Related Manuals for wsm RC60-27BR
Summary of Contents for wsm RC60-27BR
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Page 1: Rotary Mower
WORKSHOP MANUAL ROTARY MOWER RCK54-24B-EC,RCK60-24B-EC, RCK60-27B-ECRC60-24BR, RC60-27BR KiSC issued 11, 2006 A... - Page 2 TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of KUBOTA rotary mower RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC, RC60-24BR and RC60-27BR. It is divided into two parts, “Mechanism” and “Servicing” Mechanism Information on the Features and New Mechanisms are described.
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Page 3: Safety First
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. - Page 4 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SAFETY INSTRUCTIONS SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Do not alter or remove any part of machine safety system. • Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions.
- Page 5 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SAFETY INSTRUCTIONS VENTILATE WORK AREA • If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide.
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Page 6: Safety Decals
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SAFETY INSTRUCTIONS SAFETY DECALS The following safety decals are installed on the mower. If a decal becomes damaged, illegible or is not on the mower, replace it. The decal part number is listed in the parts list. - Page 7 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SAFETY INSTRUCTIONS CARE OF DANGER, WARNING AND CAUTION LABELS 1. Keep danger, warning and caution labels clean and free from obstructing material. 2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth.
- Page 8 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM TERMINOLOGY TERMINOLOGY (1) Front Gauge Wheel (5) Discharge Chute (9) Front Anti-scalp Roller (12) Rear Anti-scalp Roller (2) Belt Cover (Left) (6) Deck (10) Center Blade (13) Rear Gauge Wheel (3) Gear Box (7) Universal Joint...
- Page 9 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM TERMINOLOGY (1) Front Gauge Wheel (4) Belt Cover (Right) (7) Outer Blade (10) Outer Blade (2) Belt Cover (Left) (5) Deck (8) Front Anti-scalp Roller (11) Skid (3) Gear Box (6) Universal Joint (9) Center Blade...
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Page 10: Specifications
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM SPECIFICATIONS SPECIFICATIONS Model RCK54-24B-EC RCK60-24B-EC RCK60-27B-EC Suitable tractor B1710, B2110, B2410 B2710 Type Side discharge rotary mower Mounting method Parallel linkage Adjustment of cutting height Gauge wheel Cutting width 1372 mm (54 in.) 1524 mm (60 in.) Cutting height 38 to 102 mm (1.5 to 4.0 in.) -
Page 11: Table Of Contents
GENERAL CONTENTS 1. MOWER IDENTIFICATION................G-1 2. GENERAL PRECAUTION ................G-2 3. LUBRICANTS ....................G-3 4. TIGHTENING TORQUES (GENERAL USE SCREWS, BOLTS AND NUTS) ......................G-4 5. MAINTENANCE CHECK LIST ............... G-5 6. CHECK AND MAINTENANCE ............... G-6 [1] CHECK POINTS OF DAILY OR EACH USE ........G-6 [2] CHECK POINT OF INITIAL 50 HOURS .......... -
Page 12: Mower Identification
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 1. MOWER IDENTIFICATION When contacting your local KUBOTA distributor, always specify mower serial number. (1) Mower Serial Number (A) RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC (B) RC60-24BR, RC60-27BR W1020623 KiSC issued 11, 2006 A... -
Page 13: General Precaution
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 2. GENERAL PRECAUTION • During disassembly, carefully arrange removed parts in a clean area to prevent confusion later. Screws, bolts and nuts should be installed in their original position to prevent reassembly errors. -
Page 14: Lubricants
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 3. LUBRICANTS Place Capacity Lubricants 0.36 L SAE 90 gear oil Gear Box 0.38 U.S.qts. (API Service GL-5 gear oil) 0.32 lmp.qts. Greasing Universal joint Spindle shafts (Bevel gear shaft and blade shafts) -
Page 15: Tightening Torques (General Use Screws, Bolts And Nuts
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 4. TIGHTENING TORQUES (GENERAL USE SCREWS, BOLTS AND NUTS) Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be tightened according to the table below. Indication on top of... -
Page 16: Maintenance Check List
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 5. MAINTENANCE CHECK LIST To keep the mower working in good condition as well as to avoid any accident and trouble, carry out periodic inspection and maintenance. Check the following points before use. -
Page 17: Check And Maintenance
3. Retighten the mower blade screw to the specified torque. 4. If the mower blade screw is worn or broken, replace it. NOTE • The RC60-24BR and RC60-27BR mower blade screw has left-hand threads. Turn it counterclockwise to tighten. 98.1 to 117.1 N·m... - Page 18 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Checking Gear Box Oil Level 1. Place the mower on level ground. 2. Loosen the check plug (2), and check to see if oil seems from the opening. 3. If the oil level is low, remove the oil filler plug (1) and add new gear oil.
- Page 19 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Greasing 1. Apply grease to the following points as figures. (1) Bevel Gear Shaft (A) RCK54-24B-EC, RCK60-24B-EC, (2) Blade Shaft RCK60-27B-EC (3) Belt Tension Pulley (B) RC60-24BR, RC60-27BR (4) Belt Tension Pivot...
