Kubota L4474, Operator And Parts Manual

Page 1: ...N NU UA AL L L L4 44 47 74 4 7 74 4 C CO OM MM ME ER RC CI IA AL L S SN NO OW WB BL LO OW WE ER R L L4 44 48 85 5 8 80 0 C CO OM MM ME ER RC CI IA AL L S SN NO OW WB BL LO OW WE ER R SERIAL NO 21400001 AND UP F Fo or r 4 4 c cy yl li in nd de er r G GL L4 40 0 G GL L6 60 0 s se er ri ie es s t tr ra ac ct to or rs s ...

Page 2: ...ess or implied including but not limited to warranties of merchantability and fitness for a particular purpose and Kubota shall not be liable for any damages whether compensatory direct indirect incidental special or consequential arising out of or in connection with the use of this publication or the information therein The Product s described in this Publication are designed and manufactured onl...

Page 3: ...e Skid Shoe Material High Carbon steel High Carbon steel Back Plate Thickness 3 16 3 16 End Plate Thickness 0 120 0 120 Back Plate Thickness 3 16 CHT100 3 16 CHT100 Impeller Blade Thickness 5 16 5 16 Side Panel Bottom Thickness 1 2 1 2 Cutting Edge High Carbon steel Replaceable reversible High Carbon steel Replaceable reversible Cutting Edge Dimension 1 2 x 3 1 2 x 3 Parking Stand Standard Standar...

Page 4: ...of the Chute 15 INSTALLATION WITH THE MANUAL COMPLETION KIT L4433 17 Connecting the Hoses to the Snowblower 17 Connecting the Driveline to the Snowblower 18 INSTALLATION WITH AUTO CONNECT COMPLETION KIT L4434 Refer to the Instruction sheet of the L4434 kit Installation of the Snowblower on the Tractor 19 Routing of the Hoses and electrical wire on the Tractor 21 Detaching Snowblower from 4 Point H...

Page 5: ...ing the Torque 28 PROBLEM HYDRAULIC CHUTE ROTATION IS SLOW OR DOESN T TURN 29 Lubrication 30 ELECTRICAL DIAGRAM 31 PARTS 32 Introduction 32 Three Part Chute 33 Snowblower 34 Snowblower cont d 36 Chain Idler 38 Reducer 39 Hydraulic System 40 4 Point Hitch 42 Snowblower completion kit L4433 43 Electrical Parts 44 Reduction box 45 Worm Gearbox COMER 46 Worm Gearbox STAR 47 Male Driveline 48 TORQUE SP...

Page 6: ...fety recommendations contained in this manual and those labeled on the snowblower 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...

Page 7: ...t is the owner s responsibility to be certain anyone operating this product reads this manual and all other applicable manuals to become familiar with this snowblower and all safety precautions Failure to do so could result in serious personal injury or snowblower damage If you have any questions consult your dealer BEFORE OPERATION Children Tragic accidents can occur if the operator is not alert ...

Page 8: ... be thrown or cause damage to the snowblower 4 Set transmission to neutral and disengage clutch if equipped before starting the engine 5 Do not operate snowblower 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 snowblower as well as the tra...

Page 9: ... PTO lower the snowblower to the ground place all control levers in neutral shut off the engine remove the ignition key and allow the rotating parts to stop BEFORE unclogging the housing or the chute and making any repairs adjustments or inspections Use only a 36 long stick of wood to unclog the snowblower 10 If the snowblower starts to vibrate abnormally disengage the PTO stop the engine immediat...

Page 10: ...heck local traffic codes that may apply to unit usage on public roads and highways in your area 2 Check local traffic codes that may apply to unit usage on public roads and highways in your area The use of flashing amber lights is acceptable in most localities However some localities may prohibit their use 3 Always disengage the snowblower before transport STORAGE Before storing the snowblower cer...

Page 11: ... not attempt to service machine clear obstructions or unclog the snowblower 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 and guards are securely in place following all service cleaning or repair work 10 ...

Page 12: ...64391 70060 01211 657761 70060 04325 2500329 70060 01212 657762 70060 01674 657804 70060 01213 657763 77700 04190 2500869 70060 01212 657762 KUBOTA 70060 02232 2500484 L4474 77700 04506 2500896 L4485 77700 04507 2500897 70060 01040 655683 77700 01986 664383 70060 02833 664391 ...

