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16

Pull the brake bracket assembly towards the cable 
guide roller and unhook the auger cable “Z” fitting.

Remove the upper bolts and lock washers which 
attach the auger housing assembly to the frame 
assembly using a 9/16” wrench. See Figure 17.

Separate the auger housing from the frame 
assembly by tilting the housing forward and pulling 
up the handles.

Using a 1/2” wrench, remove the hex screw and 
belleville washer from the center of the pulley on 
the auger housing. Lift the brake bracket assembly 
out of the pulley groove and remove the pulley. Be 
careful not to lose the key. See Figure 19.

Figure 19

Remove and replace auger belt inside belt keepers.

Reassemble pulley to auger housing with hex 
screw and belleville washer (cupped side toward 
the pulley). Make sure key is in place on shaft and 
brake puck is seated in the pulley groove.

Reassemble the belt cover and chute directional 
control.

Proper Adjustment: 

With the auger clutch lever in the 

disengaged position the top surface of the new belt 
should be even with the outside diameter of the pulley.

To adjust, disconnect ferrule from brake bracket 
assembly and thread ferrule in (towards idler) to 
increase tension on belt, and out to decrease 
tension.

NOTE: 

The brake puck must always be firmly seated in

the pulley groove when the auger control is in the
disengaged position.

Drive Belt

Unhook the extension spring from the belt cover 
plate. See Figure 20.

Remove drive belt from the engine pulley and 
bottom drive pulley. Refer to Figure 20.

Replace belt and reassemble in reverse order.

Reassemble the two halves of the unit hooking the 
lower portion of the auger housing over the 
stationary shoulder bolts in the frame assembly.

Figure 20

Secure the two halves with the two bolts and lock 
washers removed earlier. Refer to Figure 17.

Attach the “Z” fitting of the cable into the brake 
bracket assembly. Refer to Figure 18.

Slip the auger control belt over engine pulley.

Insert ferrule on auger idler rod into bracket 
assembly and secure with flat washer and cotter 
pin. Reassemble the large shoulder bolt and lock 
washer as shown in Figure 17. 

Reassemble belt cover and chute crank.

Changing Friction Wheel Rubber

The rubber on the friction wheel is subject to wear and 
should be checked after the first 25 hours of operation, 
and periodically thereafter. Replace the friction wheel 
rubber if any signs of wear or cracking are found.

Drain the gasoline from the snow thrower, or place 
a piece of plastic under the gas cap.

Tip the snow thrower up and forward, so that it rests 
on the housing.

Remove six screws from the frame cover 
underneath the snow thrower. 

Remove the left wheel from the axle.

Using a 7/8” wrench, hold the hex shaft and remove 
the hex bolts and cupped washer and bearing from 
left side of the frame. See Figure 21.

Holding the friction wheel assembly, slide the hex 
shaft out of the left side of the unit. The spacer on 
the right side of the hex shaft will fall and the 
sprocket should remain hanging lose in the chain.

Lift the friction wheel assembly out between the 
axle shaft and the drive shaft assemblies.

Brake Bracket Assembly

Auger Belt

Hex Screw

Belleville Washer

Belt Keepers

Auger Pulley

Idler Pulley

Drive Belt

Extension 
Spring

Belt Cover

Summary of Contents for 31AE993I401

Page 1: ...d 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 ...

Page 2: ...ial number of the equipment in the space below ENGINE INFORMATION The engine manufacturer is responsible for all engine related issues with regard to performance power rating specifications warranty and service Please refer to the engine manufacturer s Owner s Operator s Manual packed separately with your unit for more information CALLING CUSTOMER SUPPORT Please do NOT return the unit to the retai...

Page 3: ... 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 ...

Page 4: ...cessories approved by the manufacturer e g wheel weights tire chains cabs etc 20 If situations occur which are not covered in this manual use care and good judgment Contact your dealer or telephone 1 800 800 7310 for assistance and the name of your nearest servicing dealer MAINTENANCE AND STORAGE 1 Never tamper with safety devices Check their proper operation regularly Refer to the maintenance and...

Page 5: ...ments as instructed later on in this section before operating your snow thrower Failure to follow these instructions may cause damage to the snow thrower Remove the lower plastic wing nut cupped washer and carriage bolt from each side of the lower handle See Figure 2 Figure 2 Raise the upper handle assembly until it locks over the lower handle See Figure 3 Look at the lower rear of the snow throwe...

Page 6: ...rating Chute Tilt Control The distance snow is thrown can be changed by adjusting the angle of the chute assembly Move the chute tilt control forward to decrease the distance toward the rear to increase See Figure 7 Discharge Chute The angle of the discharge chute controls the distance that the snow is thrown Tilt the discharge chute up for greater distance tilt down for less distance Skid Shoe Th...

