Farm King 500 Product manual

Snowblower
Models 500 & 600
OperatOr and parts Manual
072012 FK311

3
Table of Contents - 500 & 600 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
• Safety Signs .....................................................................................................................8
• Safety Sign Installation ...................................................................................................8
Assembly......................................................................................................................................9
• Assembly Instructions.....................................................................................................9
Operation ...................................................................................................................................11
• Theory of Operation ......................................................................................................12
Bolt Torque .................................................................................................................................13
• Checking BoltTorque .....................................................................................................13
Parts Drawings...........................................................................................................................14
• Snowblower Drawings..................................................................................................14
• Snowblower Parts List...................................................................................................16
• Snowblower PTO Drawing............................................................................................20
• Snowblower PTO Parts List...........................................................................................21
• 1.75 x 5 Cylinder Drawing..............................................................................................22
• 2.0 x 8 Cylinder Drawing ...............................................................................................23
Shipping Kit and Bundle Numbers ..........................................................................................24
Warranty .....................................................................................................................................26
Manufacturer’s statement: for technical reasons Buhler Industries Inc. reserves the right to modify
machinery design and specifications provided herein without any preliminary notice.
Information provided herein is of descriptive nature. Performance quality may depend on soil fertility,
applied agricultural techniques, weather conditions and other factors.

4
Introduction
Farm King has years of snowblower manufacturing expertise and thousands of acreages, farms
and cities depend on Farm King snowblowers.
PTO-driven Farm King snowblowers will mount to a tractor with a Category 1 3-point hitch or
Category 1 Quick Hitch.You can attach your snowblower to the Quick Hitch from your tractor seat
with ease, speed and safety.These models have open gearboxes. Adjustable cup type skid shoes
are standard on all models.
Shear bolt protection is provided at the sprocket to the main auger, and is easily accessed by
removing nuts and cover at the back of the housing.
A hitch system, which is quick-hitch compatible, is standard on all models. A length-adjustable
hitch is standard on all models.
Also available is an optional Hydraulic Spout Control.There is a shear bolt on the auger and on the
PTO shaft to protect the machine from damage if a large object is picked up. Any smaller objects
in the snow will be thrown with it and could cause serious injury. Do not allow anyone to stand
behind the tractor or in the area of the discharged snow.
Keep this manual handy for frequent reference. All new operators or owners must review the
manual before using the equipment and at least annually thereafter. Contact your Farm King
Dealer if you need assistance, information, or additional copies of the manual. Visit our website
at www.buhlerindustries.com for a complete list of dealers in your area.
The directions left, right, front and rear, as mentioned throughout this manual, are as seen facing
in the direction of travel of the implement.
Introduction - 500 & 600 Snowblower

5
Safety - 500 & 600 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. Most accidents can be prevented. Do not risk
injury or death by ignoring good safety practices.
The alert symbol is used throughout this manual. It indicates attention is required and identifies
hazards. Follow the recommended precautions.
The safety alert symbol means…
ATTENTION! BECOME ALERT!YOUR SAFETY IS INVOLVED!
CAUTION The caution symbol indicates a potentially hazardous situation
that, if not avoided, may result in minor or moderate injury. It
may also be used to alert against unsafe practices.
WARNING
The Warning Symbol indicates a potentially hazardous situation
that, if not avoided, could result in death or serious injury, and
includes hazards that are exposed when guards are removed. It
may also be used to alert against unsafe practices.
DANGER
The Danger Symbol indicates an imminently hazardous situation
that, if not avoided will result in death or serious injury. This
signal word is to be limited to the most extreme situations,
typically for machine components that, for functional purposes,
cannot be guarded.

