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Section 2: Adjustments

RC4015 & RCM4015 Rotary Cutters   334-300M

9/19/16

Table of Contents

Park Jack Angle Alignment

Figure 2-1

Park Jack Angle Alignment

Refer to Figure 2-1:

The jack mount angle should be adjusted to position the 
park jack vertical while supporting the cutter hitch. This 
angle will vary depending on the number and size of 
stroke control spacers placed on the lift cylinder rod.

1.

With cutter hitched to a tractor, lower cutter to storage 
height.

2.

Shut tractor down properly before dismounting. Refer 
to 

“Tractor Shutdown Procedure” 

on page 13.

3.

Install park jack (#7). Se

“Park Jack Assembly” 

on 

page 13. Check jack angle. If jack is not vertical, 
proceed with step 3 below.

4.

Remove hex nut (#3), lock washer (#5) and carriage 
bolt (#2).

5.

Loosen 1" hex nut (#4). Do not remove.

6.

Rotate jack mount (#1) to align jack as near vertical 
as possible.

7.

Replace 1/2"-13 x 1 1/2" GR5 carriage bolt (#2) and 
secure with lock washer (#5) and hex nut (#3). 
Tighten hex nut to the correct torque.

8.

Tighten 1" hex nut (#4) to 645 ft-lbs.

9.

If moving cutter, skip to step 10. If unhooking cutter, 
see 

“Unhook Rotary Cutter” 

on page 22 for detailed 

instructions. 

10. If cutter is to be moved, remove park jack (#7) from 

hitch frame and attach it to the left-hand wing storage 
base. Make sure base of park jack is level with or 
lower than the head, especially after the wings are 
folded up. See cover picture for correct positioning.

39461

NOTE:  

If cutter is not hitched securely to a tractor, 

support blocks should be placed under the front 
skid shoes to support cutter while aligning the park 
jack vertically.

NOTE:  

Refer to decal (#6) and instructions below 

for jack alignment and torque value instructions.

Leveling Center Deck & Wings

These adjustments should be made with your cutter 
hooked to the tractor operating the unit or to a tractor 
having the same drawbar height.

Center Deck Leveling

Refer to Figure 2-2 & Figure 2-3 on page 25:

1.

With cutter attached to a tractor, disengage PTO, and 
park on a level, hard surface. Place tractor gear 
selector in park or set park brake.

2.

Wait for blades to come to a complete stop and then 
fold wings up to transport position.

3.

Shut tractor engine off and remove switch key before 
dismounting from tractor.

4.

Set transport locks to keep wing decks from falling. 
See 

“Transport Locks” 

on page 30 for instructions.

Front Skid Position (Chain Guards Removed for Clarity) 

Figure 2-2

5.

Using hydraulic lift, adjust center deck height so that 
the front skids (#2) are 2 to 3 inches above ground.

6.

On both sides of the center deck are continuous 
hinges (#1). Measure distance from bottom of hinges 
to ground at the front and back. They should be equal 
distance off the ground at the back and 1" closer to 
the ground at the front than they are at the back. 

If continuous hinges are too high at the front:

a. Loosen jam nuts (#3). 

b. Loosen adjusting nuts (#4) an equal amount to 

lengthen both leveling rods until hinges (#1) are 
inclined from front to back by 1" with the front 
being closer to the ground than the back. 

If continuous hinges are too low at the front:

a. Loosen jam nuts (#3) several turns. 

b. Tighten adjusting nuts (#4) an equal amount to 

shorten both leveling rods until hinges (#1) are 
inclined from front to back by 1" with the front 
being closer to the ground than the back. 

27858

NOTE:  

Loosening coupler nuts (#4) will lengthen 

leveling rods and lower front of cutter. Tightening 
coupler nuts (#4) will shorten leveling rods and raise 
front of cutter.

Section 2: Adjustments

Summary of Contents for RC4015

Page 1: ...y When you see this symbol the subsequent instructions and warnings are serious follow without exception Your life and the lives of others depend on it Illustrations may show optional equipment not su...

