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SECTION 1:  IMPORTANT SAFE OPERATION PRACTICES

WARNING: 

This symbol points out important safety instructions which, if not followed, could endanger the

personal safety and/or property of yourself and others. Read and follow all instructions in this manual before
attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you
see this symbol—

heed its warning

.

WARNING: 

Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals

known to State of California to cause cancer and birth defects or other reproductive harm.

DANGER:

 

This machine was built to be operated according to the rules for safe operation in this manual. As with 

any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This 
machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety 
instructions could result in serious injury or death.

Training

1.

Read, understand, and follow all instructions on the 
machine and in the manual(s) before attempting to 
assemble and operate. Keep this manual in a safe place 
for future and regular reference and for ordering 
replacement parts. 

2.

Be familiar with proper operation of all controls. Know 
how to stop the machine and disengage them quickly.

3.

Never allow children under 14 years old to operate this 
machine. Children 14 years old and over should read and 
understand the operation instructions and safety rules in 
this manual and should be trained and supervised by a 
parent. 

4.

Never allow adults to operate this machine without 
proper instruction. 

5.

Thrown objects can cause serious personal injury. Plan 
your snow throwing pattern to avoid discharge of material 
toward roads, bystanders and the like. 

6.

Keep bystanders, helpers, pets and children at least 75 
feet from the machine while it is in operation. Stop 
machine if anyone enters the area.

7.

Exercise caution to avoid slipping or falling, especially 
when operating in reverse.

Preparation

1.

Thoroughly inspect the area where the equipment is to 
be used. Remove all door mats, newspapers, sleds, 
boards, wires and other foreign objects which could be 
tripped over or thrown by the auger/impeller.  

2.

Always wear safety glasses or eye shields during 
operation and while performing an adjustment or repair to 
protect your eyes. Thrown objects which ricochet can 
cause serious injury to the eyes.

3.

Do not operate without wearing adequate winter outer 
garments. Do not wear jewelry, long scarves or other 
loose clothing which could become entangled in moving 
parts. Wear footwear which will improve footing on 
slippery surfaces. 

4.

Use a grounded three wire extension cord and receptacle 
for all units with electric start engines. 

5.

Adjust collector housing height to clear gravel or crushed 
rock surfaces. 

6.

Disengage all clutch levers before starting the engine. 

7.

Never attempt to make any adjustments while engine is 
running, except where specifically recommended in the 
operator’s manual.

8.

Let engine and machine adjust to outdoor temperature 
before starting to clear snow. 

9.

To avoid personal injury or property damage use extreme 
care in handling gasoline. Gasoline is extremely 
flammable and the vapors are explosive. Serious 
personal injury can occur when gasoline is spilled on 
yourself or your clothes which can ignite. Wash your skin 
and change clothes immediately.

a.

Use only an approved gasoline container.

b.

Extinguish all cigarettes, cigars, pipes and other 
sources of ignition.

c.

Never fuel machine indoors. 

d.

Never remove gas cap or add fuel while the 
engine is hot or running.  

e.

Allow engine to cool at least two minutes before 
refueling.

f.

Never over fill fuel tank. Fill tank to no more than 
½ inch below bottom of filler neck to provide space 
for fuel expansion.

g.

Replace gasoline cap and tighten securely.

h.

If gasoline is spilled, wipe it off the engine and 
equipment. Move machine to another area. Wait 5 
minutes before starting the engine.

i.

Never store the machine or fuel container inside 
where there is an open flame, spark or pilot light 
(e.g. furnace, water heater, space heater, clothes 
dryer etc.).  

j.

Allow machine to cool at least 5 minutes before 
storing.

Operation

 

1.

Do not put hands or feet near rotating parts, in the auger/
impeller housing or discharge chute. Contact with the 
rotating parts can amputate hands and feet. 

2.

The auger/impeller clutch lever is a safety device. Never 
bypass its operation. Doing so, makes the machine 
unsafe and may cause personal injury. 

3.

The clutch levers must operate easily in both directions 
and automatically return to the disengaged position when 
released. 

4.

Never operate with a missing or damaged discharge 
chute. Keep all safety devices in place and working.

5.

Never run an engine indoors or in a poorly ventilated 
area. Engine exhaust contains carbon monoxide, an 
odorless and deadly gas. 

Summary of Contents for 521E

Page 1: ... unless the engine s exhaust system is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark a...

Page 2: ... authorized dealer You can locate the model number by standing behind the unit in the operating position and looking down at the dash panel A sample model plate is explained below For future reference please copy the model number and the serial number of the equipment in the space below CALLING CUSTOMER SUPPORT If you have difficulty assembling this product or have any questions regarding the cont...

Page 3: ... or repair to protect your eyes Thrown objects which ricochet can cause serious injury to the eyes 3 Do not operate without wearing adequate winter outer garments Do not wear jewelry long scarves or other loose clothing which could become entangled in moving parts Wear footwear which will improve footing on slippery surfaces 4 Use a grounded three wire extension cord and receptacle for all units w...

Page 4: ...se care and good judgment Contact your dealer or telephone 1 800 528 1009 for assistance and the name of your nearest servicing dealer Maintenance Storage 1 Never tamper with safety devices Check their proper operation regularly 2 Disengage all clutch levers and stop engine Wait until the auger impeller come to a complete stop Disconnect the spark plug wire and ground against the engine to prevent...

Page 5: ... Assembly WARNING Disconnect the spark plug wire and ground it against the engine to prevent unintended starting Raising Upper Handle Loosen the hand knob on each side of the handle Remove packing material if any Figure 3 Raise the upper handle in the direction shown in Figure 3 till it clicks into the operating position Make sure not to pinch or crimp the cable Tighten the hand knobs Attaching Co...

