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Hydraulic Snow Blower OM

Lubrication (Cont’d)

Grease Points Location (Cont’d)

Location:

Spout band (1, 2).

Interval:

Every 8 hours of operation.

Location:

Deflector cylinder (3, 4).

Interval:

Every 8 hours of operation.

Maintenance

Auger Chain Lubrication

IMPORTANT

: The chain cover must be removed to

lubricate the auger chain. See “Removing
Chain Cover” on page 19 for
instructions before attempting to remove
the cover.

Oil the entire chain using a heavy-duty lubricant.

Location:

Auger chain (1).

Interval:

Every 4 hours of operation.

After lubrication, return the chain cover to its operating
position.

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Содержание 721D1HH

Страница 1: ...er Date of Purchase Hydraulic Snow Blower High Flow Series 721D1HH 781D1HH 721D2HH 781D2HH 841D2HH 781D3HH 841D3HH 721EMHH 781EMHH 721ESHH Owner s Manual and Parts Book Originating w Serial Number 88 101 N142336 Rev A 08 17 18 ...

Страница 2: ......

Страница 3: ...s warranty shall not apply to any machine or attachment which shall have been repaired or altered outside the LOFTNESS factory or authorized LOFTNESS dealership or in any way so as in LOFTNESS judgment to affect its stability or reliability nor which has been subject to misuse negligence or accident nor to any machine or attachment which shall not have been operated in accordance with LOFTNESS pri...

Страница 4: ......

Страница 5: ...ting Safety 6 Maintenance Safety 8 Hydraulic Safety 8 California Proposition 65 Warning 9 Safety Decal Locations 10 Hydraulic Snow Blower Identification 12 Operating Instructions Operation Safety 13 Initial Use Inspection and Adjustments 13 Chain Inspection 13 Skid Shoe Adjustment 13 Installing the Snow Blower to the Loader 13 Blowing Snow 14 Freeing Plugged Snow 15 Maintenance General Maintenance...

Страница 6: ... 201174 26 Cutting Edge and Skid Shoes 28 Spout with Deflector 9 5 N10525 and 11 N10599 29 Auger Drive 30 Hydraulics and Electrical 32 Blower Motor and Valve 6 2 N52175 Valve 9 6 N124723 Valve 11 9 N124725 Valve 4 9 201191 Valve 8 0 201193 34 Actuator Valve N52173 35 Spout Hydraulic Deflector Kit N67193 36 Hydraulic Spout Rotator Kit N67175 37 Machine Decals and Signs 38 Appendix Specifications 41...

Страница 7: ... machine type one number or letter motor system one letter rotator system and one letter deflector system An example for a snow blower of this type would be as shown below SIZE 72 72 Cut 78 78 Cut 84 84 Cut AUGER 1 SINGLE TYPE E STANDARD FLOW D HIGH FLOW MOTOR SYSTEM S 15 16 GPM M 17 20 GPM 1 21 25 GPM 2 26 32 GPM 3 33 40 GPM ROTATOR H HYDRAULIC DEFLECTOR H HYDRAULIC 781ESHH ...

Страница 8: ...2 Hydraulic Snow Blower OM ...

Страница 9: ...serviced at regular intervals thereafter in accordance with procedures outlined in this manual Operate and maintain this snow blower in a safe manner and in accordance with all applicable local state and federal codes regulations and or laws and in compliance with on product labeling and these instructions Continuous improvement and advancement of Loftness products may result in changes to your eq...

Страница 10: ...nted adjustable skid shoes for accurate engaging 28 inch cutting height E Series 32 inch cutting height D Series 72 78 and 84 inch widths 270 degrees of spout movement 9 5 inch diameter spout E Series 11 5 inch diameter spout D Series 20 inch diameter discharge fan with five blades E Series 24 inch diameter discharge fan with five blades D Series Open spoke auger design 13 inch diameter auger E Se...