Page 2: ...tional 12 Hitch Assembly 13 Park Jack Assembly 13 Spring Hose Loop Assembly 13 Tractor Shutdown Procedure 13 Standard Clevis Hitch Hook up 14 Performance Hitch Hook up 15 Bar Tite Hitch Hook up 16 Hyd...

Page 3: ...ty Label section read all instructions noted on them Do not allow anyone to operate this equipment who has not fully read and comprehended this manual and who has not been properly trained in the safe...

Page 4: ...0 mph when weight of attached implement exceeds weight of machine towing implement but not more than double the weight IMPORTANT Do not tow a load that is more than double the weight of the machine to...

Page 5: ...ct tools and equipment When inflating tires use a clip on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly Use a safety cage if avai...

Page 6: ...d during repair requires safety labels to be affixed to the replaced component as specified by Great Plains When ordering new components make sure the correct safety labels are included in the request...

Page 7: ...s ROTATING DRIVELINE KEEP AWAY 37901 37586 37901 37586 818 552C Danger Rotating Driveline Keep Away 1 Place Top of splitter shield 3 Places Main driveline and 2 wing drivelines 818 142C Danger Rotatin...

Page 8: ...2296 37609 37586 37901 818 540C Danger Shield Missing DO NOT Operate 3 Places Located on main and two wing drivelines 818 543C Danger Guard Missing DO NOT Operate 3 Places Located on center deck and b...

Page 9: ...300M Table of Contents 37901 37586 37586 818 840C Danger Rollover Hazard 1 Place Located on left side of center deck 818 561C Danger Raised Wing Hazard 2 Places Located on the right and left wing deck...

Page 10: ...e of Contents 838 588C Warning Folding Cutter Speed Warning 818 564C Danger Rotating Blade 2 Places Located on the right and left wing decks 838 094C Warning High Pressure 37588 37588 37901 37901 818...

Page 11: ...818 229C 1 3 4 x 2 3 4 Amber Reflector Located on front side of left right wing lock bars 838 614C 2 x 9 Red Reflector Located on back side of left right wing lock bars 838 614C 2 x 9 Red Reflector Lo...

Page 12: ...y maintenance and safe operating practices will help you get years of satisfactory use from this machine Application The RC4015 and RCM4015 Series 2 Rotary Cutters are designed and built by Great Plai...

Page 13: ...ual for your cutter An understanding of how it works will aid in the assembly and setup of your cutter It is best to go through the Pre Assembly Checklist before assembling the cutter Speed up your as...

Page 14: ...tite hitch functions similar to the Performance hitch except it clamps directly to the drawbar The bar tite hitch is sandwiched between hardened steel plates to eliminate drawbar wear It has a bushing...

Page 15: ...er to Figure 1 7 1 Attach park jack 9 to jack mount and secure with attached pin 8 2 If park jack is not vertical adjust jack angle according to Park Jack Angle Alignment on page 24 3 Adjust jack up o...

Page 16: ...irpin cotter Insert hitch pin 1 through top hole in clevis 9 tractor drawbar and out through bottom hole in clevis Secure hitch pin with hairpin cotter 2 10 Lower park jack 3 until hitch weight is sup...

Page 17: ...tor drawbar is adjusted correctly Refer to Drawbar Set up dimensions on page 11 9 Raise or lower park jack 3 to align clevis 9 with tractor drawbar Drawbar should fit between lower and upper plates of...

Page 18: ...8 If park jack is not vertical refer to Park Jack Angle Alignment on page 24 2 Store center 3 point link in its storage hook 3 Start tractor raise 3 point arms fully up and carefully back tractor with...

Page 19: ...p Performance Hitch Shown Figure 1 15 Refer to Figure 1 15 1 Route hydraulic hoses 7 through hose support loop 10 and attach couplers to the tractor remote outlets If tractor has a float option on one...

Page 20: ...h wings are on the ground 1 4 3 27921 Transport Bar Storage Position Figure 1 18 Driveline Installation DANGER Do not engage tractor PTO while hooking up and unhooking driveline or while someone is st...

Page 21: ...conventional type Pull collar and bolted couplers are used to secure the driveline to the tractor and implement gearbox respectively 1 Remove hex whiz nuts 4A carriage bolts 3 and shipping bracket 2 D...

