the chute bracket. Note: Ensure that the latch firmly holds the blower assembly against the mower deck, but you can release it by hand.
3. Lower the blower and slide the pivot pin into the pivot hole (Figure 40). Note: Ensure that the belt remains positioned in the blower pulley. 4. Move the latch pin from the locking position to the open position (Figure 42). g309296 Figure 42 g309295 Figure 40 1. Blower assembly 3. Pivot hole 2. Blower-pivot pin 4. Deck 2. Install the belt around the pulleys inside the blower (Figure 41). 1. Latch pin 4. Idler pulley 2. Chute bracket 5. Belt (beneath the idler pulley) 3.
15 Installing the Blower Belt, Spring, and Blower-Belt Cover Parts needed for this procedure: 1 Blower-belt cover 1 Cover knob Blower Models 78433–78438 1. g018371 Figure 44 Installing the tension spring and aligning the belt Arrange the blower belt around the drive pulley as shown in Figure 43. 1. Blower assembly 6. Spring 2. Latch pin (locking position) 7. Idler-spring post 3. Chute bracket 8. Spring (hook end) 4. Idler-pivot bracket 9. Belt (aligned to the idler pulley) 5.
5. Install the blower-belt cover over the blower belt and secure the blower-belt cover with the belt knob (Figure 45). 2. Install the blower-belt cover over the blower belt and secure the blower-belt cover with the knob (Figure 47). g038117 Figure 45 1. Cover knob 2. Blower-belt cover g309587 Figure 47 1. Knob Blower Models 78401–78406 1. Pull back the spring-loaded idler pulley and route the blower belt around the drive pulley (Figure 46). g309586 Figure 46 1. Blower belt 2.
Note: The hopper seal must protrude outward 16 from the bagger hood. Installing the Discharge Tubes Parts needed for this procedure: 1 Upper tube 1 Lower tube 3 Bolt (#10 x 3/4 inch) 3 Locknut (#10) 3 Washer (7/32 inch) g007027 Figure 49 1. Dimple Procedure 1. Disengage the PTO and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before you leave the operating position. 3. Lower the machine deck to the lowest height-of-cut position.
Note: There is a latch on the top and bottom diameter) where the upper and lower tubes join together (Figure 52). of the blower housing. g003449 g037981 Figure 51 1. Blower assembly Figure 52 3. Latch (twin bagger shown) 2. Lower tube 1. Bagger hood 4. Blower assembly 2. Upper tube 5. Drill holes (7/32 inch) 3. Lower tube 9. Ensure that the machine deck is in the lowest height-of-cut position. 10. Verify that the dimple from Figure 49 is still in place. 11.
13. Join the upper and lower tubes with 3 bolts (#10 x 3/4 inch), flat washers, and locknuts as shown in Figure 53. 18 Checking the Tire Pressure No Parts Required Procedure Increase the tire pressure due to the additional weight. Note: This is not applicable with semi-pneumatic tires. Check and increase the air pressure in the front caster wheels and rear tires (Figure 54). Air pressure in the rear tires: 138 kPa (20 psi) Air pressure in the front caster wheels: 172 kPa (25 psi) g003392 Figure 53 1.
Emptying the Grass Bags Operation Note: Determine the left and right sides of the machine from the normal operating position. WARNING Debris, such as leaves, grass, or brush can catch fire. A fire in the engine area can cause personal injury and property damage. • Keep the engine and muffler area free of debris accumulation. • Take care when opening the bagger cover to keep debris from falling onto the engine and muffler area. • Allow the machine to cool before storing it.
8. Lower the bagger hood over the bags. 9. Latch the bagger hood. Removing the Bagger WARNING Clearing Obstructions from the Bagger System Components around the engine are hot if the machine has been running. Touching hot components can cause burns. • Do not touch the engine hot components. WARNING • Allow engine to cool before removing the bagger. When the bagger is in operation, the blower is rotating and can cut off or injure hands and fingers. 1. Disengage the PTO. 2.
Operating Tips CAUTION As the bagger fills, extra weight is added to the back of the machine. If you stop and start the machine suddenly on hills, you may lose steering control or the machine may tip. Tips for Bagging Remembering the Size • Do not start or stop suddenly when going uphill or downhill. Avoid uphill starts. Remember that the machine is longer and wider with this attachment installed. By turning too sharply in confined places you may damage the attachment.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Inspect the blower belt. • Inspect the bagger. After the first 10 hours • Inspect the bagger Before each use or daily • Clean the hood screen. • Clean the bagger. Every 25 hours • Inspect the blower belt. Every 50 hours • Grease the idler arm (blower models 78433–78438 only).
Inspecting the Bagger Attachment Inspecting the Blower Belt Service Interval: After the first 8 hours Every 25 hours Service Interval: After the first 10 hours Check belts for cracks, frayed edges, burn marks, or any other damage. Replace any belts that are damaged. Before storage Inspect the bagger attachment after the first 10 hours of operation, and monthly thereafter. 1. Check the chute, discharge tube, and the bagger top. Replace these parts if they are cracked or broken.
g309298 Figure 59 g038292 Figure 57 1. Spring-loaded idler pulley 9. 2. Spring 6. Install the belt onto the spring-loaded idler pulley (Figure 57). Greasing the Idler Arm for Blower Models 78433–78438 Blower Models 78401–78406 1. Park the machine on a level surface. 2. Disengage the blade-control switch, engage the parking brake, and move the motion-control levers outward to the NEUTRAL-LOCK position. 3. Shut off the engine and remove the key. 4.
Inspecting the Bagger Replacing the Grass Deflector Service Interval: Every 100 hours After the first 8 hours 1. WARNING Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engeage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Check the upper tube, lower tube, bagger hood, and the blower assembly. Replace these parts if they are cracked or broken. 4.
Storage 1. Empty the bagger attachment; refer to Emptying the Grass Bags (page 29). 2. Inspect the bagger attachment for damage. 3. Ensure that the bags are empty and thoroughly dry. 4. Inspect the belt for wear or cracks; refer to Inspecting the Blower Belt (page 33). 5. Store the machine in a clean, dry place, out of direct sunlight. If you must store the machine outside, cover it with a weatherproof cover. This protects the plastic parts and extends the life of the machine.
Troubleshooting Problem There is abnormal vibration. There is reduced bagging performance. Possible Cause 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The blower pulley or pulley assembly is loose. 4. The blower belt is worn. 5. The blower fan blade(s) is/are bent or unbalanced. 2. Tighten the blade mounting bolt. 3. Tighten the appropriate pulley. 1. Always operate the bagger at full throttle. 2.
Notes:
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
