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Rayco RG74DXH, Operator, Service, Maintenance Manual

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Rayco RG74DXH Operator, Service, Maintenance Manual Download Page 64

RG74DXH Operator · Service · Maintenance Manual

64

Adapter Kit 805387A Rev A.

ITEM

QTY

PART #

DESCRIPTION

1

4

FF6400-06-06

06 MORFS X 06 MORB STRAIGHT

2

2

FF6600-06-06-06

06 MORFS X 06 MORFS X 06 FORFS BRANCH TEE

3

2

FF6801-06-06

06 MORFS X 06 MORB ELBOW

4

2

FF2501-06-04

06 MORFS X 04 MP ELBOW

5

2

FF6602-06-06-06

06 MORFS X 06 FORFS X 06 MORFS RUN TEE

6

1

FF6400-06-04

06 MORFS X 04 MORB STRAIGHT

7

INTENTIONALLY BLANK

8

3

FF6801-06-04

06 MORFS X 04 MORB ELBOW

9

1

FF6400-04-04

04 MORFS X 04 MORB STRAIGHT

10

2

FF6801-04-06

04 MORFS X 06 MORB ELBOW

11

1

FF6500-04-04

04 MORFS X 04 FORFS SWIVEL 90°

12

3

FF6804-06-06-06

06 MORFS X 06 MORB X 06 MORFS RUN TEE

13

5

FF6801-04-04

04 MORFS X 04 MORB ELBOW

14

3

FF6801-08-08

08 MORFS X 08 MORB ELBOW

15

6

FF6400-04-06

04 MORFS X 06 MORB STRAIGHT

16

1

4601-12-08

12 BT X 08 MORB ELBOW

17

1

FF6801-08-10

08 MORFS X 10 MORB ELBOW

18

3

4501-12-12

12 BT X 12 MP ELBOW

19

2

4601-12-12

12 BT X 12 MORB ELBOW

20

2

4603-12-16

12 BT X 16 MORB 45°

21

2

FF6801-16-16

16 MORFS X 16 MORB ELBOW

22

1

394-16-16

16 MORFS X 16 CODE 61 90°

23

1

304-16-16

16 MORFS X 16 CODE 61 STRAIGHT

24

2

SFK-16

16 SPLIT FLANGE KIT

25

1

6059-08-06

08 MORFS X 06 MORB BSPP ELBOW

26

1

FF3800-08-06

08 MORFS X 06 MORB BSPP STRAIGHT

27

1

FF6400-12-12

12 MORFS X 12 MORB STRAIGHT

28

2

4244-06-04 

3/8” BARB X 1/4” MNPT STRAIGHT

29

2

5504-06-06F 

90° 06 FNPT X 06 FNPT FEMALE ELBOW

30

2

4404-06-06

06 BT X 06 MNPT STRAIGHT

31

1

FF2503-12-12

12 MORFS X 12 MP 45°

32

1

4503-12-12

12 BT X 12 MP 45°

33

1

4404-12-16

12 BT X 16 MP STRAIGHT

34

10

TBC-120

T-BOLT CLAMP 1.14”-1.22”

35

6

H6 HEX HD

SCREW CLAMP 28/64-50/64 RANGE

36

1

6408-H-06

HEX SOCKET O-RING PLUG

37

1

4601-12-08

12 BT X 90 MORB ELBOW

38

1

6408-H-12

HEX SOCKET O-RING PLUG

39

1

FF6802-08-08

08 MORFS X 08 MORB 45°

40

1

4603-12-08

12 BT X 08 MORB 45°

Summary of Contents for RG74DXH

Page 1: ...RG74DXH OPERATOR SERVICE MAINTENANCE MANUAL RAYCO MANUFACTURING 2017 ALL RIGHTS RESERVED PRINTED IN USA INDEX OSMRG74DXH 17 ...

Page 2: ...andunderstandallinstructionsbefore attempting to operate this machine This manual should be readily available for reference at all times Additional copies of this manual may be purchased from Rayco This Rayco machine was designed and manufactured by RaycoManufacturing Inc Wooster Ohio Duetocontinuous improvements Rayco reserves the right to make changes in engineering design and specifications or ...

Page 3: ...RG74DXH Operator Service Maintenance Manual 800 392 2686 3 Table of Contents TABLE OF CONTENTS Foreword 4 Safety 8 Operation 24 Warranty 37 ...