Страница 11: ...act Loftness for safety decal replacement Loftness cannot anticipate every possible circumstance that may involve a potential hazard The warnings in this owner s manual are not all inclusive Owner s Responsibility Duetothepotentialdangerofflyingdebris itistheowner s responsibility and is ABSOLUTELY MANDATORY that IMPACT RESISTANT SHIELDING be installed on the machine to protect the operator It is ...

Страница 12: ...ential safety hazard to eyes from hydraulic leaks and or flying debris use of protective eyewear is absolutely mandatory for operator and others in the work area Before using a snow blower on a new job site check the rules and regulations at the location The rules may include an employer s work safety requirements Do not wear loose hanging clothes neckties or jewelry around rotating parts Long hai...

Страница 13: ...fted position Work only on the surface that the loader is standing on Do not operate the snow blower above the rated rpm Always operate snow blower level with the ground front to rear Safety Instructions Always remove snow by traveling in an up and down direction on slopes To avoid loss of control and to prevent overturn never drive diagonally across the slope Reduce speed when turning Never opera...

Страница 14: ...lace or repair anything that could cause a potential hazard Do not replace components or parts with other than factory recommended service parts To do so may decrease the effectiveness of the machine and or void the warranty It is the operator s responsibility to be aware of machine and attachment operation and work area hazards at all times Operators are responsible to know the location and funct...

Страница 15: ... can expose you to Mineral Oil which is known to the State of California to cause cancer For more information go to www p65warnings ca gov A decal with this warning statement is adhered to the machine If the decal should become worn or missing replace immediately Safety Instructions ...

Страница 16: ...any worn torn hard to read or missing safety decals on your machine NOTE This section shows where safety related decals are applied on the machine For all machine decals see Machine Decals and Signs on page 38 See the following page for detailed images of the safety decals called out above ...

Страница 17: ...11 Hydraulic Snow Blower OM Safety Instructions 4 Safety Decal Locations Cont d 1 3 2 Part No 4256 Part No 4190 Part No 4191 Part No N68716 6 Part No 203264 5 Part No 4257 ...

Страница 18: ...12 Hydraulic Snow Blower OM Safety Instructions Hydraulic Snow Blower Identification ...

Страница 19: ...ing Skid Shoes on page 21 for adjustment instructions Installing the Snow Blower to the Loader Your skid steer may be equipped with a manual coupler or optional powered quick coupler IMPORTANT For manual coupling fully raise the attachment locking levers on the loader mounting plate before attempting to connect the blower to the skid steer Tilt the loader mounting plate ahead Drive forward with th...

Страница 20: ... not included with the snow blower may be required to couple the snow blower s harness to the skid loader s connector Blowing Snow A definite pattern of operation is required to thoroughly clean the snow area The patterns shown in this section should be used to avoid throwing snow in unwanted places as well as eliminating a second removal of snow The drawing above illustrates the removal of snow w...

Страница 21: ...ea Best operating speeds of fan depend on snow conditions Wet sticky snow requires more power to blow The snow blower works better in this type of snow if it is kept working at its full capacity IMPORTANT DO NOT use the snow blower as a bulldozer to push snow let the blower work its way through the snow IMPORTANT DO NOT raise and lower blower under heavy loads to gain traction Freeing Plugged Snow...

Страница 22: ...16 Hydraulic Snow Blower OM ...

Страница 23: ...E C K C L E A N C H A N G E G R E A S E A D J U S T O I L Every 4 Auger Chain X Every 8 Machine X Loose Bolts X X Hoses and Wiring X Oil Leaks X Spout Band X Deflector Cylinder X Auger and Fan X Every 25 Chain Tension X Chain Alignment X Auger Bearings X Hydraulic Motor Bolts X Safety Labels X Break In Schedule Inspect and service after one 1 hour of operation all bolts set screws on bearings spro...