Page 13: ...he two 1 2 NC x 1 1 2 plow bolts and 1 2 NC stovers locknuts that are in the hardware bag in the same position as the other cutting edge plow bolts already installed Installation of the Electric Harness on the Tractor Figures 1 to 5 Not required for L4554A Automatic 4 point Hitch CONTINUE to Step Installation of the Hitch Protectors at page 14 figure 9 1 Figure 1 Install the red wire to the batter...

Page 14: ...n use a wire from the right side of the dash see figure 3a 5 Figure 4 The electric harness is made to facilitate installation there are junctions at different locations Pass the wires previously installed so they do not get in the way of the operator Reconnect the wire junctions to their related color 6 Figure 4 5 Push the wires under the console making sure to keep an easy access to the fuse hold...

Page 15: ...bber cap on the switch 2 Figure 7 Place the switchbox item 1 on the lever in a position that will be comfortable when the hand is on the knob and attach with the box clamp item 2 and two 1 4 NC x 3 4 hex bolts NOTE Figure 6a Tighten the bolts just enough to securely fix the clamp and the switchbox on the lever DO NOT TIGHTEN TOO MUCH to not deform the clamp NOTE Figure 6b Make sure the clamp is in...

Page 16: ...onnector DIN Figure 8a 1 Run the wiring harness with DIN connector along the selector valve hydraulic hoses 2 Install the DIN connector item 2 on the selector valve item 3 with the screw item 1 supplied with the connector Installation of the Hitch Protectors Figure 9 Install the left hitch protector item 1 and the right hitch protector item 2 on each side of the snowblower 4 point hitch item 3 usi...

Page 17: ... bolts and 5 8 serrated flange nuts items 3 4 previously removed Do not tighten 3 Figure 11 Insert two 1 2 x 3 1 4 bolts item 5 to join together the two retaining plates Bring the two retaining plates closer When enough threads of the 1 2 x 3 1 4 bolts item 5 exceed the holes screw in the 5 8 x 1 1 2 bolts item 3 slightly When the bolt ends item 5 exceed sufficiently secure with two 1 2 nylon inse...

Page 18: ...ance between the retaining plates and the chute base is leveled C Retighten the bolts item 12 according to the Torque Specification Table at the end of the manual D Adjust the gears to a distance between 1 32 and 1 16 by screwing the two bolts item 7 Secure with the nuts item 6 moving those against the anchoring flat bar item 5 Tighten the four bolts item 15 at 30 lbs ft 41 N M E Run a test at low...

Page 19: ...hose support and the cylinder to maintain the hoses together 4 Figure 14 Install the two 9 16 JIC x 7 16 ORB male adaptors item 1 in the two cavities on top of the selector valve Install the two 9 16 JIC female x 9 16 JIC male elbows item 2 to the two adaptors item 1 5 Figure 15 Install a protective nylon sheath item 10 on each hydraulic hose items 1 2 The protective nylon sheath should cover the ...

Page 20: ... grease panel item 1 should move freely but be tight enough to keep it in place 3 Figure 17 Install the driveline guard item 3 on the reduction box with two 7 16 NC x 3 4 hex bolts and 7 16 lockwashers items 7 8 Use the top hole on the left side of the guard 4 Figure 18 Install a 5 32 x 1 cotter pin item 1 on the driveline support rod item 2 and into the guard bushing item 3 Install the compressio...

Page 21: ...r and raise the snowblower completely with the tractor hydraulic lever 3 Turn off tractor engine set parking brake and remove the ignition key 4 Figure 21 Release the pin item 1 on each side of the 4 point hitch If the pins do not insert into the snowblower lower bushings the snowblower is not properly sitting in the 4 point hitch Restart previous steps 1 and 2 5 Turn on tractor engine raise the 4...

Page 22: ...viator wire item 4 to the power supply wire located near the valve support Turn on tractor engine by moving the hydraulic lever sideways and the chute will turn See position of the hoses NOTE If operation is not as desired reverse the two hydraulic hoses 10 Figure 21 Take one identification ring from each hose items 3 4 and insert them on the tractor quick couplers matching the colors from the hos...

