Owner’s Manual Chipper/Shredder MODEL NUMBER: _________________________ SERIAL NUMBER: _________________________ DATE PURCHASED:________________________ Register your Generac product at: WWW.GENERAC.
WARNING CANCER AND REPRODUCTIVE HARM www.P65Warnings.ca.gov.
Table of Contents Section 1: Safety Rules & General Information Section 4: Maintenance and Troubleshooting Introduction ..................................................................1 Read This Manual Thoroughly ....................................1 Maintenance ...............................................................21 Safety Rules .................................................................1 How to Obtain Service .................................................1 Changing Engine Oil ..
This page intentionally left blank.
Safety Rules & General Information Section 1: Safety Rules & General Information Introduction Thank you for purchasing this Generac Pro Chipper/ Shredder. This unit has been designed to provide highperformance, efficient operation, and years of quality use when maintained properly. The Generac Pro Chipper/Shredder is designed and built for consistent, reliable use for chipping and shredding projects. It is built to withstand frequent handling under these conditions.
Safety Rules & General Information General Hazards DANGER WARNING Personal injury. NEVER attempt to dislodge debris from discharge chute or hopper while unit is running. The cutting blades can start again at any moment, which will result in death, serious injury, or equipment damage. (000508) DANGER WARNING Personal injury. NEVER insert body parts or metal objects in the discharge chute or hopper for any reason while the unit is running.
Safety Rules & General Information WARNING Environmental Hazard. Always recycle batteries at an official recycling center in accordance with all local laws and regulations. Failure to do so could result in environmental damage, death or serious injury. (000228) WARNING Hearing Loss. Hearing protection is recommended when using this machine. Failure to wear hearing protection could result in permanant hearing loss. (000107) WARNING Equipment damage. Do not use as a tow or drag vehicle.
Safety Rules & General Information Fire Hazards WARNING Risk of Fire. Verify machine has properly cooled before installing cover and storing machine. Hot surfaces could result in fire. (000109) WARNING Risk of fire. Never operate engine without the air cleaner installed. Operating engine without the air cleaner could result in death or serious injury. (000249) WARNING Risk of fire. Never operate engine without the carburetor air intake cover installed. Doing so could result in death or serious injury.
Safety Rules & General Information Safety and Operating Decals See Figure 1-1. This unit features numerous safety and operating decals. These decals provide important operating instructions and warn of dangers and hazards. The following diagrams illustrate decal locations and descriptions. Replace any missing or hard-to-read decals and use care when washing or cleaning the unit. Decal part numbers can be found in the unit parts manual at www.generac.com. Item No.
Safety Rules & General Information 11 1 10 9 Among engine exhaust emissions. there toxic CO.so never use in an enclosed room without good ventilation. Check that there is no any fuel spilling or fuel leakage.Filling fuel before stopping the engine is forbidden. 2 8 7 3 6 5 4 007860 Figure 1-1.
General Information and Setup Section 2: General Information and Setup Specifications Engine Generac G-Force Engine Starting Electric with recoil backup Oil Capacity 37 oz (1.1 L) Fuel Capacity 7 qt (6.53 L) Chipping Capacity 5 in (12.7 cm) diameter Max. Road Towing Speed 45 mph (72 km/h) Number of Chipper Knives 1 Chipper Knife Size 5.25 in x 1.25 in x 0.375 in (14 cm x 3.2 cm x 9.
General Information and Setup Components and Controls N H O P M I L G J Q K F A R B D C E 006395 Figure 2-1.
General Information and Setup Know Your Chipper/Shredder Parts Supplied in Hardware Bag Description Qty 5/16 in - 18 x 3/4 in Carriage bolt 4 5/16 in - 18 x 3/4 in Bolt 4 5/16 in Flat washer, USS 8 5/16 in - 18 Lock nut 8 3/8 in - 16 Lock nut 4 3/8 in - 16 x 3 in Bolt 3 1/2 in - 13 x 3 in Bolt 2 1/2 in - 13 Gripco™ lock nut 2 3/8 in - 16 x 3.5 in Bolt 1 3/8 in Flat washer 2 Remove Contents From Carton 5/16 in - 18 x 1 in Bolt 4 See charts below for list of included parts.
General Information and Setup 3. Attach rear of tow bar to rear of frame support using a 3/8 in - 16 x 3 in bolt and 3/8 in - 16 lock nut. Secure loosely. 4. Attach tow bar to front frame support using a 3/8 in - 16 x 3 in bolt and 3/8 in - 16 lock nut and tighten. 5. Tighten bolt from step 3. 2. Install flat washer, then lock nut on each bolt. Install bolts and nuts and finger tighten. Tighten the nuts one turn. Verify hopper is centered on inlet chute, and then tighten securely.