Страница 24: ...urs of operation Maintenance Auger Chain Lubrication IMPORTANT The chain cover must be removed to lubricate the auger chain See Removing Chain Cover on page 19 for instructions before attempting to remove the cover Oil the entire chain using a heavy duty lubricant Location Auger chain 1 Interval Every 4 hours of operation After lubrication return the chain cover to its operating position ...

Страница 25: ...ult in serious injury or death Remove chain cover See Removing Chain Cover above for instructions IMPORTANT The chain must be properly tensioned after one hour of operation and every 25 hours thereafter There should be 1 in deflection in the chain 1 when pressure is applied at the midpoint To adjust the chain tension loosen the two nuts 1 securing the motor to the frame Loosen the jam nut 2 Turn t...

Страница 26: ...ive sprocket Slide drive sprocket 2 along motor shaft as needed until chain aligns with the front auger sprocket but do not adjust sprocket more than 1 8 in in either direction If more adjustment is needed go to the next step Tighten set screws If more adjustment is needed loosen the two set screws 1 in the bearing on each end of the auger Then slide the auger to bring the two sprockets into align...

Страница 27: ... repairs and general upkeep to insure it will be ready for future use WARNING Before servicing or adjusting the snow blower or removing material from it be sure to follow the Mandatory Shut down Procedure instructed on page 6 With engine stopped ignition key removed and hydraulic controls disengaged clean the snow blower especially in areas of drive chain fan spout and auger where it could become ...

Страница 28: ...come compacted on spout rotator gear Remove as required and clean after each use to avoid freezing Gear alignment Spout rotator gear and drive sprocket have become misaligned Hydraulic hose connections Check to make sure they are connected into the correct outlet ports on the spool valve Electrical connections Check to make sure they are properly connected Check to make sure there is power to the ...

Страница 29: ...23 Hydraulic Snow Blower OM PARTS IDENTIFICATION Parts Identification ...

Страница 30: ...24 Hydraulic Snow Blower OM Snow Blower Frame and Fan Drive Parts Identification For parts breakdown of item 2 Motor and Valve see page 34 For parts breakdown and sizes of item 11 Auger see page 26 ...

Страница 31: ...ls 721EMHH 721ESHH 781EMHH 8260 BEARING 1 3 8 BEARING ONLY For Models 721D1HH 721D2HH 781D1HH 781D2HH 781D3HH 841D2HH 841D3HH 6 6 4228 WASHER 5 16 LOCK For Models 721EMHH 721ESHH 781EMHH 4065 WASHER 3 8 LOCK For Models 721D1HH 721D2HH 781D1HH 781D2HH 781D3HH 841D2HH 841D3HH 7 6 4233 BOLT 1 2 X 1 GR 5 FN TH For Models 721EMHH 721ESHH 781EMHH 4237 NUT 5 16 STANDARD For Models 721D1HH 721D2HH 781D1HH...

Страница 32: ...26 Hydraulic Snow Blower OM Auger with Sprocket 72 x 13 201104 78 x 13 201127 78 x 16 201143 84 x 16 201150 72 x 16 201174 Parts Identification ...

Страница 33: ... 1 201105 AUGER 72 BLOWER 13 2 1 201126 AUGER 78 BLOWER 13 3 1 201142 AUGER 78 BLOWER 16 4 1 201149 AUGER 84 BLOWER 16 5 1 201173 AUGER 72 BLOWER 16 6 1 7189 02 KEY 5 16 X 1 1 4 7 1 201175 SPROCKET 60B24 1 3 8 BORE 8 1 7187 02 KEY 1 4 X 1 1 4 9 1 201114 SPROCKET 50B24 1 BORE Quantities shown below are for one auger assembly Parts Identification ...

