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Kubota B2791A, Operator And Parts Manual

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Kubota B2791A Operator And Parts Manual Download Page 31

MAINTENANCE 

OM 0336QH-A 

29

M

AINTENANCE 

 

(Figure 13) 

 

 

D

ESCRIPTION

 

T

IME 

I

NTERVAL

 

M

AINTENANCE 

R

EQUIRED

 

Subframe B2791A: 

After the first 8 hours of 
operation 

Hardware 

 

40 hours of operation 

Retighten all bolts and nuts according to the Torque 
Specification Table 

After the first 4-8-12-16 

and 20 hours of 

operation 

"T" Bolt 3/4" NF x 4" 

20 hours of operation 

Retighten the "T" bolt 

Pivot Bushings

 

20 hours of operation 

Lubricate the two pivot bushings with oil having a 

SAE viscosity rating of 10 minimum (ex: 10W30) 

Drive Systems B2792 and B2793 (Option):

 

Flange Bearings 

20 hours of operation 

Grease the two flange bearings 

Driveline 

40 hours of operation 

Grease the universal joints, clean and grease the 

female and male driveline's sliding junctions, clean 

and grease all quick connect yokes 

Output Shaft 

40 hours of operation 

Clean and grease the extremities 

 
IMPORTANT: In case you use the subframe and drive kit less than 20 hours every year and 
before storage, perform all maintenance section without taking the hours into consideration

 

 
 
 
 

40h

40h

20h

40h

40h

40h

20h

Figure 13 

Summary of Contents for B2791A

Page 1: ...700 01108 11 09 O OP PE ER RA AT TO OR R S S A AN ND D P PA AR RT TS S M MA AN NU UA AL L MALE QUICK HITCH AND SUBFRAME B2791A MID PTO DRIVE KITS B2792 B2793 FOR TRACTORS B2630 B2710 B2910 B3030 B3200 AND B7800 SERIAL NO 2808029 AND UP ...

Page 2: ......

Page 3: ...13 Installing the PTO Drive Kit B2793 Optional 14 Mounting the Quick Hitch and Subframe on the Tractor 15 Tractor WITHOUT Front Loader Brackets 15 Tractor WITH Front Loader Brackets 17 Installing the Hydraulic Components 22 Removing the Subframe from the Tractor 24 Reinstalling the Subframe on the Tractor 26 Installing the Broom s Chain on the Subframe 28 MAINTENANCE 29 PARTS 30 Introduction 30 Ma...

Page 4: ...ecommendations contained in this manual and those labeled on the equipment and on the tractor Follow the safety recommendations and make sure that those with whom you work follow them Illustrations The illustrations may not necessarily reproduce the full detail and the exact shape of the parts or depict the actual models but are intended for reference only Direction Reference All references to rig...

Page 5: ... the owner s responsibility to be certain anyone operating this product reads this manual and all other applicable manuals to become familiar with this equipment and all safety precautions Failure to do so could result in serious personal injury or equipment damage If you have any questions consult your dealer BEFORE OPERATION Children 1 Tragic accidents can occur if the operator is not alert to t...

Page 6: ...move all objects that may be thrown or cause damage to the equipment 4 Set transmission to neutral and disengage clutch if equipped before starting the engine 5 Do not operate equipment in wintertime without wearing adequate winter garments Always wear protective clothing 6 Never attempt to make any adjustments while engine is running Read this manual carefully to acquaint yourself with the equipm...

Page 7: ...w the rotating parts to stop BEFORE making any repairs adjustments or inspections 9 For your safety do not work under any hydraulically supported machine elements they may creep down suddenly drop or be accidentally lowered 10 If the implement starts to vibrate abnormally disengage the PTO stop the engine immediately and check for cause Excessive vibration is generally a sign of trouble 11 Do not ...

