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PROPER USE, WARNED OF ITS DANGERS, AND SHOULD READ THE ENTIRE MANUAL BEFORE ATTEMPTING TO SET-UP, OPERATE OR SERVICE THE MACHINE. TURFCO MFG. INC. 1655 101st. Avenue NE ● Minneapolis, MN 55449-4420 USA Phone (763) 785-1000 ● FAX (763) 785-0556 Internet - www.turfco.com ● E-Mail - service@turfco.com 2013 Turfco Mfg., Inc.
Description - CR-7 Top Dresser Intended Use ..................14 Location and Description of the Operator Position ............... 14 Location and Description of the CR-7 Major Components ........... 14 Location and Description of the Operator Controls ............... 17 Operation - CR-7 Operator Position ......................18 CR-7 Top Dresser Operating Speeds ...................
The CR-7 is not intended to be operated unless it is properly hitched to the tractor. Maximum ground speed up to 12.8 Km/h (8 MPH). The CR-7 is intended to be used only when the operator is present at the drivers position on the tractor.
PRODUCT IDENTIFICATION Product Identification ● Locate the Turfco serial tag on the front of the machine (refer to Figure 1). Check the first 5 numbers, the product number will be 85470. Record the serial number in the Product Records section (printed below).
FAX: (763) 785-0556 work area. E-mail: service@turfco.com Internet: www.turfco.com Registered Trademark and Patents TURFCO CR-7 is covered by US Patent 6,149,079, 6,508,419 and 6,817,552 ® TURFCO , WIDESPIN™ and METE-R-MATIC are registered trademarks of Turfco Manufacturing, Inc. ® ®...
SAFETY Recognizing Safety Warnings Used In Manual LOOK FOR THE SAFETY HAZARD WARNING SYMBOL The symbol is used to alert the operator of safety hazards. It is used in conjunction with the words DANGER, WARNING, and CAUTION. DANGER WARNING CAUTION “DANGER”...
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SAFETY hard object. This may cause the flywheel to shatter in determine a safe speed based on the equipment, the operation. load, the slope, the surface, and other conditions that may affect safe operation. ● Pull the starter cord slowly until resistance is felt. Then pull the cord rapidly to avoid kickback and to prevent ●...
● Use 1/2”-20 x 4” inch hex head screws [3] with flat Inspect entire machine. Check for damage. washers [4], and nuts [5]. Do not remove the spinner assembly from the inside of the hopper until the CR-7 has all four tires attached. [12] [13]...
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CR-7 frame. ● Raise only one side of the CR-7 at a time. Jack only ● The hardware to attach the spinner assembly to the high enough to allow the shim [6] to be removed frame is factory installed in the top dressers rear and the tire to be installed.
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Step H. (See Figure 4) Install the rear shield [10] to the rear of the CR-7. ● Install the shield to the CR-7 frame. Use 1/4” x 5/8” hex head Whiz-Lock screws [25] and nuts [26] (Quantity 4 - 2 per side).
TRACTOR REQUIREMENTS take a sharp turn without the CR-7 striking any part of The CR-7 Unit is designed to be towed and powered the tractor. Two bolts must always be used to hold the by a tractor.
STEP 4. (See Figure 8) Place at the hand held ON/ hitch pin. The height of the tractor hitch should be set OFF control box [F] at the operator position on the so that the tongue of the CR-7 unit sets level with the tractor. ground.
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Refer to the Tractor’s operator’s manual for proper positive (+) battery terminal. operation of the hydraulic controls. ● Check the fuse in the fuse holder [L] on the CR-7 WARNING power supply cable. The fuse should be a 6 AMP.
DESCRIPTION Description INTENDED USE OF THE CR-7 TOP DRESSER ● Do Not Allow Riders On or In the CR-7. Do Not Ride On or In the CR-7. The Turfco CR-7 Top Dresser (Turfco Product No. ● Do Not Allow Anyone To Stand Behind the CR-7 85470) is a towed type top dresser and material When it is Operating.
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The hydraulic motor and out to the discharge end of the CR-7. The conveyor is located on the right rear of the CR-7. belt is controlled by the Hand Held ON/OFF Control [6] Spinner Assembly and Spinner Wheels: The Box switch.
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The spinner assembly can also be removed to allow the electric solenoids in the hydraulic system. The power CR-7 to be used as a material handler for top dressing. supply cable is connected to the tractor battery (12 volt While stationary, the material can be dispensed in DC, negative [-] ground).