Page 4: ...tion please consult your Rayco dealer for the latest available information Safety The safety section lists basic safety precautions In addition this section may include text and locations of warning signs and labels used on the machine Read and understand the basic precautions listed in the safety section before operating or performing lubrication maintenance and repair on this machine Parts Parts...

Page 5: ... equipment or before you repair the equipment Know the width of your equipment in order to maintain proper clearance with you operate the equipment near fences or near boundary obstacles Be aware of high voltage power lines and power cables that are buried If the machine comes in contact with these hazards seriousinjuryordeathmayoccurfromelectrocution Wear a hard hat protective glasses and other p...

Page 6: ...placement diesel engine delivers more cutting power than most 100hp class stump cutters and meets Tier 4 Final emissions without complex after treatment systems Compared to the competition the difference is clear Cummins QSF3 8 diesel engine meets Tier 4 Final Stage IV emissions Does not require Diesel Exhaust Fluid DEF Does not utilize Diesel Particulate Filter DPF Large displacement engine produ...

Page 7: ...st remain level with machine frame and not tilt upward or downward while in operation Also engine must not move left or right while in operation Hydraulic System Cutter Cutter Pump Variable displacement axial piston Cutter Motor Fixed displacement axial piston Cutter Pump Displacement Electronic controlled with neutral start Command Cut Swing speed control and horsepower optimizer Filter Easy acce...

Page 8: ...at information is needed in caring for your machine It is attached to the machine at the location shown For ready reference record it in the boxes provided on the inside front cover of this manual For reference on communication regarding the engine record its model and serial numbers also in the boxes provided on the inside front cover of this manual See the Engine Operator Manual for assistance i...

Page 9: ...rmation Identification Numbers Model Number Serial Number Machine Engine Implement Implement Dealer Information Name Address Dealer Contact Phone Number Hours Sales Parts Service Serial number is located as shown Use the below table to record identification numbers and dealer information ...

Page 10: ...nique not specifically recommended by Rayco you must use it only if you have accurately evaluated it and found that it threatens no one s safety You should also ensure that the product will not be damaged or made unsafe by the operation lubrication maintenance or repair procedures that you choose The procedures described in this Safety section may not be fully explained here but a more complete ex...

Page 11: ...o ANSI Z89 1 and DO NOT wear under chin strapping while operating or within the operation area of the Horizontal Grinder Eyeprotection mustconformtoANSIZ87 1andbethewrap aroundstyle Alwaysweartheeyeprotectionwhenoperating or working within the operational area of the machine Hearing Protection Plug type ear protection or full ear coverage devices muff type shall be worn at all times when operating...

Page 12: ...ssure can penetrate body tissue Fluid penetration can cause serious injury and possible death A pin hole leak can cause sever injury If fluid is injected into your skin you must get treatment immediately Seek treatment from a doctor that is familiar with this type of injury Asbestos Information Rayco recommends the use of only genuine Rayco replacement parts Use the following guidelines when you h...

Page 13: ...engine is running Never jump across the starter solenoid terminals in order to starttheengine Unexpectedmachinemovementcouldresult Wheneverthereareequipmentcontrollinkages theclearance in the linkage area will change with the movement of the equipment or the machine Stay clear of areas that may have a sudden change in clearance with machine movement or equipment movement Avoid contact with the rot...

Page 14: ...r to remove the hydraulic tank filler cap Batteries Electrolyte is an acid Electrolyte can cause personal injury Do not allow electrolyte to contact the skin or the eyes Alwayswearprotectiveglassesforservicingbatteries Wash hands after touching the batteries and connectors Use of gloves is recommended Fire Explosion Prevention All fuels most lubricants and some coolant mixtures are flammable Flamm...

Page 15: ...e proper procedure of mounting the fire extinguisher Ether Starting Fluid Ether is flammable and poisonous Use ether in well ventilated areas Do not smoke while you are replacing an ether cylinder or while you are using an ether spray Do not store ether cylinders in living areas or in the operator compartment of a machine Do not store ether cylinders in directsunlightorintemperaturesabove49 C 120 ...