Page 6: ... thrower See Figure 6 Rotate the crank to align holes and insert the cotter pin Bend ends of cotter pin in opposite directions to secure See Figure 6 Figure 6 Secure eyebolt with 5 16 saddle washer and hex nut The cupped side of washer goes against the handle Adjust lower hex nut until the eyebolt is positioned so that the chute crank turns freely does not bind Move upper hex nut down against the ...

Page 7: ...dle the auger control handle is used to engage and disengage the augers The snow thrower is designed to be propelled by the rotation of the augers Pull the control handle back against the upper handle to engage the augers release to disengage Chute Crank Located on right side of dash panel the chute crank determines the direction that snow will be discharged Turn clockwise to discharge snow to the...

Page 8: ...uctions carefully prior to operating the electric starter Determine that your house wiring is a three wire grounded system Ask a licensed electrician if you are not certain If your house wiring system is not a three wire grounded system do not use this electric starter under any conditions If your home electrical system is grounded but a three hole receptacle is not available one should be install...

Page 9: ...Figure 12 The wheels shave plate and augers should all contact level surface Note that if the shave plate is adjusted too high snow may blow under the housing If the shave plate wears out excessively or the unit will not self propel the shave plate may be adjusted too low NOTE On new units or units with a new shave plate installed the augers may be slightly off the ground Figure 12 To adjust tip t...

Page 10: ... any maintenance The warranty on this snow thrower does not cover items that have been subjected to operator abuse or negligence To receive full value from the warranty operator must maintain the snow thrower as instructed in this manual Changing of engine governed speed will void engine warranty Some adjustments will have to be made periodically to maintain your unit properly All adjustments in t...

Page 11: ... Reinstall the belt cover Figure 17 Engine Refer to the separate engine operator s manual packed with your snow thrower for all engine maintenance procedures Check engine and snow thrower frequently for loose hardware and tighten as needed Lubrication Lubricate pivot points on the control handle and the extension spring at the end of the clutch cable with a light oil once every season and before s...

Page 12: ...rheats 1 Gasoline and oil not mixed correctly 2 Carburetor out of adjustment 1 Drain fuel tank and refill with proper fuel mixture 2 Refer to engine manual Loss of power 1 Spark plug wire loose 2 Vent in gas cap plugged 3 Exhaust port plugged 1 Connect and tighten spark plug wire 2 Clear vent 3 Clean port Excessive vibration 1 Loose parts or damaged auger 1 Stop engine immediately and disconnect s...

Page 13: ...able Housing w o Throttle 9 747 0956 Auger Bail Gull Wing 10 749 0711A Upper Handle Gull Wing 5 9 10 7 4 8 3 6 2 7 4 1 NOTE For painted parts please refer to the list of color codes below Please add the applicable color code wherever needed to the part number to order a replacement part For instance if a part numbered 700 xxxx is painted Cub Yellow the part number to order would be 700 xxxx 0716 C...

Page 14: ...14 Model 521E 7 22 10 46 37 31 34 13 21 38 3 30 35 6 27 39 40 1 20 14 6 35 30 6 5 28 25 45 42 13 44 7 22 33 9 17 18 15 4 2 11 26 19 26 16 32 23 12 36 41 8 ...

Page 15: ...9 Lock Washer 30 741 0600 Ball Bearing 31 746 0910A Cable Clutch 32 748 0234 Spacer 33 749 0796 Handle Lower 34 756 0313 Flat Idler 35 784 5174 Bearing Cup 36 784 5176 Cover Belt 37 784 5175B Idler Brake Bracket 38 684 0114 Blower Housing 39 784 5485 Auger Ass y Comp 40 753 0613 Auger Rubber Replacement 41 710 0352 Hex Washer Screw 42 784 5720 Crank Bracket 43 710 0451 Cap Screw 44 736 0242 Bell W...

Page 16: ...16 Model 521E 5 3 5 20 29 22 16 7 4 6 23 8 9 27 2 10 28 26 21 7 25 7 13 15 14 19 18 24 11 17 ...

Page 17: ...5 1425 Switch Key Recoil Start 17 726 0100 Push Cap 18 731 1089A Choke Cover 19 731 1133B Spilling Cup 20 731 2109 Shroud 21 Beige 21 735 0234 Rubber Grommet 22 736 0119 Lock Washer 23 736 0185 Flat Washer 24 736 0225 Internal Lock Washer 25 736 0451 Saddle Washer 26 747 0697 Eyebolt 27 747 0737 Upper Chute Crank 28 750 0785 Spacer 29 7510009636 Mitten Grip Handle NOTE For painted parts please ref...

Page 18: ...2 705 5139A Support Bracket Gas Tank 3 710 0157 Hex Screw 5 16 24 x 75 4 710 1003 Special Screw 5 710 1652 Self Tapping Screw 6 710 3013 Hex Screw 1 4 20 x 50 7 710 3025 Hex Screw 5 16 24 x 625 8 726 0152 Mounting Clamp 9 726 0205 Hose Clamp 10 731 2113A Cup 11 736 0119 Lock Washer 12 736 0242 Beleville Washer 13 736 0329 Lock Washer 14 741 0475 Plastic Bushing 15 Recoil Handle Obtain from engine ...

Page 19: ...19 Model 521E ...

Page 20: ...adet equipment used commercially is warranted for one year only Commercial use is defined as either having hired operators or used for income producing purposes Items not covered The warranty does not cover routine maintenance items such as lubricants filters oil fuel air and hydraulic cleaning tune ups brake and or clutch inspection adjustments made as part of normal maintenance blade sharpening ...

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