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OM 0377SB-A
Rev3 12-15
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SERIAL NO. 21503940 AND UP
MANUAL PART NUMBER 77700-06538
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Summary of Contents for Kubota B2781B
- Page 1 " " " " SERIAL NO. 21503940 AND UP OM 0377SB-A MANUAL PART NUMBER 77700-06538 Rev3 12-15...
- Page 2 Kubota Corporation notes that specifications and technical information are subject to change without notice and Kubota does not represent or warrant that the information in this publication is completely accurate or current; however, Kubota used reasonable efforts to set forth and include accurate and up to date information in this publication.
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Page 3: Specification
SPECIFICATION Detail Specification SNOWBLOWER B2781B B2782B Shipping weight 455 lbs. (206 kg) 480 lbs. (218 kg) Operating weight 355 lbs. (161 kg) 380 lbs. (172 kg) DIMENSIONS 30.75 in (781 mm) with and without 30.75 in (781 mm) with and without Overall length female hitch female hitch Overall width 51 in (1295 mm) 63 in (1600 mm) 54.5 in (1384 mm) with chute; 24.5 in. 54.5 in (1384 mm) with chute; 24.5 Overall height (645 mm) without chute in. (645 mm) without chute Cutting width 51 in (1295 mm) 63 in (1600 mm) Cutting height 22.63 in (575 mm) 22.63 in (575 mm) Reach from centreline of front 54.9 in (1394 mm) 54.9 in (1394 mm) axle to scraper blade Reach from centreline of front 47.6 in (1209 mm) ... -
Page 4: Table Of Contents
TABLE OF CONTENT SPECIFICATION ........................... 1 INTRODUCTION – TO THE PURCHASER ................... 4 SAFETY PRECAUTIONS ........................5 Before Operation ..........................5 Notice ............................6 Subframe & Snowblower ........................ 6 Before Operation ......................6 Subframe & Snowblower Operation ................7 Transportation ..........................8 Storage ............................ - Page 5 Lubrication & Adjustment ......................21 PARTS ..............................22 Introduction ..........................22 Female Hitch ..........................23 Snowblower Assembly – B2781B ....................24 Snowblower Assembly – B2782B ....................26 Chute with Deflector ........................28 Manual Chute Rotation ........................ 29 Reduction Box ........................... 30 Worm Gearbox ..........................
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Page 6: Introduction - To The Purchaser
INTRODUCTION O THE URCHASER All products are designed to give safe, Illustrations dependable service if they are operated and The illustrations may not necessarily reproduce maintained according to instructions. Read the full detail and the exact shape of the parts understand this manual... -
Page 7: Safety Precautions
SAFETY PRECAUTIONS 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. It is essential that you read the instructions and safety regulations before you attempt to assemble or use this snowblower. -
Page 8: Notice
SAFETY PRECAUTIONS - continued OTICE A safe operator is the best assurance against accidents. All operators, no matter how experienced they may be, should read this operator's manual and all other related manuals before attempting to operate the snowblower. Please read the following section and pay particular attention to all safety recommendations contained in this manual and those labeled on the snowblower and on the tractor. -
Page 9: Subframe & Snowblower Operation
SAFETY PRECAUTIONS - continued Subframe & Snowblower Operation 1. Before leaving the tractor/snowblower 9. Park the tractor/snowblower on level ground, unattended, take possible place the transmission in neutral, set the parking precautions. Park brake, disengage the PTO, lower the snowblower tractor/snowblower level ground,... -
Page 10: Transportation
SAFETY PRECAUTIONS - continued RANSPORTATION 20. Never allow anyone near the work area. 21. Never allow anyone to operate the 1. If the tractor/snowblower is to be driven on public snowblower until they have read the roads, it must be equipped with an SMV manual completely and are thoroughly (Slow Moving Vehicle) sign. -
Page 11: Maintenance
SAFETY PRECAUTIONS - continued Do not attempt to service machine, clear AINTENANCE obstructions or unclog the snowblower with ALWAYS USE GENUINE PARTS WHEN the engine running. Always shut off engine REPLACEMENT PARTS ARE REQUIRED and allow all motion to cease. manufacturer will claim... -
Page 12: Decals
DECALS Replace Immediately if Damaged 70060-01211 (657761) 70060-04325 70060-01212 (2500329) (657762) 70060-02232 (2500484) B2781B: 77700-03073 (2500847) B2782B: 77700-03074 (2500848) 70060-00736 (2500324) 70060-01212 (657762) 70060-01674 77700-04190 (657804) (2500869) 70060-01213 70060-01040 (657763) (655683) OM 0377SB-A... -