Page 8: ...ed by annular groove on tractor drive shaft 22 Never allow anyone to operate the implement until they have read the manual completely and are thoroughly familiar with basic tractor and implement operation 23 Make sure the tractor is counterweighted as recommended by your dealer Weights provide the necessary balance to improve stability traction and steering 24 Always make sure all implement compon...

Page 9: ...s for your safety They can settle suddenly leak down or be accidentally lowered 7 Do not attempt to service machine clear obstructions or unclog the equipment with the engine running Always shut off engine and allow all motion to cease 8 The manufacturer will not claim responsibility for fitment of unapproved parts and or accessories and any damages as a result of their use 9 Make sure all shields...

Page 10: ... to be replaced has a sign on it obtain a new safety sign from your dealer and install it in the same place as on the removed part 4 Repaint all parts from which paint has worn or peeled 5 Lubricate the subframe and implement as instructed under Lubrication section 6 When the subframe and implement are dry oil all moving parts Apply oil liberally to all surfaces to protect against rust 7 Store in ...

Page 11: ...DECALS OM 0336QH A 9 70060 01437 657364 70060 04251 662675 Replace Immediately if Dammaged ...

Page 12: ...Place the subframe components on a clean and flat surface 2 Completely grease the exterior of the two 1 3 4 pivot bushings item 1 and attach the male quick hitch item 2 to the subframe item 3 using the two 7 8 NC x 3 lg hex bolts item 4 15 16 int flat washers item 5 7 8 lockwashers item 6 and 7 8 NC nylon insert locknuts item 7 see IMPORTANT note Make sure to insert the 7 8 NC x 3 lg bolts item 4 ...

Page 13: ...ockwashers item 5 and 5 8 NC nylon insert locknuts item 6 2 Slide the 3 4 NF x 4 lg T bolt item 7 in the 3 4 lockwasher internal teeth item 8 and the subframe tube item 9 Insert the 3 16 x 7 8 lg nylon peg item 11 in the T bolt hole item 7 and screw the T bolt four turns in the stopper item 10 3 Install the plastic handle item 12 on the engagement lever item 13 11 10 6 5 4 4 1 2 9 3 8 7 13 12 TRAC...

Page 14: ...item 4 three cotter pins item 5 supplied with the cylinder and the 3mm x 65mm hairpin item 6 Note 2 The fourth cotter pin supplied with the cylinder will not be used IMPORTANT When using PTO driven attachments snowblower and broom you must always use position 3A Position 3B is used only during transport of the attachments in a trailer and they must never be operated in that position Only the blade...

Page 15: ...t it exceeds the rear cross plate by 5 1 8 Apply threadlocker on the bearing setscrews and tighten securely Then grease each flange bearing 5 After the subframe is mounted on the tractor see following pages for the procedure attach the longest yoke of the fixed driveline item 7A to the output shaft item 3 Attach the driveline s quick connect yoke item 7B to the tractor s mid PTO IMPORTANT In order...

Page 16: ...s and tighten securely Then grease each flange bearing 5 After the subframe is mounted on the tractor see following pages for the procedure attach the longest yoke of the fixed driveline item 7A to the output shaft item 3 Attach the driveline s quick connect yoke item 7B to the tractor s mid PTO IMPORTANT In order to avoid damaging the fixed driveline item 7 remove it when using the blade 6 The dr...

Page 17: ...thout tightening the left rear bracket item 1 and the spacer 3 8 item 2 to the tractor frame item 3 using the two M14 x 1 50mm x 50mm lg hex bolts item 4 14mm lockwashers item 5 and 5 8 flat washers item 12 2 Attach without tightening the right rear bracket item 11 and the spacer 3 8 item 2 to the tractor frame item 3 using the two M14 x 1 50mm x 50mm lg hex bolts item 4 14mm lockwashers item 5 an...