6
Safety - 500 & 600 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.
• Wear appropriate protective gear.This list may include but is not limited to:
- hard hat
- protective shoes with slip resistant soles
- protective glasses or goggles
- heavy gloves
- wet weather gear
- hearing protection
- respirator or filter mask
• Read and understand the Operator’s Manual and all safety signs before operating, servicing,
adjusting, repairing, or unplugging the equipment.
• Do not attempt any unauthorized modifications to your Farm King product as this could affect
function or safety, and could affect the life of the equipment.
• Never start or operate the snowblower except from the operator’s station on the power unit.
• Inspect and clean the working area before operating.
• Keep hands, feet, clothing, and hair away from moving parts.
• Ensure bystanders are clear of the area before operating.
Start-Up Safety
• Do not let inexperienced operators or children run this equipment.
• Place all tractor and machine controls in neutral before starting.
• Operate only with ROPS and seatbelt equipped tractors.
• Do not operate inside a building unless there is adequate ventilation.
• Ensure all shields are in place and in good condition before operating.
• Stay clear of PTO shaft and machine when engaging PTO.
Operation Safety
• Do not permit riders.
• Do not wear loose fitting clothing during operation.
• Do not allow anyone other than the operator close to the Auger when in operation.
• Stay clear of snowblower augers.
• Stay clear of snowblower discharge chute. Rocks or debris can be picked up and thrown.
• Never operate over 540 PTO rpm speed.

7
Safety - 500 & 600 Snowblower
Transport Safety
• ReviewTransport 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.
• Never have the equipment in operation during transport.
• Always travel at a safe speed.
Service and Maintenance Safety
• Stop engine, set brake, remove ignition key, and wait for all moving parts to stop before
servicing, adjusting, repairing, or unplugging.
• Support the equipment with blocks or safety stands before working beneath it.
• Follow good shop practices including:
- keep service area clean and dry
- be sure electrical outlets and tools are properly grounded
- use adequate light for the job.
• Use only tools, jacks, and hoists of sufficient capacity for the job.
• Replace and secure all shields removed during servicing before operating.
• Use heavy leather gloves to handle sharp objects.
• Check hydraulics regularly for leaks. Use cardboard to look for leaks, and use hand and eye
protection.
• Relieve pressure on hydraulic system before repairing or adjusting.
Storage Safety
• Store the unit in an area away from human activity.
• Do not permit children to play on or around the stored machine.
• Support the frame on stands and blocks to provide a secure base.
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. Replacement safety signs are available from your local dealer.

8
Safety - 500 & 600 Snowblower
Installation
• To install safety signs, ensure the installation area is clean and dry. Decide on the exact
position before you remove the backing paper. Remove the smallest portion of the split
backing paper and align over the specified area. Carefully press in place.
• Slowly peel back the remaining paper and smooth the remaining portion in place. Small air
pockets can be pierced with a pin and smoothed out.
• Replace safety signs immediately should they become damaged, torn or illegible. Obtain
replacements from your authorized dealer using the part numbers shown.
2
1
3
SERIAL
NUMBER
3
12
3

9
Assembly - 500 & 600 Snowblower
Assembly Instructions
1. Mount the discharge spout (815580) using the spout spacers and spout clamps (815585 &
815586). Bolt the spout ring on snowblower. Lubricate the spout ring and clamp. NOTE: A
hydraulic cylinder and hose kit to control the spout deflector is available as an option.
2. Hitch Assembly: With right and left hitch tubes (907127 & 907128) turned as shown in drawing,
slide them into the sleeve welded to the main body.These tubes are adjustable to four different
positions.The correct position for each individual tractor will be determined when mounting
the snowblower on the tractor.These tubes are connected to the snowblower with a 3/4" x 3
1/4" pin (965624) and a hair pin clip (12779). Bolt the left (815218) and the right (815219) hitch
arms to the outside of the clevises on the hitch tubes using the lift pins (965809). NOTE: Pins
should be turned to the outside. Do not tighten any hardware until assembly is complete.
Join the top of the hitch arms by bolting a 1" O.D. x 2-1/4" spacer (906770) between the top
plates using a 3/4" x 4" bolt and lock nut through the lower outside holes. Bolt the hitch top bar
(907138) between the same plates using the same bolt through the welded tube on the bar.
Use the inside holes on the top plates for the top bar.The other end of the hitch top bar bolts
to the top of the blower fan housing with a 1/2" x 1-3/4" hex bolt, lock washer and hex nut. Use
the same hole position as the hitch tubes.Tighten all hardware.
A Category 1 top link pin (965807) is fitted in the top holes of the hitch arm plates.This pin is
used for standard three-point hitch only.The bushing in the lower holes is used for the Quick
Hitch.
3. Hand Crank Assembly: (Standard)
- Bolt the crank mounting bracket (965634) to the top of the hitch using 3/8" x 1-1/4" hex
bolts, lock washers and hex nuts.
- Insert the crank handle (906667) through the mount and through the bracket welded to
the main housing. Lock the crank in place using a washer and roll pin on each side of the
bracket.
- Thread the cable (965616) through the hole in the crank tube to even lengths and wrap
around the tube to each side of the hole four turns in opposite directions.
- With the spout turned forward, fasten the cable to the bracket welded to the bottom of the
spout using a 1/4" cable clamp (961658).
4. Hydraulic Control Assembly: (Option)
- Bolt the hydraulic swivel assembly (965626) to the back of the fan housing on the left side
using 1/2" x 1-1/4" hex bolts, lock washers and hex nuts.
- Bolt the cylinder mounting bracket (965628) to the back of the fan housing on the right side
using the same size hex bolts.
- Turn the spout forward and the center of the swivel arm in line with the spout center. With
the spout and swivel arm in this position, wrap the cable (965627) around the spout and
clamp to both ends of the swivel arm and to the bracket welded to the bottom of the spout
using 3/16" cable clamps (965806).
- Use a standard 8" stroke cylinder (20-1/4" min., 28-1/4" max. pin centers).