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Page 20: Check Point Of Initial 50 Hours
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL [2] CHECK POINT OF INITIAL 50 HOURS Changing Gear Box Oil 1. Dismount the mower from the tractor, and place the mower on level ground. 2. Remove the oil filler plug (1). -
Page 21: Check Points Of Every 50 Hours
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL [3] CHECK POINTS OF EVERY 50 HOURS Greasing 1. Apply grease to the following position as figures. (1) Front Gauge Wheel Bracket (A) RCK54-24B-EC, RCK60-24B-EC, (2) Front Wheel RCK60-27B-EC (3) Rear Wheel... -
Page 22: Check Point Of Every 150 Hours
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL [4] CHECK POINT OF EVERY 150 HOURS Changing Gear Box Oil 1. See page G-9. W1029013 [5] CHECK POINT OF EVERY 2 YEARS Replacing Gear Box Oil Seal 1. Replace the gear box oil seals (1), (2) with new ones. (See page S-8, 13.) -
Page 23: Setting Up Mower
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL 7. SETTING UP MOWER Assembling Mower CAUTION • Do not operate the rear gauge wheel adjusting lever (4) without support by block (3). 1. Take out all mower components from the case, and assemble the mower. - Page 24 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Mid Hanger Bracket 1. Screw M12 stud bolts (1) in the clutch housing. 2. Attach the mid hanger brackets (2) to the clutch housing with spring washers and nuts. 31.4 N·m Stud bolt 3.2 kgf·m...
- Page 25 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL B2710 1. Assemble the lift cylinder kit as shown in figure. 2. Apply grease to the cylinder joint pin (2) and (3). 3. Apply seal tape to the cylinder adaptor (4) and set the direction as shown in figure.
- Page 26 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Rear Hanger Bracket (3-Point Hitch Lift Type) 1. Insert the rear hanger bracket (1) from left side of the frame holes, and set it with M8 bolt. (1) Rear Hanger Bracket (A) RCK54-24B-EC, RCK60-24B-EC...
- Page 27 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Lift Arm, Lift Link and Connecting Rod 1. Install the lift arms (2), lift links (3) and connecting rods (1) to the rear hanger bracket with plain washers and cotter pins. NOTE •...
- Page 28 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Rear Link (When mounting the mower only) 1. Install the rear links (3) to the mid hanger brackets (1) with plain washers and cotter pins. 2. Attach the lift links (2) to the rear links (3) with clevis pins, plain washers and cotter pins.
- Page 29 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Setting Mower 1. Turn the steering wheel fully left. 2. Install the mower from right side of the tractor. 3. Roll the mower under the tractor, and then return the steering wheel.
- Page 30 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Front Link [Side Discharge] 1. Hook the front link (3) with the clevis pin section to front end of the groove (2), and then turn the stopper (4) as shown in the figure.
- Page 31 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Adjusting Front Link (Lift Cylinder Type) CAUTION • Before starting engine, make sure that all levers (including auxiliary hydraulic control lever) are in neutral position. • Shut off the engine and allow the mower blades to stop before making adjustment.
- Page 32 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM G GENERAL Adjusting Front Link and Connecting Rod (3-Point Hitch Lift Type) CAUTION • Before starting the engine, change the mid-PTO and gear shift lever into neutral. • Shut off the engine and allow the mower blades to stop before making adjustments.
- Page 33 MECHANISM CONTENTS 1. POWER TRANSMISSION ................M-1 2. LIFTING MECHANISM ................... M-3 [1] MOWER LIFT CYLINDER TYPE ............M-3 [2] 3-POINTS HITCH LIFT TYPE..............M-4 KiSC issued 11, 2006 A...
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Page 34: Power Transmission
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 1. POWER TRANSMISSION [RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC] (1) 19T Bevel Gear (RCK60-24B- (2) 16T Bevel Gear (6) Center Blade (10) Blade Shaft EC, RCK60-27B-EC) (3) Pinion Shaft (7) Center Pulley (11) Outer Pulley... - Page 35 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER [RC60-24BR, RC60-27BR] (1) 16T Bevel Gear (4) Universal Joint (7) Bevel Gear Shaft (10) Outer Pulley (2) Pinion Shaft (5) Center Blade (8) Mower Belt (11) Outer Blade (3) 19T Bevel Gear...
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Page 36: Lifting Mechanism
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 2. LIFTING MECHANISM [1] MOWER LIFT CYLINDER TYPE (1) Front Link (3) Lift Link (4) Lift Arm (5) Mower Lift Cylinder (2) Rear Link The lifting of mower is performed by the hydraulic system installed on the tractor. -
Page 37: 3-Points Hitch Lift Type
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER [2] 3-POINTS HITCH LIFT TYPE (1) Front Link (3) Lift Link (5) Connecting Rod (6) Lower Link (2) Rear Link (4) Lift Arm The lifting of mower is performed by the hydraulic system installed on the tractor. - Page 38 3. TIGHTENING TORQUES ................S-3 4. CHECKING, DISASSEMBLING AND SERVICING........S-4 [1] CHECKING AND ADJUSTING ..............S-4 [2] DISASSEMBLING AND ASSEMBLING............S-7 (1) RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC (Side Discharge Mower) ...............S-7 (2) RC60-24BR, RC60-27BR (Rear Discharge Mower) ......S-11 [3] SERVICING ....................S-16 KiSC issued 11, 2006 A...