Page 23: ...nd insert the hoses and electrical wire into the hose clamps along the tractor frame as indicated by the arrows making sure to leave some free hose on the right side of the tractor to prevent tension when the snowblower is raised or lowered to its maximum Electrical Wiring Hydraulic Hoses ...

Page 24: ...tion 6 Slowly release the hydraulic pressure with the tractor lever until the snowblower sets on the ground Release the system hydraulic pressure by moving the control valve lever in all directions 7 Disconnect the hydraulic hoses from the tractor female couplers and place the dust plugs and caps on the couplers Remove the hoses from the tractor hose clamps Disconnect the electrical wire also 8 Sl...

Page 25: ...d will depend on the depth and density of the snow to be cleared Normally ground speed will range from 4 to 7 MPH for light dry snowfalls 3 to 6 inches and 1 to 3 MPH for heavy wet or drifted snow To transport disengage the drive shaft and raise the snowblower to full transport height IMPORTANT Use full RPM power when removing wet sticky snow Low RPM power will tend to clog the chute CAUTION Do no...

Page 26: ...ustment Figure below A COMPRESSION SPRING 1 Every ten operating hours check the height of the compression spring item 1 to have chain idler maximal efficiency 2 Adjust the distance from the top of the welded bushing item 2 to the bottom of the flat washer item 3 by tightening the nut item 4 to obtain A 4 1 4 B DRIVING CHAIN 1 At the end of the operating season check the chain elongation by measuri...

Page 27: ...ft shut off the tractor engine remove the ignition key wait for all movement to stop and then clear the snow from the chute A definite pattern of operation is required to thoroughly clean the snow area These patterns will avoid throwing snow in unwanted places as well as eliminating a second removal of snow Where it is possible to throw the snow to the left and right above as on a long driveway it...

Page 28: ...replacement use the following parts only Drive Shaft Shearbolt 5 16 NC x 1 1 4 gr 5 including lockwasher and nut Part 70060 04441 Fan Bolt 5 16 x 1 3 4 gr 5 including lockwasher and nut Part 70060 04440 WARNING Provide adequate blocking before working under the snowblower when in the raised position Driveline IMPORTANT When the snowblower is not used for more than two weeks perform driveline maint...

Page 29: ... or dirt can affect the tightening of the bearings and the performance of the Loctite no 242 243 that will be used 2 Install and grease the o ring item 2 on the cover item 1 3 Apply 3 drops of Loctite no 242 243 at an interval of 120 degrees on the inside threads of the casing item 3 4 Apply 3 drops of Loctite no 242 243 at an interval of 120 degrees on the outside threads of the cover item 1 5 Sc...

Page 30: ...ap item 5 and screw the cap item 5 to increase the torque or unscrew to decrease it 6 Reinstall the seals item 1 STORAGE Before storing the subframe or snowblower certain precautions should be taken to protect it from deterioration 1 Clean the subframe and snowblower thoroughly 2 Make all the necessary repairs 3 Replace all safety signs that are damaged lost or otherwise become illegible If a part...

Page 31: ...s locked between components 3 Figure below Check if there are residues in the hydraulic circuit To do so first verify if the chute rotates well in one direction If so remove the 1 4 x 1 hex bolt item 1 1 4 lockwasher item 2 1 4 flat washer item 3 the motor gear item 4 and the two 12mm flat washers item 6 attached to the motor shaft item 5 and activate the rotation in the direction the motor turns ...

Page 32: ... hours and after each operation Lubricate with chain saw lubricant Reduction box Gearbox Once a month Check oil level If needed add AGMA 5EP extreme pressure oil SAE 80W90 gear oil or equivalent Once a year Replace oil Chain idler 24 hours of operation Grease idler fitting Chute 16 hours of operation Oil the pivots 24 hours of operation Grease the grease fittings on the hinge pins Bearing 24 hours...

Page 33: ...ELECTRICAL DIAGRAM OM 0427SBC A 31 ELECTRICAL DIAGRAM ...

Page 34: ...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 technical or other reasons certain or all data specifications or the product or products themselves without any liability or obligation The parts listed here are av...