[11] Jackstand: The adjustable height jackstand is located on the tongue. The jackstand provides support [15] Conveyor Belt Speed Control: The Conveyor to the front of the CR-7 when it is not hitched to the Belt Speed Control is located under tractor.
CR-7 MAXIMUM ANGLES OF OPERATION The proper location for the CR-7 operator is seated on Do not tow or operate the CR-7 on side slopes over 15º the tractor seat. Always stop the tractor engine, set the degrees. Do not tow or operate the CR-7 up or down tractor brakes, and disengage hydraulic power to the slopes over 15º...
Determine if the tractors hydraulic system requires a warm-up period before operating the ● Check - Visually inspect the inside of the CR-7 CR-7. hopper for tools, shovels, rocks or debris remaining from earlier use. Hopper must be empty.
Heavy Spread Adjustments to the Spinner position “A”. Assembly and Metering Gate. Adjusting Spinner Wheel Vanes Setting CR-7 Metering Gate See Figures 13 and 14 The metering gate opening size is indicated in two Changing the vane mounting angle is necessary during ranges, a green “A to G”...
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OPERATION HEAVY SPREADS LIGHT AND NORMAL SPREADS WARNING TO AVOID SERIOUS INJURY, Always Stop the Engine Before Making Any Light or Heavy Spread Adjustments. A - G G - H LIGHT AND NORMAL SPREAD HEAVY SPREADS ADJUST METERING GATE ADJUST METERING GATE IN THE LIGHT TO NORMAL WITHIN HEAVY SPREAD SPREAD RANGE “A”...
26° degrees (12° degrees down to 14° Note: When an attachments is installed on the CR-7, degrees up). The tilt angle can be changed up or down the spinner speed control will control the attachment to vary or correct the width of spread without changing speed.
To Avoid Damage to the CR-7 Top Dresser and the Tractor, Do Not Operate the Top Dresser If the CR-7 is going to be removed from the tractor, On Side Slopes Over 15° Degrees, or Up and refer to the manual for the Mounting Kit Manual.
Dressing Type Or Moisture Level. Refer To machine with missing or damaged guards. Service Level Personnel. Diverter in Wrong Position. Refer To ● Inspect entire CR-7 and the spinner assembly Operation Section In This Manual. for damaged or inoperable components. Do not Unscreened Material In Hopper.
Skin And Force Oil Into The Body. This Can Cause Severe Injury Or HYDRAULIC FLUID Death. The hydraulic fluid in the CR-7 top dresser is supplied WEAR SAFETY GLASSES!! by the tractor. When refilling the tractor, check the type of fluid used (vegetable or petroleum based).
207 kPa (20 PSI). DO NOT OVER INFLATE TIRES. ● Check for a buildup of top dressing material on the If tire is flat, DO NOT MOVE the CR-7 Unit, damage to inside of the conveyor belts. the tire can result.
If belt still does not operate properly, reset the screws to 19 mm (3/4” inch) and check for Step 2. Fully load the CR-7 hopper with top dressing problems elsewhere. material and operate the conveyor belt. It is normal...
HYDRAULIC SYSTEM system are present, flush the hydraulic system in the Pressure In Hose: The hose is connected to the CR-7 CR-7 before attaching the hoses to the tractor. See at a tee fitting with the pressure relief valve.
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● Tractors not providing adequate hydraulic flow or control. The valves is a “normally open” type valve electrical power. Check fuse in CR-7 harness. allowing the hydraulic flow to bypass the spinner speed ● Bad electrical connection with the tractor. Insufficient control unless it is activated.
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SERVICE LEVEL MAINTENANCE Conveyor Belt Solenoid ON/OFF Valve: This The conveyor belt speed control does not have any valves controls the hydraulic flow to the conveyor belt user serviceable parts. If the valve is malfunctioning, it hydraulic speed control. The valves is a “normally will need replacement.
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The direction of rotation is opposite from each other. excessive pressure can build up in the CR-7 resulting The right hand spinner wheel rotates counterclockwise, in a safety hazard and cause serious damage to the the left hand spinner wheel rotates clockwise (as CR-7 hydraulic system.
(+) battery terminal. After reassembling the control box switch, check the Connection to the CR-7 is at a plug on the main wiring operation of the switch. The switch must operate harness located under the left hand fender.
