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Summary of Contents for Allied 7420
- Page 1 OperatOr and parts Manual Snowblower Model 7420, 8420 & 8420G 022012 FK331...
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Page 3: Table Of Contents
Table of Contents - 7420, 8420 & 8420G Snowblower Table of Contents Introduction ..........................4 Safety ............................5 • Safety ..........................5 • General Safety ........................6 • Start-up Safety .........................6 • Operation Safety ......................6 • Transport Safety .......................7 • Service and Maintenance Safety ..................7 • Storage Safety ........................7... -
Page 4: Introduction
PTO-driven Allied snowblowers attach to a tractor’s 3-point hitch. This snowblower is supplied with Category 2 pins with conversion bushings to Category 3 available. The 7420 and 8420 snowblowers have open gearboxes. The Y8420G has an oil bath gearbox. Adjustable cup type skid shoes are standard on all models. -
Page 5: Safety
Safety - 7420, 8420 & 8420G Snowblower Safety Safety Instructions Remember, YOU are the key to safety. Good safety practices not only protect you, but also the people around you. Make these practices a working part of your safety program. Be certain that everyone operating this equipment is familiar with the recommended operating and maintenance procedures and follows all the safety precautions. -
Page 6: General Safety
Safety - 7420, 8420 & 8420G Snowblower General Safety Instructions • Have a first-aid kit available for use and know how to use it. • Have a fire extinguisher available, stored in a highly visible location, and know how to use it. -
Page 7: Transport Safety
Safety - 7420, 8420 & 8420G Snowblower Transport Safety • Review Transport Safety instructions in tractor manual before moving. • Check with local authorities regarding transport on public roads. Obey all applicable laws and regulations. • Make sure the SMV (Slow Moving Vehicle) emblem and all the lights and reflectors that are required by the local highway and transport authorities are in place, are clean, and can be seen clearly by all overtaking and oncoming traffic. -
Page 8: Safety Signs
Safety - 7420, 8420 & 8420G Snowblower Safety Signs • The following illustration shows the approximate location and detail of safety signs. • Keep all safety signs clean and legible and replace any that are damaged or missing. • When original parts are replaced, any safety signs affixed to those parts should be replaced as well. -
Page 9: Assembly
Assembly - 7420, 8420 & 8420G Snowblower Assembly Instructions 740: Turn the bottom tube weldments (907213) as shown in drawing and slide them into the sleeve welded to the main body. 840 & 840G: Turn the bottom tubes (907250) as shown in drawing and slide them into the sleeve welded to the main body. - Page 10 Assembly - 7420, 8420 & 8420G Snowblower 6. Hand Crank (Option) - Fasten hand crank assembly (965803) using two 1/2" x 1-1/4" hex bolts, lock washers and hex nuts. - Thread cable (965927) through hole in hand crank to even lengths and wrap around the tube to each side of the hole four turns in opposite directions.
- Page 11 Operation - 7420, 8420 & 8420G Snowblower 8. PTO Shield: - All snowblowers are supplied with a PTO shield. Bolt the shield 965410 (965409) to the hinges on the top of the gearbox on both the 740 and 840 snowblowers using 1/4" x 1/2"...
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Page 12: Operation
Operation - 7420, 8420 & 8420G Snowblower Operation Instructions Do not operate the snowblower in the fully raised position. The 3-point hitch on some tractors raises high enough to cause the PTO shaft to bind. This can cause damage to the PTO shaft and/or to the hitch and pins. -
Page 13: Theory Of Operation
Bolt Torque - 7420, 8420 & 8420G Snowblower Always check to see that both ends of the PTO shaft are securely CAUTION attached as per instructions every time you are preparing to use the snowblower. 10. When replacing bearings or tightening a loose bearing collar, always tighten collar in the direction of shaft rotation using a center punch or a similar tool. -
Page 14: Maintenance
Maintenance - 7420, 8420 & 8420G Snowblower Maintenance Refilling 840G Gearbox with Oil • If the gearbox requires refilling with oil because of repairs to the gearbox, add oil to the level shown in the drawing. • Check the level regularly using the plug in the lid. - Page 15 Bolt Torque - 7420, 8420 & 8420G Snowblower Bolt Torque Checking Bolt Torque The tables shown below give correct torque values for various bolts and hex bolts. Tighten all bolts to the torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt torque chart as a guide.
- Page 16 Bolt Torque - 7420, 8420 & 8420G Snowblower Hydraulic Fittings Jam Nut or Straight SAE 37° (JIC) ORB Fitting Torque Swivel Nut Torque Dash Size Thread Size (lbs-ft) (NM) (lbs-ft) (NM) -4 (1/4) 7/16-20 16 - 14 20 - 22...
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Page 17: Parts Drawings
Parts - 7420, 8420 & 8420G Snowblower 7420 & 8420 Snowblower Drawings... - Page 18 Parts - 7420, 8420 & 8420G Snowblower 8420G Snowblower Drawings...
- Page 19 Parts - 7420, 8420 & 8420G Snowblower...