Page 35: ... 1 77700 01945 669036 2 Middle deflector 1 77700 01946 669037 3 Upper deflector 1 77700 01947 669038 4 Hinge pin 2 77700 01948 669039 5 Flat bar 2 77700 01949 669040 6 Nut nylon insert 3 4 PQE 4 75599 31918 1000013 7 Grease fitting 1 8 NPT straight 4 70060 04174 656493 8 Flat washer 10mm PTD 4 70060 01942 1400019 FIG 000100_RAD1511001 ...

Page 36: ...PARTS OM 0427SBC A 34 SNOWBLOWER FIG 000200_RAD1511015 ...

Page 37: ... 4 75599 31933 1100003 17 Bolt hex 5 8 NC X 2 gr 5 PTD 1 75599 01740 0100095 18 Lockwasher 5 8 PTD 1 75599 33017 1200007 19 Flat washer 5 8 11 16 int PTD 1 75599 32017 1400008 20 Key 5 16 X 3 8 X 3 1 2 lg 1 77700 04624 4500164 21 Bolt hex 1 2 NC x 1 gr 5 PTD 8 75599 01520 0100068 22 Chain 60H X 94 links inc connecting link 1 77700 02219 655788 23 Connecting link 60 1 70060 03313 654839 24 Bolt plo...

Page 38: ...PARTS OM 0427SBC A 36 SNOWBLOWER CONT D FIG 000300_RAD1511016 ...

Page 39: ...k pin 1 4 round 2 70060 01929 1900006 15 Spring pin 3 8 X 2 lg black 2 77700 01961 1600024 16 Bolt carriage 3 8 NC x 3 4 lg PTD 2 70060 00788 0300007 17 Nut serrated flange 3 8 NC PTD 2 70060 00791 0900035 18 Nut hex 3 8 NC PTD 2 75599 31013 0900003 19 Bolt hex 3 8 NC x 1 1 2 gr 5 PTD 2 75599 01330 0100040 20 Knob 5 16 NC 1 70001 00517 661832 21 Nut knurled 5 16 NC X 0 690 lg 1 77700 01962 2401012...

Page 40: ...99 01320 0100038 7 Flat washer 5 16 3 8 hole PTD 2 75599 32012 1400003 8 Stover nut 3 8 PTD 2 75599 31933 1100003 9 Idler Lever 1 77700 01958 669401 10 Spring guide PTD 1 77700 01957 669396 11 Compression spring 1 77700 01923 664876 12 Flat washer 5 8 11 16 hole PTD 1 75599 32017 1400008 13 Nylon insert locknut 5 8 PTD 1 77700 01199 1000012 14 Shoulder screw 5 8 x 1 2 lg x 1 2 1 77700 01232 320002...

Page 41: ...04501 670412 3 Bolt serrated flange 1 2 NC x 1 1 4 gr 5 PTD 8 77700 02220 0200121 4 Nut serrated flange 1 2 NC PTD 8 70060 01992 0900046 5 Reduction box 1 77700 04509 4500162 6 Lockwasher 7 16 PTD 4 75599 33014 1200005 7 Bolt hex 7 16 NC x 1 gr 5 PTD 4 77700 01242 0100056 8 Support bracket left 1 77700 04502 670413 FIG 000500_RAD1511017 ...

Page 42: ...PARTS OM 0427SBC A 40 HYDRAULIC SYSTEM FIG 000600_RAD1511018 ...

Page 43: ...C x 1 lg PTD 1 75599 01120 0100004 9 Cylinder 2 x 4 rod 1 1 8 1 77700 01995 3900447 Seal kit 1 70060 02126 3900205 10 Hydraulic selector 1 70060 02677 3900303 Solenoid valve 1 77700 03949 3900482 11 Lockwasher 1 4 PTD 2 75599 33011 1200002 12 Bolt hex 1 4 NC X 1 1 2 gr 5 PTD 2 75599 01110 0100001 13 Rubber hose 3 8 x 28 lg 3 8NPT STM x 9 16JIC SWF 2 77700 01991 3700176 14 Elbow 90º 7 8ORB M x 3 8N...