Page 16: ...equirements for the guards Consult your Rayco dealer for additional information Precautions for Welding on FRAME with ENGINE MACHINE Electronic Control Unit ECU Important ALWAYSdisconnectElectronicControlUnit ECU connectors battery and engine control system to machine ground before welding on engine or machine High currents or electrostatic discharge in electronic components from welding may cause...

Page 17: ... capacity Never straddle a wire cable Never allow personnel to straddle a wire cable Know the maximum dimensions of your machine Observe all applicable local government regulations when you use this machine All personnel using this Machine must be trained in the operation safety and maintenance repair procedures Careless use of this Equipment could result in serious injury or even death ALLPROCEDU...

Page 18: ...l tracks This may also decrease the weight on the uphill tires The decreased weight will cause the machine to be less stable Heightofmachineworkingload Whentheworkingloads are in higher positions machine stability is reduced Operated equipment Be aware of performance features of the equipment in operation and the effects on machine stability Operating techniques Keep all attachments or pulled load...

Page 19: ...ies energy to the equipment in case of mechanical energy a block may be used to stop the release of stored energy Securely place a tag on each energy source disconnect or energy release block Before the removal of a lockout tag out the following must be completed 1 Removal of all non essential items 2 Check to see that all workers and bystanders are located in a safe position 3 Inform all affected...

Page 20: ...for extra stopping distances Refer to U Haul s Safe Trailering Driver EducationProgramthatisavailableatthiswebsite http www uhaul com guide index aspx equipment towing autotransport Make sure the towing eye is at the proper height so the machine tows level when traveling A proper amount of tongue weight is required to allow the machine to tow properly Toolittletongueweightwillresultinwandering fis...

Page 21: ...ic handling characteristics of your tow vehicle Changes to your tow vehicle from how it was manufactured canaffectitsabilitytotow Thesechangescanincludedifferent tires suspension changes etc Check your owner s manual or with an authorized automotive dealer to make sure any changes to your tow vehicle are approved DO NOT tow the trailer if your tow vehicle has changes that are not approved Avoid dr...

Page 22: ...ay Photo eye if equipped Operator must be in proximity of the photo eye 5 in order to engage the cutter wheel The cutter wheel will shut down if operator steps away from the photo eye Loading Load the heaviest end engine end of the vehicle in tow to the FRONT of the trailer Failure to load facing forward may result in sway or WHIPPING and lead to total loss of control DO NOT load cargo in your veh...

Page 23: ...rottle on low idle 5 Slowlybackthemachineoffofthetrailer untilthemachine is on the ground 6 Todrivethemachine settheengineatthedesiredspeed and use the machine controls to steer the machine in the desired direction Safety DO NOT RELEASE OR JERK THE FORWARD REVERSE LEVER UNTIL THE MACHINE IS COMPLETELY UNLOADED OR THE STUMP CUTTER MAY TIP OVER IN RESULT ...

Page 24: ...RG74DXH Operator Service Maintenance Manual 24 Operation 1 8 2 6 3 5 4 7 ...

Page 25: ... free of personnel 6 Check the stumps to be removed for embedded nails wire metal fence posts and for rocks or other buried impediments which may become dangerously thrown or cause unexpected machine movements when encountered by the cutting wheel 7 Ensure that everyone in the vicinity is aware of the DANGER ZONE associated with this machine See diagram above Everyone must avoid the DANGER ZONE at...

Page 26: ...ingthecuttingwheelraiseleverintheRAISEposition This will allow the oil to reach relief pres sure which causes it to warm up more rapidly 4 Cycle all the controls to allow warm oil to circulate through all the cylinders and lines Operator s Station The operator s station is mounted on a swing out arm for optimum viewing of work while remaining protected It must be swung IN during machine transporta...

Page 27: ... Boom Lock Pin The cutting boom lock pin prevents the cutting boom from settling during transportation and when the machine is not in use The pin is installed by the following procedure 1 With the pin 13 removed raise the cutting wheel to its full height so that the lock pin holes are aligned 2 Align the pin into the keyhole in the cutting boom and insert Rotate the pin to make sure it is securely...

Page 28: ...n of tow vehicle to trailer braking canonlybeaccomplishedbyroadtesting Brakelockup grabbiness or harshness is quite often due to the lack of synchronization too high of threshold voltage over 2v or under adjusted brakes 4 Beforeanysynchronizationadjustmentsaremade thenew brakes should be burnished in by applying the brakes 20 30 times with approximately a 20 mph decrease in speed e g 40mph down to...