Page 7: ...chute directional control is located on the left hand side of the snow thrower To change the direction in which snow is thrown turn the chute directional control as follows Turn clockwise to discharge to the left Turn counterclockwise to discharge to the right Wheel Steering Controls The left and right wheel steering controls are located on the underside of the handles and are used to assist in st...

Page 8: ... 120 volt AC household current It must be used with a properly grounded three prong receptacle at all times to avoid the possibility of electric shock Follow all instructions carefully prior to operating the electric starter 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 ho...

Page 9: ...tion proceed as follows to safely clean the chute and chute opening 1 Release both the Auger Control Lever and the Traction Auger control Lock Lever 2 Stop the engine by removing the ignition key 3 Remove the clean out tool from the clip which secures it to the rear of the auger housing 4 Use the shovel shaped end of the clean out tool to remove any snow and ice in the discharge chute WARNING Neve...

Page 10: ... make any adjustments while engine is running NOTE It may be helpful to read Section 3 Knowing Your Snow Thrower to help identify certain areas of the snow thrower before performing adjustments Traction Control and Shift Lever To check the adjustment of the traction control and shift lever proceed as follows Move the shift lever into sixth 6 position With the traction control released push the sno...

Page 11: ...o check for correct adjustment as instructed before operating the snow thrower Skid Shoe Adjustment The space between the shave plate and the ground can be adjusted by repositioning the skid shoes For close snow removal as when using on a smooth concrete or asphalt driveway place the skid shoes in the low position Use the middle or high position when the area to be cleared is uneven When operating...

Page 12: ...pin clip and the washer NOTE Make certain to check for correct adjustment of the shift rod as instructed under Final Adjustments in the Assembly Section before operating the snow thrower Figure 12 Auger Control Adjustment Refer to Auger Control Test on page 9 to adjust the auger control Make certain to check for correct adjustment as instructed before operating the snow thrower Chute Assembly The ...

Page 13: ...uretor adjustments may be required to compensate for differences in fuel temperature altitude and load Refer to the engine manual for instructions Lubrication Gear Shaft Lubricate the gear shaft with 6 in 1 grease part number 737 0170 at least once a season or after every 25 hours of operation Refer to Figure 13 IMPORTANT Keep all grease and oil off the rubber friction wheel and drive plate Engine...

Page 14: ...racked or excessively worn out belts Replace belts as necessary as outlined in Servicing your snow thrower Traction Control Auger Control Lock The cams on the ends of the control rods which interlock the traction drive and auger drive clutches must be lubricated at least once a season or every 25 hours of operation using a multi purpose automotive grease The cams can be accessed beneath the handle...

Page 15: ...the specific steps listed under respective sub headings Disconnect the chute crank assembly at the discharge chute end by removing the hairpin clip and the two flat washers Remove the plastic belt cover located near the engine by removing the three self tapping screws and flat washers that secure it See Figure 17 Remove the large shoulder bolt and washer on the left hand side of the engine pulley ...

Page 16: ... and reassemble in reverse order Reassemble the two halves of the unit hooking the lower portion of the auger housing over the stationary shoulder bolts in the frame assembly Figure 20 Secure the two halves with the two bolts and lock washers removed earlier Refer to Figure 17 Attach the Z fitting of the cable into the brake bracket assembly Refer to Figure 18 Slip the auger control belt over engi...

Page 17: ...r Secure the frame cover with six self tapping screws Put the snow thrower down to its normal operating position NOTE If you placed plastic film under the gas cap be certain to remove it Figure 22 Engine Refer to separate engine manual for all engine maintenance procedures Off season Storage WARNING Never store engine with fuel in tank indoors or in poorly ventilated areas where fuel fumes may rea...

Page 18: ... 3 Exhaust port plugged 1 Connect and tighten spark plug wire 2 Remove ice and snow from gas cap Be certain vent hole is clear 3 Refer to the engine manual Engine overheats 1 Carburetor not adjusted properly 1 Refer to the engine manual or have the carburetor adjusted by an authorized engine service dealer Excessive vibration 1 Loose parts or damaged auger 1 Stop engine immediately and disconnect ...

Page 19: ...Key Hi Pro 3 16 x 3 4 7 714 0135 91 Woodruff Key 1 4 x 3 4 8 716 0111 Snap Ring 875 Dia 9 717 0299 Gear Worm Double Thread LH 10 717 1425 Gear Worm LH 11 721 0145 Seal Oil 875 ID 12 721 0325 Plug 1 4 x 437 13 736 0266 Washer Flat 1 52 x 2 0 14 736 0291 Washer Flat 88 x 1 38 15 737 3000 Lube Fitting 3 16 Drive 16 738 0275 Shaft Worm Gear 17 741 0184 Bearing Thrust 877 18 741 0217 Sleeve Bearing 877...