General Information and Setup Positioning the Baffle Plate 1. See Figure 2-6. Remove baffle rod (A) and hair cotter pin (B). A A B 006967 Figure 2-8. Sensor Wire Connection 006464 Figure 2-6. Baffle Rod and Locknut 2. See Figure 2-7. Install baffle rod and locknut underneath baffle plate (C) to hold it in discharge position. C 2. Find a suitable path for the sensor wire leading to the engine spark plug. Use two cable ties to secure the wire to the handlebar or frame.
General Information and Setup IMPORTANT NOTE: The unit is shipped without oil in engine. Traces of oil may be in reservoir from factory testing. Oil must be added prior to initial operation. Use only the recommended high detergent engine oil. See Engine Fluid Requirements. 1. Place unit on a firm, level surface. Verify engine is cooled. NOTE: The unit is shipped without fuel. Fuel must be added prior to first starting attempt. 1. Place unit on a firm, level surface. Verify engine is cooled. 2.
General Information and Setup 1. See Figure 2-12. Remove valve stem protective cap (A) and check tire pressure using a tire pressure gauge. High Altitude Replacement Kit The standard carburetor air-fuel mixture is too rich at high altitudes for this unit. Performance decreases and fuel consumption increases. A rich mixture also fouls the spark plug and causes hard starting. Operation for extended periods of time at an altitude that differs from what the engine was certified for may increase emissions.
General Information and Setup This page intentionally left blank.
Operation Section 3: Operation Operation and Use Questions Call Generac Customer Service at 1-888-GENERAC (1888-436-3722) with questions or concerns about unit operation and maintenance. Operator Zone Before Starting Engine Discharge Area WARNING Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury. (000100a) WARNING CAUTION Equipment damage.
Operation 2. See Figure 3-2. Set fuel shutoff valve (A) to open. WARNING Personal injury. Do not operate the unit with the hopper or discharge chute removed. Doing so could cause death, serious injury, property or equipment damage. (000513a) WARNING C B A 006493 Equipment damage. Do not overload unit or attempt to chip/shred material beyond the manufacturer’s recommendation. Doing so could result in death, severe injury, or equipment damage. (000515) Figure 3-2. Engine Controls 3.
Operation • Verify all material in hopper is processed before shutting off engine. • Trim off side twigs before chipping. • Rotate branches while feeding into unit to improve performance and reduce chance of a tail. • Green wood processes easier than dry wood. • Softwood processes easier than hardwood. WARNING Personal injury. Securely fasten chipper hopper to unit prior to use. Failure to do so could result in serious injury, property or equipment damage.
Operation Shredder Hopper • Feed limited quantities of material into shredder hopper. Increase quantity as suitable. Decrease quantity if engine speed decreases. This amount will vary based on material being shredded. DANGER Personal injury. NEVER attempt to dislodge debris from discharge chute or hopper while unit is running. The cutting blades can start again at any moment, which will result in death, serious injury, or equipment damage.
Operation WARNING Accidental start-up. Before servicing or detangling, shut down unit, allow to cool, remove keys, and disconnect spark plug wire(s). Failure to do so could result in death, serious injury, or equipment damage. (000415) 1. See Figure 3-3. Remove hair cotter pin (A) at end of baffle retaining rod, and remove baffle retaining rod. CAUTION Personal injury. Wear appropriate personal protective equipment at all times while operating and servicing unit.
Operation This page intentionally left blank.
Maintenance and Troubleshooting Section 4: Maintenance and Troubleshooting Maintenance Regular maintenance will improve performance and extend engine/equipment life. Generac Power Systems, Inc. recommends that all maintenance work be performed by an Independent Authorized Service Dealer (IASD). Regular maintenance, replacement, or repair of the emissions control devices and systems may be performed by any repair shop or person of the owner’s choosing.
Maintenance and Troubleshooting Procedure Before Each Use Check engine oil level Inspect general equipment condition Verify tire pressure Verify shaft turns freely Clean engine exterior and cooling fans Inspect or replace air filter and foam pre-cleaner Inspect knife for damage Lubricate side bearings Every 8 Hours Every 25 Hours Every 100 Hours Inspect rotor hammers/spacers for wear Change engine oil 1st time 5 hours Inspect belt tension and condition 1st tim
Maintenance and Troubleshooting Changing Engine Oil 7. Attach the spark plug wire. Changing Air Filter WARNING Accidental start-up. Before servicing or detangling, shut down unit, allow to cool, remove keys, and disconnect spark plug wire(s). Failure to do so could result in death, serious injury, or equipment damage. (000415) WARNING Risk of fire. Never operate engine without the air cleaner installed. Operating engine without the air cleaner could result in death or serious injury.
