o w n e r ' s m a n ua l 9 inch chippers 72928 - 28 HP diesel hyd 72942 - 42 hp hyd 74950 - 50 hp MADE WITH PRIDE IN THE...
Before You Begin DEAR CRARY BEAR CAT CUSTOMER Thank you for purchasing a Crary Bear Cat product. The Crary Bear Cat line is designed, tested, and manufactured to give years of dependable performance. To keep your machine 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 your machine.
LIMITED WARRANTY This warranty applies to all AG and Outdoor Power Equipment manufactured by Crary Industries. Crary Industries warrants to the original owner each new Crary Industries product to be free from defects in material and workmanship, under normal use and service. The warranty shall extend 1 year from date of delivery for income producing (commercial) applications and 2 years from date of delivery for non-income producing (consumer) use of the product.
C O N T E N T S Contents Section 1: Safety Instructions ..................................................... 2 1.2 Safety Decals .................................................................................... 4 Section 2: Assembly, Controls, and Operation .......................... 5 2.1 Assembly .......................................................................................... 5 2.1.1 Attach the Trailer Wheels ............................................................. 5 2.1.
SECTION 1 Safety Instructions This chipper is designed and tested to offer reasonably safe service. However, failure to operate it in accordance with the following safety instructions MAY RESULT IN PERSONAL INJURY! Before Operating 1. Become familiar with the owners manual before attempting to operate this equipment. See engine owners manual for additional safety information. 2. Do not allow children to operate this equipment. 3. Do not operate this equipment in the vicinity of bystanders. 4.
SECTION Failure to maintain proper fastening torque (75 ft. lbs.) on bolts for the components listed above may result in severe damage to the chipper and/or personal injury. 5. Do not allow processed material to build up in the discharge area; this may prevent proper discharge and can result in kickback of material through the feed opening. 6. Do not attempt to operate the chipper with any of the guards, deflectors, or shrouds removed. Keep away from moving parts. 7.
SECTION 1 DANGER 1) Become familiar with the Owners Manual before attempting to operate this equipment. 2) Do not allow children to operate this equipment. Do not operate this equipment in the vicinity of bystanders. 3) Carbon Monoxide can be extremely dangerous in enclosed areas: do not run the machine in an enclosed area since the exhaust from the engine contains carbon monoxide.
SECTION 2 2.1 Assembly Your chipper may arrive totally or partially assembled. If your chipper arrives partially assembled, you may need to perform the steps in this section. 2.1.1 Attach the Trailer Wheels 1. Remove the chipper from its shipping crate. Place the unit on a level surface before attempting to assemble it. See the Torque Chart at the bottom of page 8 for minimum tightening torque of bolts and screws.
SECTION 2 weldment as shown in figure 2.1. Use a 3/8" x 2-1/2" bolt, washers, and nut to attach the two safety chains with hooks as shown. 4. Push the top link pin through the holes in the hitch and trailer. Secure the top link pin with a lynch pin. Adjust the hitch to make the chipper trailer as level as possible when connected to the towing vehicle. 2.1.3 Attach the Chute Support Attach the chute support to the trailer using one 3/8" x 1-1/4" bolt, washer, and locknut. Refer to figure 2.1. 2.1.
SECTION 2.1.7 Attach the Blower Discharge Tube Attach the blower discharge tube to the mounting flange on the chipper frame (see figure 2.4). Half of the mounting clamp is already attached to the tube. Slide the tube into the flange and tighten the bolts to secure it. Install the second half of the clamp to the tube and flange. Rotate the tube 360 degrees and lock it in place with the handle to make sure it is mounted correctly. 2 2.1.8 Adjusting the Hydraulic Feed Control Cable Figure 2.
SECTION 2 1. Install battery (not included: use group 22F 300 CCA min), connect positive and ground battery cables, and check battery condition. Charge if needed. Note: If needed, a larger group UB72 battery may be used. Use caution when connecting battery cables near fuel. A spark could ignite the fuel and cause a fire. 2. Fill the engine with oil (per instructions in supplied engine manual) and fill the fuel tank with fuel.
SECTION 2.2 Identification 2 control, Murphy switch, gauges, and choke control (gas engine models only). 1. Extension Tray: Assists in feeding chipping material. Folds for towing. 7. Fuel Tank: Fuel level indicator is located on top. 8. Pintle Hitch: Always use safety chains when towing chipper. 2. Feed Control Lever: Move the arm forward to increase the feed rate. Push back to reverse the feed. 3. Chipper Chute: Feeds materials to the chipper blades for chipping. 9.
SECTION 2 2.3 Operation 2.3.1 Starting: 28 & 50 HP Kubota Model CAUTION: Move machine to a clear, level area paved, concrete, or gravel surface. Do not operate in the vicinity of bystanders. Make sure cutting chamber is empty before starting. 1. Before starting, fill engine with oil to the correct level. See engine manual for additional starting, operation, and maintenance instructions. NOTE: Some oil usage is normal. Check level with each use. WARNING: Handle fuel with care. It is highly flammable.
SECTION 2.3.3 Starting: 42 HP Ford Models CAUTION: Move machine to a clear, level area outdoors before starting. Do not operate machine on a paved, concrete, or gravel surface. Do not operate in the vicinity of bystanders. Make sure cutting chamber is empty before starting. 1. Before starting, fill engine with oil to the correct level. See engine manual for additional starting, operation, and maintenance instructions. NOTE: Some oil usage is normal. Check level with each use.