Page 13: Assembly
ASSEMBLY NOWBLOWER SSEMBLY The snowblower is pre-assembled at the factory; however, parts in the bag and box must be assembled. Use the present manual and lay out all parts for assembly. Separate bolts and nuts into various sizes. After assembly, torque all the bolts according to the Torque Specification Table enclosed at the end of the manual. -
Page 14: Manual Rotation Installation
ASSEMBLY Manual Rotation Installation (Figures 2a-2b) (For all tractor models except B2320, B2620, B2920, B2301 & B2601. See page 13 for those models) 1. Figure 2a: Attach the handle support (item Figure 2a 2) to the valve stay: - If the upper part of the valve stay is bolted with M6 x 1.00 x 16mm lg bolts and two 6mm lockwashers (item 1), remove them and attach the handle... -
Page 15: Manual Rotation Installation - B2320, B2620, B2920, B2301 & B2601 Tractors
ASSEMBLY Manual Rotation Installation (Figure 3a-3b) (For tractor models B2320, B2620, B2920, B2301 & B2601 only) 1. Figure 3a: Insert the plastic grommet 6. Figure 3b: Insert the universal joint end of (item 10) in the upper hole of the handle the rotation rod (item 1) in the rotation worm support (item 9). -
Page 16: Attaching Snowblower To Tractor
ASSEMBLY Attaching Snowblower to Tractor If using Hydraulic Chute Rotation: (Figures 4-5) 1. Release hydraulic pressure by moving the control valve lever in all directions. 1. Figure 4: Move the quick hitch lever (item 1) rearward to the unlock position. Position 2. -
Page 17: Detaching Snowblower From Tractor
ASSEMBLY Detaching Snowblower from Tractor (Figure 4) 1. Set snowblower in float position, turn engine off, set parking brake and remove WARNING: To avoid serious ignition key. personal injury. Escaping hydraulic/ diesel fluid under pressure can penetrate the skin causing serious injury If using Manual Chute Rotation: 2. -
Page 18: Operation
OPERATION ENERAL REPARATION Hydraulic Chute Rotation 1. Read the operator's manual carefully before using the tractor and snowblower. Be Pushing the hydraulic lever to the right rotates thoroughly familiar with the controls and the chute to the right, in a clockwise direction. proper use of the equipment. -
Page 19: Adjustments
OPERATION DJUSTMENTS Check of the Hub Bolts ATTENTION : To avoid personal (Figure 7) injury, be sure the tractor engine is off, 1. Remove the guard (item 1) by unscrewing the the drive shaft disengaged, and all two bolts (items 2-3). movement has stopped before making any adjustments. -
Page 20: Reduction Chain Tension Adjustment
OPERATION Reduction Chain Tension Adjustment (Figures 8a-8b) 1. Figure 8a: Remove chain cover (item 1). 2. Figure 8a-8b: Loosen the four nuts securing the reduction box (items 2) to the snowblower. 3. Figure 8a: Tighten the chain using the tightening bolt (item 3) on left hand side of fan housing. -
Page 21: Snow Removal Methods
OPERATION EMOVAL ETHODS When removing snow, do not use the snowblower as a dozer blade to push snow. Let the snowblower work its way through deep drifts. If the speed of your tractor is too fast, the snowblower may become overloaded and clog. -
Page 22: Maintenance
MAINTENANCE AINTENANCE ALWAYS USE GENUINE PARTS WHEN REPLACEMENT PARTS ARE REQUIRED. WARNING Before cleaning, adjusting or repairing the snowblower: bring the tractor to a Figure 9 complete stop, lower the implement shut off the engine and remove the ignition key. -
Page 23: Gearbox
MAINTENANCE Gearbox Oil Change (Figure 11) When servicing the gearbox, the sealing of the casing must be restored. To do so, apply a Change the oil in the gearbox and in the layer of silicone to the casing before closing it. reduction box once a year. -
Page 24: Parts
PARTS NTRODUCTION All parts are illustrated in "exploded views" which show the individual parts in their normal relationship to each other. Reference nums are used in the illustrations. These nums correspond to those in the "Reference Num" (REF) column, and are followed by the description and quantity required. O/L - "Obtain Locally"... -
Page 25: Female Hitch
PARTS EMALE ITCH ESCRIPTION Female quick hitch 70060-03214 660019 Hex. bolt 5/8"NC x 1 1/4" PTD 75599-01725 0100092 Lockwasher 5/8" PTD 70001-00804 1200007 Hex. nut 5/8"NC PTD 70001-00802 0900007 OM 0377SB-A... -
Page 26: Snowblower Assembly - B2781B
PARTS – B2781B NOWBLOWER SSEMBLY OM 0377SB-A... - Page 27 PARTS – B2781B NOWBLOWER SSEMBLY ESCRIPTION Housing 77700-02716 669771 Worm Gear Box 77700-04234 4500137 Gear Box Support 70060-00672 665842 Auger Ass'y (RH) 70060-04235 660375 Auger Ass'y (LH) 70060-04234 660374 70060-00733 665998 Shear plate 70060-00734 665999 Reinforcement bracket 70060-00812 654468 Bearing 1 1/4", 4 holes...