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SERVICE LEVEL MAINTENANCE BATTERY 12 VDC BLACK GREEN FUSE 6 AMP GREEN SPINNER SOLENOID WHITE BLACK CONVEYOR SOLENOID BLACK (-) FIGURE 18 WHITE (+) CONVEYOR SOLENIOD VALVE BLACK (-) SPINNER SOLENIOD VALVE FUSE GREEN (+) ELECTRICAL POWER SUPPLY HARNESS MAIN WIRING HARNESS BLACK...
To Avoid Damage to the CR-7, If an tire is flat, avoid moving the CR-7 Unit. The flat tires Lift and Secure the CR-7 With Jacks Supporting can rub on the frame or against other components.
SERVICE LEVEL MAINTENANCE Adjusting Spinner Wheel Vanes See Figure 20 and 21 INSIDE LOCKING SCREW WARNING SLOT TO AVOID SERIOUS INJURY, VANE (SHOWN IN Always Stop the Engine Before Making Any Light LIGHT SPREAD and Heavy Spread Adjustments to the Spinner POSITION) Vanes.
Ensure that the hoses do not rub on the tires or the axle beam. Step 3. Disconnect the spinner assembly’s two quick- Step 8. Replace the deflector to the rear of the CR-7. disconnect hydraulic hoses. One hose is connected to the spinner assembly’s left hand spinner motor, the other is connected to the right hand spinner motor.
45 degree angle cut. This end (without Step 1. Operate the conveyor until the splice in the belt the 45° cut) will be inserted into the CR-7 first. is in line with the hole in the rear of the frame. Check...
PARTS LISTS Lower Frame, Axles and Hitch PL85470-01 85470RevB...
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Nut, Hex, 5/8”-11 Nylock .................2 668465 Clevis Weldment ..................2 660668 Screw, Hex Head, 1”-14 x 5”..............2 499424 Washer, Flat, 1.062 ID x 2” OD x 0.14” Thick .........2 668515 Washer, Lock, 1” ..................2 668516 Nut, Hex, 1”-14 ..................2 668439 Frame, CR-7 Carriage ................1 85470RevB...
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PARTS LISTS Conveyor Belt, Pan and Rollers PL85470-02 85470RevB...
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PARTS LISTS Conveyor Belt, Pan and Rollers Item Part Description Qty. 668039 Roller, Extruded, (1530 Idler Roller) ............1 653393 Spacer, Rear, Idler Roller................2 665429 Bearing, Pillow Block, 1.25” Bore ............4 499051 Set Screw, 1/4”-28 x 1/4” ...............8 400446 Screw, Hex Head, 1/2”-20 x 2”..............4 444816 Nut, Hex, 1/2”-20 Nylock .................4 658073...
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PARTS LISTS Conveyor Belt Hydraulic Motor, Conveyor Belt Scraper, Rear Deflector, Dirt Shield and Inspection Panel PL85470-03 85470RevB...
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PARTS LISTS Conveyor Belt Hydraulic Motor, Conveyor Belt Scraper, Rear Deflector, Dirt Shield and Inspection Panel Item Part Description Qty. 665971 Motor Hydraulic, Conveyor Belt Drive, 1540 Series .......1 463031 Key, Woodruff, 1/4” x 1” ................2 665985 Brace, Belt Motor ..................1 400444 Screw, Hex Head, 1/2”-20 x 1-3/4”...
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PARTS LISTS Hopper, Lifting Bracket, Conveyor Belt Scraper and Metering Gate Assembly PL85470-05RevA 85470RevB...
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Hopper, Lifting Bracket, Conveyor Belt Scraper and Metering Gate Assembly Item Part Description Qty. 668801 Panel, Hopper, Left Hand Side, CR-7 .............1 668800 Panel, Hopper, Right Hand Side, CR-7 ..........1 668803 Panel, Hopper, Front, CR-7 ..............1 668294 Panel, Hopper, Rear, CR-7 ..............1 664004 Seal, Hopper, Side ..................2...
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PARTS LISTS WIDESPIN Spinner Assembly PL85470-07 85470RevB...
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PARTS LISTS Speed Controls and Solenoid Valve Blocks PL85470-21 Item Part Description Qty. 668119 Bracket, Hydraulic Mounting ..............1 658172 Screw, Hex Head, 1/4”-20 x 2-1/2” ............4 453023 Washer, Flat, .281 ID x .625 OD x .062 Thick.........4 444830 Nut, Hex, 1/4”-20 Nylock .................4 668118 Manifold, Manual Control (Spinner and Conveyor Speed Controls) ..2 661850...
