Yard-Man 31AE553F401 Operator'S Manual Download Page 11

 11

SECTION 8:  ADJUSTMENTS

WARNING: Never attempt to clean chute
or make any adjustments while engine is
running.

CHUTE ASSEMBLY 

The distance snow is thrown can be adjusted by 
adjusting the angle of the chute assembly. Refer to 
the Control section of this manual.

1.

The remote chute control cables have been pre-
adjusted at the factory. Move the remote chute
lever on the control panel back and forward to
adjust angle of the chute asssembly. 

SKID SHOE 

The space between the shave plate and the ground
can be adjusted. For close snow removal, place skid
shoes in the low position. Use middle or high position
when area to be cleared is uneven. 

1.

Adjust skid shoes by loosening the four hex nuts
and carriage bolts and moving skid shoes to
desired position. 

2.

Make certain the entire bottom surface of skid 
shoe is against the ground to avoid uneven wear 
on the skid shoes. 

3.

Retighten nuts and bolts securely.

NOTE: It is not recommended that you operate this
snow thrower on gravel as loose gravel can be easily
picked up and thrown by the auger causing an injury
or damage to the snow thrower. 

4.

If for some reason, you have to operate the 
snow thrower on gravel, keep the skid shoe in 
the highest position for maximum clearance 
between the ground and the shave plate. 

TRACTION DRIVE CLUTCH 

Refer to the Final Adjustment section of the Set-Up 
Instructions to adjust the traction drive clutch. To 
check the adjustment, proceed as follows:

1.

With the snow thrower tipped forward (be certain
to drain the gasoline or place plastic film under
the gas cap if the snow thrower has already
been operated), remove the frame cover
underneath the snow thrower by removing six
self-tapping screws.

2.

With the traction drive clutch released, there 
must be clearance between the friction wheel 
and the drive plate in all positions of the shift 
lever. 

3.

With the traction drive clutch engaged, the 
friction wheel must contact the drive plate 
(shown in Figure 22).

If adjustment is necessary, loosen the jam nut on the 
traction drive cable and thread the cable in or out as 

necessary. See Figure 12. Tighten the jam nut to 
secure the cable when correct adjustment is 
reached. Reassemble the frame cover.
NOTE: If you placed plastic under the gas cap, be 
certain to remove it. 

AUGER CLUTCH 

To adjust the auger clutch, refer to Final Adjustment 
section of Set-Up Instructions.

Figure 12  

SHIFT ROD 

To adjust the shift rod, proceed as follows.

1.

Remove the hairpin clip and flat washer from the
shift handle under the handle panel.  

2.

Place shift lever in sixth (6) position or fastest 
forward speed.

3.

Push shift arm assembly down as far as it will 
go.

4.

Rotate the ferrule up or down on the shift rod as 
necessary until the ferrule lines up with the 
upper hole in the shift lever. See Figure 12.

5.

Insert ferrule from the left side of the 
snowthrower into the upper hole in shift lever. 

6.

Reinstall the hairpin clip and the washer.

Make certain to check for correct adjustment before 
operating the snow thrower.

CARBURETOR 

WARNING: If any adjustments are made 
to the engine while the engine is running 
(e.g. carburetor), keep clear of all 
moving parts. Be careful of heated 
surfaces and mufflers. 

Minor carburetor adjustments may be required to 
compensate for differences in fuel temperature, 
altitude and load.

Clutch
Grip

Hex Jam Nut

(Thread 

here)

nut 

Cable is straight
but not tight 

Z Fitting

Shift 
Rod

Ferrule

Shift 
Handle

(Viewed from under the handle panel)

Handle 

Panel

Summary of Contents for 31AE553F401

Page 1: ...quipped 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 th...

Page 2: ...r foreign objects Disengage all clutches and shift into neutral before starting engine Do not operate equipment without wearing adequate winter outer garments Do not wear jewelry long scarfs or other...

Page 3: ...wheel weights counter weights cabs etc Never operate the snow thrower without good visibility or light Always be sure of your footing and keep a firm hold on the handles Walk never run Muffler and en...

Page 4: ...r if you have any question regarding the controls operation or maintenance of this snow thrower please contact the Customer Support Department You can reach them by calling 1 800 800 7310 Before you c...

Page 5: ...urposes If so cut the cable ties and remove the chute crank at this time 3 Raise the upper handle assembly until it locks over the lower handle See Figure 2 Figure 2 4 Look at lower rear of snow throw...

Page 6: ...engages the teeth on the chute assembly See Figure 7 Tighten the nuts on the chute crank support bracket securely 12 Adjust the eyebolt on the chute crank so the chute crank does not touch the engine...