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Page 39: Troubleshooting
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Blade Does Not Turn • Mid-PTO system malfunctioning Check transmission – • Broken mower belt Replace mower belt Blade Speed Is Slow • Loosen mower belt... -
Page 40: Servicing Specifications
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Pinion Shaft (without Mower Belt) Turning Force Less than 117.7 N – 12.0 kgf 26.5 lbs Turning Torque Less than 1.47 N·m – 0.15 kgf·m 1.08 ft-lbs... - Page 41 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts: See page G-4.) Item N·m kgf·m ft-lbs Mower blade screw 98.1 to 117.7...
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Page 42: Tightening Torques
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Checking Mower Blade 1. Check the cutting edge of mower blade. 2. Sharpen the cutting edges, if the mower blades are as shown in figure (2). - Page 43 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Adjusting Cutting Height (Side Discharge Mower) 1. The cutting height can be adjusted from 38 mm to 102 mm (from 1.5 in. to 4.0 in.). 2. To adjust the cutting height, lift the mower slightly and close the 3-point lowering speed knob (1).
- Page 44 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Adjusting Cutting Height (Rear Discharge Mower) 1. The cutting height can be adjusted from 25 mm to 89 mm (from 1.0 in. to 3.5 in.). 2. To adjust the cutting height, lift the mower slightly and close the 3-point lowering speed knob.
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Page 45: Disassembling And Assembling
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER [2] DISASSEMBLING AND ASSEMBLING (1) RCK54-24B-EC, RCK60-24B-EC, RCK60-27B-EC (Side Discharge Mower) Universal Joint and Belt Covers 1. Remove the universal joint (1). 2. Remove the left and right belt covers (2), (3). - Page 46 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Gear Box and Mower Belt 1. Turn over the mower. 2. Remove the mower belt (1) from the tension pulley (5). 3. Unscrew the left and right gear box mounting screws (3), (4) and remove the gear box (2) from the mower deck.
- Page 47 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Center Pulley Holder 1. Unscrew the center pulley holder screws (5) and reamer screws (10). 2. Remove the upper oil seal (11) and lower oil seal (4). 3. Remove the internal snap ring (3) and ball bearing (2).
- Page 48 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Outer Pulley and Blade Shaft 1. Unscrew the outer pulley mounting nut (22), and remove the outer pulley (25) and feather key (20). 2. Unscrew the pulley holder mounting screws (18), and separate the left pulley holder (30) and plate (26) from the mower deck.
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Page 49: Rc60-24Br, Rc60-27Br (Rear Discharge Mower
W1015130 Mower Blades (Center Blade and Outer Blades) 1. Unscrew the mower blade screw (4), and remove the spline boss (3) for RC60-27BR, lock washer (5) for RC60-24BR, two cup washers (2) and mower blade (1). NOTE • The mower blade screw has left-hand threads. - Page 50 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Blade Boss 1. Remove the external snap ring (2). 2. Remove the blade boss (1). (1) Blade Boss (A) RC60-24BR (2) External Snap Ring (B) RC60-27BR W1015526 KiSC issued 11, 2006 A...
- Page 51 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Gear Box and Mower Belt 1. Loosen the belt tension adjusting nuts (5), and remove the tension spring (4). 2. Unscrew the gear box mounting screws (2), and remove the mower belt (3).
- Page 52 2. Remove the upper oil seal (10) and lower oil seal (8). 3. Remove the internal snap ring (7), ball bearings (4), (6) and collar (5). NOTE • The collar (5) adapts to RC60-27BR only. (When reassembling) • Replace the oil seals (8), (10) with new ones. 77.6 to 90.2 N·m...
- Page 53 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Outer Pulley and Blade Shaft 1. Unscrew the outer pulley mounting nut (18), and remove the outer pulley (21) and feather key (26). 2. Unscrew the pulley holder mounting screws (22), and separate the left pulley holder (24) from the mower deck.
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Page 54: Servicing
RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER [3] SERVICING Turning Torque of Pinion Shaft 1. Remove the mower belt, and reassemble the gear box to the mower deck. 2. Wind a string around the pinion shaft and set a spring balance (or push-pull gauge) to the tip of the string, and then slowly pull the spring balance horizontally to measure the turning force. - Page 55 RCK54/60-24B-EC · RCK60-27B-EC · RC60-24/27BR, WSM ROTARY MOWER Backlash between Bevel Gears 1. Remove the gear box cap (3). 2. Place fuses the 19T bevel gear (2) on the pinion shaft (5). 3. Turn the pinion shaft. 4. Take out the fuses, and measure the thickness of fuses with an outside micrometer.
- Page 56 EDITOR : KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : ( 81 ) 72-241-1129 : ( 81 ) 72-245-2484 E-mail : ksos-pub@kubota.co.jp Printed in Japan 2006. 11, S, EI, EI, e Code No.9Y011-17110 KUBOTA Corporation 2001.