Page 18: ... PTO place all control levers in neutral shut off the engine remove the ignition key and allow the rotating parts to stop BEFORE attaching the subframe underneath the tractor 1 Attach without tightening the left rear bracket item 1 and the spacer 3 8 item 2 to the tractor frame item 3 using the two M16 x 1 50mm x 50mm lg hex bolts item 4 and 16mm lockwashers item 5 2 Attach without tightening the ...

Page 19: ... hardware supplied with the subframe 2 Attach without tightening the left rear bracket item 1 to the tractor frame item 3 using the two M14 x 1 50mm x 50mm lg hex bolts item 4 14mm lockwashers item 5 and 5 8 flat washers item 12 3 Attach without tightening the right rear bracket item 11 to the tractor frame item 3 using the two M14 x 1 50mm x 50mm lg hex bolts item 4 14mm lockwashers item 5 and 5 ...

Page 20: ...ttaching the subframe underneath the tractor 1 Remove the existing harware from the front loader bracket item 2 and use the hardware supplied with the subframe 2 Attach without tightening the left rear bracket item 1 to the tractor frame item 3 using the two M16 x 1 50mm x 50mm lg hex bolts item 4 and 16mm lockwashers item 5 3 Attach without tightening the right rear bracket item 11 to the tractor...

Page 21: ...ractor hood 6 Figure 6 Attach without tightening the hose support item 6 to the hose support bracket item 1 with a 1 2 NC x 1 1 2 lg hex bolt item 7 a 1 2 lockwasher item 8 and a 1 2 NC nylon insert locknut item 9 7 Figure 6 Place the hose support item 6 at 14 for B3200 at 8 for all other tractors from the tractor bumper as indicated on figure 6 and tighten the M14 x 1 50mm x 50mm lg hex bolt item...

Page 22: ...inst the bumber and tighten the 3 4 NF x 4 lg T bolt item 4 securely NOTE If the subframe does not press completely against the bumber check if there is any interference between the stopper fig 2 item 10 and the lower portion of the bumper If that s the case loosen the 3 4 NF x 4 lg T bolt item 4 until the interference is eliminated IMPORTANT During the first 20 hours of use tighten the 3 4 NF x 4...

Page 23: ...ays point the handle of the L bolt item 5 towards the rear of the tractor as shown on figure 8 12 First tighten the four M14 x 1 50mm x 50mm lg bolts item 7 at 93 lb pi or 126 N M Then tighten the ø5 8 NC X 2 lg item 8 hex bolts at 165 lb pi or 224 N M and finish with the four 5 8 NC X 2 1 4 lg hex bolts item 6 at 165 lbs ft or 224 N M TRACTORS B7800 B3200 B2710 B2910 1 2 3 5 4 6 6 7 8 Figure 8 TR...

Page 24: ...c port 2B Connect the 3 8 end of the 1 4 x 64 hose item 8 to the 90 elbow item 1 of hydraulic port 2A 3 Apply a few layers of thread sealant to the 1 4 NPT end of each hose items 8 et 9 Install the dust plugs item 4 as well as the female quick couplers item 7 to the 1 4 NPT male end of each hose item 8 et 9 Attach a red identification ring item 5 to the lower hose item 2A and a blue identification...

Page 25: ... the tractor valve making sure to also reverse the identification rings 6 Insert the hoses item 8 et 9 in the hose support item 11 and secure the hoses where needed with the two nylon tie wrap item 10 7 After having started the tractor engine and letting the oil circulate in the hydraulic system check the oil level and add some if needed WARNING To avoid serious personal injury Escaping hydraulic ...

Page 26: ...g the subframe from the tractor 1 Remove the attachment broom blade or snowblower from the subframe following the procedure in the attachment s operator s manual 2 If installed remove the male half driveline fig 4 item 8 and the fixed driveline fig 4 item 7 3 Relieve pressure from the hydraulic system by moving the tractor s hydraulic valve lever in the floating position 4 Disconnect the hoses fig...