Page 29: ...the battery of the boost machine c Connect the black negative jumper cable to the negative terminal of the boost machine battery d Connecttheotherendoftheblacknegative jumper cable to the negative post of the stalled machine where thebatteryblacknegative cableisalreadyconnected 7 Start the engine on the boost machine and allow it to run at high idling speed for about ten minutes This will partiall...

Page 30: ...s will be directed NOTICE Always allow a cold engine time to warm up before cutting a stump NOTICE When swinging the cutting wheel DO NOT use the cutting wheel or boom to stop the swinging motion Inspect the machine for damage if the boom as been swung too hard into the stump or side of a hole BEFORE ENGAGING THE CUTTER WHEEL THE OPERATOR MUST ENSURE THE AREA IS CLEAR OF ANYONE OR ANYTHING THAT MA...

Page 31: ...ely 2 75 deep bite After the first bite is taken lower the cutting wheel about 2 while is off to the side and swing the cutting wheel across for another bite Continuerepeatingthisprocedureuntilalloftheamount of stump in the path of the downward swing of the cutting wheel is gone 4 Cut another level of the stump Raise the cutting wheel above the stump once again and starting with the cutting wheel ...

Page 32: ...Place the battery on wood not on a concrete floor or steel table Always keep the battery fully charged DO NOT store where an open flame or sparks might occur Check your machine for any worn or broken parts at this time By ordering replacement parts now you can avoid unnecessary delays when you remove the machine from storage 1 Store the machine in a flat place and remove the key from the engine 2 ...

Page 33: ...RG74DXH Operator Service Maintenance Manual 800 392 2686 33 Operation ...

Page 34: ...s MegaFlow AW HVI 46 Viscosity 7 7 cSt 100 C 46 cSt 40 C Pour Point 45 C 49 F Shell Tellus T 46 new name Tellus S2 V46 Viscosity 7 95 cSt 100 C 45 9 cSt 40 C Pour Point 42 C 43 F Mobil DTE 15M Viscosity 7 8 cSt 100 C 46 cSt 40 C Pour Point 42 C 43 F Exxon Univis N 46 Viscosity 8 2 cSt 100 C 46 cSt 40 C Pour Point 48 C 54 F Pennzoil Pennzbell AWX MV 46 Viscosity 8 8 cSt 100 C 46 3 cSt 40 C Pour Poi...

Page 35: ... extreme cold temperature areas a No 0 grade grease may be used Before lubricating make sure all grease fittings and the nozzle of the grease gun is clean Cold Weather Lubricants Before attempting to start the engine make sure that the oil in the engine the transmission and the hydraulic system are fluid enough to flow Check the oil by removing the dipsticks If the oil will drip from the dipstick ...

Page 36: ... and minimizes the formation of abrasive dissolved solids Storage stable for at least eight years 100 biodegradable in its pure unused form Excellent heat transfer properties Nitrite borate phosphate nitrate and amine free Outstanding hot surface aluminum protection Superior protection in high operating temperatures We recommend the following coolant type for your machine Pre mixed Extended Life C...

Page 37: ...ry Prior to installation of any hardware ensure that components are in near new condition Bolts and threads must not be worn or damaged Threads must not have burrs or nicks Hardware must be free of rust and corrosion Clean the hardware with a noncorrosive cleaner Do not lubricate the fastener threads except for the rust preventative The rust preventative should be applied by the supplier of that c...

Page 38: ... or water in fuel system Air in fuel system Use correct fuel Remove fuel clean tank and replace Remove air from fuel system Drive System Troubleshooting PROBLEM CAUSE SOLUTION Engine Stalls When Grinding Swing rate is too fast Too deep of a cut Command Cut not working Use Command Cut Feature Reduce cutting depth for material See your RAYCO Dealer Polybelt Is Noisy While Grinding Belt is loose or w...

Page 39: ...ystem Fuel filter is dirty Wrong weight engine oil Restricted air filter Injectors dirty Low engine compression Engine is too hot Ensure map sensor manifold absolute pressure sensor is in good working order Use correct fuel Remove fuel clean tank and replace Remove air from fuel system Replace fuel filter Use correct oil Clean or replace air filter See your Rayco dealer See your Rayco dealer See y...