Page 22: ...actor Shutdown Procedure on page 13 3 Remove all stroke control spacers 2 from center hydraulic lift cylinder 1 by spreading them apart at the break line 4 Start tractor and lower cutter until front s...

Page 23: ...tings between the Rotary Cutter and tractor hydraulic system Refer to Figure 1 23 Wing Fold Cylinder 1 Lower center deck until it is supported by stroke control spacers 6 on hydraulic cylinder 4 2 Low...

Page 24: ...brake Refer to Figure 1 24 on page 22 4 Wait for blades to come to a complete stop and then fold wings up to transport position 5 Shut tractor engine off and remove switch key before dismounting from...

Page 25: ...f the tractor drawbar 21 Remove connecting hitch pin or bolt as follows a For Standard Clevis Hitch See Figure 1 25 Remove hairpin cotter 2 and hitch pin 1 a For Performance Hitch See Figure 1 28 Refe...

Page 26: ...alignment and torque value instructions Leveling Center Deck Wings These adjustments should be made with your cutter hooked to the tractor operating the unit or to a tractor having the same drawbar h...

Page 27: ...emselves 3 Check wing tops to see if they are level with the top of the center deck If the outer edge of either wing top is higher or lower than the center deck then that wing should be leveled as fol...

Page 28: ...ieved 8 Select required size and number of stroke control spacers 2 that will fit on the center hydraulic cylinder rod The following spacers are available Two 1 spacers One 1 1 4 spacer One 1 1 2 spac...

Page 29: ...ne as needed Refer to Lubrication Points Page 46 Lubricate all gearboxes and replace oil plugs properly Refer to Gearbox Lubrication Page 48 Check cutter initially and periodically for loose bolts and...

Page 30: ...termine its capabilities RC series cutters are designed for 540 rpm rear PTO RCM series cutters are designed for 1000 rpm rear PTO Tractor Cutter Inspection Make the following inspections with cutter...

Page 31: ...ft shields must be secured in place when operating cutter to avoid injury or death from entanglement in driveline WARNING Always disengage PTO place tractor in park or set park brake shut tractor engi...

Page 32: ...ays raise wings and set transport locks before transporting from one work site to another and before traveling on public roadways The wings can fall if not secured with transport locks causing a serio...

Page 33: ...sure wing gauge wheels are in continuous contact with the ground at all times Select Gear Range Optimum ground speed depends on density of material being cut horsepower rating of tractor and in some c...

Page 34: ...ily see you and pass you safely Reduce your speed when traveling over rough and hilly terrain Avoid quick or sharp steering corrections Take extra care to ensure that the mower doesn t come into conta...

Page 35: ...ont Rubber Guards 330 494A Rear Rubber Guards Single Chain Guards 330 481A Front Single Row Chain Guards 330 493A Rear Single Row Chain Guards Double Chain Guards 330 483A Front Dual Chain Guards 330...

Page 36: ...will drop the deck suddently and can cause serious bodily injury or death 1 Pull cable hook with cable out past the gearbox 2 Attach cable to wing deck by routing cable around the wing gearbox base a...

Page 37: ...ional control kit is available from your local Great Plains dealer See Selector Control Valve Kit below Selector Control Valve Kit 312 316A SELECTOR CONTROL VALVE KIT Refer to Figure 4 3 This kit is f...

Page 38: ...unting clamps 2 as shown NOTE Amber lights are located to the outside and red lights are located to the inside as shown 7 Nuts 7 must be on top Secure unit to cylinder with 3 8 16 x 4 GR5 bolts 6 and...

Page 39: ...h connector 3A to connector 3B on lead wire harness 20 16 Route lead wire harness through spring hose loop and connect to the tractor s 7 way round pin receiver 17 Start tractor and operate lights to...

Page 40: ...l Maintenance Information Proper servicing and adjustments are key to the long life of any implement With careful inspection and routine maintenance you can avoid costly downtime and repair The parts...

Page 41: ...right hand wing Center Skid Shoes Refer to Figure 5 4 Replace center skid shoes as follows 1 Remove 1 2 13 hex whiz nuts 4 1 2 13 x 1 1 4 GR5 carriage bolts 3 and right hand center skid shoe 1 from t...