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Page 20: Snowblower Parts List
Parts - 7420, 8420 & 8420G Snowblower When Ordering Parts Always give your dealer the Model, Color and Serial Number of your machine to assist them in ordering and obtaining the correct parts. Use the exploded view and tabular listing of the area of interest to exactly identify the required part. - Page 21 Parts - 7420, 8420 & 8420G Snowblower Item Part Number Description 84498 1/4" Lock Nut (Pl) 86170 Hex Bolt 0.375 Unc x 1.0 900712 Pin Weldment 901939 Aug Assy 74" 901934 Aug Assy 84" 901940 Dr Shft Key 5/16" x 5/16" x 1-1/4"...
- Page 22 Parts - 7420, 8420 & 8420G Snowblower Item Part Number Description 966527 7/8" x 2-1/2" Hex Bolt (Pl) 967140 1" x 10Ga Narrow Rim Wash (Pl) 967164 Drive-In Grease Zerk 967260 1-1/2"Ø Brg Flg 967458 Adma PTO Safety Manual 968627 1-1/2"...
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Page 23: Snowblower Gearbox Drawing And Parts List
Parts - 7420, 8420 & 8420G Snowblower 8420G Snowblower Gearbox Drawing Item Part Number Description BU50506 Gearbox Complete BU50310 Gearbox Casting Only BU500089-3 Pipe Plug BU50457 Gearbox Cover BU500167-1 Relief Valve BU50458 Gearbox Gasket BU50508 Cross Shaft BU50502 Pinion Shaft BU50329 Bevel Gear - 1-1/2"... -
Page 24: Snowblower Pto Drawing
Parts - 7420, 8420 & 8420G Snowblower Snowblower PTO Drawing... -
Page 25: Pto Parts List
Parts - 7420, 8420 & 8420G Snowblower Item Part Number Description F842 Standard PTO Shaft Complete 936263 Tractor Half of PTO (Shear) 936264 Implement Half of PTO (Clamp Yoke) 936277 Shear Assembly 936199 Safety Slide Lock Repair Kit (Collar, Spring, Ret. Ring, 2-Pawls) 936249 Shear Assembly Repair Kit (3/8"... -
Page 26: Optional Bundles
Parts - 7420, 8420 & 8420G Snowblower Optional Bundles Item Part Number Description F844 Long PTO Shaft Complete (Optional) 936285 Tractor Half of PTO (Shear) 936280 Implement Half of PTO (Clamp Yoke) 936277 Shear Assembly 936199 Safety Slide Lock Repair Kit (Collar, Spring, Ret. -
Page 27: Cylinder Assembly Drawings And Parts List
Parts - 7420, 8420 & 8420G Snowblower 1.75 x 5 Cylinder Assembly Drawing (Optional) Item Part Number Description 24930M Cylinder Complete X3913 Seal Kit F9117 Spout Deflector Cylinder & Hose Kit 116984 Hose 3/8 x 120 c/w Fittings 24930M Cylinder 1.75 Dia x 5.0 9/16 Orb 960913 Clevis Pin 0.500 x 1.813 Pl... -
Page 28: Cylinder Assembly Drawing And Parts List
Parts - 7420, 8420 & 8420G Snowblower 3.5 x 8 Cylinder Assembly Drawing (Optional) Item Part Number Description 24803M Cylinder Complete X3906 Seal Kit F9116 Hydraulic Cylinder & Hose Kit for Spout Swivel 103753 Cylinder Clevis Pin 1 x 4" Rb & Fm... -
Page 29: Shipping Kit And Bundle Numbers
Parts - 7420, 8420 & 8420G Snowblower Shipping Kit and Bundle Numbers The following is a list of Kit Numbers for this product and the Bundle Numbers, Descriptions, and Quantities for each Kit. Quantity Bundle Number Description YC7420 - 74" Snowblower w/ Hydraulic Chute Control, 4-Blade Fan... -
Page 30: Warranty
Warranty - 7420, 8420 & 8420G Snowblower Allied by Farm King Limited Warranty This document limits your warranty rights. Base Limited Warranty Buhler Industries Inc. provides this warranty only to original retail purchasers of its product. Buhler Industries Inc. warrants to such purchasers that all Buhler Industries Inc. manufactured parts and components used and serviced as provided for in the Operator’s Manual shall be free... - Page 31 Warranty - 7420, 8420 & 8420G Snowblower Authorized Dealer and Labor Costs Repairs eligible for labor under this limited warranty must be made by Buhler Industries Inc. or an authorized Farm King dealer. Buhler Industries Inc. retains the exclusive discretion to determine whether it will pay labor costs for warranty repairs or replacements, and the amount of such costs that it will pay and the time in which the repairs will be made.
- Page 32 Warranty - 7420, 8420 & 8420G Snowblower (Note that some provinces or states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusion may not apply to you.) This warranty gives you specific legal rights and you may also have other rights, which vary from province to province or state to state.
- Page 34 www.farm-king.com 1330 43rd Street NW Fargo, ND USA 58102 Ph.: 701.282.7014 | Fax: 701.282.5865 Toll Free: 888.524.1004 E-mail: info@buhler.com www.farm-king.com Equipment shown is subject to change without notice. ©2010 Buhler Trading Inc. Printed in USA. TSX:BUI a division of Buhler Industries Inc.
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