Page 40: ...ent Know the appropriate work site hand signals and the per sonnel that are authorized to give the hand signals Accept hand signals from one person only Do not smoke when you service an air conditioner Also do not smoke if refrigerant gas may be present Inhaling the fumes that are released from a flame that contact air conditioner refrigerant can cause bodily harm or death In haling gas from air c...

Page 41: ...Belt Check Adjust Hydraulic Oil Filter Change Cutter Wheel Charge Filter Change Pump Gearbox Bolt Tightness Check Fuel Pre Filter Water Seperator Check Engine Mountings Check Engine Belt Drives Check Brake System Check Every 250 Hrs Maintenance Interval Engine Oil Filter Change Hydraulic Oil Filter Change Cutter Wheel Charge Filter Change Engine Cooling System Inspect Battery Check Clean Terminals...

Page 42: ...RG74DXH Operator Service Maintenance Manual 42 Maintenance Maintenance Log Date of Service Machine Hours Description of Service Maintenance Notes ...

Page 43: ...RG74DXH Operator Service Maintenance Manual 800 392 2686 43 Maintenance Maintenance Log Date of Service Machine Hours Description of Service Maintenance Notes ...

Page 44: ...intenance intervals chart might be necessary Perform service on items at multiples of the original requirement For example at every 500 service hours or 3 months also service those items listed under every 250 service hours or monthly and every 10 service hours or daily Walk Around Inspection For maximum service life of the machine make a thorough walk aroundinspection Inspectthemachineforthefollo...

Page 45: ...Check the dipstick 1 and top off the engine oil to the uppermost line 6 on the dipstick 6 Once engine oil level shows full replace engine oil fill cap 2 and tighten securely Fuel Tank Check Level Fill Drain The Fuel tank 7 is located near the rear of the machine as shown above The fill cap 8 is located just above the tank To fill the fuel tank loosen and remove the fuel cap and carefully fill the ...

Page 46: ...fuels Fuel flow to the engine becomes restricted as the element gradually plugs with contaminants resulting in noticeable power loss and or hard starting When any one of these occurs change the element as soon as possible Always carry an extra replacement element See service parts as one tankful of contaminated fuel can plug a fuel filter For instructions regarding the element replacement see your...

Page 47: ...ing the hydraulic operating components 1 Place a pan below the filter to catch dripping oil 2 Using a filter wrench unscrew the filter from the filter head 3 Apply a light coat of hydraulic oil to the gasket of the new filter 4 Screw the new filter onto the filter head until hand tight 5 Tighten further with the filter wrench 6 Dispose of the used filter and lost oil in accordance with local safet...

Page 48: ...tor cap 2 Place a container under the radiator drain and loosen the drain plug 3 When the radiator is empty re tighten the radiator drain plug 3 When refilling the radiator see your Cummins Engine Manual for coolant specifications With the radiator cap removed start the engine Check the amount of fluid in the radiator 1 adding coolant as necessary When the coolant level in the radiator remains con...

Page 49: ...ump Cutters and Forestry Mowers The use of non Rayco cutting tools or cutting wheels will void the machine warranty Rayco s cutting tools cutting wheels and mower rotors are specifically designed to provide optimum performance in many ways The use of non Raycopartswillcompromisethisoptimumperformance Safety Rayco s cutting tools are always attached with at least two fasteners This redundant fasten...

Page 50: ...re available from your Rayco dealer or directfromRayco RefertothePartsmanualforpartnumbers The Cutter Wheel on the RG74DXH uses 4 different types of SuperTeeth as shown below NOTICE Read all of the following instructions before beginning to change the cutting teeth NOTICE The following illustrations represents the exact location required for positioning each tooth Please follow the diagrams very c...

Page 51: ... itself out all the way around the seal diameter and new grease beginning to purge out This will ensure that the dirt and debris that gets collected inside the seal area is flushed away from the internal bearings thus providing longevity to the bearing and races Engine Leaks Check Check for leaks as described in the After First 50 Hours interval of the Cummins Engine Operation Manual Engine Mounts...

