MTD 644E - Manual

5 SECTION 2: CONTENTS OF HARDWARE PACK (Boxed Units) Lay out the hardware according to the illustration below for identification purposes. Part numbers are shown in parentheses. (Hardware pack may contain extra items which are not used on your unit.) NOTE: The augers are secured to the spiral shaft ...

6 SECTION 3: ASSEMBLING YOUR SNOW THROWER NOTE: References to right or left side of the snow thrower are determined from behind the unit in theoperating position. The “operator’s position” is definedas standing directly behind the snow thrower, facing thehandle panel. NOTE: This Operator’s Manual co...

7 Assembly (Crated Unit) WARNING: Disconnect the spark plug wire and ground it against the engine toprevent unintended starting. • Remove the lower two plastic wing knobs, cupped washers and carriage bolt (eyebolt on the left side) from the lower handle. See Figure 3. Figure 3 • Raise the upper hand...

8 • Insert curved end of the Z fitting into the top hole in the triangular metal tab on the auger control grip. The triangular metal tab on the auger control grip must face the center of the handle panel. See Figure 6. Figure 6 • Place the auger control on top of the left handle. The triangular meta...

9 • Thread the ferrule onto the shift rod, up or down the shift rod and align with the far hole on the narrow side of the shift lever assembly behind the handle panel. See Figure 10. Figure 10 • Secure the ferrule to the shift arm assembly with the flat washer and hairpin clip. Attaching Clutch Cabl...

10 Attaching The Chute Directional Control (Hardware C) • Thread one hex nut about halfway onto eye bolt on the chute directional control. • Insert eye bolt through the hole provided in the left handle. See Figure 13. • Secure with cupped washer (cupped side against the handle) and other hex nut. Do...

11 If your unit is not equipped with a lamp, contact Customer Support as instructed on page 2 for information regarding price and availability. Snow Thrower Model Electric Light Kit 664G OEM-390-255 NOTE: The engines found on snow thrower models 614E and S644E are NOT equipped with an alternatorand ...

12 • Crank clockwise to discharge to the left. • Crank counterclockwise to discharge to the right. Clean-Out Tool WARNING: Never use your hand to clear a clogged discharged chute. Shut offengine and remain behind handles untilall moving parts have stopped beforeunclogging. The chute clean-out tool i...

13 WARNING: The optional electric starter is equipped with a grounded three-wirepower cord and plug, and is designed tooperate on 120 volt AC household current.It must be used with a properly groundedthree-prong receptacle at all times to avoidthe possibility of electric shock. Follow allinstruction...

14 Check the adjustment of the auger control as follows: • When the auger control is released and in the disengaged “up” position, the cable should have very little slack. It should NOT be tight. • In a well-ventilated area, start the snow thrower engine as instructed earlier in this section under t...

15 WARNING: The muffler, engine, and their surrounding areas become hot and cancause a burn. Do not touch. • Discharge snow downwind whenever possible. Slightly overlap each previous swath. • Set the skid shoes 1/4” below the scraper bar for normal usage. The skid shoes may be adjusted upward for ha...

16 • With the traction control is engaged, the friction wheel must contact the drive plate. See Figure 20. Figure 20 If adjustment is necessary: • Loosen the jam nut on the traction control cable and thread the cable in or out as necessary. • Retighten the jam nut to secure the cable when correct ad...

17 NOTE: Make certain to check for correct adjustment of the shift rod as instructed in the Final Adjustmentssection before operating the snow thrower. Drive Wheels • The wheels may be adjusted for two different methods of operation. Follow the steps below for adjustment. See Figure 22. Figure 22 On...

18 Auger Shaft • At least once a season, remove shear bolts on auger shaft. Oil or spray lubricant inside shaft and lubricate the auger bearings. See Figure 24. Figure 24 Drive and Shifting Mechanism Remove rear cover. Oil any chains, sprockets, gears, bearings, shafts, and shifting mechanism at lea...

19 Augers • The augers are secured to the spiral shaft with two shear bolts and hex lock nuts. If you hit a hard foreign object or ice jam, the snow thrower is designed so that the bolts may shear.Refer to Figure 24. • If the augers will not turn, check to see if the bolts have sheared. Replacement ...

20 Drive Belt • Follow first four steps of previous instructions. • Pull idler pulley up, and lift belt off engine pulley and friction wheel disc. See Figure 28. • Using a wrench, loosen the nut on the stop bolt until the support bracket rests on the auger pulley.See Figure 30. • Slip belt between f...

21 • Run engine until fuel tank is empty and engine stops due to lack of fuel. • Drain carburetor by pressing upward on bowl drain, located below the carburetor cover. NOTE: Fuel stabilizer, or “Sta-Bil” (Included with certain units), is an acceptable alternative in minimizingthe formation of fuel g...

28 Models 614E REF. NO. PART NO. DESCRIPTION 1. 710-1652 Hex Washer Screw 1/4-20 x.5 2. 731-1324 Belt Cover 3. 732-0339 Extension Spring 4. 710-0627 Hex Screw 5/16-24 x.75 5. 710-3005 Hex Cap Screw 3/8-16 x 1.25 6. 05896A Drive Clutch Bracket 7. 748-0234 Shoulder Spacer 8. 756-0985 Pulley Half 9. 75...

MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its possessions and territories. “MTD”warrants this product against defects in material and workmanship for a period of two (2) years...