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5. Mounting Snowblower onTractor:
- Mount the snowblower on a tractor with a Category 1 hitch.
- Using tape or a bright colored marking pen, mark on the outer shield the position where
the shaft is completely pushed together and the position where you have a 4" overlap.
Watch these marks when moving the blower through all possible operating angles to see
that the PTO shaft stays within this range.
- With the tractor engine shut off, attach the PTO shaft.The tractor end has a standard
6-spline end with a spring loaded locking collar.The snowblower end has a clamp-style
yoke with a 1/4" key way. Slide the yoke onto the gearbox shaft with the 1/4" key supplied.
Lock the yoke in place with the 1/2" x 3" hex bolt and lock nut fitted through the groove
in the gearbox shaft. After tightening the bolt, insert and tighten the 3/8" socket set screw
supplied.
CAUTION Always check to see that both ends of the PTO shaft are securely
attached every time the snowblower is used.This should always
be done with the tractor engine off.
- Check that the PTO shaft does not bottom out or separate with the snowblower in the
extreme high and low positions. Check to see which of the four different hitch positions
will allow you to keep about a 4" minimum overlap on the PTO shields without bottoming
out.This position varies between different tractor models because of the different lengths
of the three-point arms. If the PTO shaft is still too long with the hitch fully extended, the
PTO shaft will have to be cut shorter. Check for free movement of all parts in various raised
positions, particularly the PTO shaft.
6. PTO Shield:
- All snowblowers manufactured for the 1990 production and up are supplied with a PTO
shield.The PTO shield (965643) bolts to the gearbox assembly using 1/4" x 3/4" hex bolts.
Hook one end of the spring (960135) in the hole in the back edge of the PTO shield and the
other end of the spring in the hole punched in the edge of the gearbox assembly.
CAUTION Do not run the snowblower without the PTO shield in place.
Assembly - 500 & 600 Snowblower

11
Operation - 500 & 600 Snowblower
Operation Instructions
1. 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. NOTE: PTO shaft angle should not exceed 20° for optimum
performance and life. Damage may occur to PTO and/or snowblower if angle becomes more
extreme.
2. Depth of cut can be partially controlled by tilting the blower forward or backward. Adjust the
top link of the tractor hitch so the snowblower is just slightly tilted back when resting on the
ground.
ALERT Excessive backward tilt may cause the “U” joints to flutter
resulting in PTO shear bolt failure.
3. Adjust the lower link sway chains or blocks on the tractor to restrict side movement of the
snowblower when operating.
4. Run the snowblower at low rpm to check operation before blowing snow.
5. The snowblower has two shear bolts to protect the tractor and snowblower in case a large
object enters the snowblower. PTO shear bolts - #500 – one 3/8" x 1" (gr.8), #600 - two 5/16" x 1"
(gr. 8), auger shear bolt – 1/4" x 1" (gr.2). Shear bolts should be fastened with a lock nut or two
jam nuts.These bolts must be kept tight to prevent wear of the bolt and bolt holes.
6. Never run PTO shaft over 600 rpm.
7. ChainTension: Slack on the lower side of the chain should be 3/8" to 1/2"
8. Lubrication:
- The spout clamps and rings should be periodically lubricated with gun grease.
- PTO shaft universal joints and square shaft slide should be greased daily.
- PTO shear yoke should be greased before using the snowblower for the first time.
- Regularly oiling the chain will significantly increase the life of the chain.
- Gearbox is open type and need not be greased or lubricated.
- Hydraulic spout option – grease the swivel arm.
9. Periodically check all bolts for tightness.The bolt holding on the fan and the bearing bolts are
of particular importance.
DANGER Always stop snowblower for servicing or unplugging.The PTO
should be disengaged before dismounting from the tractor.