Page 52: ...e start screen will appear to start the measurement Tap Start andholdtheiPhoneatthemeasuringposition beforethebeltismadetovibrate Start buttonchanges to measuring and the microphone starts to pick up a sound wave Note Hold the microphone of the bottom of the phone iPhone roughly 1 4 3 8 10mm from the center of the span length Simply flick the belt with your finger or softly tap it with a wrench to...

Page 53: ...en the lock nut 3 the hydraulic motor bracket slide bolt 2 and both motor pivot shaft clamp bolts 7 6 Remount belt guard cover and bolts Tighten all bolts When the belt is too tight 1 Loosen the hydraulic motor bracket slide bolt 2 and both motor pivot shaft clamp bolts 7 enough to allow the hydraulic motor 6 to pivot freely 2 Loosen the lock nut 3 on the adjusting screw 4 3 Pivoting the hydraulic...

Page 54: ...Checkthefluidlevelsmorefrequentlythantherecom mend ed periods if leaking is suspected or ob served until the problem may be corrected Swing Pivot Bearings Lubricate the two fittings 9 on the cutting boom swing pivot housing facing towards the operator side Apply 2 3 pumps of grease Lift Pivot Lubricate the lift pivot fittings 10 there is one on each side of pivot Apply 2 3 pumps of grease Lift Cyl...

Page 55: ...RG74DXH Operator Service Maintenance Manual 800 392 2686 55 ...

Page 56: ... N DELPHI 150 SERIES 3 PIN 12110293 DELPHI TERMINAL 12048074 DELPHI LOCK 12052845 P RING TERMINAL FOR 1 4 STUD INSULATED W ADH HEAT SHRINK Q RING TERMINAL FOR 5 16 STUD INSULATED W ADH HEAT SHRINK R VTE SERIES 212 212N1V02 OR EQ RED S RING TERMINAL FOR 10 STUD INSULATED W ADH HEAT SHRINK T HELLA RELAY CONNECTOR KIT H84 709 011 OR EQ U RING TERMINAL FOR 8 32 STUD INSULATED W ADH HEAT SHRINK V DEUTS...

Page 57: ...AN TYPE G H J 3 6 6 6 4 6 6 14 23 70 4 8 16 10 12 30 6 20 3 4 36 COM GRD BATTERY TYPE M PLUG 03 DISPLAY FUSE 20A TYPE C COM GRD BATTERY TYPE M 37 PLUG 05 THROTTLE SWITCH TYPE E 22 8 2 2 M PLUG 38 CHARGE FILTER TYPE F NOTE CONNECTOR 01 PIN 01 3 01 4 FOR CAN BUS TO BE GOLD PLATING OVER NICKEL ALL OTHERS TO BE NICKEL PLATED START SOL FUSE 30A TYPE U RUN PWR FUSE 30A TYPE U PLUG 01 DISPLAY TYPE A 02 2...

Page 58: ...RG74DXH Operator Service Maintenance Manual 58 Main Electrical Wiring Harness 37581 Rev B ...

Page 59: ...ice Maintenance Manual 800 392 2686 59 COLOR LEGEND RED RED BLK BLACK BRN BROWN ORG ORANGE YLW YELLOW TAN TAN PUR PURPLE GRN GREEN BLU BLUE GRY GRAY TRACER COLOR IMPRINT LETTERING Main Electrical Wiring Harness 37581 Rev B ...

Page 60: ... 01 22 IGNITION START SIGNAL 18 GRN 43 2 01 25 LCM STARTER SIGNAL 18 BLU 25 01 27 COMMAND CUT 18 YLW 06 1 01 28 CHARGE FILTER SENSOR 18 TAN 38 B 01 29 CW ENGAGE IN 18 PUR 42 02 01 30 CW ENGAGE OUT 18 ORG 24 02 02 A RESISTOR 18 ORG SP7 02 B COM GND 18 BLK SP1 03 A RUN POWER 12V 18 RED SP2 03 B LCM FUSED PWR 18 RED SP3 04 A ECU GROUND 18 BLK SP5 04 B ECU POWER BAT 12V 18 RED SP4 04 C CAN 18 YLW 40 A...