SECTION 2 2.4 Chipping The Crary 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. Please read and follow all safety instructions in this manual. Failure to operate the chipper in accordance with the safety instructions MAY RESULT IN PERSONAL INJURY! 1. Be sure the unit is at full operating speed before you start to chip material. 2.
SECTION 2 2.6 Electronic Feed Sensor Installation Insructions Warning! Shut off the engine and make sure all moving parts are completely stopped before inspecting or servicing the machine. Installation Instructions: All Models 1. Remove drive shaft joint shield ring (PTO only). 2. Remove upper belt guard. * If the serial number is equal to or greater than X01249, skip to step # 7. 3. Replace sprocket set screw with the 5/16" x 1-1/2" bolt provided. (See figure 1) 4.
SECTION 2 14. Replace the belt guard.
Electrical Installation: PTO Models 1. Attach the chipper to the tractor. Connect the Red positive lead to a +12 Volt DC power source on the tractor. 4. Connect the two-pin connector to the top of the valve coil. 2. Crimp a ring terminal onto the Black, Ground lead. 5. Connect the socket connector to the LOFA control. 3. Drill a 3/16" hole in the PTO stand, close to the solenoid valve, and and secure the ground wire with the #10 self-tapping screw provided. 6.
Feed Sensor Programming Instructions Step 1. Initiating Program Mode 1. Hold down the "S" button while turning the engine key to the "on" position until "L" starts to flash on the LCD. Step 2. Enter Low (L=Low) RPM The low setting is the RPM speed where the feed roller stops. The "up" arrow increases the RPM setting, while the "down" arrow decreases the RPM setting. Setting the speed lower causes the engine to lug down more before the feed roller stops. 1.
SECTION 3.
SECTION 3 WARNING: Before inspecting or servicing any part of the machine, shut off the engine, and make sure all moving parts have come to a complete stop. The chipping blades are sharp! Use care when working on machine to avoid injury. Use short grinding times and cool with water. Try to remove an equal amount off each blade to maintain balance. Replace the chipping blades and tighten bolts to 75 ft. lbs. Close cover and replace bolts. WARNING: The rotor assembly has a lock mechanism.
SECTION • The base of the cutting edge is worn or has been resharpened so that it is too close to the rotor chipping slot. 3.1.2 Setting Chipping Blade Clearance The four chipping blades should clear the chipper anvil located directly under the chipper chute by 1/16 inch to 1/8 inch. The chipper anvil is adjustable and reversible. 3 3.1.3 Adjusting Drive Belt Check the condition of the drive belt annually or after every 25 hours of operation, whichever comes first.
SECTION 3 6. Replace hydraulic pump belt. Readjust hydraulic pump belt tension by sliding the hydraulic pump in the mounting slots. Tighten bolts. 7. Replace belt guard. 8. Depress foot clutch pedal, start engine, release foot clutch pedal to engage belt, and test unit. Readjust pulleys and belt tension if needed. WARNING: The rotor assembly has a lock mechanism. When working on the rotor assembly, use the lock mechanism at all times. Remove plastic bearing cover under the chipper chute.
SECTION 3.1.7 Greaseable Bearings and Pivots 3 3.2 Hydraulic Feed Maintenance The chipper has five greaseable bearings and pivots that require grease every 50 hours: • Two bearings on the rotor shaft. • One greaseable bushing on the foot pedal pivot. • One grease zerk on idler pivot. • One grease zerk on discharge chute. Service engine according to engine manual. Change engine oil and filter as recommended in manual. 3.1.8 Trailer Service Tips 1. Check wheel bolt torque every 10 hours of towing use. 2.
T R O U B L E S H O O T I N G Troubleshooting Problem Probable Cause Suggested Remedies Reference 1. Rotor does not turn a) Obstructed discharge b) Plugged rotor a) Use branch or similar object to clear discharge b) Clear rotor Service and Maintenance 2.
S P E C I F I C A T I O N S Specifications Model 72928 Model 72942 Model 74950 Overall Size (LxWxH) 119" x 79" x 89" 119" x 79" x 89" 119" x 79" x 89" Max. Chipper Cap. (dia.) 9" 9" 9" Chipper Blade Qty. 4 Reversible Tool Steel 4 Reversible Tool Steel 4 Reversible Tool Steel Rotor Speed 1500 RPM 1500 RPM 1500 RPM Rotor Size 30" Dia. x 1.25" 30" Dia. x 1.25" 30" Dia. x 1.25" Rotor Weight 275 lbs. 275 lbs. 275 lbs. Rotor Shaft Diameter 1.75" 1.75" 1.
SECTION 3 Replacement & Maintenance Chart Note: When ordering replacement parts, be sure to identify the Model and Serial number of the machine.
Declaration of Conformity The undersigned manufacturer: Crary Industries, Inc. 237 NW 12th Street P.O.
Declaration of Conformity The undersigned manufacturer: Crary Industries, Inc. 237 NW 12th Street P.O.
Crary Bear Cat 237 NW 12th Street, West Fargo, ND 58078-0849 Phone: 701.282.5520 • Toll Free: 800.247.7335 Fax: 701.282.9522 E-mail: service@crary.com • opesales@crary.com www.BearCatProducts.