Page 27: ...ick hitch item 4 until you can detach the subframe from the tractor see figure 10 NOTE If you cannot remove the subframe check if there is any interference between the stopper fig 2 item 10 and the lower portion of the bumper If that s the case loosen the 3 4 NF x 4 lg T bolt item 3 until the interference is eliminated 10 Then place the subframe on the ground remove it from under the tractor and i...

Page 28: ...vel ground place the transmission in neutral set the parking brake disengage the PTO place all control levers in neutral shut off the engine remove the ignition key and allow the rotating parts to stop BEFORE attaching the subframe underneath the tractor 1 Remove the 1 4 round wire lock pin item 6 and the 15 16 x 10 3 8 L pin item 5 from the B2791A subframe 2 Raise the nose of the male quick hitch...

Page 29: ...d secure with the 1 4 round wire lock pin item 6 NOTE If it is difficult to insert the 15 16 x 10 3 8 lg L pin item 5 loosen the 3 4 NF x 4 lg T bolt item 4 and after having inserted the 15 16 x 10 3 8 lg L pin item 5 tighten the 3 4 NF x 4 lg T bolt item 4 IMPORTANT In order to prevent interference with the front tires make sure to always point the handle of the L bolt item 7 towards the rear of ...

Page 30: ... bolt item 3 and the 3 8 NC hex nut item 4 3 Attach the chain retaining plate item 5 to the subframe pin item 6 with the 3mm x 65mm lg hairpin item 7 Always use position A of the retaining plate 4 Adjust the chain so the male hitch is at 3 to 3 1 2 from the ground when it s lowered and supported by the chain IMPORTANT Always place the valve in floating position when lowering the broom Do not apply...

Page 31: ...bushings with oil having a SAE viscosity rating of 10 minimum ex 10W30 Drive Systems B2792 and B2793 Option Flange Bearings 20 hours of operation Grease the two flange bearings Driveline 40 hours of operation Grease the universal joints clean and grease the female and male driveline s sliding junctions clean and grease all quick connect yokes Output Shaft 40 hours of operation Clean and grease the...

Page 32: ...are that is available at your local hardware supply All reference to right and left forward or rearward from the operator s view standing behind the machine Orders must give the complete description correct part number the total amount required the serial number the method of shipment and the shipping address The manufacturer reserves the rights to change modify or eliminate from time to time for ...

Page 33: ...1 70060 01404 657384 3 Spring 1 70060 01402 657385 4 Quick hitch latch 1 70060 01612 657676 5 Engagement lever 1 70060 01613 657681 6 Male quick hitch 1 70060 02382 667255 7 Nut nylon insert ø3 8 NC PTD 1 O L O L 8 Flat washer ø9 16 PTD 1 O L O L 9 Cotter pin ø3 32 x 3 4 PTD 1 O L O L 10 Cotter pinø1 8 x 1 PTD 2 O L O L 11 Bolt ø3 8 NC x 1 1 2 lg Gr 5 PTD 1 O L O L ...

Page 34: ...PARTS OM 0336QH A 32 MALE QUICK HITCH AND SUBFRAME B2791A 24 21 15 10 27 23 11 17 17 9 29 1 31 6 2 3 4 5 6 7 8 12 13 14 16 18 19 20 22 25 26 29 30 30 28 ...

Page 35: ...758 665826 11 Stopper 1 70060 00379 666546 12 Bolt T 3 4 NF X 4 lg 1 70060 00380 666547 13 Peg nylon ø3 16 x 7 8 lg 1 70060 00382 666548 14 Hose support 1 70060 02149 666925 15 Hose support bracket 1 70060 02157 667027 16 Subframe 1 70060 02376 667251 17 Male quick hitch ass y 1 70060 02385 667254 18 Bolt hex 1 2 NC x 1 1 2 gr 5 PTD 1 O L O L 19 Bolt hex 7 8 NC x 3 gr 5 PTD 2 O L O L 20 Bolt M14 x...

Page 36: ...PARTS OM 0336QH A 34 MALE QUICK HITCH AND SUBFRAME B2791A CONT D ...