Page 20: ... 3 2 4 5 5 5 7 6 59 25 25 40 42 8 18 31 59 25 43 27 13 17 13 9 14 25 26 34 34 26 32 14 14 21 21 16 10 23 12 13 35 11 37 25 13 22 19 13 33 25 14 41 28 15 36 38 44 45 46 47 14 25 49 52 50 53 54 55 56 51 48 Model E993I 58 57 60 ...

Page 21: ...1 0475 Plastic Bushing 34 741 0494 Flange Bushing 35 747 0980 Idler Rod Auger 36 754 0222A V Belt 37 756 0178 Flat Idler 38 756 0243 Pulley 39 784 0385A Idler Bracket Auger 40 784 5076 Support Bracket 41 784 5123 Chute Crank Bracket 42 784 5710 Support Plate 43 784 5711 Chute Bracket 44 618 0257 Gear Assembly 45 705 5210A Spiral Assembly RH 46 705 5211A Spiral Assembly LH 47 684 0093B Auger Housin...

Page 22: ... 42 5 39 23 34 67 14 51 27 75 71 64 58 22 21 29 13 56 52 37 22 2 33 13 29 18 19 47 49 61 48 15 62 27 51 66 42 3 63 33 47 30 65 1 16 56 47 19 49 15 48 61 54 62 41 77 60 77 82 82 60 40 57 38 20 20 7 59 43 31 70 44 28 61 55 69 30 47 19 72 50 26 16 16 54 50 26 53 68 68 18 78 79 80 81 6 ...

Page 23: ...Pin 38 714 0388 Key 39 715 0249 Roll Pin 40 717 0302 Drive Plate 41 732 0121 Extension Spring 42 732 0209 Extension Spring 43 736 0119 Lock Washer 5 16 44 736 0158 Lock Washer 5 8 45 736 0160 Flat Washer 46 736 0163 Flat Washer 47 736 0217 Lock Washer 48 736 0242 Bell Washer 49 710 0604A Self tapping Screw 5 16 18 x 625 50 736 0300 Flat Washer 51 736 0329 Lock Washer 52 736 0623 Flat Washer 53 712...

Page 24: ... Model E993I 1 1 2 3 4 5 4 5 19 19 19 19 6 6 7 7 8 9 9 10 21 13 29 11 22 24 31 17 27 23 15 26 21 15 14 25 16 18 22 11 20 15 12 28 30 15 23 13 21 33 32 32 A A A A 33 34 34 35 35 36 37 38 39 40 41 42 43 44 ...

Page 25: ...andle RH 30 749 0991 Lower Handle 31 750 0963 Clutch Rod Connector 32 710 1625 Oval C Sunk Screw 33 712 0127 Flat Weld Nut 34 725 0157 Cable Tie 35 746 0950 Trigger Control 36 625 0007 Light Assembly 725 1658 Halogen Lamp 725 1672 Lens Assembly 37 705 5218 Handle Engagement RH 38 705 5219 Handle Engagement LH 39 710 1003 Special B Screw 40 712 0271 Hex Sems Nut 41 712 0429 Hex Lock Nut 42 720 0232...

Page 26: ... 10 731 2531 Belt Cover 11 732 0303 Extension Spring 12 736 0159 5 16 Washer 13 736 0217 Lock Washer 14 736 0242 Beleville Washer 15 736 0264 Flat Washer 17 738 0215A Shoulder Screw 18 748 0234 Shoulder Spacer 19 754 0131 V Belt 20 756 0240 Flat Idler 21 756 0241B Double Pulley 22 784 5726 Idler Bracket 23 712 0324 Hex Lock Nut 1 4 20 24 732 0705 Cable Guide 25 736 0173 Flat Washer 26 629 0071 Ext...

Page 27: ...p 18 784 5594 Cable Bracket 19 784 5604 Chute Tilt Handle 20 684 0102 Handle Panel Assembly w Tilt 21 710 0459A Hex Bolt 3 8 24 x 1 5 22 710 0599 TT Screw 1 4 20 x 0 5 23 711 0653 Clevis Pin 24 712 0116 Jam Nut 25 784 5682 Handle Suppt Bracket 3 8 RH 26 714 0104 Cotter Pin 27 732 0145 Spring 28 732 0193 Spring 29 732 0746 Torsion Spring 30 735 0199A Rubber Bumper 31 736 0105 Bell Washer 32 784 568...

Page 28: ...ms such as lubricants filters blade sharpening tune ups brake adjustments clutch adjustments deck adjustments and normal deterioration of the exterior finish due to use or exposure d MTD LLC does not extend any warranty for products sold or exported outside of the United States its possessions and territories except those sold through MTD LLC s authorized channels of export distribution e Parts th...

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