Page 42: ...ut off WARNING Do not operate cutter with blades that are bent out of balance excessively worn excessively nicked or with blade bolts that are excessively worn Such blades can break loose from the cut...

Page 43: ...vibration which can damage gearbox bearings and create structural cracks Refer to Figure 5 7 6 Carefully check cutting edges of blades in relation to blade carrier rotation to ensure correct blade pl...

Page 44: ...NOT covered under the warranty Type A Clutch Type B Clutch 26619 Type A Clutches Clutch Run In Refer to Figure 5 9 1 Using a pencil or other marker scribe a line across the exposed edges of the clutc...

Page 45: ...and should be replaced if thickness falls below 3 64 1 1mm If clutches have been slipped to the point of smoking the friction disks may be damaged and should be replaced Heat build up may also affect...

Page 46: ...y each week An additional set of scribe marks can be added to check for slippage Clutch Disassembly Inspection Assembly Refer to Figure 5 13 The clutch must be disassembled into its separate friction...

Page 47: ...to minimize oxidation 2 Check blades and blade bolts for wear and replace if necessary See Cutter Blade Maintenance on page 40 3 Inspect for loose damaged or worn parts and adjust or replace as needed...

Page 48: ...50 hours Quantity 2 pumps Repack wheel bearings annually Adjustable Turnbuckle 4 zerks 2 per turnbuckle Type of Lubrication Multi Purpose Grease Quantity As required Hitch Frame 2 zerks Type of Lubri...

Page 49: ...Wing Deck Axle Pivot 4 zerks 2 zerks per wing axle Type of Lubrication Multi purpose Grease 50 Hours 50 Hours Performance Hitch Optional 2 zerks Type of Lubrication Multi purpose Grease Quantity As r...

Page 50: ...ivider Box Method 1 Unscrew top vented dipstick Wipe oil from dipstick and screw dipstick in without tightening Unscrew dipstick and check oil on dipstick If below bottom level mark add recommended ge...

Page 51: ...rofile Tubes Type of Lubrication Multi purpose Grease Quantity Coat Generously Wing Driveline Joints Type of Lubrication Multi purpose Grease Drivelines with external profile tube grease point 37514 3...

Page 52: ...0 pumps IMPORTANT To extend the life of the constant velocity joint the grease zerk for the profile tubes must be lubricated every 8 hours CV Main Driveline Joints CV Constant Velocity Type of Lubrica...

Page 53: ...h Two Holes In Driveline Shield Figure 5 15 Lubrication By Sliding Driveline Shields Back 1 Refer to Figure 5 16 With a flat bladed screwdriver or similar tool pry top of red locking tab up 2 Refer to...

Page 54: ...ittings Wing Transport Protection Wing Transport Locks Deck Material Thickness 10 Gauge Side Skirt Thickness 1 4 Steel Skid Shoes Wing Deck AR400 1 Replaceable skid shoe per wing Center Deck AR400 2 R...

Page 55: ...0M Table of Contents Transport Width Without Special Adjustments Transport Width With Wing Axles Disconnected At Turnbuckles 5 And Wheels Folded Back See Figure 1 16 on page 17 15 9 10 2 3 4 Add 8 for...

Page 56: ...e tip speed Allows clean cutting of material 6 Blade overlap Eliminates skipping during turns Left wing rotates clockwise Better discharge of material Picks up tractor tracks 3 16 Round stump jumper S...

Page 57: ...rt position Use pry bar or other tool to separate cutting blades before lowering wings Tractor has instant on PTO Engage PTO at low RPMs and then slowly increase engine speed to full PTO speed See Eng...

Page 58: ...245 5 8 18 150 110 230 170 325 240 M18 X 2 5 195 145 310 230 405 300 3 4 10 235 170 360 265 510 375 M18 X 1 5 220 165 350 260 485 355 3 4 16 260 190 405 295 570 420 M20 X 2 5 280 205 440 325 610 450...

Page 59: ...ations failures caused by lack of normal maintenance as outlined in the operator s manual repairs made by non authorized personnel items replaced or repaired due to normal wear such as wear items and...

Page 60: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402...

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