Page 37: ...D 4 O L O L 8 Bolt hex 5 8 NC x 2 1 4 gr 5 PTD 4 O L O L 9 Bolt M14 x 1 5 x 50mm lg PTD 4 70060 02166 0200041 10 Nut nylon insert 5 8 NC PTD 8 O L O L 11 Lockwasher 5 8 PTD 8 O L O L 12 Lockwasher 14mm PTD 4 70060 02169 1200014 13 Flat washer ø11 16 int PTD 16 O L O L 14 Round wire lock pin ø1 4 PTD 1 70060 01929 1900006 15 Bolt M16 x 1 5 x 50mm lg PTD 4 70060 02446 0200092 16 Lockwasher 16mm PTD ...

Page 38: ...2 1 Output shaft 1 x 19 3 4 lg 1 70060 02392 4700057 2 Driveline S6 37 1 4 1 70060 04541 4700121 3 Bearing ø1 assembly 2 70060 00387 4300025 4 Bearing ø1 2 5 Grease fitting 1 4 NF 2 70060 00940 654106 6 Allen setscrew 1 4 NF x 1 4 gr5 black 4 O L O L 7 Bolt hex 5 8 NC x 1 3 4 lg PTD 4 O L O L 8 Nut nylon insert 5 8 NC PTD 4 O L O L 9 Lockwasher 5 8 PTD 4 O L O L 10 Driveline male S6 X14 25 1 70060...

Page 39: ...284 1 Output shaft 1 x 24 lg 1 70060 02393 4700065 2 Driveline S6 37 1 4 1 70060 04541 4700121 3 Bearing ø1 assembly 2 70060 00387 4300025 4 Bearing ø1 2 5 Grease fitting 1 4 NF 2 70060 00940 654106 6 Allen setscrew 1 4 NF x 1 4 gr5 black 4 O L O L 7 Bolt hex 5 8 NC x 1 3 4 lg PTD 4 O L O L 8 Nut nylon insert 5 8 NC PTD 4 O L O L 9 Lockwasher 5 8 PTD 4 O L O L 10 Driveline male S6 X14 25 1 70060 0...

Page 40: ...line ass y male part 1 70060 02171 4700036 2 Journal cross 1 70060 01020 654478 3 Spring lock yoke repair kit 1 70060 01478 658113 4 Quick disconnect yoke ass y 1 70060 01487 658251 5 Outer shield 1 70060 03757 660906 6 Yoke and male shaft 1 70060 03749 660888 7 Nylon repair kit 1 70060 04238 661555 ...

Page 41: ...T CODE 1 Fixed driveline 37 1 4 1 70060 04541 4700121 2 Spring lock repair kit 1 70060 01478 658113 3 Spring lock yoke assembly 1 70060 02803 4700116 4 Cross bearing kit 2 70060 01020 654478 5 Fixed length double center 1 70001 00805 665238 6 Yoke 1 70060 01148 656492 ...

Page 42: ...AVAILABLE EQUIPMENT OM 0336QH A 40 60 ROTARY BROOM 60 or 72 BLADE 51 or 63 SNOWBLOWER Front or Rear Mount ...

Page 43: ...es do not apply if lubricants are used BOLT SIZES SAE TORQUE INCHES Pounds Foot Newton Meters 1 4 5 7 5 16 10 14 3 8 20 27 7 16 25 41 1 2 88 119 5 8 165 224 3 4 297 403 9 16 121 164 7 8 440 597 1 638 865 1 1 8 840 1139 1 1 4 1180 1600 1 3 8 1570 2129 1 1 2 2070 2807 BOLT SIZES METRIC TORQUE MILLIMETERS Pounds Foot Newton Meters M6 10 13 M8 22 30 M10 40 54 M12 59 80 M14 93 126 M16 130 176 M18 168 2...

Page 44: ...Printed in Canada ...

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