Page 61: ...ND 18 BLK SP5 09 50 ECU GROUND 18 BLK SP5 09 51 ECU GROUND 18 BLK SP5 09 52 ECU GROUND 18 BLK SP5 09 62 ECM RETURN 18 BRN 10 2 09 73 ECU GROUND 18 BLK SP5 09 75 INTAKE HEAT RELAY SIG 18 GRN 29 09 76 HS RETURN 18 BRN 30 09 83 STARTER LOCKOUT SIG 18 ORG SP7 11 ECU GROUND 10 BLK SP5 12 BAT ENG BLOCK GND 10 BLK 37 17 START SOL SIG 14 GRN 28 23 2 RUN POWER 12V 18 RED SP2 24 1 COM GND 18 BLK SP1 26 STAR...

Page 62: ... SPOOL JACKSTAND G 1 805016 RADIATOR CAC OILCOOLER RG74T R H 1 805222 FILTER HEAD DIFFERENTIAL 50PSI J 1 805075 FILTER HYD OIL RAYCO LOGO K 1 804909 CW MOTOR MANIFOLD L 1 804908 CUTTER WHEEL PUMP M 1 805215 PUMP GEAR 8CC RG74DXH N 1 738004 VALVE 3 SPOOL RG50 66 90 P 1 738008 VALVE SWING CONTROL Q 1 800411 VALVE FLOW CONTROL SJRD R 1 805100 VALVE CHECK DUAL PILOT PISTON S 1 1200015 VALVE OVERCENTER...

Page 63: ...RG74DXH Operator Service Maintenance Manual 800 392 2686 63 Hydraulic Kit Schematic 805387 ...

Page 64: ...08 12 BT X 08 MORB ELBOW 17 1 FF6801 08 10 08 MORFS X 10 MORB ELBOW 18 3 4501 12 12 12 BT X 12 MP ELBOW 19 2 4601 12 12 12 BT X 12 MORB ELBOW 20 2 4603 12 16 12 BT X 16 MORB 45 21 2 FF6801 16 16 16 MORFS X 16 MORB ELBOW 22 1 394 16 16 16 MORFS X 16 CODE 61 90 23 1 304 16 16 16 MORFS X 16 CODE 61 STRAIGHT 24 2 SFK 16 16 SPLIT FLANGE KIT 25 1 6059 08 06 08 MORFS X 06 MORB BSPP ELBOW 26 1 FF3800 08 0...

Page 65: ... 1 REF 12R4 PLAIN 60 W NHS 16 1 REF EATON 5 8 EH22510 BLUE HEATER HOSE OR EQUIVILENT 43 17 1 REF EATON 3 8 EH22506 BLUE HEATER HOSE OR EQUIVILENT 25 18 1 REF EATON 3 8 EH22506 BLUE HEATER HOSE OR EQUIVILENT 19 19 1 REF 12R4 PLAIN 20 W NHS 20 1 REF 12R4 PLAIN 48 21 1 REF 8R16 8FSX 8FSX 144 W NHS 22 1 REF 6R16 6FSX 6FSX90 12 23 1 REF 6R16 6FSX 6FSX90 11 24 1 REF 6R16 6FSX 6FSX45 15 25 1 REF 6R16 6FS...

Page 66: ... 805153 HYDRAULIC TANK FILTER ELEMENT 805123 INNER AIR FILTER CARTRIDGE 804906 SERVICE INDICATOR 803607 FUEL CAP 760780 ENGINE KEY 804724 PARTS MANUAL PMRG74DXH OPERATION MANUAL OBRG74DXH OPERATION SERVICE MANUAL OSMRG74DXH CUMMINS ENGINE MANUAL CUTTER WHEEL TEETH STRAIGHT COUNTER BORE 3144C STRAIGHT THREADED 3144T ANGLE OUT COUNTER BORE 2933C ANGLE OUT THREADED 2933T ANGLE OUT COUNTER BORE 20432C...

Page 67: ...roduct to and from the place at which warranty work is performed 3 Any product that has been altered or modified in ways not approved by Rayco 4 Depreciation or damage caused by normal wear lack of reasonable and proper maintenance failure to follow operating instructions misuse lack of proper protection during storage or accident D Unapproved Service Modification Rayco is relieved of its obligati...

Page 68: ...hink Safe We care about your safety When operating your RAYCO machinery always wear an ap proved helmet complete with ear muffs face shield and the proper eye wear Never operate under the influence of alcohol or drugs Know your RAYCO read and understand your owner s manual cover to cover RAYCO Manufacturing Inc retains the right to make changes in design and specifications engineering add or remov...

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