OWNER OPERA TOR’S OPERAT MANU AL MANUAL 5" and 8" Skid Steer Chipper Models 74500 5" Skid Steer Chipper 74800 8" Skid Steer Chipper (Requires 25 gpm minimum hydraulic flow) Crary Company A Division of TerraMarc Industries 237 12th St. NW • P.O. Box 849 West Fargo, ND 58078-0849 (701)282-5520 • FAX: (701)282-9522 www.bearcatproducts.com www.terramarc.com Manual P/N 13940-00 Rev.
Before you Begin DEAR BEAR CAT CUSTOMER, Thank you for purchasing a Crary Bear Cat Skid Steer Chipper. The Bear Cat Chipper is designed, tested, and manufactured to give years of dependable performance. To keep your chipper operating at peak efficiency, it is necessary to adjust it correctly and make regular inspections. The following pages will assist you in the operation and maintenance of your machine. Please read and understand this manual before operating the chipper.
SERIAL NUMBER LOCATION Always give your authorized Bear Cat dealer the serial number of your Crary Bear Cat Skid Steer Chipper when ordering parts, requesting service or any other information. The serial number decal for Bear Cat Skid Steer Chipper is on the chipper housing at the location called out below. Please record the serial number in the space provided below and on the warranty and registration card.
Section Description Contents Page SAFETY .................................................................................................................................... 1 OPERATION SAFETY ................................................................................................................. 2 FEED ROLLER SAFETY ............................................................................................................. 3 MAINTENANCE AND STORAGE SAFETY ....................................
Chipper Limited Warranty Crary Bear Cat Chippers are warranted for one year from date of sale for consumers and commercial or rental operations. Within the above stated period, Crary Co. will replace any part(s) found to be defective in material and/or workmanship, after the receipt of the part in our plant. Labor costs to replace these defective parts will be paid at a Crary established labor rate and time allowed (flat rate) for repair.
NOTICE For testing purposes, fluids may have been added to this machine prior to shipping. Specifically, this includes hydraulic fluid. Be careful with installing and handling hydraulic lines, hydraulics may be under pressure. Refer to page 10 of the owners manual for specific instructions.
1 Safety Section THE SAFETY ALERT SYMBOL This is the safety alert symbol. It is used in this Owner / Operator’s Manual and on your machine to alert you to potential hazards. Whenever you see this symbol, read and obey the safety message that follows it. Failure to obey the safety message could result in personal injury, death or property damage DANGER Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
Safety 12. Avoid wearing loose fitting clothing. Never operate this machine wearing clothing with drawstrings that could wrap around or get caught in the machine. 13. Check that all screws, nuts, bolts, and other fasteners are properly secured before starting the machine. Check all screws, nuts, bolts, and other fasteners for proper tightness to ensure everything is in proper working condition. Check once in the first two hours and every 10 hours thereafter. 14.
Safety 10. prevents the discharge tube from projecting over the trailer wheels and striking foreign objects. 15. Position discharge chute away from bystanders and other property when opening. 13. Flying debris can cause serious injury or death and property damage. 16. Keep metal objects, rocks, bottles, cans, and other foreign objects out of chipper. 14. Keep bystanders away from discharge chute. 17. Check the bolts torque on the chipper every 10 hours of operation.
Safety SAFETY DECAL LOCATIONS (74500 AND 74800) Familiarize yourself with all of the safety and operational decals on the machine and the associated hazards. Make certain that all safety decals and operational decals on this equipment are kept clean and in good condition. The decals are shown below at reduced sizes. If you need a replacement decal, please refer to the parts catalog. Decals that need replacement must be applied to their original locations.
2 Assembly Section Your chipper may arrive totally or partially assembled. If your machine arrives partially assembled, you may need to perform the steps in this section. ASSEMBLY INSTRUCTIONS (74500 AND 74800) WARNING To prevent personal injury or property damage: Shut off skid steer engine, disconnect hydraulics, remove ignition key and make sure that all moving parts have come to a complete stop, before servicing, adjusting or repairing.