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PARTS LISTS Spinner Assembly Hydraulics PL85840-22 PRESSURE OUT LEFT RIGHT SPINNER SPINNER MOTOR MOTOR PRESSURE IN AS VIEWED FROM TOP Item Part Description Qty. 665972 Motor, Hydraulic, Spinner, 1540 TEC .............2 668026 Seal, Excluder (Dirt/Sand Protection Seal) ..........2 665982 Hose Assembly (Spinner Hydraulic Motor to Spinner Hydraulic Motor) ......1 657250 Adapter, 7/8”-14 Male O-Ring to 3/4”-16 ..........2...
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PARTS LISTS Hydraulic Hoses and Fittings RETURN FROM RETURN FROM SPINNER HYDRAULIC CONVEYOR BELT MOTORS HYDRAULIC MOTOR PRESSURE TO CONVEYOR BELT HYDRAULIC MOTOR PRESSURE TO SPINNER HYDRAULIC MOTORS TO TEE AT CONVEYOR BELT SOLENOID VALVE “PORT 1” CONVEYOR BELT SPEED CONTROL “PORT EX”...
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PARTS LISTS Hydraulic Hoses and Fittings Item Part Description Qty. 668518 Valve, Pressure Relief ................1 665664 Screw, Hex Head, 1/4”-20 x 2-3/4” ............2 453023 Washer, Flat, .281 ID x .625” OD x .062 Thick ........12 444830 Nut, Hex, 1/4”-20 Nylock ................. 6 668400 Valve, Check, Inline .................
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PARTS LISTS CR-7 Hydraulic Schematic TRACTOR TRACTOR RETURN PRESSURE PRESSURE RELIEF VALVE CHECK VALVE SPINNER SPEED CONTROL SPINNER SPEED CONTROL SOLENIOD VALVE CONVEYOR BELT SPEED PL85470-19 CONTROL CONVEYOR BELT CONVEYOR BELT SOLENOID HYDRAULIC MOTOR VALVE BELT RETURN BELT PRESSURE SPINNER...
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PARTS LISTS CR-7 Hydraulic Schematic PRESSURE PRESSURE RETURN SPINNER ON/OFF CHECK SOLENOID VALVE VALVE RELIEF VALVE FIGURE 17 CONVEYOR BELT ON/OFF SOLENOID VALVE SPINNER SPEED CONTROL CONVEYOR PRESSURE IN BELT CONVEYOR SPEED BELT CONTROL MOTOR LEFT RIGHT HYDRAULIC HYDRAULIC QUICK...
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PARTS LISTS Electrical Harnesses and Control Box Assembly CONNECTS TO CONVEYOR BELT ON/OFF SOLENOID VALVE CONNECTS TO SPINNER ON/OFF SOLENOID VALVE MAIN WIRING HARNESS RED (+) WHITE (+) GREEN (+) POWER FEMALE SOCKET ON END OF SUPPLY MAIN WIRING HARNESS CABLE As Viewed From Back Side Of Plug When Disassembled...
PARTS LISTS Decals CR-7 Broadcast Top Dresser Product Number 85470 U.S. Patent 6,149,079, 6,508,419 and 6,817,552 Additional Patents Pending 12.8 Km/h (8 MPH) MAX 633 Kg (1396 lbs) Empty 1.38 Cubic Meter - 2117 Kg MAX. (1.8 Cubic Yards - 4,666 lbs) 523 Kg Max.
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PARTS LISTS Decals [A] PRODUCT IDENTIFICATION DECAL [B] HAND HAZARD WARNING DECAL [C] THROWN OBJECT HAZARD WARNING DECAL [D] MAXIMUM CAPACITY AND TONGUE WEIGHT WARNING DECAL [E] MAXIMUM ANGLE OF OPERATION WARNING DECAL [F] HIGH HEAT HAZARD WARNING DECAL [G] HYDRAULIC PRESSURE HAZARD WARNING DECAL [H] METERING GATE, DIVERTER AND SPINNER VANE ADJUSTMENT SETTINGS DECAL [ I ] SPINNER ASSEMBLY TILT ANGLE DECAL...
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PARTS LISTS NOTES SERVICE DATE Service Notes 85470 85470RevB...
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PARTS LISTS NOTES NOTES Notes 85470 85470RevB...
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TURFCO MFG. INC. 1655 101 Avenue NE • Minneapolis, MN 55449–4420 USA Phone (763) 785–1000 • FAX (763) 785–0556 Internet - www.turfco.com E-Mail - service@turfco.com CR-7 Top Dresser Manual Number 668369 Rev B Product Number 85470 Printed in USA 0813...
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