Maintenance and Troubleshooting the inside. Never attempt to brush off dirt; brushing will force dirt into fibers. b. Foam air filter element: Clean in warm soapy water, rinse, and air dry thoroughly. Or, clean in nonflammable solvent and air dry thoroughly. Dip filter element in clean engine oil, and remove excess oil. Engine will smoke when started if too much oil remains in the foam air filter element. 4. See Figure 4-4. Measure spark plug electrode gap (C) with a suitable gauge. The gap should be 0.
Maintenance and Troubleshooting B A 006495 006466 Figure 4-7. Belt Tension Figure 4-5. Side Bearing Grease Fitting 2. See Drive Belt Maintenance. Remove the belt guard to access the drive side bearing. 3. Apply three pumps or fewer of quality general-purpose lithium grease with a hand-pumped grease gun to each grease fitting. 4. Inspect the side bearing collar set screws (B) for tightness. There are two set screws for each side bearing. Reset them with medium strength threadlocker if loose. 5.
Maintenance and Troubleshooting Chipper Knife Sharpening WARNING Accidental start-up. Before servicing or detangling, shut down unit, allow to cool, remove keys, and disconnect spark plug wire(s). Failure to do so could result in death, serious injury, or equipment damage. (000415) Knife sharpening should only be done by an IASD. The following points must be considered: • A 45° angle must be maintained for proper perfor006510 Figure 4-9. Belt Alignment Check mance.
Maintenance and Troubleshooting 2. Rotate chipper disk using a stick until three countersunk hex screws attaching chipper knife to flywheel are visible. chipper knife. Set clearance to 1/16 in (1.6 mm). An incorrectly set gap will cause poor performance. 3. Clean out heads of hex screws with an awl or sharp tools. A 4. See Figure 4-12. Insert a wood block to prevent flywheel from moving, and remove hex screw. B 1/16 in 006514 Figure 4-13. Chipper Knife to Wear Plate Gap 1.
Maintenance and Troubleshooting 6. Tighten nuts once wear plate is correctly positioned. NOTE: Rotate chipper disk and inspect for any unusual noises, clicking, or vibrations. Inspect for damage or loose parts if there is any noise. Repair or replace parts as needed. C B 7. Connect negative battery terminal cable and spark plug wires. Adjusting Shredder Hammers 006517 WARNING Figure 4-17. Hammer Rod Accidental start-up.
Maintenance and Troubleshooting 4. Clean engine crankshaft and remove any burrs. Apply anti-seize compound to crankshaft. WARNING Personal injury and equipment damage. Do not tamper with engine governed speed. Operating engine too fast or slow increases the risk of injury or permanent engine damage. (000254) 5. Install key in keyway of new clutch hub, align key with slot in engine crankshaft, and slide new clutch assembly onto shaft. 6. Secure clutch with washer, lock washer, and clutch bolt. 7.
Maintenance and Troubleshooting Follow the recommendations below for battery’s best performance. • Inspect chipper knife, hammers, and wear plate for • Do not allow battery to discharge completely or • Remove any debris wrapped around hammer rotor. • Remove spark plug and add 1 oz (29.6 mL) of excessively. Charge battery every 4–6 weeks if unit is not being used. Operate engine for at least 45 minutes to maintain proper battery charge. • Store unused batteries in a dry area that does not freeze.
Maintenance and Troubleshooting Troubleshooting WARNING Accidental start-up. Before servicing or detangling, shut down unit, allow to cool, remove keys, and disconnect spark plug wire(s). Failure to do so could result in death, serious injury, or equipment damage. (000415) Symptom WARNING Risk of Burn. Allow the engine to cool before performing the following procedure. Failure to do so could result in serious injury. (000560) Possible Cause Verify correct startup procedure. See Starting the Unit.
Maintenance and Troubleshooting Symptom Possible Cause Verify throttle lever is in FAST position to engage clutch. Verify drive belt is correctly installed, undamaged, and correctly tensioned. Engine runs, but flywheel doesn’t rotate Inspect for debris in chipper/shredder hopper inlets and discharge chute. Clean as necessary. Inspect inner shoes of clutch and clutch shoe retaining springs for wear or damage. Replace clutch if damaged. Engine speed too slow. Inspect belt for slippage.
Schematic Section 5: Schematic Chipper/Shredder Rotor Assembly with Hammers Owner’s Manual for Chipper/Shredder 33
Schematic This page intentionally left blank.
Part No. 10000024599 Rev. B 08/08/2018 ©2018 Generac Power Systems, Inc. All rights reserved Specifications are subject to change without notice. No reproduction allowed in any form without prior written consent from Generac Power Systems, Inc. Generac Power Systems, Inc. S45 W29290 Hwy. 59 Waukesha, WI 53189 1-888-GENERAC (1-888-436-3722) www.generac.