Страница 34: ...N CUTTING For 72 Models N11485 EDGE 78 BOLT ON CUTTING For 78 Models 7229 EDGE 84 BOLT ON 3 8 X 3 For 84 Models 2 16 4038 BOLT CARRIAGE 1 2 X 1 1 4 72 17 78 18 84 3 16 4068 WASHER 1 2 SAE FLAT 72 17 78 18 84 4 16 4054 NUT LOCK 1 2 TOP 72 17 78 18 84 5 2 201094 SHOE SNBLW SIDE SKID Parts Identification ...

Страница 35: ... 2 FORMED BLOWER 2 1 N10597 SPOUT 11 FORMED BLOWER 3 1 N10523 DEFLECTOR 9 1 2 11 SPOUT 4 1 N10518 ROD 9 1 2 11 SPOUT DEFLECTOR 5 2 4375 PIN ROLL 3 16 X 1 6 2 4104 GREASEZERK DRIVE IN 7 6 4052 NUT LOCK 3 8 9 5 8 11 8 6 4066 WASHER STEP 1 2 ID 9 5 8 11 9 6 4037 BOLT SHLD 1 2 X 1 2 9 5 8 11 Quantities shown below are for one spout assembly ...

Страница 36: ...30 Hydraulic Snow Blower OM Parts Identification Auger Drive ...

Страница 37: ... 781D2HH 781D3HH 841D2HH 841D3HH 6 1 201113 SPROCKET 50B24 1 1 4 BORE For Models 721EMHH 721ESHH 781EMHH 201216 SPROCKET 60B24 1 1 4 BORE For Models 721D1HH 721D2HH 781D1HH 781D2HH 781D3HH 841D2HH 841D3HH 7 1 201112 PLATE SNBLW MOTOR ADJ 8 2 4477 BOLT CARRIAGE 1 2 X 1 3 4 9 2 N29075 NUT LOCK 1 2 SERRATED FLANGE 10 1 4017 BOLT 1 2 X 3 3 4 GRADE 5 11 1 201095 MOTOR 18 7 CID SIDE PORT For Models 721E...

Страница 38: ...tion Hydraulics and Electrical For parts breakdown of item 3 Spout Deflector Kit N67193 see page 36 For parts breakdown of item 6 Rotator Hydraulic Spout Kit N67175 see page 37 For parts breakdown of item 10 Motor with Actuator Valve see page 34 ...

Страница 39: ... VALVE 6 2 For Models 721EMHH 781EMHH N124723 ASM BLOWER MOTOR VALVE 9 6 For Models 721D2HH 781D2HH 841D2HH N124725 ASM BLOWER MOTOR VALVE 11 9 For Models 781D3HH 841D3HH 201191 ASM BLOWER MOTOR VALVE 4 9 For Model 721ESHH 201193 ASM BLOWER MOTOR VALVE 8 0 For Models 781D1HH 721D1HH 11 2 N29624 ELBOW 45 DEG 12MJC 10MOR 12 2 201116 HOSE 3 4 X 29 12FJIC 12FJIC 13 1 201095 MOTOR 18 7 CID SIDE PORT Fo...

Страница 40: ...CID 17 20 GPM 2 1 201194 MOTOR 9 6 CID 26 32 GPM 3 1 201196 MOTOR 11 9 CID 33 40 GPM 4 1 201190 MOTOR 4 9 CID 15 16 GPM 5 1 201192 MOTOR 8 0 CID 21 25 GPM 6 1 N52173 VALVE SNOW ACTUATORS 7 1 201189 TUBE SNBLW 4FJIC 4FJIC 8 2 N142378 ELBOW 90 DEG 4MJIC 4MORB Quantities shown below are for one blower motor and actuator valve assembly For parts breakdown of item 6 Actuator Valve N52173 see page 35 ...

Страница 41: ...n Actuator Valve N52173 QTY PART DESCRIPTION 1 4 N154952 COIL DEUTSCH 12V 8 2 2 N52127 SPOOL TANDEM CENTER 8 4W3P 3 1 N52141 BLOCK 2K CONTROL 4 1 N52147 SPOOL PILOT 16 10 PSI 5 1 N52169 POPPET RELIEF 8 1000 PSI 6 1 N52155 SPOOL RELIEF PO 10 1600 PSI ...