12
Operation - 500 & 600 Snowblower
CAUTION Always check to see that both ends of the PTO shaft are securely
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.
11. Shear Sprocket:The shear sprocket (965826) should be checked at the beginning of every
season to make sure it will spin freely. With time the sprocket plate could corrode and seize
which will not allow the shear bolt to break if something jams in the snowblower auger. Clean
to loosen if necessary.
Theory of Operation

13
BoltTorque - 500 & 600 Snowblower
BoltTorque
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. Replace hardware with the same strength bolt.
Bolt Torque*
Bolt Diameter Grade 2 Bolts Grade 5 Bolts Grade 8 Bolts
(inches) SAE 2 SAE 5 SAE 8
“A” (lb-ft) (N.m) (lb-ft) (N.m) (lb-ft) (N.m)
0.25 (1/4) 6 8 9 12 12 17
0.313 (5/16) 10 13 19 25 27 36
0.375 (3/8) 20 27 33 45 45 63
0.438 (7/16) 30 42 53 72 75 100
0.5 (1/2) 45 61 80 110 115 155
0.563 (9/16) 70 95 115 155 165 220
0.625 (5/8) 95 128 160 215 220 305
.75 (3/4) 165 225 290 390 400 540
0.875 (7/8) 170 230 420 570 650 880
1 225 345 630 850 970 1320
Torque figures indicated above are valid for non-greased or non-oiled threads and heads unless otherwise
specified.Therefore, do not grease or oil bolts or hex bolts unless otherwise specified in this manual. When
using locking elements, increase torque values by 5%.
*Torque value for bolts and hex bolts are identified by their head markings.

14
Parts - 500 & 600 Snowblower
Snowblower Drawings

15
Parts - 500 & 600 Snowblower
89
87
88
78
91
80
90
80
78
91

16
Parts - 500 & 600 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.
Item Part Number Description
1 901331 Fan Key 1/4" x 1/4" x 3-1/2"
2 81598 7/16" x 1-1/4" Hex Bolt (Pl)
3 981616 7/16" Flat Washer (Pl)
4 965505 Auger Assembly (500)
965610 Auger Assembly (600)
5 961637 Bearing Flange 62Ms
6 81592 3/8" Hex Nut (Pl)
7 84335 Bolt Hex 5/8 x 2-1/2 UNC
8 81676 5/8" Hex Nut (Pl)
9 81678 5/8" Flat Washer Standard (Pl)
10 965632 Idler Spacer 1/16" ID x 27/32" OD x 1/2"
11 965968 14Ga x 7-1/2" x 8" Idler Shld
12 81569 5/16" Lock Washer Pl
13 81568 5/16" Hex Nut Pl
14 965512 Drive Shaft Guard 16Ga (500)
965644 Drive Shaft Guard 16Ga (600)
15 902477 Skid Plate Weldt
16 901435 1/2" x 2-1/2" Clevis Pin (Pl)
17 961012 #16 Hair Pin Clip
18 909277 Manual Holder 3-1/2" x 12"
19 965844 Idler Sprkt 15T #50
20 906667 Crank Handle (Opt) 12Ga x 1"Ø x 43-1/2"
21 965634 Crank Mounting Bracket Weldment
22 907127 HitchTube Weldment - R
23 907128 HitchTube Weldment - L
24 965643 Gearbox Lid Weldment - Farm King
25 907138 HitchTop Bar Weldment
26 961876 1/2" x 1-1/2" Clevis Pin (Pl)
27 965445 4-Blade Fan Weldment (500)
907118 4-Blade Fan Weldment (600)
28 815575 50" Main Housing Weldment
29 965507 Drive Shaft Weldment 1-1/4" x 25-1/2" (500)
965613 Drive Shaft Weldment 1-1/4" x 25-1/2" (600)
30 961675 Bearing Flange 72Ms
31 965826 Shear Sprocket 13T #50 1-1/4" Bore
32 84498 1/4" Lock Nut (Pl)