Page 7: ...oosen the lock nut on the traction drive cable and unthread the cable one turn 8 If the wheels can still be turned when you engage the traction drive clutch grip loosen the lock nut on the traction dr...

Page 8: ...the left handle and the augers will remain engaged Release the traction drive clutch to stop both the augers and wheel drive auger drive clutch must also be released CHUTE CRANK The chute crank is lo...

Page 9: ...in the fuel shut off valve is in the open vertical position 3 Make certain the auger and drive clutch levers are in the disengaged released position 4 Move throttle control to FAST position 5 Insert i...

Page 10: ...e of the handles and are used to steer your snowthrower NOTE The drive clutch must be engaged when using the triggers to steer the snow thrower 1 To turn right squeeze the right trigger lever and guid...

Page 11: ...r underneath the snow thrower by removing six self tapping screws 2 With the traction drive clutch released there must be clearance between the friction wheel and the drive plate in all positions of t...

Page 12: ...f of the rubber friction wheel and aluminum drive plate GEAR BOX The worm gear box has been filled with grease at the factory If disassembled for any reason lubricate with 1 5 ounces of Shell Alvania...

Page 13: ...on two sides See Figure 15 2 Reassemble new skid shoes with the four carriage bolts belleville washers cupped side goes against skid shoes and hex nuts Make certain the skid shoes are adjusted to be...

Page 14: ...lt brake Route belts under and to the left of the flat idler pulley Hold the belts upward in this position 8 While lifting up on the handles bring the frame assembly close to the auger housing and pla...

Page 15: ...cracking are found 1 Drain the gasoline from the snow thrower or place a piece of plastic under the gas cap 2 Tip the snow thrower up and forward so that it rests on the housing 3 Remove six screws fr...

Page 16: ...e If you placed plastic under the gas cap be certain to remove it ENGINE Refer to separate engine manual for all engine maintenance procedures SECTION 11 OFF SEASON STORAGE WARNING Never store engine...

Page 17: ...er Spark plug wire loose Gas cap vent hole plugged Exhaust port plugged Connect and tighten spark plug wire Remove ice and snow from cap Be certain vent hole is clear Clean see Maintenance section of...

Page 18: ...TE 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 7...

Page 19: ...Adapter 19 732 0611 Extension Spring 20 736 0119 Lock Washer 21 736 0169 Lock Washer 22 736 0174 Wave Washer 23 736 0188 Flat Washer 24 736 0242 Belleville Washer 25 736 0463 Flat Washer 26 737 3007...

Page 20: ...7 49 36 47 36 47 11 41 42 11 9 43 16 30 9 51 13 9 26 34 4 25 7 56 57 54 54 55 57 53 31 21 NOTE For painted parts please refer to the list of color codes below Please add the applicable color code wher...

Page 21: ...716 0102 Snap Ring 25 721 0263 Adhesive Loctite 26 732 0209 Extension Spring 27 732 0264 Extension Spring 28 736 0105 Bell Washer 29 736 0160 Flat Washer 30 736 0169 Lock Washer 31 736 0188 Flat Washe...

Page 22: ...20 x 0 75 6 712 0429 Hex Lock Nut 5 16 18 7 712 3027 Flange Lock Nut 8 731 0851A Chute Flange Keeper 9 731 1300A Lower Chute 10 731 1313B Chute Tilt Cable Guide 11 731 1320 Upper Chute 12 736 0159 5 1...

Page 23: ...ock 18 748 0363 Pawl Handle Lock 19 784 5619A Shift Handle 20 784 5679 Handle Support Bracket 5 8 LH 21 784 5680 Handle Support Bracket 5 8 RH 22 784 5681 Handle Support Bracket 3 8 LH 23 784 5682 Han...

Page 24: ...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 numbere...

Page 25: ...Bell Washer 23 736 0275 Flat Washer 24 736 0451 Saddle Washer 25 741 0475 Plastic Bushing 26 747 0620A Shift Rod Upper 27 747 0621 Shift Rod Lower 28 747 0737 Chute Crank Upper 29 749 0951 Lower Handl...

Page 26: ...20 754 0346 V Belt 21 754 0430A Belt 22 756 0313 Flat Idler 23 756 0569 Pulley Half 24 756 0967 Auger Pulley 25 756 0986 Pulley Half 26 756 0987 Pulley Half Ref No Part No Code Description 11 3 4 17 8...

Page 27: ...parts While ordering do not forget to mention the applicable part number Tire Chain Part Number Drift Cutter Kit Part Number OEM 390 679 Wheel Size with Sno Hog Tire Wheel Size without Sno Hog Tire Ti...

Page 28: ...Department of MTD PRODUCTS INC Transportation charges Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser Units exported out of th...

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