Assembly MOUNTING THE CHUTE The chipper chute must be mounted to the roller support weldment. On the 74800 the chute is held in place with 8 bolts, on the 74500the chute is held in place with 6 bolts. Both models use a chute support. Fig. #7, Mounting the chipper chute support. Fig. #6, Mounting the chute to the roller support. NOTE: The 74800 is mounted with 8 bolts. The 74500 is mounted with 6. Mounting the chute to the roller support: Mounting the chute support: 1.
Assembly MOUNTING THE 4 POSITION VALVE Attaching the 4 position valve: 1. Place the 4 position valve on the chipper chute over the (3) pre-drilled mounting holes. 2. From the inside of the chipper chute, using the 5/16” x 3/ 4” bolts (P/N 15003), and washers (P/N 15250) thread the bolts into the 4 position valve 3. Tighten 5/16” hardware to proper torque. 4. Attach the valve control lever according to the diagram below. 5. Tighten the 5/16” bolt to the proper torque. Fig.
3 Features & Controls Section FEATURES AND CONTROLS IDENTIFICATION Learn the location of the features and controls on your machine before operating. MODEL # 74500 and 74800 DISCHARGE LOCK CONTROL ARM KNIVE ACCESS COVER BOLT CHIPPER CHUTE DISCHARGE DEFLECTOR EXTENSION TRAY DISCHARGE TUBE CHIPPER BLADE ACCESS COVER OWNERS MANUAL COMPARTMENT UNIVERSAL SKID-STEER MOUNT NOTE All references to left, right, front and rear of the machine are determined by the illustrations shown.
Features & Controls FEATURES AND CONTROLS IDENTIFICATION Learn the location of the features and controls on your machine before operating. MODEL # 74500 and 74800 FEED ROLLER HOUSING & FEED ROLLER ROTOR ASSEMBLY CHIPPER BOTTOM FEED ROLLER FEED RATE CONTROL Fig.
4 Operation Section WARNING Before operating your machine, be sure you read and understand all safety, controls and operating instructions in this Owner/Operators manual and on your machine. Failure to follow these instructions can result in serious injury or property damage.
Operation MOUNTING THE CHIPPER TO THE SKID STEER The chipper can be mounted to the skid steer in two locations. The recommended location is with the feed table sitting at the front of the loader. However, if space is a concern, the unit can be mounted with the feed table sitting to the right of the machine. 1. Tilt the universal skid steer mount forward. 2. Make sure that the wedges are fully raised. 3.
Operation INSTALLING THE FLUSH FACE COUPLERS WARNING Hydraulic lines may be under pressure due to testing done at the factory. The Bear Cat Skid Steer Chipper is equipped to attach to flush face couplers (See Fig. #11). The chipper is shipped with 12 sized hydraulic couplers fitted on the hoses. A tie wrap is used to indicate the pressure line. Be sure to connect the hydraulic hoses to the proper ports.
Operation HYDRAULIC SCHEMATIC Fig.
Operation OPERATING THE CHIPPER WARNING Do not attempt to bypass the safety systems of the skid steer loader. Pre-operation 1. Wear appropriate eye, face, and hearing protection. Wear gloves that fit tight against the wrist. 2. Remove the rubber latches from both sides of the feed table. feed roller is in the neutral position) to supply power to the unit. The chipper will start to spin. 3. Place the feed roller in the opeating position and bring the unit up to speed. 4. The chipper is ready to chip.
Operation CHIPPING GUIDE The Bear Cat chipper is designed to chip a variety of materials into a more readily decomposing or handled condition. The following guidelines can be used to help you get started. WARNING Do not leave machine unattended, or attempt any inspection or service unless the skid steer engine is stopped, the hydraulic system disconnected, and the key removed from the key switch. • Never push brush into the chipper chute with your feet.
Operation FEED ROLLER SECURING INSTRUCTIONS WARNING Feed Roller support must be secured in the up position prior to servicing chipper feed area. Feed Roller can fall and cause bodily harm. Before the chipper feed area is serviced, the feed roller support must be locked in the upright position. To secure the feed roller support, proceed as follows. 1. Turn the 1/2" wingnut located on the bottom of the bottle jack to the right, engaging the jack. 2.