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Page 28: Snowblower Assembly - B2782B
PARTS – B2782B NOWBLOWER SSEMBLY OM 0377SB-A... - Page 29 PARTS – B2782B NOWBLOWER SSEMBLY ESCRIPTION Housing 77700-02717 669772 Left auger 70060-04313 660376 Right auger 70060-04314 660377 Bearing 77700-05004 4300118 Worm Gearbox 77700-04234 4500137 Gearbox support 70060-00672 665842 70060-00733 665998 Shear plate 70060-00734 665999 Adjustable Skid Shoe 77700-02283 669586 Cutting edge 70060-03421 659531 Bushing (oilite)
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Page 30: Chute With Deflector
PARTS HUTE WITH EFLECTOR ESCRIPTION Chute assembly w/ english decals 77700-02292 669681 Knob 5/16"NC 70060-01419 657309 Flat washer nylon 11/32" dia. PTD 70060-03052 658467 Carriage bolt 5/16"NC x 1" GR. 5, PTD 70001-00793 0300003 Flat washer nylon 7/16" dia. 70060-03053 658468 Hand guard 70060-01358... -
Page 31: Manual Chute Rotation
PARTS ANUAL HUTE OTATION ESCRIPTION Rotation worm 70060-00694 665953 Rotation bracket 70060-00693 665952 Plastic bushing short 1 5/16" 70060-01350 657335 Serrated flange nut 3/8" NC, PTD 70060-00791 0900035 Rotation yoke 70060-03416 659595 Universal block 70060-03417 658193 Spring pin 1/4" x 1 1/4" 77700-02237 1600015 Rotation tube... -
Page 32: Reduction Box
PARTS EDUCTION OM 0377SB-A... - Page 33 PARTS EDUCTION ESCRIPTION Reduction box 77700-03078 669971 Bearing with locking collar 70060-70339 665495 Bearing flange 70060-01426 656589 Shaft 70060-01618 658223 Sprocket (50C11) 70060-03497 660017 Allen socket setscrew 5/16"NC x 5/16" 77700-00701 0500009 Key 1/4" x 1/4" x 1 1/4" 70060-00814 654643 Carriage bolt 5/16"...
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Page 34: Worm Gearbox
PARTS - 77700-04234 - B2781B & B2782B EARBOX ESCRIPTION Gearbox assembly 77700-04234 4500137 Input shaft 77700-04235 4500147 Output hollow shaft 77700-04236 4500149 Bearing 1" int 77700-04237 4500150 Bearing 1 1/4" int 77700-04238 4500151 Bearing 45mm int 77700-04239 4500152 Oil seal... -
Page 35: Driveline Female Half
PARTS (70060-03224) RIVELINE EMALE ESCRIPTION Driveline female half ass'y 70060-03224 658505 Inner shield 70060-03429 658511 Nylon repair kit 70060-04238 661555 Yoke & female shaft ass'y 70060-03430 658508 Universal joint kit 70060-01020 654478 Yoke 1" dia.hole. 70060-01019 655740 OM 0377SB-A... -
Page 36: Available Options
AVAILABLE OPTIONS MB13-03-22 B2756 remplace le B2784B re:MBu HYDRAULIC CHUTE ROTATION ELECTRIC CHUTE DEFLECTOR B2756 B2516A HYDRAULIC CHUTE DEFLECTOR HYDRAULIC CHUTE DEFLECTOR WITH DEVIATOR BFL2518A BL2666A OM 0377SB-A... -
Page 37: Torque Specification Table
TORQUE SPECIFICATION TABLE ENERAL SPECIFICATION TABLE SE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN Note:These values apply fasteners as received from supplier dry, or when lubricated with normal engine oil. They do not apply if special graphited or moly sidulphide greases or other extreme pressure lubricants are used. These values apply to dry conditions;... - Page 40 Printed in Canada...
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