Page 44: ...3 4 13 16 hole PTD 6 77700 00990 1400010 5 Nylon insert locknut 3 4 NC PTD 8 75599 31918 1000013 6 Upper Hitch 1 77700 05079 670748 7 Bolt hex 3 4 NC x 4 1 2 gr 5 PTD 2 77700 02222 0100125 8 Left hitch protector 1 77700 04279 670329 9 Right hitch protector 1 77700 04278 670328 10 Allen setscrew flat head 1 4 x 3 4 PTD 18 77700 00967 0700016 11 Stover lock nut 1 4 PTD 18 70060 02441 1100001 FIG 000...

Page 45: ...5 16 NC 1 70001 00517 661832 14 Flat washer 5 16 3 8 hole PTD 1 75599 32012 1400003 15 Compression spring 0 526 x 1 lg 1 77700 04353 2200038 16 Stover nut 5 16 NC PTD 1 70001 00794 1100002 17 Hose clamp 1 70060 02294 666583 18 Bolt hex 3 8 NC X 1 1 4 gr 5 PTD 1 75599 01325 0100039 19 Nylon insert lock nut 3 8 NC PTD 1 75599 31913 1000006 20 Driveline shield 1 77700 04370 670374 21 Yellow plastic i...

Page 46: ...ch box 1 70060 02669 667557 4 Switch 2 blades 1 70060 02679 4000061 5 Rubber cap for switch 1 70060 01700 658666 6 Switch box clamp 1 70060 02670 667558 7 Bolt hex 1 4 NC x 3 4 gr 5 PTD 2 75599 01115 0100003 8 Tap connector 1 70060 03482 656665 9 Tie wrap 8 lg x 4 8mm black 7 70060 02398 2100003 Fuse 5 AMP 1 77700 01268 4000060 Relay 12V plastic 1 77700 00951 4000028 FIG 000900_RAD1511021 ...

Page 47: ...CTION BOX 77700 04509 REF DESCRIPTION QTY PART CODE Reduction Box 1 77700 04509 4500162 1 Bearing kit 1 77700 02200 4500132 2 Gear kit 1 N A N A 3 Seal kit 1 77700 02202 4500134 4 Housing kit 1 77700 02203 4500135 FIG 0001000_RAD1511011 ...

Page 48: ...g 1 70060 03355 656654 8 Bearing 1 70060 04536 656647 9 Shaft 1 77700 01917 656651 10 Gear 1 77700 01914 656645 11 External retaining ring 1 77700 01915 656646 12 Bearing 2 77700 01911 656641 13 Spacer 1 77700 01913 656644 14 Internal retaining ring 2 70060 03347 656642 15 Seal kit 40 x 80 x 12 2 77700 01912 656643 16 Shaft 1 77700 01921 662212 17 Gear 1 77700 01918 656657 18 Spacer 1 70060 03796 ...

Page 49: ...ODE Gear Box assembly 1 77700 01615 662195 1 Seal kit 35 x 72 x 10 1 70060 03354 659845 2 Bearing 1 70060 03850 659844 3 Bearing 1 70060 04536 656647 4 Bearing 2 77700 01911 656641 5 Seal kit 40 x 80 x 12 2 77700 07061 4500170 6 Plug 1 77700 07060 4500169 FIG RAD1511013 OM0398SB 11 15 001300 et autres OM_ ...

Page 50: ... male part 1 77700 04340 4700267 2 Quick disconnect yoke ass y 1 70060 03431 660149 3 Universal joint journal cross 1 77700 00576 4700130 4 Yoke and male shaft 1 77700 04341 4700268 5 Repair kit 1 77700 04343 4700270 6 Outer shield plastic 1 77700 04342 4700269 FIG RAD1501015 OM0427SB 01 15 000600 et autres OM_ ...

Page 51: ...14 X 2 92 68 145 105 200 150 9 16 12NC 95 70 150 110 210 155 M14 X 1 5 99 73 155 115 215 160 9 16 18NF 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230 5 8 11NC 130 97 205 150 285 210 M16 X 1 5 155 115 240 180 335 245 5 8 18NF 150 110 230 170 325 240 M18 X 2 5 195 145 310 230 405 300 3 4 10NC 235 170 360 265 510 375 M18 X 1 5 220 165 350 260 485 355 3 4 16NF 260 190 405 295 570 420 M20 X 2 5...

Page 52: ...Printed in Canada ...