5 Service & Maintenance Section WARNING To prevent personal injury or property damage: Shut off skid steer engine, disconnect hydraulics, remove ignition key, and make sure that all moving parts have come to a complete stop before, servicing, adjusting or repairing. MAINTENANCE SCHEDULE The following items listed in the service and maintenance schedule are to be checked, and if necessary, corrective action should be taken. The most important maintenance is to keep the chipper blades sharp.
Service & Maintenance SHARPENING CHIPPER BLADES The chipper blades will eventually become dull, making chipping difficult and adding extra strain on the machine. It is recommended that the chipper blades be sharpened every 5-15 hours of chipper operation.
Service & Maintenance CHIPPER BLADE AND ANVIL CLEARANCE Setting chipper blade clearance 1. The blade to anvil clearance is 1/16” to 1/8”. The chipper must be between these specifications at all times. 2. Adjust the anvil by loosening the two (74500) or three (74800) anvil bolts. 3. On the 74500 move the anvil assembly in or out by turning the nuts on the block adjuster weldment. 4. On the 74800, with the three anvil bolts loosened, adjust the anvil to the desired position. 4.
Service & Maintenance GREASING Use an SAE multi-purpose high temperature grease with extreme pressure (EP) performance meeting or exceeding the NLGI # 2 rating for all requirements. Also acceptable is an SAE multi-purpose lithium based grease. WARNING To prevent personal injury or property damage: Shut off skid steer engine, disconnect hydraulics, remove ignition key, and make sure that all moving parts have come to a complete stop before servicing, adjusting, or repairing.
Service & Maintenance h 50 Fig. #25, Grease every 50 hours Fig. #27, Grease every 50 hours Fig. #26, Grease every 50 hours Fig. #28, Same zerk as Fig. #26, shown with shield removed. WARNING The shield was removed for illustrative purposes only; DO NOT run the machine without guards or shields in place and functioning.
Service & Maintenance CLEANING PLUGGED ROTOR WARNING If the machine becomes plugged, shut off the skid steer engine, disconnect the hydraulics, remove ignition key, and allow the machine to come to a complete stop before clearing debris. Do not operate machine without proper guards and screens in place. Cleaning the Rotor: 1. Stop skid steer engine, disengage hydraulics, and allow machine to come to a complete stop.
Service & Maintenance TROUBLESHOOTING Before performing any of the correction in this troubleshooting chart, refer to the appropriate information contained in this manual for the correct safety precautions and operating or maintenance procedures. Contact your nearest dealer or the factory for service problems with the machine. Problem Feed roller does not engage. Chipper is hard to feed. Possible Cause Low hydraulic flow due to low engine RPM. Move loader engine speed to higher RPM.
Specifications 5” and 8” Skid Steer Chipper (Model 74500 and 74800) "H" "I" "A" "C" "G" "E" "F" "D" "B" MODEL 74500 & 74800 DIMENSIONAL DATA MODEL "A" "B" "C" "D" "E" "F" "G" "H" "I" 74500 91.9 102.2 56.4 46.0 48.1 49.2 23.3 29.6 6.0 74800 92.2 103.3 59.6 46.0 45.4 56.5 23.6 37.8 8.
Specifications BOLT TORQUE REQUIREMENTS The tables shown below give correct torque values for various bolts and capscrews. Tighten all bolts to the torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using this bolt torque chart as a guide. Fasteners should be replaced with the same grade bolt. Tighten serrated or center-lock nuts to the full torque value. Do not use these values if a different torque value or tightening procedure is given for a specific application.
Crary Company A Division of TerraMarc Industries 237 12th St. NW • P.O. Box 849 West Fargo, ND 58078-0849 (701)282-5520 • FAX: (701)282-9522 www.bearcatproducts.com Manufactured in the United States of America by Crary Company www.terramarc.