17
Parts - 500 & 600 Snowblower
Item Part Number Description
33 9812440 1-1/4" x 18Ga Nr Washer (Br)
34 9812441 1-1/4" x 14Ga Nr Washer (Br)
35 9812442 1-1/4" x 10Ga Nr Washer (Br)
36 961882 1-1/4" Beveled Gear C 148
37 965069 Ø1-1/4" x 14-5/8" Fan Shft
38 961676 1-1/4" Bearing Ael206-104 (Rhp #1230)
39 965818 Bearing 1-1/4" w/ Collar
40 815218 Hitch A-Frame LHS
41 815219 3/8" x 2-1/2" 18-3/4" Hitch A-Frame
42 815580 50"/60" Spout Weldment
43 81593 Lock Washer 0.375
44 81527 Bolt Hex 0.25Nc x 1.00 Gr5 Pl
45 81549 Bolt Hex 0.313Nc x 0.75 Gr5 Pl
46 81677 Washer Lock 0.625 Pl
47 86171 Bolt Hex 0.375 Nc x 1.50
48 86170 Hex Bolt 0.375 Unc x 1.0
49 109343 Woodruff Key #609 .1875" x 1.125"
50 F512 PTO Shaft (500)
F612 PTO Shaft (600)
51 965646 1/2" x 1-1/4" x 18" Adj Bar
52 965631 Rchain #50 x 94 w/ Conn.
53 815585 50"/60" Spout Spacer
54 815586 50"/60" Spout Clamp
55 81570 Washer 0.375 Flat St Hs Pl
56 811792 Bolt Hex 0.375 x 1.50
57 812363 Nut Lock (Steel) 0.375 Grb Pl
58 965807 Top Link Pin (Cat.1), 5'Rc
59 965911 7/16" Linch Pin
60 965809 Lift Arm Pin Cat 1 w/ Nut & Washer
61 12779 Hairpin Clip #9
62 812364 Nut Lock (Steel) 0.500Nc Grb Pl
63 81627 1/2" x 3" Hex Bolt (Pl)
64 960135 Pto Shld Sprg (#661)
65 9812434 1/4" x 1 1/2" Cotter Pin (Pl)
66 910426 Safety Chain - All
67 81525 Bolt Hex 0.250Nc X 0.750 Gr5 Pl
68 812365 3/4" Lock Nut (Pl)
69 81545 1/4" Lock Washer (Pl)
70 81544 1/4" Hex Nut (Pl)
71 84336 3/4" x 4" Hex Bolt (Pl)
72 961658 1/4" Cable Clamp (Pl)

18
Parts - 500 & 600 Snowblower
Item Part Number Description
73 988999 3/8"Ø x 3/8" Socket Set Screw (Br)
74 968811 1/4" Sq x 2" Key
75 9812438 1" I.D. x 14Ga #8 Narrow Rim Washer (Pl)
76 9812425 1/4" x 1-1/4" Spring Pin
77 87553 Bolt Hex 0.500Nc x 1.75 Gr5 Pl
78 81637 0.50 Lock Washer
79 965624 Htch Adjment Pin Weldt
80 81636 1/2" Hex Nut (Pl)
81 906770 Hitch Spacer 1" OD x 2-1/4"
82 965616 Crank Cable 3/16" x 84"
83 86171 3/8" x 1-1/4" Hex Bolt (Pl)
84 81593 3/8" Lock Washer (Pl)
85 81592 3/8" Hex Nut (Pl)
86 965637 40Tooth Sprocket - 500 & 600
87 965806 3/16" Cable Clamp
88 965626 Hydraulic Swivel Weldment
89 965627 Hydraulic Cable - 3/16" x 58"
90 965628 Cylinder Mounting Bracket
91 81620 1/2" x 1-1/4" Hex Bolt (Pl)

20
Parts - 500 & 600 Snowblower
PTO Shaft Drawing