Страница 42: ...N67193 QTY PART DESCRIPTION 1 1 4088 PIN DEFLECTOR 1 2 X 3 TOP 2 1 9675 BUSHING TOP HYDRAULIC DEFLECTOR 3 1 8287 CYLINDER HYDRAULIC 2 X 6 4 2 N67210 ELBOW 04MJIC 08MOR 5 2 4089 CLIP HAIRPIN 093 X 1 5 8 6 1 9676 BUSHING BOTTOM HYDRAULIC DEFLECTOR 7 1 4242 PIN DEFLECTOR 1 2 X 4 BTM ...

Страница 43: ...7175 QTY PART DESCRIPTION 1 1 9553 SPROCKET SPOUT ROTATOR 2 1 7187 01 KEY 1 4 WOODRUFF 3 1 4200 WASHER 2 750 OD X 1 750 ID X 1345 4 4 4195 BOLT 3 8 X 1 GRADE 5 5 4 4065 WASHER 3 8 LOCK 6 4 4064 WASHER FLAT 3 8 7 1 N25000 MOTOR PARKER 4 0 CU IN 8 2 N76804 ELBOW 90 DEG 04MJIC 10MOR ...

Страница 44: ...wn in the Safety Instructions Section along with their location on the machine See Safety Decal Locations on page 10 Check and replace any worn torn hard to read or missing decals on your machine Part No 4256 Part No 4190 Part No 4191 Parts Identification Part No 4257 Part No N68716 Part No 203264 ...

Страница 45: ...39 Hydraulic Snow Blower OM Parts Identification Machine Decals and Signs Cont d Part No N13721 Part No 4138 Part No 4136 Part No N28010 Part No N13517 Part No N26974 Part No N33103 Part No N31306 ...

Страница 46: ...40 Hydraulic Snow Blower OM ...

Страница 47: ...g 781D2HH 911 6 lbs 413 5 kg 841D2HH 931 5 lbs 422 5 kg 781D3HH 914 6 lbs 414 9 kg 841D3HH 934 5 lbs 423 9 kg E Series 721EMHH 726 1 lbs 329 4 kg 781EMHH 756 9 lbs 343 3 kg 721ESHH 721 8 lbs 327 4 kg Auger Diameter 13 in 33 02 cm Dia E Series 16 in 40 6 cm Dia D Series Discharge Fan Diameter 20 in 50 8 cm Dia Five Blades E Series 24 in 60 9 cm Dia Five Blades D Series Blower Motor 15 to 20 GPM E S...

Страница 48: ... 25 in 191 13 cm 75 125 in 190 81 cm 81 25 in 206 37 cm 81 125 in 206 05 cm 87 25 in 221 61 cm Depth B 42 868 in 108 88 cm 41 774 in 106 10 cm 42 868 in 108 88 cm 41 774 in 106 10 cm 42 868 in 108 88 cm Cutting Height C 32 35 in 82 17 cm 28 44 in 72 23 cm 32 35 in 82 17 cm 28 44 in 72 23 cm 32 35 in 82 17 cm Overall Height D 68 09 in 172 95 cm 59 41 in 150 90 cm 68 09 in 172 95 cm 59 41 in 150 90 ...

Страница 49: ...43 Hydraulic Snow Blower OM Appendix Torque Specifications Inches Hardware and Lock Nuts ...

Страница 50: ...44 Hydraulic Snow Blower OM Torque Specifications Cont d Metric Hardware and Lock Nuts Appendix ...

Страница 51: ......

Страница 52: ...www loftness com Loftness Specialized Equipment Inc 650 So Main Street PO Box 337 Hector MN 55342 Tel 320 848 6266 Fax 320 848 6269 Toll Free 1 800 828 7624 Printed in USA Loftness 2018 ...

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